ALBERT

Description / Table of Contents: The Cadomian orogeny was first defined over 60 years ago to describe the earth movements which resulted in an unconformity between an Upper Proterozoic supracrustal sequence, namely the Brioverian, and Cambrian molasse in the north Armorican region. Since that time the terminology has been extended to encompass an extensive orogenic cycle lasting from approximately 700 - 450 Ma recorded in a belt running from the northern Appalachians to Armorica and the Southern British Isles. This volume is the first to collect together the views of workers from a variety of geological disciplines working on a range of aspects of Cadomian geological evolution. The 27 contributions contained provide both reviews and detailed studies of such topics as basement/cover relationships, nature of supracrustal sequences, deformation, metamorphism and magmatism. Lithological, geochemical, geochronological and palaeomagnetic data presented allow petrogenetic and evolutionary models to be erected and assessed and correlations to be considered within the Cadomian belt so that global geodynamic evolutionary models may be postulated. The Volume thus provides an essential reference to current thinking on the Cadomian orogeny and the date to guide future research. Part 1 is concerned with the Cadomian orogeny in the Armorican Massif Starting with a review of the Cadomian orogeny, the contributors discuss Cadomian magmatism and tectonics of northern France and the Channel Islands. Part 2 examines the Cadomian orogeny in other parts of the world, including the UK, Ireland, Iberia and Canada.

Description / Table of Contents: The 47 papers that make up this volume are gathered into eight groups that reflect current research themes: Role of fluid in rock deformation; Fracture and faulting; Instabilities and localization; Flow mechanisms and flow laws; Rock fabrics; Deformation of weak sediments; Experimental modelling using analogue materials; Deformation mechanisms and tectonics. Some of these sections contain review papers, presenting an introductory framework for those new to the subject but the volume is dominated by original research papers.

Description / Table of Contents: The historical links between geology and medicine are surprisingly numerous and diverse. This, the first ever volume dedicated to the subject, contains contributions from an international authorship of geologists, historians and medical professionals.Rocks, minerals, fossils and earths have been used therapeutically since earliest times and details recorded on ancient papyri, clay tablets, medieval manuscripts and early published sources. Pumice was used to clean teeth, antimony to heal wounds, clays as antidotes to poison, gold to cure haemorrhoids and warts, and gem pastes to treat syphilis and the plague, while mineral springs preserved health. Geology was crucial in the development of public health. Medical men who made important contributions to geology include Steno, Worm, Parkinson, Bigsby, William Hunter, Jenner, John Hulke, Conan Doyle, Gorini and various Antarctic explorers.

Description / Table of Contents: Anatolia and the easternmost Mediterranean region, especially Turkey, Cyprus and northern Syria, represent an excellent natural laboratory for the study of fundamental geological processes (e.g. rifting, seafloor spreading, ophiolite genesis and emplacement, subduction, exhumation and collision). Their interaction has created an intriguing array of deep-sea basins, microcontinents and suture zones. The volume's 22 papers include a large amount of new field-based information (much of it multidisciplinary and the product of teamwork). After an overview, the volume is divided into four sections: Late Palaeozoic–Early Cenozoic of the Pontides (northern Turkey); Late Palaeozoic–Early Cenozoic of the Taurides–Anatolides (central and southern Turkey); Late Cretaceous–Pliocene sedimentary basins and structural development (central Anatolia to the Mediterranean); Late Miocene–Recent Neotectonics (southern Turkey, Cyprus and northern Syria). The volume will interest numerous academic researchers, those concerned with resources (e.g. hydrocarbons; mineral deposits) and also hazards (e.g. earthquakes), as well as advanced undergraduate and postgraduate students.

Description / Table of Contents: This volume studies the driving dynamic for thick-skin tectonics. It evaluates the role of various factors that control the development of thick-skin architecture. The studied driving dynamics include individual plate movement rates, overall convergence rates, orogen movement sense with respect to mantle flow and pro-wedge versus retro-wedge location. Numerous internal factors that influence the architecture of thick-skinned dominated orogens have been considered. These include the role of the rheology of the deforming layers, the presence or absence of potential detachment horizons, basement buttresses, crustal thickness variations, inherited strength contrasts and the impact of pre-existing anisotropy in thick-skin orogenic deformation. External factors discussed include the role of both syn-tectonic erosion and deposition in deformation. The study areas begin with worldwide examples and close with a detailed coverage of the Northern Andes natural laboratory, which is characterized by particularly robust data coverage.

