ALBERT

Description / Table of Contents: PREFACE The CERN Accelerator School (CAS) was founded in 1983 with the aim to preserve and disseminate the knowledge accumulated at CERN (European Organization for Nuclear Research) and elsewhere on particle accelerators and storage rings. This is being achieved by means of a biennial programme of basic and advanced courses on general accelerator physics supplemented by specialized and topical courses as well as Workshops. The chapters included in this present volume are taken from one of the specialized courses, Applied Geodesy for Particle Accelerators, held at CERN in April 1986. When construction of the first large accelerators started in the 1950's, it was necessary to use geodetic techniques to ensure precise positioning of the machines' components. Since that time the means employed have constantly evolved in line with technological progress in general, while a number of specific developments - many of them achieved at CERN - have enriched the range of available instruments. These techniques and precision instruments are used for most of the world's accelerators but can also be applied in other areas of industrial geodesy: surveying of civil engineering works and structures, aeronautics, nautical engineering, astronomical radio-interferometers, metrology of large dimensions, studies of deformation, etc. The ever increasing dimensions of new accelerators dictates the use of the best geodetic methods in the search for the greatest precision, such as distance measurements to 10 -7, riqorous evaluation of the local geoid and millimetric exploitation of the Navstar satellites. At the same time, the powerful computer methods now available for solving difficult problems are also applicable at the instrument level where data collection can be automatically checked. Above all, measuring methods and calculations and their results can be integrated into data bases where the collection of technical parameters can be efficiently managed. In order to conserve the logical presentation of the different lectures presented at the CAS school, the chapters presented here have been grouped under four main topics. The first and the fourth deal with spatial and theoretical geodesy, while the second and third are concerned with the work of applied geodesy, especially that carried out at CERN. Readers involved in these subjects will find in the following chapters, if not the complete answer to their problems, at least the beginning of solutions to them.

Description / Table of Contents: Biolaminated deposits, produced by microbial communities, were studied in modern peritidal environments and in the rock record. The term microbial, mat refers to modern, the term stromatolite to ancient analogs. The term biolaminated deposits was used to encompass both microbial mats and stromatolites. Microbial mat environments studied are the Gavish Sabkha, the Solar Lake, both hypersaline back-barrier systems at the Gulf of Aqaba, Sinai Peninsula, and the "Farbstreifen-Sandwatt" (versicolored sandy tidal flats) on Mellum, an island in the estuary embayment of the southern North Sea coast. Three facies-relevant categories were distinguished: (i) the mat-forming microbiota, (2) environmental conditions controlling mat types and lithology, (3) bioturbation and grazing. Cyanobacteria account for biogenic sediment accretion in all cases studied. Three major groups occur: filamentous cyanobacteria, coccoid unicells with binary fission and those with multiple fission. In the presence of these groups the following mat types evolve: (i) continuously flat (stratiform) L~-laminae (occur in all environments studied); (2) translucent, vertically extended Lv-laminae (only Gavish Sabkha and Solar Lake); (3) nodular granules (only Gavish Sabkha). Basically, the development of mats is controlled by moisture. Thus high-lying parts where the groundwater table runs more than 40 cm below surface are bare of mats. These are: The circular slope and elevated center of the Gavish Sabkha, the shorelines of the Solar Lake and the episodically flooded upper supratidal zone of Mellum Island. The following situations of water supply were found to stimulate mat growth: (i) Capillary movement of groundwater to exposed surfaces, (2) shallowest calm water, both realized in the Gavish Sabkha and the Solar Lake. On Mellum Island, mats form in the lower supratidal zone, which is flooded in the spring tide cycle and wetted during low tide by capillary groundwater. Salinity is almost that of normal seawater, whereas in the Solar Lake, it ranges from 45 °/oo to 180 °/oo and in the Gavish Sabkha, it reaches more than 300 °/oo. Salinity increase is correlated with rising concentrations of magnesium and sulfate ions. In the Gavish Sabkha, episodic sheetfloods cause high-rate sedimentation which is accidental to the living mats. Episodic low-rate sedimentation stimulates the mats to grow through the freshly deposited sediment layer. This occurs predominantly on Mellum Island due to eolian transport. Within the Gavish Sabkha, mineralogy of sediments, community structures, standing crops, redox potentials and pH are highly correlative to the increasing evenness in moisture supply which is realized by the inclination of the system below mean sea level. These conditions bring about a lateral sequence of facies types which include (I) siliciclastic biolaminites at the coastal bar base, (2) nodular to biolaminoid carbonates at saline mud flats, (3) regularly stratified stromatolitic carbonates with ooids and oncoids within the hypersaline lagoon, (4) biolaminated sulfate towardthe elevated center. High-magnesium calcite in facies type 3 precipitates around decaying organic matter and forms also the ooids and oncoids. These occur predominantly within hydroplastic Lv-laminae which provide numerous nucleation centers. Within the Solar Lake, facies type 3 (stromatolitic carbonates with ooids and oncoids) is most important, and grows to extraordinary thickness at the lake's shelf. The regular alternation of dark and light laminae results from seasonally oscillating water depths. These conditions couple back over changing light and salinity intensities to changing dominance structures of mat-building communities. Increasing salinity correlates with decreasing water depth and accounts for the relative abundance of coccoid unicells and diatoms, both active producers of extracellular slimes (Lv-laminae). Water depths locally or temporarily increased favor surface colonization by Mic~ocoleu8 chthonoplastes (Lh-laminae). The biolaminated deposits of the versicolored tidal flats on Mellum Island are similar to facies type 1 of the Gavish Sabkha (siliciclastic biolaminites). Differences exist in the lithology: Sediments upon or through which the mats on Mellum Island grow are made up of clean sand. The grains originate predominantly from re-worked glacial sediments and are rounded to well rounded. By contrast, the strong angularity of siliciclastic grains in the Gavish Sabkha clearly shows their status as primary weathering products. In all environments studied, insects play a significant role. Mainly salt beetles contribute to the lebensspuren spectrum. There is no indication that burrowing and grazing beetles and dipterans are detrimental to the growing mat systems. According to the marine fauna, two distributional barriers exist: (i) physical and (2) biogeochemical factors. Physical barriers are (a) hypersalinity and barrier-closing, which restrict the marine fauna in the Gavish Sabkha and the Solar Lake to a few species, mainly meiofaunal elements such as ostracods and copepods. Only in the Gavish Sabkha, one marine gastropod species occurs which colonizes mud flats of lower salinity. A salinity barrier of about 70 °/oo separates the gastropod habitats from the zones of growing mats. Under reduced salinity, the snails are able to destroy the microbial mats completely. (b) Decreasing regularity of flooding in the microbial mat environment of Mellum Island excludes intertidal deformative burrowers such as cockles and lugworms. However, locally the mats are pierced by numerous dwelling traces. These stem from small polychaetes and amphipod crustaceans which are able to spread over the intertidal-supratidal boundary and settle up to the MHWS-Ievel. Biogeochemical barriers are oxygen depletion within the sediments, high ammonia and sulfide contents, which generate through bacterial break-down of organic matter. Within the highly productive mats of Mic~ocoleu8 chthonoplastes on Mellum Island, dwelling traces of marine polychaetes and amphipod crustaceans disappear due to these conditions. The name of the mat-forming species, Microcoleus chthonoplastes, indicates its capacity to form "soils" (Greek chthonos). While lithology is not altered, the presence of Mic~ocoleu8 mats leads to a habitat change which excludes trace-making "arenophile" invertebrate species and favors "chthonophile" species which do not leave traces. Stromatolitic microstructures studied in rock specimens were interpreted using modern analogs: Microcolumnar buildups in Precambrian stromatolites, ooids and oncoids were compared with those of modern microbial mats. The nodular to biolaminoid facies type found in the Gavish Sabkha was suggested to be an analog to the Plattendolomite facies of Permian Zechstein, North Poland. Studies of the Lower Jurassic ironstone of Lorraine clearly indicate that fungi have been involved in the formation of stromatolites, ooids and oncoids. In conclusion, the comparative study of microstructures in microbial mats and stromatolites reveals a better understanding in both fields. In many cases, it was geology which first revealed the similarity of recent forms to those ancient ones and consequently encouraged research into them.

Description / Table of Contents: Based on a series of tutorial lectures given at the School on Combinatorial Optimization, held at the Federal University of Rio de Janeiro, Brazil, July 8-19, 1985

Description / Table of Contents: M. G. Audley-Charles and A. Hallam: Introduction / Geological Society, London, Special Publications, 37:1-4, doi:10.1144/GSL.SP.1988.037.01.01 --- Neville J. Price, Geoffrey D. Price, and Sarah L. Price: Gravity glide and plate tectonics / Geological Society, London, Special Publications, 37:5-21, doi:10.1144/GSL.SP.1988.037.01.02 --- J. F. Dewey: Lithospheric stress, deformation, and tectonic cycles: the disruption of Pangaea and the closure of Tethys / Geological Society, London, Special Publications, 37:23-40, doi:10.1144/GSL.SP.1988.037.01.03 --- Robert Hall: Basement and cover rock history in western Tethys: HT-LP metamorphism associated with extensional rifting of Gondwana / Geological Society, London, Special Publications, 37:41-50, doi:10.1144/GSL.SP.1988.037.01.04 --- C. D. Mann and C. Vita-Finzi: Holocene serial folding in the Zagros / Geological Society, London, Special Publications, 37:51-59, doi:10.1144/GSL.SP.1988.037.01.05 --- D. H. Tarling: Gondwanaland and the evolution of the Indian Ocean / Geological Society, London, Special Publications, 37:61-77, doi:10.1144/GSL.SP.1988.037.01.06 --- M. G. Audley-Charles: Evolution of the southern margin of Tethys (North Australian region) from early Permian to late Cretaceous / Geological Society, London, Special Publications, 37:79-100, doi:10.1144/GSL.SP.1988.037.01.07 --- I. Metcalfe: Origin and assembly of south-east Asian continental terranes / Geological Society, London, Special Publications, 37:101-118, doi:10.1144/GSL.SP.1988.037.01.08 --- A. M. C. Şengör, Demir Altıner, Altan Cin, Timur Ustaömer, and K. J. Hsü: Origin and assembly of the Tethyside orogenic collage at the expense of Gondwana Land / Geological Society, London, Special Publications, 37:119-181, doi:10.1144/GSL.SP.1988.037.01.09 --- L. R. M. Cocks and R. A. Fortey: Lower Palaeozoic facies and faunas around Gondwana / Geological Society, London, Special Publications, 37:183-200, doi:10.1144/GSL.SP.1988.037.01.10 --- W. G. Chaloner and G. T. Creber: Fossil plants as indicators of late Palaeozoic plate positions / Geological Society, London, Special Publications, 37:201-210, doi:10.1144/GSL.SP.1988.037.01.11 --- J. B. Waterhouse: The nature, extent, and subsequent dispersal of the Permian Tethys / Geological Society, London, Special Publications, 37:211-212, doi:10.1144/GSL.SP.1988.037.01.12 --- Edith Kristan-Tollmann: Unexpected microfaunal communities within the Triassic Tethys / Geological Society, London, Special Publications, 37:213-223, doi:10.1144/GSL.SP.1988.037.01.13 --- Jacques Thierry: Structure and palaeogeography of the western Tethys during the Jurassic: tests based on ammonite palaeobiogeography / Geological Society, London, Special Publications, 37:225-234, doi:10.1144/GSL.SP.1988.037.01.14 --- Gerd E. G. Westermann: Middle Jurassic ammonite biogeography supports ambi-Tethyan origin of Tibet / Geological Society, London, Special Publications, 37:235-239, doi:10.1144/GSL.SP.1988.037.01.15 --- Derek V. Ager: Mesozoic Turkey as part of Europe / Geological Society, London, Special Publications, 37:241-245, doi:10.1144/GSL.SP.1988.037.01.16 --- P. W. Skelton: The trans-Pacific spread of equatorial shallow-marine benthos in the Cretaceous / Geological Society, London, Special Publications, 37:247-253, doi:10.1144/GSL.SP.1988.037.01.17 --- Jean-Claude Rage: Gondwana, Tethys, and terrestrial vertebrates during the Mesozoic and Cainozoic / Geological Society, London, Special Publications, 37:255-273, doi:10.1144/GSL.SP.1988.037.01.18 --- Brian R. Rosen and Andrew B. Smith: Tectonics from fossils? Analysis of reef-coral and sea-urchin distributions from late Cretaceous to Recent, using a new method / Geological Society, London, Special Publications, 37:275-306, doi:10.1144/GSL.SP.1988.037.01.19 --- T. C. Whitmore: Phytogeography of the eastern end of Tethys / Geological Society, London, Special Publications, 37:307-311, doi:10.1144/GSL.SP.1988.037.01.20

