ALBERT

Description / Table of Contents: The perturbation of the earth by mankind causes earthquakes in a variety of situations. This phenomenon continues to be a major concern to engineers and scientists concerned with the mitigation of the consequences of this seismicity, as well as better understanding the processes at its origin. The present volume contains twelve papers from six countries, dealing with observations of triggered and induced seismicity in four continents. The reported cases include seismicity due to hard-rock mines, coal mines, underground research facilities for nuclear waste disposal, water injections, reservoirs, acquifers and oil fields. This volume provides case studies of previously unavailable observations of this phenomenon, investigations of the cause and source mechanism of seismic events, studies of source location distributions, determinations of seismic source parameters, cases of the use of such parameters in assessing rockburst hazard in mines, and measurements of velocity an attenuation properties of rock masses. The present collection of papers provides an excellent indication of the current state of the art and new developments in this area of research.

Description / Table of Contents: The special issue contains contributions presented at the international workshop Seismic waves in laterally inhomogeneous media IV, which was held at the Castle of Trest, Czech Republic, May 22-27, 1995. The workshop, which was attended by about 100 seismologists from more than 10 countries, was devoted mainly to the current state of theoretical and computational means of study of seismic wave propagation in complex structures. The special issue can be of interest for theoretical, global and explorational seismologists. The first part contains papers dealing with the study and the use of various methods of solving forward and inverse problems in complicated structures. Among other methods, discrete-wave number method, the finite-difference method, the edge-wave supperposition method and the ray method are studied and used. Most papers contained in the second part are related to the ray method. The most important topics are two-point ray tracing, grid calculations of travel times and amplitudes and seismic wave propagation in anisotropic media.

Description / Table of Contents: This volume contains 18 papers from 8 countries dealing with different aspects of triggered and induced seismicity. In situ observations of the phenomenon include examples of seismicity due to reservoirs, hard-rock mines, coal mines, mine collapses, brine production caverns, fluid injections, and geothermal hot-dry-rock projects. High-frequency acoustic emission studies from laboratory experiments and hard-rock mines have also been reported. Besides providing case studies of previously unavailable observations of seismicity, the present volume contains investigations of the causes and source mechanism of seismic events, determination of source parameters, seismic hazard as related to the design of support systems for underground openings and procedures for closure of brine production caverns, and the use of seismic and non-destructive techniques in assessing rock damage, measuring dynamic elastic moduli and detecting discontinuities. This collection of papers provides an excellent indication of the state of the art, recent developments and outstanding challenges facing scientists and engineers in understanding the causes and alleviating the effects of induced seismicity.

Description / Table of Contents: This volume contains twenty-five research papers on seismicity patterns, their interpretation and their possible relevance to learning how to predict earthquakes. The interpretation of seismicity patterns has become somewhat controversial. Some researchers present case histories suggesting that earthquakes may be predicted by increased seismic moment release or seismic quiescence and, in general, by understanding the processes of self-organized criticality. Others deny these hypotheses. Although the problem of recognizing foreshocks in real time remains unsolved, new properties of microearthquakes as a function of time are coming to light. Computer modeling of seismicity also is advancing in sophistication and relevance. Surprisingly, b-values seem to hold substantial information about varying local conditions of earthquake generation.

Description / Table of Contents: Earthquakes in shallow subduction zones account for the greatest part of seismic energy release in the Earth and often cause significant damage; in some cases they are accompanied by devastating tsunamis. Understanding the physics of seismogenic and tsunamigenic processes in such zones continues to be a challenging focus of ongoing research. The seismologic and geodetic work reported in this volume highlights the recent advances made toward quantifying and understandig the role of shallow plate coupling in the earthquake generation process. The relation between regional seismotectonics, features in the downgoing plate, and the slip distribution in earthquakes are examined for recent and great historical events. In addition to papers reporting new results, review articles on tsunami and tsunamigenic earthquakes and depth dependent plate interface properties are presented. These observational results, along with complementary laboratory and theoretical studies, can assist in assessing the seismic potential of a given region.