Description / Table of Contents: Introduction / Geological Society, London, Special Publications, 48:vii-viii, doi:10.1144/GSL.SP.1990.048.01.01 --- Sedimentology --- Stefan M. Luthi: Sedimentary structures of clastic rocks identified from electrical borehole images / Geological Society, London, Special Publications, 48:3-8,NP-NP-NP-NP,9-10, doi:10.1144/GSL.SP.1990.048.01.02 --- S. D. Harker, G. J. McGann, L. T. Bourke, and J. T. Adams: Methodology of Formation MicroScanner image interpretation in Claymore and Scapa Fields (North Sea) / Geological Society, London, Special Publications, 48:11-25, doi:10.1144/GSL.SP.1990.048.01.03 --- M. H. Rider: Gamma-ray log shape used as a facies indicator: critical analysis of an oversimplified methodology / Geological Society, London, Special Publications, 48:27-37, doi:10.1144/GSL.SP.1990.048.01.04 --- J. C. Herweijer, C. F. W. Höcker, H. Williams, and K. M. Eastwood: The relevance of dip profiles from outcrops as reference for the interpretation of SHDT dips / Geological Society, London, Special Publications, 48:39-43, doi:10.1144/GSL.SP.1990.048.01.05 --- D. E. King: Incorporating geological data in well log interpretation / Geological Society, London, Special Publications, 48:45-55, doi:10.1144/GSL.SP.1990.048.01.06 --- B. P. Moss: Stochastic reservoir description: a methodology / Geological Society, London, Special Publications, 48:57-75, doi:10.1144/GSL.SP.1990.048.01.07 --- C. M. Griffiths: The language of rocks: an example of the use of syntactic analysis in the interpretation of sedimentary environments from wireline logs / Geological Society, London, Special Publications, 48:77-94, doi:10.1144/GSL.SP.1990.048.01.08 --- R. Nurmi, M. Charara, M. Waterhouse, and R. Park: Heterogeneities in carbonate reservoirs: detection and analysis using borehole electrical imagery / Geological Society, London, Special Publications, 48:95-111, doi:10.1144/GSL.SP.1990.048.01.09 --- M. H. Dorfman, J.-J. Newey, and G. R. Coates: New techniques in lithofacies determination and permeability prediction in carbonates using well logs / Geological Society, London, Special Publications, 48:113-120, doi:10.1144/GSL.SP.1990.048.01.10 --- Stratigraphic Correlation --- P. F. Worthington: Sediment cyclicity from well logs / Geological Society, London, Special Publications, 48:123-132, doi:10.1144/GSL.SP.1990.048.01.11 --- C. M. Griffiths and S. Bakke: Interwell matching using a combination of petrophysically derived numerical lithologies and gene-typing techniques / Geological Society, London, Special Publications, 48:133-151, doi:10.1144/GSL.SP.1990.048.01.12 --- D. K. Buckley and D. Oliver: Geophysical logging of water exploration boreholes in the Deccan Traps, Central India / Geological Society, London, Special Publications, 48:153-161, doi:10.1144/GSL.SP.1990.048.01.13 --- Mineralogy and Geochemistry --- M. M. Herron and S. L. Herron: Geological applications of geochemical well logging / Geological Society, London, Special Publications, 48:165-175, doi:10.1144/GSL.SP.1990.048.01.14 --- R. N. Anderson, R. E. Dove, and E. Pratson: Geochemical well logs: calibration and lithostratigraphy in basaltic, granitic and metamorphic rocks / Geological Society, London, Special Publications, 48:177-184,NP-NP,185-194, doi:10.1144/GSL.SP.1990.048.01.15 --- T. S. Brewer, M. A. Lovell, P. K. Harvey, R. Pelling, B. P. Atkin, and A. Adamson: Preliminary geochemical results from DSDP/ODP Hole 504B: a comparison of core and log data / Geological Society, London, Special Publications, 48:195-202, doi:10.1144/GSL.SP.1990.048.01.16 --- T. J. Primmer, S. A. Kerr, and K. J. Myers: Feasibility of in situ elemental analysis in mudrock evaluation / Geological Society, London, Special Publications, 48:203-210, doi:10.1144/GSL.SP.1990.048.01.17 --- Andrew Hurst: Natural gamma-ray spectrometry in hydrocarbon-bearing sandstones from the Norwegian Continental Shelf / Geological Society, London, Special Publications, 48:211-222, doi:10.1144/GSL.SP.1990.048.01.18 --- B. Humphreys and G. K. Lott: An investigation into nuclear log responses of North Sea Jurassic sandstones using mineralogical analysis / Geological Society, London, Special Publications, 48:223-240, doi:10.1144/GSL.SP.1990.048.01.19 --- A. E. Stocks and S. R. Lawrence: Identification of source rocks from wireline logs / Geological Society, London, Special Publications, 48:241-252, doi:10.1144/GSL.SP.1990.048.01.20 --- Identification of Faults and Fractures --- W. H. Fertl: Circumferential acoustic logs detect natural fractures and determine their orientation / Geological Society, London, Special Publications, 48:255-262, doi:10.1144/GSL.SP.1990.048.01.21 --- Karl Audun Lehne: Fracture detection from logs of North Sea chalk / Geological Society, London, Special Publications, 48:263-271, doi:10.1144/GSL.SP.1990.048.01.22 --- T. M. Rønningsland: Structural interpretation of dipmeter results in the Gullfaks Field / Geological Society, London, Special Publications, 48:273-286, doi:10.1144/GSL.SP.1990.048.01.23 --- M. C. Devilliers and Ph. Werner: Example of fault identification using dipmeter data / Geological Society, London, Special Publications, 48:287-295, doi:10.1144/GSL.SP.1990.048.01.24 --- D. Goldberg, D. Speed, C. Wilkinson, and E. Scholz: A correlation of hydraulic conductivity from pulse tests with sonic log amplitudes / Geological Society, London, Special Publications, 48:297-302, doi:10.1144/GSL.SP.1990.048.01.25 --- Physical Properties --- J. S. Bell: Investigating stress regimes in sedimentary basins using information from oil industry wireline logs and drilling records / Geological Society, London, Special Publications, 48:305-325, doi:10.1144/GSL.SP.1990.048.01.26 --- C. J. Evans and N. R. Brereton: In situ crustal stress in the United Kingdom from borehole breakouts / Geological Society, London, Special Publications, 48:327-338, doi:10.1144/GSL.SP.1990.048.01.27 --- M. A. Lovell and P. A. Pezard: Electrical properties of basalts from DSDP Hole 504B: a key to the evaluation of pore space morphology / Geological Society, London, Special Publications, 48:339-345, doi:10.1144/GSL.SP.1990.048.01.28 --- D. C. Entwisle and D. M. McCann: An assessment of the use of Christensen’s equation for the prediction of shear wave velocity and engineering parameters / Geological Society, London, Special Publications, 48:347-354, doi:10.1144/GSL.SP.1990.048.01.29

Description / Table of Contents: A. H. F. Robertson, M. P. Searle, and A. C. Ries: Introduction / Geological Society, London, Special Publications, 49:xi-xviii, doi:10.1144/GSL.SP.1992.049.01.01 --- Evolution of the Oman Tethyan Continental Margin --- A. H. F. Robertson and M. P. Searle: The northern Oman Tethyan continental margin: stratigraphy, structure, concepts and controversies / Geological Society, London, Special Publications, 49:3-25, doi:10.1144/GSL.SP.1992.049.01.02 --- W. Blendinger, A. van Vliet, and M. W. Hughes Clarke: Updoming, rifting and continental margin development during the Late Palaeozoic in northern Oman / Geological Society, London, Special Publications, 49:27-37, doi:10.1144/GSL.SP.1992.049.01.03 --- C. W. Lee: A review of platform sedimentation in the Early and Late Permian of Oman, with particular reference to the Oman Mountains / Geological Society, London, Special Publications, 49:39-47, doi:10.1144/GSL.SP.1992.049.01.04 --- D. Rabu, J. Le Metour, F. Bechennec, M. Beurrier, M. Villey, and C. Bourdillon-Jeudy de Grissac: Sedimentary aspects of the Eo-Alpine cycle on the northeast edge of the Arabian Platform (Oman Mountains) / Geological Society, London, Special Publications, 49:49-68, doi:10.1144/GSL.SP.1992.049.01.05 --- Brian R. Pratt and John D. Smewing: Jurassic and Early Cretaceous platform margin configuration and evolution, central Oman Mountains / Geological Society, London, Special Publications, 49:69-88, doi:10.1144/GSL.SP.1992.049.01.06 --- R. W. Scott: Chronostratigraphy of the Cretaceous carbonate shelf, southeastern