Description / Table of Contents: D. R. Bowes: Janet Watson—an appreciation and bibliography / Geological Society, London, Special Publications, 27:1-5, doi:10.1144/GSL.SP.1987.027.01.01 --- John Sutton and Janet Watson: The Lewisian complex: questions for the future / Geological Society, London, Special Publications, 27:7-11, doi:10.1144/GSL.SP.1987.027.01.02 --- R. G. Park and J. Tarney: The Lewisian complex: a typical Precambrian high-grade terrain? / Geological Society, London, Special Publications, 27:13-25, doi:10.1144/GSL.SP.1987.027.01.03 --- D. J. Fettes and J. R. Mendum: The evolution of the Lewisian complex in the Outer Hebrides / Geological Society, London, Special Publications, 27:27-44, doi:10.1144/GSL.SP.1987.027.01.04 --- J. Tarney and B. L. Weaver: Geochemistry of the Scourian complex: petrogenesis and tectonic models / Geological Society, London, Special Publications, 27:45-56, doi:10.1144/GSL.SP.1987.027.01.05 --- H. R. Rollinson and M. B. Fowler: The magmatic evolution of the Scourian complex at Gruinard Bay / Geological Society, London, Special Publications, 27:57-71, doi:10.1144/GSL.SP.1987.027.01.06 --- A. C. Barnicoat: The causes of the high-grade metamorphism of the Scourie complex, NW Scotland / Geological Society, London, Special Publications, 27:73-79, doi:10.1144/GSL.SP.1987.027.01.07 --- J. D. Sills and H. R. Rollinson: Metamorphic evolution of the mainland Lewisian complex / Geological Society, London, Special Publications, 27:81-92, doi:10.1144/GSL.SP.1987.027.01.08 --- I. Cartwright and A. C. Barnicoat: Petrology of Scourian supracrustal rocks and orthogneisses from Stoer, NW Scotland: implications for the geological evolution of the Lewisian complex / Geological Society, London, Special Publications, 27:93-107, doi:10.1144/GSL.SP.1987.027.01.09 --- N. M. S. Rock, A. E. Davis, D. Hutchison, M. Joseph, and T. K. Smith: The geochemistry of Lewisian marbles / Geological Society, London, Special Publications, 27:109-126, doi:10.1144/GSL.SP.1987.027.01.10 --- M. P. Coward and R. G. Park: The role of mid-crustal shear zones in the Early Proterozoic evolution of the Lewisian / Geological Society, London, Special Publications, 27:127-138, doi:10.1144/GSL.SP.1987.027.01.11 --- R. G. Park, A. Crane, and M. Niamatullah: Early Proterozoic structure and kinematic evolution of the southern mainland Lewisian / Geological Society, London, Special Publications, 27:139-151, doi:10.1144/GSL.SP.1987.027.01.12 --- J. Wheeler, B. F. Windley, and F. B. Davies: Internal evolution of the major Precambrian shear belt at Torridon, NW Scotland / Geological Society, London, Special Publications, 27:153-163, doi:10.1144/GSL.SP.1987.027.01.13 --- P. Attfield: The structural history of the Canisp Shear Zone / Geological Society, London, Special Publications, 27:165-173, doi:10.1144/GSL.SP.1987.027.01.14 --- S. H. White and J. Glasser: The Outer Hebrides Fault Zone: evidence for normal movements / Geological Society, London, Special Publications, 27:175-183, doi:10.1144/GSL.SP.1987.027.01.15 --- J. Hall: Physical properties of Lewisian rocks: implications for deep crustal structure / Geological Society, London, Special Publications, 27:185-192, doi:10.1144/GSL.SP.1987.027.01.16 --- D. K. Smythe: Deep seismic reflection profiling of the Lewisian foreland / Geological Society, London, Special Publications, 27:193-203, doi:10.1144/GSL.SP.1987.027.01.17 --- J. D. A. Piper: The palaeomagnetic record in the Lewisian terrain / Geological Society, London, Special Publications, 27:205-215, doi:10.1144/GSL.SP.1987.027.01.18 --- J. Tarney and B. L. Weaver: Mineralogy, petrology and geochemistry of the Scourie dykes: petrogenesis and crystallization processes in dykes intruded at depth / Geological Society, London, Special Publications, 27:217-233, doi:10.1144/GSL.SP.1987.027.01.19 --- J. S. Myers: The East Greenland Nagssugtoqidian mobile belt compared with the Lewisian complex / Geological Society, London, Special Publications, 27:235-246, doi:10.1144/GSL.SP.1987.027.01.20 --- J. Korstgård, B. Ryan, and R. Wardle: The boundary between Proterozoic and Archaean crustal blocks in central West Greenland and northern Labrador / Geological Society, London, Special Publications, 27:247-259, doi:10.1144/GSL.SP.1987.027.01.21 --- R. P. Hall, D. J. Hughes, and C. R. L. Friend: Mid-Archaean basic magmatism of southern West Greenland / Geological Society, London, Special Publications, 27:261-275, doi:10.1144/GSL.SP.1987.027.01.22 --- J. S. Myers: High-grade terrains in and around the Yilgarn Block of Western Australia / Geological Society, London, Special Publications, 27:277-284, doi:10.1144/GSL.SP.1987.027.01.23 --- S. L. Harley and L. P. Black: The Archaean geological evolution of Enderby Land, Antarctica / Geological Society, London, Special Publications, 27:285-296, doi:10.1144/GSL.SP.1987.027.01.24 --- J. D. Sills, K. Wang, Y. Yan, and B. F. Windley: The Archaean high grade gneiss terrain in E Hebei Province, NE China: geological framework and conditions of metamorphism / Geological Society, London, Special Publications, 27:297-305, doi:10.1144/GSL.SP.1987.027.01.25

Description / Table of Contents: A. J. Fleet and J. Brooks: Introduction / Geological Society, London, Special Publications, 26:1-14, doi:10.1144/GSL.SP.1987.026.01.01 --- Part I: Concepts and Methods --- J. Brooks, C. Cornford, and R. Archer: The role of hydrocarbon source rocks in petroleum exploration / Geological Society, London, Special Publications, 26:17-46, doi:10.1144/GSL.SP.1987.026.01.02 --- R. V. Tyson: The genesis and palynofacies characteristics of marine petroleum source rocks / Geological Society, London, Special Publications, 26:47-67, doi:10.1144/GSL.SP.1987.026.01.03 --- I. St. J. Fisher and J. D. Hudson: Pyrite formation in Jurassic shales of contrasting biofacies / Geological Society, London, Special Publications, 26:69-78, doi:10.1144/GSL.SP.1987.026.01.04 --- S. C. Brassell, G. Eglinton, and V. J. Howell: Palaeoenvironmental assessment of marine organic-rich sediments using molecular organic geochemistry / Geological Society, London, Special Publications, 26:79-98, doi:10.1144/GSL.SP.1987.026.01.05 --- P. A. Comet and G. Eglinton: The use of lipids as facies indicators / Geological Society, London, Special Publications, 26:99-117, doi:10.1144/GSL.SP.1987.026.01.06 --- Part II: Depositional Processes and Environments --- E. T. Degens and V. Ittekkot: The carbon cycle—tracking the path of organic particles from sea to sediment / Geological Society, London, Special Publications, 26:121-135, doi:10.1144/GSL.SP.1987.026.01.07 --- S. E. Calvert: Oceanographic controls on the accumulation of organic matter in marine sediments / Geological Society, London, Special Publications, 26:137-151, doi:10.1144/GSL.SP.1987.026.01.08 --- R. J. Morris: The formation of organic-rich deposits in two deep-water marine environments / Geological Society, London, Special Publications, 26:153-166, doi:10.1144/GSL.SP.1987.026.01.09 --- R. Pelet: A model of organic sedimentation on present-day continental margins / Geological Society, London, Special Publications, 26:167-180, doi:10.1144/GSL.SP.1987.026.01.10 --- E. Suess, L. D. Kulm, and J. S. Killingley: Coastal upwelling and a history of organic-rich mudstone deposition off Peru / Geological Society, London, Special Publications, 26:181-197, doi:10.1144/GSL.SP.1987.026.01.11 --- J. T. Parrish: Palaeo-upwelling and the distribution of organic-rich rocks / Geological Society, London, Special Publications, 26:199-205, doi:10.1144/GSL.SP.1987.026.01.12 --- J. Ferguson: The significance of carbonate ooids in petroleum source-rock studies / Geological Society, London, Special Publications, 26:207-215, doi:10.1144/GSL.SP.1987.026.01.13 --- B. R. T. Simoneit and O. E. Kawka: Hydrothermal petroleum from diatomites in the Gulf of California / Geological Society, London, Special Publications, 26:217-228, doi:10.1144/GSL.SP.1987.026.01.14 --- Part III: The Stratigraphic Record --- A. Thickpenny and J. K. Leggett: Stratigraphic distribution and palaeo-oceanographic significance of European early Palaeozoic organic-rich sediments / Geological Society, London, Special Publications, 26:231-247, doi:10.1144/GSL.SP.1987.026.01.15 --- M. J. Gibbons: The depositional environment and petroleum geochemistry of the Marl Slate-Kupferschiefer / Geological Society, London, Special Publications, 26:249, doi:10.1144/GSL.SP.1987.026.01.16 --- A. Hallam: Mesozoic marine organic-rich shales / Geological Society, London, Special Publications, 26:251-261, doi:10.1144/GSL.SP.1987.026.01.17 --- R. Stoneley: A review of petroleum source rocks in parts of the Middle East / Geological Society, London, Special Publications, 26:263-269, doi:10.1144/GSL.SP.1987.026.01.18 --- H. B. Zimmerman, A. Boersma, and F. W. McCoy: Carbonaceous sediments and palaeoenvironment of the Cretaceous South Atlantic Ocean / Geological Society, London, Special Publications, 26:271-286, doi:10.1144/GSL.SP.1987.026.01.19 --- D. A. V. Stow: South Atlantic organic-rich sediments: facies, processes and environments of deposition / Geological Society, London, Special Publications, 26:287-299, doi:10.1144/GSL.SP.1987.026.01.20 --- C. P. Summerhayes: Organic-rich Cretaceous sediments from the North Atlantic / Geological Society, London, Special Publications, 26:301-316, doi:10.1144/GSL.SP.1987.026.01.21 --- P. C. de Graciansky, E. Brosse, G. Deroo, J.-P. Herbin, C. Müller, J. Sigal, A. Schaaf, and L. Montadert: Organic-rich sediments and palaeoenvironmental reconstructions of the Cretaceous North Atlantic / Geological Society, London, Special Publications, 26:317-344, doi:10.1144/GSL.SP.1987.026.01.22 --- T. J. Bralower and H. R. Thierstein: Organic carbon and metal accumulation rates in Holocene and mid-Cretaceous sediments: palaeoceanographic significance / Geological Society, London, Special Publications, 26:345-369, doi:10.1144/GSL.SP.1987.026.01.23 --- S. O. Schlanger, M. A. Arthur, H. C. Jenkyns, and P. A. Scholle: The Cenomanian-Turonian Oceanic Anoxic Event, I. Stratigraphy and distribution of organic carbon-rich beds and the marine δ13C excursion / Geological Society, London, Special Publications, 26:371-399, doi:10.1144/GSL.SP.1987.026.01.24 --- M. A. Arthur, S. O. Schlanger, and H. C. Jenkyns: The Cenomanian-Turonian Oceanic Anoxic Event, II. Palaeoceanographic controls on organic-matter production and preservation / Geological Society, London, Special Publications, 26:401-420, doi:10.1144/GSL.SP.1987.026.01.25 --- B. M. Funnell: Anoxic non-events; alternative explanations / Geological Society, London, Special Publications, 26:421-422, doi:10.1144/GSL.SP.1987.026.01.26 --- N. J. Shackleton: The carbon isotope record of the Cenozoic: history of organic carbon burial and of oxygen in the ocean and atmosphere / Geological Society, London, Special Publications, 26:423-434, doi:10.1144/GSL.SP.1987.026.01.27

Description / Table of Contents: INTRODUCTION Evaporites may form in a spectrum of environments from continental sabkha (playa) to deep basins (see Kendall 1978 a, b, Schreiber 1978, 1986, Friedman and Krumbein 1985, for review). In the last two decades, many ancient evaporite basins have been interpreted using the sabkha model and the deep desiccated basin model, the former not excluding the latter. However, growing evidence has been gathered indicating that most evaporites are formed in subaqueous environments, so that it cannot be reasonably expected that one depositional model alone will explain the entire basin fill. The chapters in this volume discuss characteristic examples of evaporite basins, mostly of moderate size. Aspects of a saline giant, the Zechstein basin of Central and NW Europe, have been considered in Volume 10 of "Lecture Notes in Earth Sciences"...