Description / Table of Contents: Variations in seismic Q are sensitive to a much greater extent than are seismic velocity variations on factors such as temperature, fluid content, and the movement of solid state defects in the earth. For that reason an understanding of Q and its variation with position in the earth and with time should provide information in earth's tectonic evolution, as well as on aspects of its internal structure. Progress in understanding Q has suffered from difficulty in obtaining reliable amplitude data at global and temporary stations. Moreover, laboratory determinations of Q, until recently, were most often made at frequencies much higher than those measured by seismologists for waves propagating through the earth. Recent advances in seismic station distribution and quality, as well as in methodology at both high and low fequencies, have greatly improved the quality of observational data available to seismologists from global stations. Concurrent advances have been made in measuring Q using laboratory samples at frequencies that pertain to the earth and in theoretical understanding of seismic wave attenuation. Papers of this volume present new information on Q in the earth from several perspectives: methodology, results from global and regional observations of both body and surface waves, laboratory measurements, and theoretical understanding. The editors believe that we have reached a new threshold in Q studies and that advances in data quality and methodology will spur increased interest in this difficult, but interesting field.

Description / Table of Contents: The special issue contains contributions presented at the international workshop Seismic waves in laterally inhomo- geneous media IV, which was held at the Castle of Trest, Czech Republic, May 22-27, 1995. The workshop, which was attended by about 100 seismologists from more than 10 countries, was devoted mainly to the current state of theoretical and computational means of study of seismic wave propagation in complex structures. The special issue can be of interest for theoretical, global and explorational seismologists. The first part contains papers dealing with the study and the use of various methods of solving forward and inverse problems in complicated structures. Among other methods, discrete-wave number method, the finite-difference method, the edge-wave supperposition method and the ray method are studied and used. Most papers contained in the second part are related to the ray method. The most important topics are two-point ray tracing, grid calculations of travel times and amplitudes and seismic wave propagation in anisotropic media.

Description / Table of Contents: Nick Cameron, Ray Bate, Val Clure, and Jeremy Benton: Oil and gas habitats of the South Atlantic: Introduction / Geological Society, London, Special Publications, 153:1-9, doi:10.1144/GSL.SP.1999.153.01.01 --- The Geological and Geophysical Framework --- Garry D. Karner and Neal W. Driscoll: Tectonic and stratigraphic development of the West African and eastern Brazilian Margins: insights from quantitative basin modelling / Geological Society, London, Special Publications, 153:11-40, doi:10.1144/GSL.SP.1999.153.01.02 --- Kerry Gallagher and Roderick Brown: The Mesozoic denudation history of the Atlantic margins of southern Africa and southeast Brazil and the relationship to offshore sedimentation / Geological Society, London, Special Publications, 153:41-53, doi:10.1144/GSL.SP.1999.153.01.03 --- Renato M. Darros de Matos: History of the northeast Brazilian rift system: kinematic implications for the break-up between Brazil and West Africa / Geological Society, London, Special Publications, 153:55-73, doi:10.1144/GSL.SP.1999.153.01.04 --- Bruce