Arabia / Geological Society, London, Special Publications, 49:89-108, doi:10.1144/GSL.SP.1992.049.01.07 --- E. A. Haan, S. G. Corbin, M. W. Hughes Clarke, and J. E. Mabillard: The Lower Kahmah Group of Oman: the carbonate fill of a marginal shelf basin / Geological Society, London, Special Publications, 49:109-125, doi:10.1144/GSL.SP.1992.049.01.08 --- P. D. Wagner: Geochemical stratigraphy and porosity controls in Cretaceous carbonates near the Oman Mountains / Geological Society, London, Special Publications, 49:127-137, doi:10.1144/GSL.SP.1992.049.01.09 --- K. F. Watts: Mesozoic carbonate slope facies marking the Arabian platform margin in Oman: depositional history, morphology and palaeogeography / Geological Society, London, Special Publications, 49:139-159, doi:10.1144/GSL.SP.1992.049.01.10 --- D. J. W. Cooper: Sedimentary evolution and palaeogeographical reconstruction of the Mesozoic continental rise in Oman: evidence from the Hamrat Duru Group / Geological Society, London, Special Publications, 49:161-187, doi:10.1144/GSL.SP.1992.049.01.11 --- D. Bernoulli, H. Weissert, and C. D. Blome: Evolution of the Triassic Hawasina Basin, Central Oman Mountains / Geological Society, London, Special Publications, 49:189-202, doi:10.1144/GSL.SP.1992.049.01.12 --- E. T. Tozer and T. J. Calon: Triassic ammonoids from Jabal Safra and Wadi Alwa, Oman, and their significance / Geological Society, London, Special Publications, 49:203-211, doi:10.1144/GSL.SP.1992.049.01.13 --- F. Bechennec, J. Le Metour, D. Rabu, Ch. Bourdillon-de-Grissac, P. de Wever, M. Beurrier, and M. Villey: The Hawasina Nappes: stratigraphy, palaeogeography and structural evolution of a fragment of the south-Tethyan passive continental margin / Geological Society, London, Special Publications, 49:213-223, doi:10.1144/GSL.SP.1992.049.01.14 --- P. De Weaver, Ch. Bourdillon-de Grissac, and F. Bechennec: Permian to Cretaceous radiolarian biostratigraphic data from the Hawasina Complex, Oman Mountains / Geological Society, London, Special Publications, 49:225-238, doi:10.1144/GSL.SP.1992.049.01.15 --- W. Kickmaier and Tj. Peters: Manganese occurrences in the Al Hammah Range — Wahrah Formation, Oman Mountains / Geological Society, London, Special Publications, 49:239-249, doi:10.1144/GSL.SP.1992.049.01.16 --- A. H. F. Robertson, C. D. Blome, D. W. J. Cooper, A. E. S. Kemp, and P. Searle: Evolution of the Arabian continental margin in the Dibba Zone, Northern Oman Mountains / Geological Society, London, Special Publications, 49:251-284, doi:10.1144/GSL.SP.1992.049.01.17 --- A. H. F. Robertson, A. E. S. Kemp, D. C. Rex, and C. D. Blome: Sedimentary and structural evolution of a continental margin transform lineament: the Hatta Zone, Northern Oman Mountains / Geological Society, London, Special Publications, 49:285-305, doi:10.1144/GSL.SP.1992.049.01.18 --- A. Mann and S. S. Hanna: The tectonic evolution of pre-Permian rocks, Central and Southeastern Oman Mountains / Geological Society, London, Special Publications, 49:307-325, doi:10.1144/GSL.SP.1992.049.01.19 --- J. Le Métour, D. Rabu, M. Tegyey, F. Béchennec, M. Beurrier, and M. Villey: Subduction and obduction: two stages in the Eo-Alpine tectonometamorphic evolution of the Oman Mountains / Geological Society, London, Special Publications, 49:327-339, doi:10.1144/GSL.SP.1992.049.01.20 --- Samir S. Hanna: The Alpine deformation of the Central Oman Mountains / Geological Society, London, Special Publications, 49:341-359, doi:10.1144/GSL.SP.1992.049.01.21 --- M. P. Searle, D. J. W. Cooper, and K. F. Watts: Structure of the Jebel Sumeini-Jebel Ghawil area, Northern Oman / Geological Society, London, Special Publications, 49:361-374, doi:10.1144/GSL.SP.1992.049.01.22 --- L. A. Dunne, P. R. Manoogian, and D. F. Pierini: Structural style and domains of the Northern Oman Mountains (Oman and United Arab Emirates) / Geological Society, London, Special Publications, 49:375-386, doi:10.1144/GSL.SP.1992.049.01.23 --- P. L. Michaelis