Description / Table of Contents: OPENING ADDRESS On behalf of the Local Organizing Committee, I welcome you all to the first International Workshop on GPS-techniques in surveying and geodesy held at this university. This workshop is designed to bring together experts from various countries and also scientists who carry out, analyze and interpret such measurements with those who work on instrumental and theoretical problems. The workshop focuses hereby on high-precision applications with emphasis on monitoring time-dependent phenomena such as those relevant to geodynamics as well as men-made constructions as those in civil engineering and similar fields. It is astonishing to see how, in spite of all earlier satellite work over the last two decades, GPS-methods became so fast a relevant new technology, in its proper sense, in modern geodesy and surveying besides VLBI and Satellite Laser Ranging (SLR). With the recent development of new dual-frequency receivers the role of GPS-procedures in monitoring large-scale phenomena over big distances will still expand; and the application of kinematical GPS-approaches is of utmost interest in solving high-precision problems. It is indeed fascinating to realize how GPS-methods have become in such a short time a surprisingly efficient and effective, this means : fast, precise and easy to apply, tool which is able to replace already now, after a few years of existence and with an incomplete set of a few out of the 18 satellites (of the final stage), at least partially some expensive, slow and cumbersome classical surveying methods. On the other hand, it cannot be overemphasized that GPS-procedures are still at their beginning and the full spectrum of their capabilities still has to be explored. In Europe, for example, where excellent classical surveying systems do exist the situation is quite different from the situation in other countries such as Canada or the USA. Even within Europe the application types of GPS-methods will vary; for example, in Norway the situation is quite different from central European countries. It is often forgotten, that together with GPS we will have to introduce new concepts and a new thinking in combination with other modern satellite procedures. GPS itself can resolve only a small part of the problems to be solved by modern geodesy but it will open the way to a great variety of new applications and capabilities. Modern global tectonics is just one of the new disciplines of high interest and great practical impact. I could continue in citing other similarly important new fields. GPS is, however, of special importance because it replaces old technologies and fills gaps where modern and efficient tools are most needed. Consequently, also the optimal combination of GPS-methods with new auxiliary and also classical high-precision techniques is of great importance, mainly under the european conditions outlined above. Moreover, the real-time or almost-real-time use of GPS in combination with photogrammetry, inertial geodesy, gravity gradiometry or even classical surveying is of substantial interest. It is indeed important to realize the new concepts in modern satellite and space methods and I, therefore, spoke above of a new "technology" which should be optimally developed as there is a worldwide need of such capabilities and tools. In view of the few active NAVSTAR-satellites in sky in 1988 this is perhaps not the best year for GPS-applications but the right time for a review of the experience gained until now and using it as a base for the planning of the future...

Description / Table of Contents: INTRODUCTION The awareness that mankind is able to influence and modify not only the local but also the global climate has led to a strongly growing interest in climate research. Strengthened research activities, which also made use of improved and novel experimental techniques, have yielded a wealth of information on climatic patterns in the past. At the same time, climate modelling has made much progress. While some questions have been answered, new problems have been recognized. One question related to anthropogenio climatic change is about the nature and causes of natural variations, against the background of which man-made changes must be viewed. The contributions to this volume all deal with the variabilitY of climate. Some papers are reviews of the knowledge to a current topic, others have more the character of an original contribution. The obseryational studies cover the range from year-to-year variations up to glacial-interglacial contrast, thereby going from instrumental data to results from proxy records...

Description / Table of Contents: PREFACE It is to-day generally recognized by environmental scientists that the particular behaviour of trace metals in the environment is determined by their specific physico-chemical forms rather than by their total concentration. With the introduction, several years ago, of atomic absorption spectrometry at many laboratories involved in environmental studies, a technique for simple, rapid and cheap determination of total metal concentrations in environmental samples became available. As a consequence, there is a plethora of scientific papers and reports where metal concentrations in the environment are only reported as total concentrations. It appears that the simplicity of making accurate determinations of total metal contents in water, sediment and biological samples has somewhat masked the need for improved knowledge about the various forms of metals occurring in the environment as well as the bioavailahility of these forms. In other words, the need for metal speciation in studies of metals in the environment does not seem to have become obvious to most environmental scientists until relatively recently. As a matter of fact, it was only in the middle of the 1970s that the first systematic attempts were made to obtain information about the various metal species occurring in environmental samples. During the last ten years, however, a revolutionary change of attitude towards the importance of metal speciation has occurred and considerable research effort has been devoted by environmental scientists to measuring the concentrations of biologically important trace metals in surface waters. There is currently an increasing effort to couple the development of chemical analytical techniques to process-related biological problems. Concurrently, a new focus is being imposed on ecological impact studies, that of determining which active trace metal species merit the most intensive research from the standpoint of environmental perturbation. Current efforts are directed towards the development of chemical speciation schemes which can be related directly to measures of bioavailability...

Description / Table of Contents: Papers originally presented at the Workshop on Numerical Modelling of Marine Systems, held at the University of Adelaide, Feb. 5-7, 1986

Description / Table of Contents: The problems treated in this volume concern nonlinear partial differential equations occurring in the areas of fluid dynamics, free boundary problems, population dynamics and mathematical physics. Presented are new results and new methods for analysis in bifurcation, singular perturbation, variational methods, stability analysis, rearrangement, energy inequalities, etc

Description / Table of Contents: L. M. Parson and A. C. Morton: Introduction / Geological Society, London, Special Publications, 39:ix-xii, doi:10.1144/GSL.SP.1988.039.01.01: Volcanic and Tectonic Framework --- R. S. White: A hot-spot model for early Tertiary volcanism in the N Atlantic / Geological Society, London, Special Publications, 39:3-13, doi:10.1144/GSL.SP.1988.039.01.02 --- M. H. P. Bott: A new look at the causes and consequences of the Icelandic hot-spot / Geological Society, London, Special Publications, 39:15-23, doi:10.1144/GSL.SP.1988.039.01.03 --- J. F. Dewey and B. F. Windley: Palaeocene-Oligocene tectonics of NW Europe / Geological Society, London, Special Publications, 39:25-31, doi:10.1144/GSL.SP.1988.039.01.04 --- Dipping Reflectors and NE Atlantic Evolution --- J. C. Mutter and C. M. Zehnder: Deep crustal structure and magmatic processes: the inception of seafloor spreading in the Norwegian-Greenland Sea / Geological Society, London, Special Publications, 39:35-48, doi:10.1144/GSL.SP.1988.039.01.05 --- J. Skogseid and O. Eldholm: Early Cainozoic evolution of the Norwegian volcanic passive margin and the formation of marginal highs / Geological Society, London, Special Publications, 39:49-56, doi:10.1144/GSL.SP.1988.039.01.06 --- L. M. Parson and the ODP Leg 104 Scientific Party: Dipping reflector styles in the NE Atlantic Ocean / Geological Society, London, Special Publications, 39:57-68, doi:10.1144/GSL.SP.1988.039.01.07 --- L. G. Viereck, P. N. Taylor, L. M. Parson, A. C. Morton, J. Hertogen, I. L. Gibson, and the ODP Leg 104 Scientific Party: Origin of the Palaeogene Vøring Plateau volcanic sequence / Geological Society, London, Special Publications, 39:69-83, doi:10.1144/GSL.SP.1988.039.01.08 --- S. T. Gudlaugsson, K. Gunnarsson, M. Sand, and J. Skogseid: Tectonic and volcanic events at the Jan Mayen Ridge microcontinent / Geological Society, London, Special Publications, 39:85-93, doi:10.1144/GSL.SP.1988.039.01.09 --- H. C. Larsen and S. Jakobsdóttir: Distribution, crustal properties and significance of seawards-dipping sub-basement reflectors off E Greenland / Geological Society, London, Special Publications, 39:95-114, doi:10.1144/GSL.SP.1988.039.01.10 --- M. S. Andersen: Late Cretaceous and early Tertiary extension and volcanism around the Faeroe Islands / Geological Society, London, Special Publications, 39:115-122, doi:10.1144/GSL.SP.1988.039.01.11 --- R. J. Merriman, P. N. Taylor, and A. C. Morton: Petrochemistry and isotope geochemistry of early Palaeogene basalts forming the dipping reflector sequence SW of Rockall Plateau, NE Atlantic / Geological Society, London, Special Publications, 39:123-134, doi:10.1144/GSL.SP.1988.039.01.12 --- J. I. Faleide, A. M. Myhre, and O. Eldholm: Early Tertiary volcanism at the western Barents Sea margin / Geological Society, London, Special Publications, 39:135-146, doi:10.1144/GSL.SP.1988.039.01.13 --- L. Kristjansson and J. Helgason: Some properties of basalt lava sequences and volcanic centres in a plate-boundary environment / Geological Society, London, Special Publications, 39:147-155, doi:10.1144/GSL.SP.1988.039.01.14 --- H. C. Larsen: A multiple and propagating rift model for the NE Atlantic / Geological Society, London, Special Publications, 39:157-158, doi:10.1144/GSL.SP.1988.039.01.15 --- E Greenland and the Faeroe Islands --- R. C. O. Gill, T. F. D. Nielsen, C. K. Brooks, and G. A. Ingram: Tertiary volcanism in the Kangerdlugssuaq region, E Greenland: trace-element geochemistry of the Lower Basalts and tholeiitic dyke swarms / Geological Society, London, Special Publications, 39:161-179, doi:10.1144/GSL.SP.1988.039.01.16 --- P. M. Holm: Nd, Sr and Pb isotope geochemistry of the Lower Lavas, E Greenland Tertiary Igneous Province / Geological Society, London, Special Publications, 39:181-195, doi:10.1144/GSL.SP.1988.039.01.17 --- A. J. C. Hogg, J. J. Fawcett, J. Gittins, and M. P. Gorton: Cyclical tholeiitic volcanism and associated magma chambers: eruptive mechanisms in E Greenland / Geological Society, London, Special Publications, 39:197-200, doi:10.1144/GSL.SP.1988.039.01.18 --- R. H. Noble, R. M. Macintyre, and P. E. Brown: Age constraints on Atlantic evolution: timing of magmatic activity along the E Greenland continental margin / Geological Society, London, Special Publications, 39:201-214, doi:10.1144/GSL.SP.1988.039.01.19 --- D. H. Tarling, E. A. Hailwood, and R. Løvlie: A palaeomagnetic study of lower Tertiary lavas in E Greenland and comparison with other lower Tertiary observations in the northern Atlantic / Geological Society, London, Special Publications, 39:215-224, doi:10.1144/GSL.SP.1988.039.01.20 --- R. Waagstein: Structure, composition and age of the Faeroe basalt plateau / Geological Society, London, Special Publications, 39:225-238, doi:10.1144/GSL.SP.1988.039.01.21 --- Volcanism in Basins to the N and W of the British Isles --- F. G. F. Gibb and R. Kanaris-Sotiriou: The geochemistry and origin of the Faeroe-Shetland sill complex / Geological Society, London, Special Publications, 39:241-252, doi:10.1144/GSL.SP.1988.039.01.22 --- F. J. Fitch, G. L. Heard, and J. A. Miller: Basaltic magmatism of late Cretaceous and Palaeogene age recorded in wells NNE of the Shetlands / Geological Society, London, Special Publications, 39:253-262, doi:10.1144/GSL.SP.1988.039.01.23 --- A. C. Morton, D. Evans, R. Harland, C. King, and D. K. Ritchie: Volcanic ash in a cored borehole W of the Shetland Islands: evidence for Selandian (late Palaeocene) volcanism in the Faeroes region / Geological Society, London, Special Publications, 39:263-269, doi:10.1144/GSL.SP.1988.039.01.24 --- M. S. Stoker, A. C. Morton, D. Evans, M. J. Hughes, R. Harland, and D. K. Graham: Early Tertiary basalts and tuffaceous sandstones from the Hebrides Shelf and Wyville-Thomson Ridge, NE Atlantic / Geological Society, London, Special Publications, 39:271-282, doi:10.1144/GSL.SP.1988.039.01.25 --- M. V. Wood, J. Hall, and J. J. Doody: Distribution of early Tertiary lavas in the NE Rockall Trough / Geological Society, London, Special Publications, 39:283-292, doi:10.1144/GSL.SP.1988.039.01.26 --- A. C. Morton, J. E. Dixon, J. G. Fitton, R. M. Macintyre, D. K. Smythe, and P. N. Taylor: Early Tertiary volcanic rocks in Well 163/6-1A, Rockall Trough / Geological Society, London, Special Publications, 39:293-308, doi:10.1144/GSL.SP.1988.039.01.27 --- M. P. Tate and M. R. Dobson: Syn- and post-rift igneous activity in the Porcupine Seabight Basin and adjacent continental margin W of Ireland / Geological Society, London, Special Publications, 39:309-334, doi:10.1144/GSL.SP.1988.039.01.28 --- British Tertiary Igneous Province --- A. E. Mussett, P. Dagley, and R. R. Skelhorn: Time and duration of activity in the British Tertiary Igneous Province / Geological Society, London, Special Publications, 39:337-348, doi:10.1144/GSL.SP.1988.039.01.29 --- I. G. Meighan, A. G. McCormick, D. Gibson, J. A. Gamble, and I. J. Graham: Rb-Sr isotopic determinations and the timing of Tertiary central complex magmatism in NE Ireland / Geological Society, London, Special Publications, 39:349-360, doi:10.1144/GSL.SP.1988.039.01.30 --- P. J. O’Connor: Strontium isotope geochemistry of Tertiary igneous rocks, NE Ireland / Geological Society, London, Special Publications, 39:361-363, doi:10.1144/GSL.SP.1988.039.01.31 --- B. R. Bell and C. H. Emeleus: A review of silicic pyroclastic rocks of the British Tertiary Volcanic Province / Geological Society, London, Special Publications, 39:365-379, doi:10.1144/GSL.SP.1988.039.01.32 --- R. W. England: The early Tertiary stress regime in NW Britain: evidence from the patterns of volcanic activity / Geological Society, London, Special Publications, 39:381-389, doi:10.1144/GSL.SP.1988.039.01.33 --- J. H. Bédard, R. S. J. Sparks, R. Renner, R. Hunter, and M. Cheadle: A re-evaluation of the origin and nature of layered peridotite, troctolite and gabbro in the Eastern Layered Series of the Rhum ultrabasic complex, Inner Hebrides / Geological Society, London, Special Publications, 39:391, doi:10.1144/GSL.SP.1988.039.01.34: The North Sea Sedimentary Record --- O. B. Nielsen and C. Heilmann-Clausen: Palaeogene volcanism: the sedimentary record in Denmark / Geological Society, London, Special Publications, 39:395-405, doi:10.1144/GSL.SP.1988.039.01.35 --- R. W. O’B. Knox and A. C. Morton: The record of early Tertiary N Atlantic volcanism in sediments of the North Sea Basin / Geological Society, London, Special Publications, 39:407-419, doi:10.1144/GSL.SP.1988.039.01.36 --- A. Nøttvedt, L. T. Berglund, E. Rasmussen, and R. J. Steel: Some aspects of Tertiary tectonics and sedimentation along the western Barents Shelf / Geological Society, London, Special Publications, 39:421-425, doi:10.1144/GSL.SP.1988.039.01.37: Review of Igneous Activity --- B. G. J. Upton: History of Tertiary igneous activity in the N Atlantic borderlands / Geological Society, London, Special Publications, 39:429-453, doi:10.1144/GSL.SP.1988.039.01.38