R. Rosendahl and Henrike Groschel-Becker: Deep seismic structure of the continental margin in the Gulf of Guinea: a summary report / Geological Society, London, Special Publications, 153:75-83, doi:10.1144/GSL.SP.1999.153.01.05 --- R. Crossley and D. Cripps: Templates from mainland Africa and the Red Sea for interpreting the early evolution of the South Atlantic / Geological Society, London, Special Publications, 153:85-96, doi:10.1144/GSL.SP.1999.153.01.06 --- Oil and Gas Habitats --- P. Dolan: Western Africa: an unfinished story of oil and gas exploration / Geological Society, London, Special Publications, 153:97-99, doi:10.1144/GSL.SP.1999.153.01.07 --- M. P. Coward, E. G. Purdy, A. C. Ries, and D. G. Smith: The distribution of petroleum reserves in basins of the South Atlantic margins / Geological Society, London, Special Publications, 153:101-131, doi:10.1144/GSL.SP.1999.153.01.08 --- Ian Davison: Tectonics and hydrocarbon distribution along the Brazilian South Atlantic margin / Geological Society, London, Special Publications, 153:133-151, doi:10.1144/GSL.SP.1999.153.01.09 --- Eric H. A. Jungslager: Petroleum habitats of the Atlantic margin of South Africa / Geological Society, London, Special Publications, 153:153-168, doi:10.1144/GSL.SP.1999.153.01.10 --- Organic Geochemistry --- C. F. Schiefelbein, J. E. Zumberge, N. R. Cameron, and S. W. Brown: Petroleum systems in the South Atlantic margins / Geological Society, London, Special Publications, 153:169-179, doi:10.1144/GSL.SP.1999.153.01.11 --- R. Burwood: Angola: source rock control for Lower Congo Coastal and Kwanza Basin petroleum systems / Geological Society, London, Special Publications, 153:181-194, doi:10.1144/GSL.SP.1999.153.01.12 --- Applications --- Ann Holbourn, Wolfgang Kuhnt, Abderrazzak El Albani, Thomas Pletsch, Florian Luderer, and Thomas Wagner: Upper Cretaceous palaeoenvironments and benthonic foraminiferal assemblages of potential source rocks from the western African margin, Central Atlantic / Geological Society, London, Special Publications, 153:195-222, doi:10.1144/GSL.SP.1999.153.01.13 --- A. El Albani, W. Kuhnt, F. Luderer, J. P. Herbin, and M. Caron: Palaeoenvironmental evolution of the Late Cretaceous sequence in the Tarfaya Basin (southwest of Morocco) / Geological Society, London, Special Publications, 153:223-240, doi:10.1144/GSL.SP.1999.153.01.14 --- Thomas Wagner and Thomas Pletsch: Tectono-sedimentary controls on Cretaceous black shale deposition along the opening Equatorial Atlantic Gateway (ODP Leg 159) / Geological Society, London, Special Publications, 153:241-265, doi:10.1144/GSL.SP.1999.153.01.15 --- R. C. Preece, M. A. Kaminski, and T. W. Dignes: Miocene benthonic foraminiferal morphogroups in an oxygen minimum zone, offshore Cabinda / Geological Society, London, Special Publications, 153:267-282, doi:10.1144/GSL.SP.1999.153.01.16 --- Raymond H. Bate: Non-marine ostracod assemblages of the Pre-Salt rift basins of West Africa and their role in sequence stratigraphy / Geological Society, London, Special Publications, 153:283-292, doi:10.1144/GSL.SP.1999.153.01.17 --- R. V. Dingle: Walvis Ridge barrier: its influence on palaeoenvironments and source rock generation deduced from ostracod distributions in the early South Atlantic Ocean / Geological Society, London, Special Publications, 153:293-302, doi:10.1144/GSL.SP.1999.153.01.18 --- Exploration Studies and Issues --- Jonathan P. Turner: Detachment faulting and petroleum prospectivity in the Rio Muni Basin, Equatorial Guinea, West Africa / Geological Society, London, Special Publications, 153:303-320, doi:10.1144/GSL.SP.1999.153.01.19 --- Joanne Bagguley and Sarah Prosser: The interpretation of passive margin depositional processes using seismic stratigraphy: examples from offshore Namibia / Geological Society, London, Special Publications, 153:321-344, doi:10.1144/GSL.SP.1999.153.01.20 --- I. G. Stanistreet and H. Stollhofen: Onshore equivalents of the main Kudu gas reservoir in Namibia / Geological Society, London, Special Publications, 153:345-365, doi:10.1144/GSL.SP.1999.153.01.21 --- Dougal A. Jerram, Nigel Mountney, and Harald Stollhofen: Facies architecture of the Etjo Sandstone Formation and its interaction with the Basal Etendeka Flood Basalts of northwest Namibia: implications for offshore prospectivity / Geological Society, London, Special Publications, 153:367-380, doi:10.1144/GSL.SP.1999.153.01.22 --- J. Clemson, J. Cartwright, and R. Swart: The Namib Rift: a rift system of possible Karoo age, offshore Namibia / Geological Society, London, Special Publications, 153:381-402, doi:10.1144/GSL.SP.1999.153.01.23 --- P. F. Barker: Falkland Plateau evolution and a mobile southernmost South America / Geological Society, London, Special Publications, 153:403-408, doi:10.1144/GSL.SP.1999.153.01.24 --- S. R. Lawrence, M. Johnson, S. R. Tubb, and S. J. Marshallsea: Tectono-stratigraphic evolution of the North Falkland region / Geological Society, London, Special Publications, 153:409-424, doi:10.1144/GSL.SP.1999.153.01.25 --- P. J. E. Bransden, P. Burges, M. J. Durham, and J. G. Hall: Evidence for multi-phase rifting in the North Falklands Basin / Geological Society, London, Special Publications, 153:425-443, doi:10.1144/GSL.SP.1999.153.01.26 --- Neil S. Meadows: Basin evolution and sedimentary fill in the Palaeozoic sequences of the Falkland Islands / Geological Society, London, Special Publications, 153:445-464, doi:10.1144/GSL.SP.1999.153.01.27

Description / Table of Contents: R. W. Jones and M. D. Simmons: Preface and Introduction / Geological Society, London, Special Publications, 152:1-3, doi:10.1144/GSL.SP.1999.152.01.01 --- S. N. J. Payne, D. F. Ewen, and M. J. Bowman: The role and value of ‘high-impact biostratigraphy’ in reservoir appraisal and development / Geological Society, London, Special Publications, 152:5-22, doi:10.1144/GSL.SP.1999.152.01.02 --- S. Duxbury, D. Kadolsky, and S. Johansen: Sequence stratigraphic subdivision of the Humber Group in the Outer Moray Firth area (UKCS, North Sea) / Geological Society, London, Special Publications, 152:23-54, doi:10.1144/GSL.SP.1999.152.01.03 --- P. H. Morris, S. N. J. Payne, and D. P. J. Richards: Micropalaeontological biostratigraphy of the Magnus Sandstone Member (Kimmeridgian-Early Volgian), Magnus Field, UK North Sea / Geological Society, London, Special Publications, 152:55-73, doi:10.1144/GSL.SP.1999.152.01.04 --- D. J. Shipp: Well-site biostratigraphy of Danish horizontal wells / Geological Society, London, Special Publications, 152:75-84, doi:10.1144/GSL.SP.1999.152.01.05 --- J. A. Bergen and P. J. Sikora: Microfossil diachronism in southern Norwegian North Sea chalks: Valhall and Hod fields / Geological Society, London, Special Publications, 152:85-111, doi:10.1144/GSL.SP.1999.152.01.06 --- P. J. Sikora, J. A. Bergen, and C. L. Farmer: Chalk palaeoenvironments and depositional model, Valhall-Hod fields, southern Norwegian North Sea / Geological Society, London, Special Publications, 152:113-137, doi:10.1144/GSL.SP.1999.152.01.07 --- M. D. Bidgood, A. G. Mitlehner, G. D. Jones, and D. J. Jutson: Towards a stable and agreed nomenclature for North Sea Tertiary diatom floras — the ‘Coscinodiscus’ problem / Geological Society, London, Special Publications, 152:139-153, doi:10.1144/GSL.SP.1999.152.01.08 --- N. A. Holmes: The Andrew Formation and ‘biosteering’ — different reservoirs, different approaches / Geological Society, London, Special Publications, 152:155-166, doi:10.1144/GSL.SP.1999.152.01.09 --- G. Mangerud, T. Dreyer, L. Søyseth, O. Martinsen, and A. Ryseth: High-resolution biostratigraphy and sequence development of the Palaeocene succession, Grane Field, Norway / Geological Society, London, Special Publications, 152:167-184, doi:10.1144/GSL.SP.1999.152.01.10 --- R. W. Jones: Forties Field (North Sea) revisited: a demonstration of the value of historical micropalaeontological data / Geological Society, London, Special Publications, 152:185-200, doi:10.1144/GSL.SP.1999.152.01.11 --- D. McLean and S. J. Davies: Constraints on the application of palynology to the correlation of Euramerican Late Carboniferous clastic hydrocarbon reservoirs / Geological Society, London, Special Publications, 152:201-218, doi:10.1144/GSL.SP.1999.152.01.12 --- M. D. Simmons, M. D. Bidgood, P. Brenac, P. D. Crevello, J. J. Lambiase, and C. K. Morley: Microfossil assemblages as proxies for precise palaeoenvironmental determination — an example from Miocene sediments of northwest Borneo / Geological Society, London, Special Publications, 152:219-241, doi:10.1144/GSL.SP.1999.152.01.13 --- R. W. Jones, N. E. Jones, A. D. King, and D. Shaw: Reservoir biostratigraphy of the Pedernales Field, Venezuela / Geological Society, London, Special Publications, 152:243-257, doi:10.1144/GSL.SP.1999.152.01.14 --- J. M. Armentrout, L. B. Fearn, K. Rodgers, S. Root, W. D. Lyle, D. C. Herrick, R. B. Bloch, J. W. Snedden, and B. Nwankwo: High-resolution sequence biostratigraphy of a lowstand prograding deltaic wedge: Oso Field (late Miocene), Nigeria / Geological Society, London, Special Publications, 152:259-290, doi:10.1144/GSL.SP.1999.152.01.15 --- C. J. Van Der Zwan and W. A. Brugman: Biosignals from the EA Field, Nigeria / Geological Society, London, Special Publications, 152:291-301, doi:10.1144/GSL.SP.1999.152.01.16 --- B. J. O’Neill, A. E. DuVernay, and R. A. George: Applied palaeontology: a critical stratigraphic tool in Gulf of Mexico exploration and exploitation / Geological Society, London, Special Publications, 152:303-308, doi:10.1144/GSL.SP.1999.152.01.17

Description / Table of Contents: John R. Underhill and Robert Stoneley: Introduction to the development, evolution and petroleum geology of the Wessex Basin / Geological Society, London, Special Publications, 133:1-18, doi:10.1144/GSL.SP.1998.133.01.01 --- Hydrocarbon Habitat --- James G. Buchanan: The exploration history and controls on hydrocarbon prospectivity in the Wessex basins, southern England, UK / Geological Society, London, Special Publications, 133:19-37, doi:10.1144/GSL.SP.1998.133.01.02 --- P. W. Hawkes, A. J. Fraser, and C. C. G. Einchcomb: The tectono-stratigraphic development and exploration history of the Weald and Wessex basins, Southern England, UK / Geological Society, London, Special Publications, 133:39-65, doi:10.1144/GSL.SP.1998.133.01.03 --- Malcolm Butler: The geological history of the southern Wessex Basin — a review of new information from oil exploration / Geological Society, London, Special Publications, 133:67-86, doi:10.1144/GSL.SP.1998.133.01.04 --- Stratigraphic Syntheses --- Nigel R. Ainsworth, William Braham, F. John Gregory, Ben Johnson, and Christopher King: A proposed latest Triassic to earliest Cretaceous microfossil biozonation for the English Channel and its adjacent areas / Geological Society, London, Special Publications, 133:87-102, doi:10.1144/GSL.SP.1998.133.01.05 --- Nigel R. Ainsworth, William Braham, F. John Gregory, Ben Johnson, and Christopher King: The lithostratigraphy of the latest Triassic to earliest Cretaceous of the English Channel and its adjacent areas / Geological Society, London, Special Publications, 133:103-164, doi:10.1144/GSL.SP.1998.133.01.06 --- David C. Cole and Ian C. Harding: Use of