and R. J. Pauken: Seismic interpretation of the structure and stratigraphy of the Strait of Hormuz / Geological Society, London, Special Publications, 49:387-395, doi:10.1144/GSL.SP.1992.049.01.24 --- D. R. D. Boote, D. Mou, and R. I. Waite: Structural evolution of the Suneinah Foreland, Central Oman Mountains / Geological Society, London, Special Publications, 49:397-418, doi:10.1144/GSL.SP.1992.049.01.25 --- J. Warburton, T. J. Burnhill, R. H. Graham, and K. P. Isaac: The evolution of the Oman Mountains Foreland Basin / Geological Society, London, Special Publications, 49:419-427, doi:10.1144/GSL.SP.1992.049.01.26 --- P. A. Cawood, F. K. Green, and T. J. Calon: Origin of culminations within the Southeast Oman Mountains at Jebel Ma-jhool and Ibra Dome / Geological Society, London, Special Publications, 49:429-445, doi:10.1144/GSL.SP.1992.049.01.27 --- D. Q. Coffield: Structures associated with nappe emplacement and culmination collapse in the Central Oman Mountains / Geological Society, London, Special Publications, 49:447-458, doi:10.1144/GSL.SP.1992.049.01.28 --- A. W. Shelton: The interpretation of gravity data in Oman: constraints on the ophiolite emplacement mechanism / Geological Society, London, Special Publications, 49:459-471, doi:10.1144/GSL.SP.1992.049.01.29 --- A. K. El-Shazly and R. G. Coleman: Metamorphism in the Oman Mountains in relation to the Semail ophiolite emplacement / Geological Society, London, Special Publications, 49:473-493, doi:10.1144/GSL.SP.1992.049.01.30 --- S. C. Nolan, P. W. Skelton, B. P. Clissold, and J. D. Smewing: Maastrichtian to early Tertiary stratigraphy and palaeogeography of the Central and Northern Oman Mountains / Geological Society, London, Special Publications, 49:495-519, doi:10.1144/GSL.SP.1992.049.01.31 --- P. W. Skelton, S. C. Nolan, and R. W. Scott: The Maastrichtian transgression onto the northwestern flank of the Proto-Oman Mountains: sequences of rudist-bearing beach to open shelf facies / Geological Society, London, Special Publications, 49:521-547, doi:10.1144/GSL.SP.1992.049.01.32 --- A. Mann, S. S. Hanna, S. C. Nolan, A. Mann, and S. S. Hanna: The post-Campanian tectonic evolution of the Central Oman Mountains: Tertiary extension of the Eastern Arabian Margin / Geological Society, London, Special Publications, 49:549-563, doi:10.1144/GSL.SP.1992.049.01.33 --- J. Maizels and C. McBean: Cenozoic alluvial fan systems of interior Oman: palaeoenvironmental reconstruction based on discrimination of palaeochannels using remotely sensed data / Geological Society, London, Special Publications, 49:565-582, doi:10.1144/GSL.SP.1992.049.01.34 --- Geology and Tectonics of South Oman --- I. G. Gass, A. C. Ries, R. M. Shackleton, and J. D. Smewing: Tectonics, geochronology and geochemistry of the Precambrian rocks of Oman / Geological Society, London, Special Publications, 49:585-599, doi:10.1144/GSL.SP.1992.049.01.35 --- V. P. Wright, A. C. Ries, and S. G. Munn: Intraplatformal basin-fill deposits from the Infracambrian Huqf Group, east Central Oman / Geological Society, London, Special Publications, 49:601-616, doi:10.1144/GSL.SP.1992.049.01.36 --- B. W. Mattes and S. Conway Morris: Carbonate/evaporite deposition in the Late Precambrian — Early Cambrian Ara Formation of Southern Oman / Geological Society, London, Special Publications, 49:617-636, doi:10.1144/GSL.SP.1992.049.01.37 --- A. P. Heward: Salt removal and sedimentation in Southern Oman / Geological Society, London, Special Publications, 49:637-651, doi:10.1144/GSL.SP.1992.049.01.38 --- A. C. Ries and R. M. Shackleton: Structures in the Huqf-Haushi Uplift, east Central Oman / Geological Society, London, Special Publications, 49:653-663, doi:10.1144/GSL.SP.1992.049.01.39 --- F. Moseley: The structure of Masirah Island, Oman / Geological Society, London, Special Publications, 49:665-671, doi:10.1144/GSL.SP.1992.049.01.40 --- R. M. Shackleton, A. C. Ries, P. R. Bird, J. B. Filbrandt, C. W. Lee, and G. C. Cunningham: The Batain