Description / Table of Contents: Geophysics of the Caledonian-Appalachian Orogen --- R. T. Haworth, R. Hipkin, R. D. Jacobi, M. Kane, J. P. Lefort, M. D. Max, H. G. Miller, and F. Wolff: Geophysical framework and the Appalachian-Caledonide connection / Geological Society, London, Special Publications, 38:3-20, doi:10.1144/GSL.SP.1988.038.01.01 --- F. A. Cook, D. H. Matthews, and A. W. B. Jacob: Crustal and upper mantle structure of the Appalachian-Caledonide orogen from seismic results / Geological Society, London, Special Publications, 38:21-33, doi:10.1144/GSL.SP.1988.038.01.02 --- J. C. Briden, D. V. Kent, P. L. Lapointe, J. L. Roy, R. A. Livermore, A. G. Smith, M. K. Seguin, R. Van der Voo, and D. R. Watts: Palaeomagnetic constraints on the evolution of the Caledonian-Appalachian orogen / Geological Society, London, Special Publications, 38:35-48, doi:10.1144/GSL.SP.1988.038.01.03 --- J. P. Lefort, M. D. Max, and J. Roussel: Geophysical evidence for the location of the NW boundary of Gondwanaland and its relationship with two older satellite sutures / Geological Society, London, Special Publications, 38:49-60, doi:10.1144/GSL.SP.1988.038.01.04 --- Pre-Arenig Activity in the Caledonian-Appalachian Orogen --- Derek Powell, T. B. Andersen, A. A. Drake, Jr, Leo Hall, and J. D. Keppie: The age and distribution of basement rocks in the Caledonide orogen of the N Atlantic / Geological Society, London, Special Publications, 38:63-74, doi:10.1144/GSL.SP.1988.038.01.05 --- Frederic L. Schwab, Johan P. Nystuen, and Linda Gunderson: Pre-Arenig evolution of the Appalachian-Caledonide orogen: sedimentation and stratigraphy / Geological Society, London, Special Publications, 38:75-91, doi:10.1144/GSL.SP.1988.038.01.06 --- S. Conway Morris and A. W. A. Rushton: Precambrian to Tremadoc biotas in the Caledonides / Geological Society, London, Special Publications, 38:93-109, doi:10.1144/GSL.SP.1988.038.01.07 --- Nicholas Rast, B. A. Sturt, and A. L. Harris: Early deformation in the Caledonian-Appalachian orogen / Geological Society, London, Special Publications, 38:111-122, doi:10.1144/GSL.SP.1988.038.01.08 --- Ben Harte: Lower Palaeozoic metamorphism in the Moine-Dalradian belt of the British Isles / Geological Society, London, Special Publications, 38:123-134, doi:10.1144/GSL.SP.1988.038.01.09 --- Inge Bryhni: Early Palaeozoic metamorphism in the Scandinavian Caledonides / Geological Society, London, Special Publications, 38:135-140, doi:10.1144/GSL.SP.1988.038.01.10 --- Jo Laird: Pre-Arenig metamorphism in the Appalachians / Geological Society, London, Special Publications, 38:141-147, doi:10.1144/GSL.SP.1988.038.01.11 --- D. W. Rankin, Harald Furnes, A. C. Bishop, B. Cabanis, D. J. Milton, S. J. O’Brien, and R. S. Thorpe: Plutonism and volcanism related to the pre-Arenig evolution of the Caledonide-Appalachian orogen / Geological Society, London, Special Publications, 38:149-183, doi:10.1144/GSL.SP.1988.038.01.12 --- James W. Skehan: Evolution of the Iapetus Ocean and its borders in pre-Arenig times: a synthesis / Geological Society, London, Special Publications, 38:185-229, doi:10.1144/GSL.SP.1988.038.01.13 --- Arenig-Wenlock Activity in the Caledonian-Appalachian Orogen --- R. A. Fortey and L. R. M. Cocks: Arenig to Llandovery faunal distributions in the Caledonides / Geological Society, London, Special Publications, 38:231-246, doi:10.1144/GSL.SP.1988.038.01.14 --- David L. Bruton and David A. T. Harper: Arenig-Llandovery stratigraphy and faunas across the Scandinavian Caledonides / Geological Society, London, Special Publications, 38:247-268, doi:10.1144/GSL.SP.1988.038.01.15 --- Robert B. Neuman: Palaeontological evidence bearing on the Arenig-Caradoc development of the Iapetus Ocean basin / Geological Society, London, Special Publications, 38:269-274, doi:10.1144/GSL.SP.1988.038.01.16 --- C. J. Stillman: Ordovician to Silurian volcanism in the Appalachian—Caledonian orogen / Geological Society, London, Special Publications, 38:275-290, doi:10.1144/GSL.SP.1988.038.01.17 --- Leo M. Hall and David Roberts: Timing of Ordovician deformation in the Caledonian-Appalachian orogen / Geological Society, London, Special Publications, 38:291-309, doi:10.1144/GSL.SP.1988.038.01.18 --- Jo Laird: Arenig to Wenlock age metamorphism in the Appalachians / Geological Society, London, Special Publications, 38:311-345, doi:10.1144/GSL.SP.1988.038.01.19 --- G. J. H. Oliver: Arenig to Wenlock regional metamorphism in the Paratectonic Caledonides of the British Isles: a review / Geological Society, London, Special Publications, 38:347-363, doi:10.1144/GSL.SP.1988.038.01.20 --- R. D. Dallmeyer: Polyphase tectonothermal evolution of the Scandinavian Caledonides / Geological Society, London, Special Publications, 38:365-379, doi:10.1144/GSL.SP.1988.038.01.21 --- David R. Wones and A. K. Sinha: A brief review of early Ordovician to Devonian plutonism in the N American Caledonides / Geological Society, London, Special Publications, 38:381-388, doi:10.1144/GSL.SP.1988.038.01.22 --- W. E. Stephens: Granitoid plutonism in the Caledonian orogen of Europe / Geological Society, London, Special Publications, 38:389-403, doi:10.1144/GSL.SP.1988.038.01.23 --- W. S. McKerrow: The development of the Iapetus Ocean from the Arenig to the Wenlock / Geological Society, London, Special Publications, 38:405-412, doi:10.1144/GSL.SP.1988.038.01.24 --- Wenlock to Mid-Devonian Activity in the Caledonian-Appalachian Orogen --- M. F. Thirlwall: Wenlock to mid-Devonian volcanism of the Caledonian-Appalachian orogen / Geological Society, London, Special Publications, 38:415-428, doi:10.1144/GSL.SP.1988.038.01.25 --- David Roberts: Timing of Silurian to middle Devonian deformation in the Caledonides of Scandinavia, Svalbard and E Greenland / Geological Society, London, Special Publications, 38:429-435, doi:10.1144/GSL.SP.1988.038.01.26 --- W.S. McKerrow: Wenlock to Givetian deformation in the British Isles and the Canadian Appalachians / Geological Society, London, Special Publications, 38:437-448, doi:10.1144/GSL.SP.1988.038.01.27 --- P. H. Osberg: Silurian to Lower Carboniferous tectonism in the Appalachians of the USA / Geological Society, London, Special Publications, 38:449-452, doi:10.1144/GSL.SP.1988.038.01.28 --- Peter Robinson, R. J. Tracy, D. S. Santallier, P.-G. Andreasson, and J. I. Gil-Ibarguchi: Scandian-Acadian-Caledonian sensu strictu metamorphism in the age range 430–360 Ma / Geological Society, London, Special Publications, 38:453-467, doi:10.1144/GSL.SP.1988.038.01.29 --- D. V. Kent and J. D. Keppie: Silurian-Permian palaeocontinental reconstructions and circum-Atlantic tectonics / Geological Society, London, Special Publications, 38:469-480, doi:10.1144/GSL.SP.1988.038.01.30 --- N. J. Soper: Timing and geometry of collision, terrane accretion and sinistral strike-slip events in the British Caledonides / Geological Society, London, Special Publications, 38:481-492, doi:10.1144/GSL.SP.1988.038.01.31 --- J. Chaloupský: Caledonian folding in the Bohemian Massif / Geological Society, London, Special Publications, 38:493-498, doi:10.1144/GSL.SP.1988.038.01.32 --- Robert D. Hatcher, Jr: The third synthesis: Wenlock to mid-Devonian (end of Acadian orogeny) / Geological Society, London, Special Publications, 38:499-504, doi:10.1144/GSL.SP.1988.038.01.33 --- Mid-Devonian-Permian Activity in the Caledonian-Appalachian Orogen --- Robert D. Hatcher, Jr: Basement-cover relationships in the Appalachian-Caledonian-Variscan orogen: mid-Devonian (end of Acadian orogeny) to end of Permian / Geological Society, London, Special Publications, 38:507-514, doi:10.1144/GSL.SP.1988.038.01.34 --- William A. Thomas and Paul E. Schenk: Late Palaeozoic sedimentation along the Appalachian orogen / Geological Society, London, Special Publications, 38:515-530, doi:10.1144/GSL.SP.1988.038.01.35 --- K. C. Allen and D. L. Dineley: Mid-Devonian to mid-Permian floral and faunal regions and provinces / Geological Society, London, Special Publications, 38:531-548, doi:10.1144/GSL.SP.1988.038.01.36 --- Michael Robert Leeder: Devono-Carboniferous river systems and sediment dispersal from the orogenic belts and cratons of NW Europe / Geological Society, London, Special Publications, 38:549-558, doi:10.1144/GSL.SP.1988.038.01.37 --- O. Don Hermes and Daniel P. Murray: Middle Devonian to Permian plutonism and volcanism in the N American Appalachians / Geological Society, London, Special Publications, 38:559-571, doi:10.1144/GSL.SP.1988.038.01.38 --- E. H. Francis: Mid-Devonian to early Permian volcanism: Old World / Geological Society, London, Special Publications, 38:573-584, doi:10.1144/GSL.SP.1988.038.01.39 --- Nicholas Rast: Tectonic implications of the timing of the Variscan orogeny / Geological Society, London, Special Publications, 38:585-595, doi:10.1144/GSL.SP.1988.038.01.40 --- Daniel P. Murray: Post-Acadian metamorphism in the Appalachians / Geological Society, London, Special Publications, 38:597-609, doi:10.1144/GSL.SP.1988.038.01.41 --- Francisco J. Martínez and Joël Rolet: Late Palaeozoic metamorphism in the northwestern Iberian Peninsula, Brittany and related areas in SW Europe / Geological Society, London, Special Publications, 38:611-620, doi:10.1144/GSL.SP.1988.038.01.42 --- John Rodgers: Fourth time-slice: mid-Devonian to Permian synthesis / Geological Society, London, Special Publications, 38:621-626, doi:10.1144/GSL.SP.1988.038.01.43