palynofacies analysis to define Lower Jurassic (Sinemurian to Pliensbachian) genetic stratigraphic sequences in the Wessex Basin, England / Geological Society, London, Special Publications, 133:165-185, doi:10.1144/GSL.SP.1998.133.01.07 --- Regional Studies --- Adam Law: Regional uplift in the English Channel: quantification using sonic velocity / Geological Society, London, Special Publications, 133:187-197, doi:10.1144/GSL.SP.1998.133.01.08 --- Richard J. Bray, Ian R. Duddy, and Paul F. Green: Multiple heating episodes in the Wessex Basin: implications for geological evolution and hydrocarbon generation / Geological Society, London, Special Publications, 133:199-213, doi:10.1144/GSL.SP.1998.133.01.09 --- Neil A. McMahon and Jonathan Turner: The documentation of a latest Jurassic-earliest Cretaceous uplift throughout southern England and adjacent offshore areas / Geological Society, London, Special Publications, 133:215-240, doi:10.1144/GSL.SP.1998.133.01.10 --- Structural Studies --- Michael J. Harvey and Simon A. Stewart: Influence of salt on the structural evolution of the Channel Basin / Geological Society, London, Special Publications, 133:241-266, doi:10.1144/GSL.SP.1998.133.01.11 --- C. Smith and I. R. Hatton: Inversion tectonics in the Lyme Bay-West Dorset area of the Wessex Basin, UK / Geological Society, London, Special Publications, 133:267-281, doi:10.1144/GSL.SP.1998.133.01.12 --- H. S. Beeley and M. G. Norton: The structural development of the Central English Channel High — constraints from section restoration / Geological Society, London, Special Publications, 133:283-298, doi:10.1144/GSL.SP.1998.133.01.13 --- R. Hunsdale, D. J. Sanderson, and R. Hunsdale: Fault size distribution analysis — an example from Kimmeridge Bay, Dorset, UK / Geological Society, London, Special Publications, 133:299-310, doi:10.1144/GSL.SP.1998.133.01.14 --- M. Miliorizos and A. Ruffell: Kinematics of the Watchet-Cothelstone-Hatch Fault System: implications for the fault history of the Wessex Basin and adjacent areas / Geological Society, London, Special Publications, 133:311-330, doi:10.1144/GSL.SP.1998.133.01.15 --- Sedimentological Advances --- A. Ruffell: Tectonic accentuation of sequence boundaries: evidence from the Lower Cretaceous of southern England / Geological Society, London, Special Publications, 133:331-348, doi:10.1144/GSL.SP.1998.133.01.16 --- Stephen P. Hesselbo: Basal Wealden of Mupe Bay: a new model / Geological Society, London, Special Publications, 133:349-353, doi:10.1144/GSL.SP.1998.133.01.17 --- R. Goldring, T. R. Astin, J. E. A. Marshall, S. Gabbott, and C. D. Jenkins: Towards an integrated study of the depositional environment of the Bencliff Grit (Upper Jurassic) of Dorset / Geological Society, London, Special Publications, 133:355-372, doi:10.1144/GSL.SP.1998.133.01.18 --- Petroleum Geochemistry --- M. Ashley Bigge and Paul Farrimond: Biodegradation of seep oils in the Wessex Basin — a complication for correlation / Geological Society, London, Special Publications, 133:373-386, doi:10.1144/GSL.SP.1998.133.01.19 --- M. A. Parfitt and P. Farrimond: The Mupe Bay oil seep: a detailed organic geochemical study of a controversial outcrop / Geological Society, London, Special Publications, 133:387-397, doi:10.1144/GSL.SP.1998.133.01.20 --- Oil Field Case Histories --- T. McKie, J. Aggett, and A. J. C. Hogg: Reservoir architecture of the upper Sherwood Sandstone, Wytch Farm field, southern England / Geological Society, London, Special Publications, 133:399-406, doi:10.1144/GSL.SP.1998.133.01.21 --- Jonathan Evans, David Jenkins, and Jon Gluyas: The Kimmeridge Bay oilfield: an enigma demystified / Geological Society, London, Special Publications, 133:407-413, doi:10.1144/GSL.SP.1998.133.01.22