Melange of NE Oman / Geological Society, London, Special Publications, 49:673-696, doi:10.1144/GSL.SP.1992.049.01.41 --- J. B. Filbrandt, S. C. Nolan, and A. C. Ries: Late Cretaceous and early Tertiary evolution of Jebel Ja’alan and adjacent areas, NE Oman / Geological Society, London, Special Publications, 49:697-714, doi:10.1144/GSL.SP.1992.049.01.42 --- R. M. Shackleton and A. C. Ries: Tectonics of the Masirah Fault Zone and eastern Oman / Geological Society, London, Special Publications, 49:715-724, doi:10.1144/GSL.SP.1992.049.01.43 --- G. S. Mountain and W. L. Prell: A multiphase plate tectonic history of the southeast continental margin of Oman / Geological Society, London, Special Publications, 49:725-743, doi:10.1144/GSL.SP.1992.049.01.44 --- Warren L. Prell and shipboard party of ODP Leg 117: Neogene tectonics and sedimentation of the SE Oman continental margin: results from ODP Leg 117 / Geological Society, London, Special Publications, 49:745-758, doi:10.1144/GSL.SP.1992.049.01.45 --- G. B. Shimmield, N. B. Price, and T. F. Pedersen: The influence of hydrography, bathymetry and productivity on sediment type and composition of the Oman Margin and in the Northwest Arabian Sea / Geological Society, London, Special Publications, 49:759-769, doi:10.1144/GSL.SP.1992.049.01.46 --- Regional Tectonic Setting --- K. W. Glennie, M. W. Hughes Clarke, M. G. A. Boeuf, W. F. H. Pilaar, and B. M. Reinhardt: Inter-relationship of Makran-Oman Mountains belts of convergence / Geological Society, London, Special Publications, 49:773-786, doi:10.1144/GSL.SP.1992.049.01.47 --- R. Stoneley: The Arabian continental margin in Iran during the Late Cretaceous / Geological Society, London, Special Publications, 49:787-795, doi:10.1144/GSL.SP.1992.049.01.48 --- A. M. C. Şengör: A new model for the late Palaeozoic—Mesozoic tectonic evolution of Iran and implications for Oman / Geological Society, London, Special Publications, 49:797-831, doi:10.1144/GSL.SP.1992.049.01.49

Description / Table of Contents: The main focus of the book is the geological and geophysical interpretation of sedimentary basins along the South, Central and North Atlantic conjugate margins, but concepts derived from physical models, outcrop analogues and present-day margins are also discussed in some chapters. There is an encompassing description of several conjugate margins worldwide, based on recent geophysical and geological datasets. An overview of important aspects related to the geodynamic development and petroleum geology of Atlantic-type sedimentary basins is also included. Several chapters analyse genetic mechanisms and break-up processes associated with rift-phase structures and salt tectonics, providing a full description of conjugate margin basins based on deep seismic profiles and potential field methods.

Description / Table of Contents: Magnetostratigraphy is best known as a technique that employs correlation among different stratigraphic sections using the magnetic directions defining geomagnetic polarity reversals as marker horizons. The ages of the polarity reversals provide common tie points among the sections, allowing accurate time correlation. Recently, studies of magnetic methods and the timing of geological processes have acquired a broader meaning, now referring to many types of magnetic measurements within a stratigraphic sequence. Many of these measurements provide correlation and age control not only for the older and younger boundaries of a polarity interval, but also within intervals. Thus, magnetostratigraphy no longer represents a dating tool based only on geomagnetic polarity reversals, but comprises a set of techniques that includes measurements of geomagnetic field parameters, environmental magnetism, rock-magnetic properties, radiometric dating and astronomically forced palaeoclimatic change recorded in sedimentary rocks, and key corrections to magnetic directions related to geodynamics, palaeocurrents, tectonics and diagenetic processes.