Description / Table of Contents: J. C. Goff and B. P. J. Williams: Introduction / Geological Society, London, Special Publications, 34:NP, doi:10.1144/GSL.SP.1987.034.01.01 --- Section 1: Fluid Flow in Compacting Basins --- Richard E. Chapman: Fluid flow in sedimentary basins: a geologist’s perspective / Geological Society, London, Special Publications, 34:3-18, doi:10.1144/GSL.SP.1987.034.01.02 --- Kinji Magara: Fluid flow due to sediment loading—an application to the Arabian Gulf region / Geological Society, London, Special Publications, 34:19-28, doi:10.1144/GSL.SP.1987.034.01.03 --- Section 2: Fluid Flow in the Western Canadian Sedimentary Basin --- Brian Hitchon, S. Bachu, C. M. Sauveplane, and A. T. Lytviak: Dynamic basin analysis: an integrated approach with large data bases / Geological Society, London, Special Publications, 34:31-44, doi:10.1144/GSL.SP.1987.034.01.04 --- J. Tóth and T. Corbet: Post-Palaeocene evolution of regional groundwater flow systems and their relation to petroleum accumulations, Taber Area, southern Alberta, Canada / Geological Society, London, Special Publications, 34:45-77, doi:10.1144/GSL.SP.1987.034.01.05 --- F. W. Jones and J. A. Majorowicz: Some aspects of the thermal regime and hydrodynamics of the western Canadian sedimentary basin / Geological Society, London, Special Publications, 34:79-85, doi:10.1144/GSL.SP.1987.034.01.06 --- Harry J. Bradbury and Grant R. Woodwell: Ancient fluid flow within foreland terrains / Geological Society, London, Special Publications, 34:87-102, doi:10.1144/GSL.SP.1987.034.01.07 --- Section 3: Fluid Flow in United Kingdom Groundwater Basins --- R. A. Downing, W. M. Edmunds, and I. N. Gale: Regional groundwater flow in sedimentary basins in the U.K. / Geological Society, London, Special Publications, 34:105-125, doi:10.1144/GSL.SP.1987.034.01.08 --- A. H. Bath, A. E. Milodowski, and G. E. Strong: Fluid flow and diagenesis in the East Midlands Triassic sandstone aquifer / Geological Society, London, Special Publications, 34:127-140, doi:10.1144/GSL.SP.1987.034.01.09 --- Michael Price: Fluid flow in the Chalk of England / Geological Society, London, Special Publications, 34:141-156, doi:10.1144/GSL.SP.1987.034.01.10 --- N. P. Wilson and M. N. Luheshi: Thermal aspects of the East Midlands aquifer system / Geological Society, London, Special Publications, 34:157-169, doi:10.1144/GSL.SP.1987.034.01.11 --- Section 4: Fluid Flow in Low Permeability and Fractured Media --- J. Alexander, J. H. Black, and M. A. Brightman: The role of low-permeability rocks in regional flow / Geological Society, London, Special Publications, 34:173-183, doi:10.1144/GSL.SP.1987.034.01.12 --- J. H. Black: Flow and flow mechanisms in crystalline rock / Geological Society, London, Special Publications, 34:185-200, doi:10.1144/GSL.SP.1987.034.01.13 --- David A. Brown: The flow of water and displacement of hydrocarbons in fractured chalk reservoirs / Geological Society, London, Special Publications, 34:201-218, doi:10.1144/GSL.SP.1987.034.01.14

Description / Table of Contents: Jim Marshall: Diagenesis and Sedimentary Sequences—Introduction / Geological Society, London, Special Publications, 36:v-vi, doi:10.1144/GSL.SP.1987.036.01.01: Diagenetic Processes --- Ian R. Goldsmith and Peter King: Hydrodynamic modelling of cementation patterns in modern reefs / Geological Society, London, Special Publications, 36:1-13, doi:10.1144/GSL.SP.1987.036.01.02 --- H. G. Machel: Some aspects of diagenetic sulphate-hydrocarbon redox reactions / Geological Society, London, Special Publications, 36:15-28, doi:10.1144/GSL.SP.1987.036.01.03 --- S. N. Palmer and M. E. Barton: Porosity reduction, microfabric and resultant lithification in UK uncemented sands / Geological Society, London, Special Publications, 36:29-40, doi:10.1144/GSL.SP.1987.036.01.04 --- R. Raiswell: Non-steady state microbiological diagenesis and the origin of concretions and nodular limestones / Geological Society, London, Special Publications, 36:41-54, doi:10.1144/GSL.SP.1987.036.01.05 --- E. A. Warren: The application of a solution-mineral equilibrium model to the diagenesis of Carboniferous sandstones, Bothamsall oilfield, East Midlands, England / Geological Society, London, Special Publications, 36:55-69, doi:10.1144/GSL.SP.1987.036.01.06 --- Early Diagenesis --- T. R. Astin: Petrology (including fluorescence microscopy) of cherts from the Portlandian of Wiltshire, UK—evidence of an episode of meteoric water circulation / Geological Society, London, Special Publications, 36:73-85, doi:10.1144/GSL.SP.1987.036.01.07 --- Greg A. Carson: Silicification fabrics from the Cenomanian and basal Turonian of Devon, England: isotopic results / Geological Society, London, Special Publications, 36:87-102, doi:10.1144/GSL.SP.1987.036.01.08 --- J. D. Kantorowicz, I. D. Bryant, and J. M. Dawans: Controls on the geometry and distribution of carbonate cements in Jurassic sandstones: Bridport Sands, southern England and Viking Group, Troll Field, Norway / Geological Society, London, Special Publications, 36:103-118, doi:10.1144/GSL.SP.1987.036.01.09 --- J. J. Pueyo Mur and M. Inglés Urpinell: Magnesite formation in recent playa lakes, Los Monegros, Spain / Geological Society, London, Special Publications, 36:119-122, doi:10.1144/GSL.SP.1987.036.01.10 --- C. Taberner and C. Santisteban: Mixed-water dolomitization in a transgressive beach-ridge system, Eocene Catalan Basin, NE Spain / Geological Society, London, Special Publications, 36:123-139, doi:10.1144/GSL.SP.1987.036.01.11 --- R. D. A. Smith: Early diagenetic phosphate cements in a turbidite basin / Geological Society, London, Special Publications, 36:141-156, doi:10.1144/GSL.SP.1987.036.01.12 --- Zhao Xun and Ian J. Fairchild: Mixing zone dolomitization of Devonian carbonates, Guangxi, South China / Geological Society, London, Special Publications, 36:157-170, doi:10.1144/GSL.SP.1987.036.01.13 --- Regional Studies and Burial Diagenesis --- A. H. Bath, A. E. Milodowski, and B. Spiro: Diagenesis of carbonate cements in Permo-Triassic sandstones in the Wessex and East Yorkshire-Lincolnshire Basins, UK: a stable isotope study / Geological Society, London, Special Publications, 36:173-190, doi:10.1144/GSL.SP.1987.036.01.14 --- J. R. Boles: Six million year diagenetic history, North Coles Levee, San Joaquin Basin, California / Geological Society, London, Special Publications, 36:191-200, doi:10.1144/GSL.SP.1987.036.01.15 --- D. Emery: Trace-element source and mobility during limestone burial diagenesis—an example from the Middle Jurassic of eastern England / Geological Society, London, Special Publications, 36:201-217, doi:10.1144/GSL.SP.1987.036.01.16 --- Lynton S. Land and R. Stephen Fisher: Wilcox sandstone diagenesis, Texas Gulf Coast: a regional isotopic comparison with the Frio Formation / Geological Society, London, Special Publications, 36:219-235, doi:10.1144/GSL.SP.1987.036.01.17 --- David C. Harris and William J. Meyers: Regional dolomitization of subtidal shelf carbonates: Burlington and Keokuk Formations (Mississippian), Iowa and Illinois / Geological Society, London, Special Publications, 36:237-258, doi:10.1144/GSL.SP.1987.036.01.18 --- J. D. Hudson and J. E. Andrews: The diagenesis of the Great Estuarine Group, Middle Jurassic, Inner Hebrides, Scotland / Geological Society, London, Special Publications, 36:259-276, doi:10.1144/GSL.SP.1987.036.01.19 --- Fred J. Longstaffe and Avner Ayalon: Oxygen-isotope studies of clastic diagenesis in the Lower Cretaceous Viking Formation, Alberta: implications for the role of meteoric water / Geological Society, London, Special Publications, 36:277-296, doi:10.1144/GSL.SP.1987.036.01.20 --- J. Parnell: Secondary porosity in hydrocarbon-bearing transgressive sandstones on an unstable Lower Palaeozoic continental shelf, Welsh Borderland / Geological Society, London, Special Publications, 36:297-312, doi:10.1144/GSL.SP.1987.036.01.21 --- G. C. Saigal and K. Bjørlykke: Carbonate cements in clastic reservoir rocks from offshore Norway—relationships between isotopic composition, textural development and burial depth / Geological Society, London, Special Publications, 36:313-324, doi:10.1144/GSL.SP.1987.036.01.22 --- G. E. Strong and A. E. Milodowski: Aspects of the diagenesis of the Sherwood Sandstones of the Wessex Basin and their influence on reservoir characteristics / Geological Society, London, Special Publications, 36:325-337, doi:10.1144/GSL.SP.1987.036.01.23 --- C. B. de Wet: Deposition and diagenesis in an extensional basin: the Corallian Formation (Jurassic) near Oxford, England / Geological Society, London, Special Publications, 36:339-353, doi:10.1144/GSL.SP.1987.036.01.24

Description / Table of Contents: PREFACE During the last few years, evaporites have increasingly been regarded as sediments and not only as chemical precipitates. Especially the intensive study of the Zechstein facies has resulted in a vast amount of observations and interpretations which are of general significance, offering important information to all sedimentologists interested in carbonates and evaporites. It seems therefore useful to introduce the sedimentological approach in a basin where various chemical concepts have been developed. This is the aim of the present volume, and this approach will be recognized by the reader in most of the chapters. The idea of publishing a collection of papers on the Zechstein facies and related rocks found an enthusiastic response, although later some contributors were, for various reasons, unable to meet the deadline. However, the papers submitted cover all major fields and will certainly stimulate further research...

Description / Table of Contents: PREFACE The suggestion to compile and publish this volume dealing with some geoscientific problems of the Central Andes came up during a conference on "Mobility of Active Continental Margins" held in Berlin, February 1986. At this international conference, organized by the Berlin Research Group "Mobility of Active Continental Margins", colleagues from Europe, Southern and Northern America reported on their current investigations in the Central Andes. The Central Andes claim a special position in the 7000 km long Andean mountain range. In Northern Chile, Southern Bolivia and Northwest Argentina the Central Andes show their largest width with more than 650 km and along a Geotraverse between the Pacific coast and the Chaco all typical Andean morphotectonic units are well developed. Here, the pre-Andean evolution is documented by outcropping of Paleozoic and pre-Cambrian rocks. The characteristic phenomena of the Andean cycle can be studied along the entire geotraverse. The migration of the tectonic and magmatic activity starting in Jurassic and being active t i l l Quaternary is clearly evidenced. Besides the Himalaya, the Central Andes show with 70-80 km and -400 mgal the largest crustal thickness known in mountain ranges. These and many other interesting and exciting geoscientific features encouraged a group of geoscientists from both West-Berlin universities (Freie UniversitAt and Technische UniversitAt) to focus their studies along a geotraverse through the Central Andes. The realization of these studies would not have been possible without the active assistance and close cooperation of our colleagues from the geoscientific institutions in Salta (Argentina), La Paz and Santa Cruz (Bolivia) and Antofagasta and Santiago (Chile). Concerning the German participation, this joint and interdisciplinary project is financially supported since 1982 as Reserach Group" Mobility of Active Continental Margins" by the German Research Society and by the West-Berlin universities as well. A number of colleagues from universities in West Germany take part in this project, too. The papers presented here deal with the period from Late Precambrian up to the youngest phenomena in Quaternary. The contributions cover the whole spectrum of geoscientific research, geology, paleontology, petrology, geochemistry, geophysics and geomorphology. In conclusion, the data published here may help to improve the picture of Andean structure and evolution. The detailed investigations carried out in the past years show, that the first simple plate tectonic models proposed in the beginning of the seventies have to improved and modified. Furthermore, the results can be seen as contribution to the international Lithospheric Project and as a useful data base for the construction of a Central Andean Transect...

Description / Table of Contents: Papers from an international Conference on Near-rings and Near-fields, held at the Mathematical Institute of the University of Tübingen, Aug. 4-10, 1985

Description / Table of Contents: A. J. Fleet, K. Kelts, and M. R. Talbot: Introduction / Geological Society, London, Special Publications, 40:vii-x, doi:10.1144/GSL.SP.1988.040.01.01 --- Part I Tectonic, Geological, Geochemical and Biological Framework --- K. Kelts: Environments of deposition of lacustrine petroleum source rocks: an introduction / Geological Society, London, Special Publications, 40:3-26, doi:10.1144/GSL.SP.1988.040.01.02 --- J. F. Talling: Modern phytoplankton production in African lakes / Geological Society, London, Special Publications, 40:27-28, doi:10.1144/GSL.SP.1988.040.01.03 --- M. R. Talbot: The origins of lacustrine oil source rocks: evidence from the lakes of tropical Africa / Geological Society, London, Special Publications, 40:29-43, doi:10.1144/GSL.SP.1988.040.01.04 --- P. De Deckker: Large Australian lakes during the last 20 million years: sites for petroleum source rock or metal ore deposition, or both? / Geological Society, London, Special Publications, 40:45-58, doi:10.1144/GSL.SP.1988.040.01.05 --- R. S. Oremland, J. E. Cloern, R. L. Smith, C. W. Culbertson, J. Zehr, L. Miller, B. Cole, R. Harvey, Z. Sofer, N. Iversen, M. Klug, D. J. Des Marais, and G. Rau: Microbial and biogeochemical processes in Big Soda Lake, Nevada / Geological Society, London, Special Publications, 40:59-75, doi:10.1144/GSL.SP.1988.040.01.06 --- C. P. Summerhayes: Predicting palaeoclimates / Geological Society, London, Special Publications, 40:77-78, doi:10.1144/GSL.SP.1988.040.01.07 --- Part II Palaeoenvironmental Indicators --- B. J. Katz: Clastic and carbonate lacustrine systems: an organic geochemical comparison (Green River Formation and East African lake sediments) / Geological Society, London, Special Publications, 40:81-90, doi:10.1144/GSL.SP.1988.040.01.08 --- M. Vandenbroucke and F. Behar: Geochemical characterization of the organic matter from some recent sediments by a pyrolysis technique / Geological Society, London, Special Publications, 40:91-101, doi:10.1144/GSL.SP.1988.040.01.09 --- J. K. Volkman: Biological marker compounds as indicators of the depositional environments of petroleum source rocks / Geological Society, London, Special Publications, 40:103-122, doi:10.1144/GSL.SP.1988.040.01.10 --- H. L. ten Haven, J. W. de Leeuw, J. S. Sinninghe Damsté, P. A. Schenck, S. E. Palmer, and J. E. Zumberge: Application of biological markers in the recognition of palaeohypersaline environments / Geological Society, London, Special Publications, 40:123-130, doi:10.1144/GSL.SP.1988.040.01.11 --- W. Davison: Interactions of iron, carbon and sulphur in marine and lacustrine sediments / Geological Society, London, Special Publications, 40:131-137, doi:10.1144/GSL.SP.1988.040.01.12 --- R. F. Yuretich: Possible relationships of stratigraphy and clay mineralogy to source rock potential in lacustrine sequences / Geological Society, London, Special Publications, 40:139-151, doi:10.1144/GSL.SP.1988.040.01.13 --- B. Bahrig: Palaeo-environment information from deep water siderite (Lake of Laach, West Germany) / Geological Society, London, Special Publications, 40:153-158, doi:10.1144/GSL.SP.1988.040.01.14 --- Jiang De-xin: Spores and pollen in oils as indicators of lacustrine source rocks / Geological Society, London, Special Publications, 40:159-169, doi:10.1144/GSL.SP.1988.040.01.15 --- Part III Case Studies --- A. D. Duncan and R. F. M. Hamilton: Palaeolimnology and organic geochemistry of the Middle Devonian in the Orcadian Basin / Geological Society, London, Special Publications, 40:173-201, doi:10.1144/GSL.SP.1988.040.01.16 --- S. J. Hillier and J. E. A. Marshall: Hydrocarbon source rocks, thermal maturity and burial history of the Orcadian Basin, Scotland / Geological Society, London, Special Publications, 40:203, doi:10.1144/GSL.SP.1988.040.01.17 --- J. Parnell: Significance of lacustrine cherts for the environment of source-rock deposition in the Orcadian Basin, Scotland / Geological Society, London, Special Publications, 40:205-217, doi:10.1144/GSL.SP.1988.040.01.18 --- G. W. F. Loftus and J. T. Greensmith: The lacustrine Burdiehouse Limestone Formation—a key to the deposition of the Dinantian Oil Shales of Scotland / Geological Society, London, Special Publications, 40:219-234, doi:10.1144/GSL.SP.1988.040.01.19 --- J. Parnell: Lacustrine petroleum source rocks in the Dinantian Oil Shale Group, Scotland: a review / Geological Society, London, Special Publications, 40:235-246, doi:10.1144/GSL.SP.1988.040.01.20 --- P. J. W. Gore: Lacustrine sequences in an early Mesozoic rift basin: Culpeper Basin, Virginia, USA / Geological Society, London, Special Publications, 40:247-278, doi:10.1144/GSL.SP.1988.040.01.21 --- Fu Jiamo, Sheng Guoying, and Liu Dehan: Organic geochemical characteristics of major types of terrestrial petroleum source rocks in China / Geological Society, London, Special Publications, 40:279-289, doi:10.1144/GSL.SP.1988.040.01.22 --- Luo Binjie, Yang Xinghua, Lin Hejie, and Zheng Guodong: Characteristics of Mesozoic and Cenozoic non-marine source rocks in north-west China / Geological Society, London, Special Publications, 40:291-298, doi:10.1144/GSL.SP.1988.040.01.23 --- S. C. Brassell, G. Eglinton, Guoying Sheng, and Jiamo Fu: Biological markers in lacustrine Chinese oil shales / Geological Society, London, Special Publications, 40:299-308, doi:10.1144/GSL.SP.1988.040.01.24 --- Wang Tieguan, Fan Pu, and F. M. Swain: Geochemical characteristics of crude oils and source beds in different continental facies of four oil-bearing basins, China / Geological Society, London, Special Publications, 40:309-325, doi:10.1144/GSL.SP.1988.040.01.25 --- D. M. McKirdy, R. E. Cox, and J. G. G. Morton: Biological marker, isotopic and geological studies of lacustrine crude oils in the western Otway Basin, South Australia / Geological Society, London, Special Publications, 40:327, doi:10.1144/GSL.SP.1988.040.01.26 --- A. C. Hutton: The lacustrine Condor oil shale sequence / Geological Society, London, Special Publications, 40:329-340, doi:10.1144/GSL.SP.1988.040.01.27 --- M. R. Gibling: Cenozoic lacustrine basins of South-east Asia, their tectonic setting, depositional environment and hydrocarbon potential / Geological Society, London, Special Publications, 40:341-351, doi:10.1144/GSL.SP.1988.040.01.28 --- P. Anadón, L. Cabrera, and R. Julià: Anoxic-oxic cyclical lacustrine sedimentation in the Miocene Rubielos de Mora Basin, Spain / Geological Society, London, Special Publications, 40:353-367, doi:10.1144/GSL.SP.1988.040.01.29 --- R. Crossley and B. Owen: Sand turbidites and organic-rich diatomaceous muds from Lake Malawi, Central Africa / Geological Society, London, Special Publications, 40:369-374, doi:10.1144/GSL.SP.1988.040.01.30

Description / Table of Contents: Introduction --- K. W. Glennie: Desert sediments: ancient and modern / Geological Society, London, Special Publications, 35:1-4, doi:10.1144/GSL.SP.1987.035.01.01: Fluvial Sediments: Process and Form --- A. P. Schick, J. Lekach, and M. A. Hassan: Vertical exchange of coarse bedload in desert streams / Geological Society, London, Special Publications, 35:7-16, doi:10.1144/GSL.SP.1987.035.01.02 --- S. Grossman and R. Gerson: Fluviatile deposits and morphology of alluvial surfaces as indicators of Quaternary environmental changes in the southern Negev, Israel / Geological Society, London, Special Publications, 35:17-29, doi:10.1144/GSL.SP.1987.035.01.03 --- J. K. Maizels: Plio-Pleistocene raised channel systems of the western Sharqiya (Wahiba), Oman / Geological Society, London, Special Publications, 35:31-50, doi:10.1144/GSL.SP.1987.035.01.04 --- Tectonism, Climatic Change and Fluviatile Desert Sediments --- L. E. Frostick and I. Reid: Tectonic control of desert sediments in rift basins ancient and modern / Geological Society, London, Special Publications, 35:53-68, doi:10.1144/GSL.SP.1987.035.01.05 --- H. Olsen: Ancient ephemeral stream deposits: a local terminal fan model from the Bunter Sandstone Formation (L. Triassic) in the Tønder-3, -4 and -5 wells, Denmark / Geological Society, London, Special Publications, 35:69-86, doi:10.1144/GSL.SP.1987.035.01.06 --- A. M. Harvey: Alluvial fan dissection: relationships between morphology and sedimentation / Geological Society, London, Special Publications, 35:87-103, doi:10.1144/GSL.SP.1987.035.01.07 --- M. A. J. Williams, P. I. Abell, and B. W. Sparks: Quaternary landforms, sediments, depositional environments and gastropod isotope ratios at Adrar Bous, Tenere Desert of Niger, south-central Sahara / Geological Society, London, Special Publications, 35:105-125, doi:10.1144/GSL.SP.1987.035.01.08 --- Aeolian Sediments: Dust Dynamics and Deposits --- W. B. Whalley, B. J. Smith, J. J. McAlister, and A. J. Edwards: Aeolian abrasion of quartz particles and the production of silt-size fragments: preliminary results / Geological Society, London, Special Publications, 35:129-138, doi:10.1144/GSL.SP.1987.035.01.09 --- K. Pye and H. Tsoar: The mechanics and geological implications of dust transport and deposition in deserts with particular reference to loess formation and dune sand diagenesis in the northern Negev, Israel / Geological Society, London, Special Publications, 35:139-156, doi:10.1144/GSL.SP.1987.035.01.10 --- R. Gerson and R. Amit: Rates and modes of dust accretion and deposition in an arid region—the Negev, Israel / Geological Society, London, Special Publications, 35:157-169, doi:10.1144/GSL.SP.1987.035.01.11 --- H. Vine: Wind-blown materials and W African soils: an explanation of the ‘ferrallitic soil over loose sandy sediments’ profile / Geological Society, London, Special Publications, 35:171-183, doi:10.1144/GSL.SP.1987.035.01.12 --- Dune Dynamics and Deposits --- A. Gunatilaka and S. Mwango: Continental sabkha pans and associated nebkhas in southern Kuwait, Arabian Gulf / Geological Society, London, Special Publications, 35:187-203, doi:10.1144/GSL.SP.1987.035.01.13 --- A. Warren and S. Kay: Dune networks / Geological Society, London, Special Publications, 35:205-212, doi:10.1144/GSL.SP.1987.035.01.14 --- L. B. Clemmensen: Complex star dunes and associated aeolian bedforms, Hopeman Sandstone (Permo-Triassic), Moray Firth Basin, Scotland / Geological Society, London, Special Publications, 35:213-231, doi:10.1144/GSL.SP.1987.035.01.15 --- B. P. J. Williams, E. K. Wild, and R. J. Suttill: Late Palaeozoic cold-climate aeolianites, southern Cooper Basin, South Australia / Geological Society, London, Special Publications, 35:233-249, doi:10.1144/GSL.SP.1987.035.01.16 --- R. A. Carruthers: Aeolian sedimentation from the Galtymore Formation (Devonian), Ireland / Geological Society, London, Special Publications, 35:251-268, doi:10.1144/GSL.SP.1987.035.01.17 --- Grain Size, Process and Dune Environment --- E. C. Flenley, N. R. J. Fieller, and D. D. Gilbertson: The statistical analysis of ‘mixed’ grain size distributions from aeolian sands in the Libyan Pre-Desert using log skew Laplace models / Geological Society, London, Special Publications, 35:271-280, doi:10.1144/GSL.SP.1987.035.01.18 --- I. Livingstone: Grain-size variation on a ‘complex’ linear dune in the Namib Desert / Geological Society, London, Special Publications, 35:281-291, doi:10.1144/GSL.SP.1987.035.01.19 --- D. S. G. Thomas: Discrimination of depositional environments using sedimentary characteristics in the Mega Kalahari, central southern Africa / Geological Society, London, Special Publications, 35:293-306, doi:10.1144/GSL.SP.1987.035.01.20 --- Chemical Sediments --- D. A. Hendry: Silica and calcium carbonate replacement of plant roots in tropical dune sands, SE India / Geological Society, London, Special Publications, 35:309-319, doi:10.1144/GSL.SP.1987.035.01.21 --- C. R. Roberts and C. W. Mitchell: Spring mounds in southern Tunisia / Geological Society, London, Special Publications, 35:321-334, doi:10.1144/GSL.SP.1987.035.01.22 --- Remote Sensing of Desert Sediments --- C. S. Breed, J. F. McCauley, and P. A. Davis: Sand sheets of the eastern Sahara and ripple blankets on Mars / Geological Society, London, Special Publications, 35:337-359, doi:10.1144/GSL.SP.1987.035.01.23 --- M. M. Ashour: Surficial deposits of Qatar Peninsula / Geological Society, London, Special Publications, 35:361-367, doi:10.1144/GSL.SP.1987.035.01.24 --- A. C. Millington, A. R. Jones, N. Quarmby, and J. R. G. Townshend: Remote sensing of sediment transfer processes in playa basins / Geological Society, London, Special Publications, 35:369-381, doi:10.1144/GSL.SP.1987.035.01.25

Description / Table of Contents: Andrew C. Scott: Coal and coal-bearing strata: recent advances and future prospects / Geological Society, London, Special Publications, 32:1-6, doi:10.1144/GSL.SP.1987.032.01.01 --- P. D. Moore: Ecological and hydrological aspects of peat formation / Geological Society, London, Special Publications, 32:7-15, doi:10.1144/GSL.SP.1987.032.01.02 --- R. S. Clymo: Rainwater-fed peat as a precursor of coal / Geological Society, London, Special Publications, 32:17-23, doi:10.1144/GSL.SP.1987.032.01.03 --- A. M. Ziegler, A. L. Raymond, T. C. Gierlowski, M. A. Horrell, D. B. Rowley, and A. L. Lottes: Coal, climate and terrestrial productivity: the present and early Cretaceous compared / Geological Society, London, Special Publications, 32:25-49, doi:10.1144/GSL.SP.1987.032.01.04 --- Peter J. McCabe: Facies studies of coal and coal-bearing strata / Geological Society, London, Special Publications, 32:51-66, doi:10.1144/GSL.SP.1987.032.01.05 --- Margaret E. Collinson and Andrew C. Scott: Implications of vegetational change through the geological record on models for coal-forming environments / Geological Society, London, Special Publications, 32:67-85, doi:10.1144/GSL.SP.1987.032.01.06 --- D. J. Casagrande: Sulphur in peat and coal / Geological Society, London, Special Publications, 32:87-105, doi:10.1144/GSL.SP.1987.032.01.07 --- Arthur D. Cohen, William Spackman, and Robert Raymond, Jr: Interpreting the characteristics of coal seams from chemical, physical and petrographic studies of peat deposits / Geological Society, London, Special Publications, 32:107-125, doi:10.1144/GSL.SP.1987.032.01.08 --- Marlies Teichmüller: Recent advances in coalification studies and their application to geology / Geological Society, London, Special Publications, 32:127-169, doi:10.1144/GSL.SP.1987.032.01.09 --- D. A. Spears: Mineral matter in coals, with special reference to the Pennine Coalfields / Geological Society, London, Special Publications, 32:171-185, doi:10.1144/GSL.SP.1987.032.01.10 --- K. M. Bartram: Lycopod succession in coals: an example from the Low Barnsley Seam (Westphalian B), Yorkshire, England / Geological Society, London, Special Publications, 32:187-199, doi:10.1144/GSL.SP.1987.032.01.11 --- I. M. Fulton: Genesis of the Warwickshire Thick Coal: a group of long-residence histosols / Geological Society, London, Special Publications, 32:201-218, doi:10.1144/GSL.SP.1987.032.01.12 --- D. K. Hobday: Gondwana coal basins of Australia and South Africa: tectonic setting, depositional systems and resources / Geological Society, London, Special Publications, 32:219-233, doi:10.1144/GSL.SP.1987.032.01.13 --- D. H. Land and C. M. Jones: Coal geology and exploration of part of the Tertiary Kutei Basin in East Kalimantan, Indonesia / Geological Society, London, Special Publications, 32:235-255, doi:10.1144/GSL.SP.1987.032.01.14 --- D. G. Murchison: Recent advances in organic petrology and organic geochemistry: an overview with some reference to ‘oil from coal’ / Geological Society, London, Special Publications, 32:257-302, doi:10.1144/GSL.SP.1987.032.01.15 --- Ganjavar Khavari Khorasani: Oil-prone coals of the Walloon Coal Measures, Surat Basin, Australia / Geological Society, London, Special Publications, 32:303-310, doi:10.1144/GSL.SP.1987.032.01.16

Description / Table of Contents: P. P. E. Weaver, J. Thomson, and P. M. Hunter: Introduction / Geological Society, London, Special Publications, 31:vii-xii, doi:10.1144/GSL.SP.1987.031.01.01 --- Orrin H. Pilkey: Sedimentology of basin plains / Geological Society, London, Special Publications, 31:1-12, doi:10.1144/GSL.SP.1987.031.01.02 --- A. Kuijpers, E. J. Th. Duin, and G. J. de Lange: Areal sedimentation rate patterns of the southern Nares Abyssal Plain, western N Atlantic / Geological Society, London, Special Publications, 31:13-22, doi:10.1144/GSL.SP.1987.031.01.03 --- Michael T. Ledbetter and Adam Klaus: Influence of bottom currents on sediment texture and sea-floor morphology in the Argentine Basin / Geological Society, London, Special Publications, 31:23-31, doi:10.1144/GSL.SP.1987.031.01.04 --- Robert B. Kidd, Peter M. Hunter, and Robert W. Simm: Turbidity-current and debris-flow pathways to the Cape Verde Basin: status of long-range side-scan sonar (GLORIA) surveys / Geological Society, London, Special Publications, 31:33-48, doi:10.1144/GSL.SP.1987.031.01.05 --- R. C. Searle: Regional setting and geophysical characterization of the Great Meteor East area in the Madeira Abyssal Plain / Geological Society, London, Special Publications, 31:49-70, doi:10.1144/GSL.SP.1987.031.01.06 --- P. P. E. Weaver and R. G. Rothwell: Sedimentation on the Madeira Abyssal Plain over the last 300 000 years / Geological Society, London, Special Publications, 31:71-86, doi:10.1144/GSL.SP.1987.031.01.07 --- S. R. J. Williams: Faulting in abyssal-plain sediments, Great Meteor East, Madeira Abyssal Plain / Geological Society, London, Special Publications, 31:87-104, doi:10.1144/GSL.SP.1987.031.01.08 --- Q. J. Huggett: Mapping of hemipelagic versus turbiditic muds by feeding traces observed in deep-sea photographs / Geological Society, London, Special Publications, 31:105-112, doi:10.1144/GSL.SP.1987.031.01.09 --- P. J. Schultheiss and M. Noel: Evidence of pore-water advection in the Madeira Abyssal Plain from pore-pressure and temperature measurements / Geological Society, London, Special Publications, 31:113-129, doi:10.1144/GSL.SP.1987.031.01.10 --- L. E. Shephard, A. K. Rutledge, W. R. Bryant, and K. M. Moran: Geotechnical characteristics of fine-grained turbidite sequences from the Nares Abyssal Plain / Geological Society, London, Special Publications, 31:131-146, doi:10.1144/GSL.SP.1987.031.01.11 --- Gert J. de Lange, Ian Jarvis, and Antoon Kuijpers: Geochemical characteristics and provenance of late Quaternary sediments from the Madeira Abyssal Plain, N Atlantic / Geological Society, London, Special Publications, 31:147-165, doi:10.1144/GSL.SP.1987.031.01.12 --- J. Thomson, S. Colley, N. C. Higgs, D. J. Hydes, T. R. S. Wilson, and J. Sørensen: Geochemical oxidation fronts in NE Atlantic distal turbidites and their effects in the sedimentary record / Geological Society, London, Special Publications, 31:167-177, doi:10.1144/GSL.SP.1987.031.01.13 --- Ian Jarvis and Nigel Higgs: Trace-element mobility during early diagenesis in distal turbidites: late Quaternary of the Madeira Abyssal Plain, N Atlantic / Geological Society, London, Special Publications, 31:179-214, doi:10.1144/GSL.SP.1987.031.01.14 --- D. Heggie, C. Maris, A. Hudson, J. Dymond, R. Beach, and J. Cullen: Organic carbon oxidation and preservation in NW Atlantic continental margin sediments / Geological Society, London, Special Publications, 31:215-236, doi:10.1144/GSL.SP.1987.031.01.15

Description / Table of Contents: INTRODUCTION - WHY THIS BOOK? Why study Numerical Geology? Although geologists have dabbled in numbers since the time of Hutton and Playfair, 200 years ago (Merriam 1981e), geology until recently lagged behind other sciences in both the teaching and geological application of mathematics, statistics and computers. Geology Departments incorporating these disciplines in their undergraduate courses are still few (particularly outside the USA). Only two international geomathematical/computing journals are published (Computers & Geosciences; Mathematical Geology), compared with dozens covering, say, petrology or mineralogy. It also remains common practice for years (and $1000s) to be spent setting up computerized machines to produce large volumes of data in machine-readable form, and then for geologists to plot these by hand on a sheet of graph paper! Despite this, the use of numerical methods in geology has now begun to increase at a rate which implies a revolution of no less importance than the plate tectonic revolution of the 1960's -- one whose impact is beginning to be felt throughout the academic, commercial, governmental and private consultative geological communities (Merriam 1969, 1981c). Although a few pioneers have been publishing benchmark papers for some years, the routine usage of machine-based analytical techniques, and the advent of low-priced desk-top microcomputers, have successively enabled and now at last persuaded many more geologists to become both numerate and computerate. Merriam (1980) estimated that two decades of increasing awareness had seen the percentage of geomathematical papers (sensu lato) rise to some 15% of all geological literature; meanwhile, mineralogy-petrology and geochemistry had both fallen to a mere 5% each! In these Notes, geomathematics and numerical geology are used interchangeably, to cover applications of mathematics, statistics and computing to processing real geological data. However, as applications which primarily store or retrieve numbers (e.g. databases) are included, as well as those involving actual mathematical calculations, 'Numerical Geology' is preferred in the title. 'Geomathematics' in this sense should not be confused with 'geostatistics', now usually restricted to a specialised branch of geomathematics dealing with ore body estimation (§20). Reasons for studying Numerical Geology can be summarised as follows: (1) Volumes of new and existing numerical data: The British Geological Survey, the world's oldest, recently celebrated its 150th anniversary by establishing a National Geoscience data-centre, in which it is hoped to store all accumulated records on a computer (Lumsden & Flowarth 1986). Information already existing in the Survey's archives is believed to amount to tens or hundreds of Gb (i.e. = 1010-11 characters) and to be increasing by a few percent annually. The volumes of valuable data existing in the worM's geological archives, over perhaps 250 years of geological endeavour, must therefore be almost immeasurably greater. It is now routine even for students to produce hundreds or thousands of multi-element analyses for a single thesis, while national programs of geochemical sampling easily produce a million individual dement values. Such volumes of data simply cannot be processed realistically by manual means; they require mathematical and statistical manipulation on computers -- in some cases large computers. (2) Better use of coded/digitised data: In addition to intrinsically numerical (e.g. chemical) data, geology produces much information which can be more effectively used if numerically coded. For example, relatively little can be done with records of, say, 'limestone' and 'sandstone' in a borehole log, but very much more can be done if these records are numerically coded as 'limestone = 1' and 'sandstone = 2'. Via encoding, enormous volumes of data are opened to computer processing which would otherwise have lain dormant. More importantly, geological maps - perhaps the most important tool of the entire science - can themselves be digitised (turned into large sets of numbers), opening up vast new possibilities for manipulation, revision, scale-change and other improvements. (3) Intelligent data use: It is absurd to acquire large volumes of data and then not to interpret them fully. Field geologists observing an outcrop commonly split into two (or more) groups, arguing perhaps over the presence or absence of a preferred orientation in kyanite crystals on a schist foliation surface. The possibility of actually measuring these orientations and analyzing them statistically (§17) is rarely aired-- at last in this author's experience! Petrologists are equally culpable when they rely on X-Y or, at maximum 'sophistication', X-Y-Z (triangular) variation diagrams, in representing the evolution of igneous rocks which have commonly been analyzed for up to 50 elements! Whereas some geological controversies (especially those based on interpretation of essentially subjective field observations) cannot be resolved numerically, many others can and should be. This is not to say (as Lord Kelvin did) that quantitative science is the only good science, but qualitative treatment of quantitative data is rarely anything but bad science. (4) Literature search and data retrieval: Most research projects must begin with reviews of the literature and, frequently, with exhaustive compilations of existing data. These are essential if informed views on the topic are to be reached, existing work is not merely to be duplicated, and optimum use is to be made of available funding, The ever-expanding geological literature, however, makes such reviews and compilations increasingly time-consuming and expensive via traditional manual means. Use of the increasing number of both bibliographical and analytical databases (§3) is therefore becoming a prequisite for well-informed, high-quality research. (5) Unification of interests: In these days of inexorably increasing specialisation in ever narrower topics, brought about by the need to keep abreast of the exploding literature, numerical geology forms a rare bridge between different branches not only of geology but of diverse other sciences. The techniques covered in this book are equally applicable (and in many cases have been in routine use for far longer) in biology, botany, geography, medicine, psychology, sociology, zoology, etc. Within geology itself, most topics covered here are as valuable to the stratigrapher as to the petrologist. 'Numerical geologists' are thus in the unique (and paradoxical) position of being both specialists and non-specialists; they may have their own interests, but their numerical and computing knowledge can often help all of their colleagues. (6) Employment prospects: There is a clear and increasing demand for computerate/numerate geologists in nearly all employment fields. In Australia, whose economy is dominated by geology-related activities (principally mining), a comprehensive national survey (AMIRA 1985) estimated that A$40M per annum could be saved by more effective use of computers in geology. Professional computer scientists are also of course in demand, but the inability of some of their number to communicate with 'laymen' is legendary! Consequently, many finns have perpetual need for those rare animals who combine knowledge of computing and mathematics with practical geological experience. Their unique bridging role also means that numerical geologists are less likely to be affected by the vaguaries of the employment market than are more specialised experts. Rationale and aims of this book This is a highly experimental book, constituting the interim text for new (1988) courses in 'Numerical Geology' at the University of Western Australia. It is published in the Springer Lecture Notes in Earth Sciences series precisely because, as the rubric for this series has it, "the timeIiness of a manuscript is more important than its form, which may be unfinished or tentative." Readers are more than welcome to send constructive comments to the author, such that a more seasoned, comprehensive version can be created in due course. Readers' indulgence is meanwhile craved for the number of mistakes which must inevitably remain in a work involving so many citations and cross-references. Emphasis is particularly placed on the word Notes in the series rifle: this book is not a statistical or mathematical treatise. It is not intended to stand on its own, but rather to complement and target the existing literature. It is most emphatically not a substitute for sound statistical knowledge, and indeed, descriptions of each technique are deliberately minimized such that readers shouM never be tempted to rely on this book alone, but should rather read around the subject in the wealth of more authoritative statistical and geomathematical texts cited. In other words, this is a synoptic work, principally about 'how to do', 'when not to do', 'what are the alternatives' and 'where to find out more'. It aims specifically: (1) to introduce geologists to the widest possible range of numerical methods which have already appeared in the literature; and thus (2) to infuse geologists with just sufficient background knowledge that they can: (a) locate more detailed sources of information; (b) understand the broad principles behind interpreting most common geological problems quantitatively; (c) appreciate how to take best advantage of computers; and thereby (d) cope with the "information overload" (Griffiths 1974) which they increasingly face. Even these aims require the reader to become to some extent geologist, computer scientist, mathematician and statistician rolled into one, and a practical balance has therefore been attempted, in which just enough information is hopefully given to expedite correct interpretation and avoidance of pitfalls, but not too much to confuse or deter the reader. Despite the vast literature in mathematics, statistics and computing, and that growing in geomathematics, no previous book was found to fulfill these alms on its own. The range of methods covered here is deliberately much wider than in previous geomathematical textbooks, to provide at least an introduction to most methods geologists may encounter, but other books are consequently relied on for the detail which space here precludes. These Notes adopt a practical approach similar to that in language guidebooks -- at the risk of emulating the 'recipe book' abhorred in some quarters. Every Topic provides a minimum of highly condensed sketch-notes (fuller descriptions are included only where topics are not well covered in existing textbooks), complemented by worked examples using real data from as many fields of geology as space permits. Specialists should thereby be able to locate at least one example close to their problems of the moment. In the earlier (easier) topics, simple worked examples are calculated in full, and equations are given wherever practicable (despite their sometimes forbidding appearance), to enable readers not only to familiarise themselves with the calculations but also to experiment with their own data. In the later (multivariate) topics (where few but the sado-masochistic would wish to try the calculations by hand!), the worked examples comprise simplified output from actual software, to familiarise readers with the types of computer output they may have to interpret in practice. Topics were arranged in previous geomathematical textbooks by statistical subject: 'analysis of variance', 'correlation', 'regression', etc., while nonparametric (rank) methods were usually dealt with separately from classical methods (if at all). Here, topics are arranged by operation (what is to be done), and both classical and rank techniques are covered together, with similar emphasis. When readers know what they want to do, therefore, they need only look in one Topic for all appropriate techniques. The main difficulty of this work is the near impossibility of its goal-- though other books with similarly ambitious goals have been well enough received (e.g.J.Math.Geol. 18(5), 511-512). Some constraints have necessarily been imposed to keep the Notes of manageable size. Geophysics, for example, is sketchily covered, because (i) numerical methods are already far more integrated into most geophysics courses than geology courses; (ii) several recent textbooks (e.g. Cantina & Janecek 1984) cover the corresponding ground for geophysicists. Structural geology is less comprehensively covered or cited than, say, stratigraphy, because (a) it commands many applications of statistics and computing unto itself alone (e.g. 3-D modelling, 'unravelling' of folds), whereas these Notes aim at techniques equally applicable to most branches of geology; (b) excellent comprehensive reviews of structural applications are already available (e.g. Whitten 1969,1981). Remote sensing is also barely covered, since comprehensive source guides similar in purpose to the present one already exist (Carter 1986). For the sake of brevity, phrases throughout this book which refer to males are, with apologies to any whose sensitivities are thereby offended, taken to include females!

Description / Table of Contents: INTRODUCTION While the complex mechanical properties of rocks and soils are studied for quite a while, it is only in the last decades that sound established mathematical models were developed based on accurate experimental data. Some rheological properties of geomaterials as for instance creep, were studied for a long time but the experimental data reported were incomplete and, as a consequence, the models developed have missed either the generality necessary for the solving of engineering problems or some of the major specific mechanical properties possessed by these materials as for instance dilatancy and/or compressibility , long term damage etc. Generally, these very particular empirical models were made for a specific test only and therefore are not appropriate for solving problems involving general loading histories. Let us remind that due to the presence of a great number of cracks and/or pores existing in roks and soils, the mechanical behaviour of geomaterials is quite distinct from that of other materials as for instance metals or plastics. That is why rock and soil rheology has some specific aspects. It must also be mentioned that the solving of various problems of rock and soil mechanics posed by modern technology was not possible by using time-independent models, thus the study and development of rehological models become absolutely necessary. In the last decade or so, very accurate experimantal data became available as a result of the development of experimental techniques and of the growing interest for this field of research in the scientific community. These data, in turn, have made possible the development of genuine models for geomaterials, mainly rheological models, able to describe such properties as creep, dilatancy and/or compressibility during creep, long term damage and failure occurring after various time intervals, slip surface formation etc. Today it is clear that no accurate constitutive equation for rocks can be formulated unless the dilatancy phenomena and the time effects are not included. Another idea is the need of a better description of the concepts of damage and failure of rocks, again using in someway the concepts of irreversible dilatancy or another related notion. In soil rheology it is clear that the scale effect may be taken into consideration in order to obtain a corect information from the routine tests. Also in writing the constitutive equations for soils it is neccessary to take into account the microscopic or local phenomena, because there is a great variety of types of saturated or nonsaturated soils, granular or cohesionless soil etc. The aim of the Euromech Colloquium 196 devoted to Rock and Soil Rheology and therefore that of the present volume too, is to review some of the main results obtained in the last years in this field of research and also to formulate some of the major not yet solved problems which are now under consideration. Exchange of opinions and scientific discussions are quite helpful mainly in those areas where some approaches are controversial and the progress made is quite fast. That is especially true for the rheology of geomaterials, domain of great interest for mining and petroleum engineers, engineering geology, seismology, geophlsics, civil engineering, nuclear and industrial waste storage, geothermal energy storage, caverns for sports, culture, telecommunications, storage of goods and foodstuffs (cold, hot and refrigerated storages), underground oil and natural gas reservoirs etc. Some of the last obtained results are mentioned in the present volume...

Description / Table of Contents: The aim of this volume is to reflect the current state of geoscientific activity focused on the geodynamic evolution of the Atlas system and to discuss new results and ideas. The volume provides a selection of papers on the geological history, structural development, and geophysical data of Morocco. It was not possible to cover all areas of geoscientific interest, however, we hope to shed some light on the major geodynamic problems.