Download or read book The Structural Evolution of the NE Atlantic Region written by Jörg Hanisch and published by . This book was released on 1983 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The NE Atlantic Region written by G. Péron-Pinvidic and published by Geological Society of London. This book was released on 2017-10-30 with total page 465 pages. Available in PDF, EPUB and Kindle. Book excerpt: The NAG-TEC project was a collaborative effort by the British Geological Survey, the Geological Survey of Denmark and Greenland, the Geological Survey of Ireland, the Geological Survey of the Netherlands, the Geological Survey of Northern Ireland, the Geological Survey of Norway, Iceland GeoSurvey and the Faroese Geological Survey (Jarðfeingi), along with a number of academic partners and significant support from industry. The main focus was to investigate the tectonic evolution of the region with a particular emphasis on basin evolution along conjugate margins. A key outcome was the development of a new tectonostratigraphic atlas and database that includes comprehensive geological and geophysical information relevant for understanding the Devonian to present evolution of the NE Atlantic margins. These provide the foundation upon which ongoing research and exploration of the area can build. This Special Publication provides some of the first scientific results and analysis based on the project, including regional stratigraphic analysis and correlations, crustal structure and interpretation of geophysical data sets, plate kinematics and the evolution of igneous provinces.

Download or read book The Structural Evolution of the Faroe Islands NE Atlantic Margin written by Richard James Walker and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The NE Atlantic margin plays host to numerous basins, developed in phases from the Devono-Carboniferous through to the Cenozoic, which record the build up to plate separation and formation of the North Atlantic Ocean. Existing models for this invoke broadly NW-SE extension within the basins, which are segmented by regional-scale NW-SE trending strike-slip lineaments, which are commonly termed?transfer zones?. However, there is a general paucity of information concerning the true kinematics of the so-called transfer zones. In this study, the Palaeogene and later structural evolution of the NE Atlantic margin is investigated using abundant field data collected on the Faroe Islands, and systematic observations that characterise the related deformation structures developed in the Faroe Islands Basalt Group (FIBG). Structures in the Faroe Islands provide evidence for a 6-stage tectonic evolution, here split into 3 broad phases: (1a) E-W to NE-SW extension, accommodated by dip-slip N-S and NW-SE trending faults. Continued NE-SW extension (1b) was then accommodated by the emplacement of a regionally significant NW-SE- and NNE-SSW-oriented dyke swarm. Event 1 affects the majority of the FIBG stratigraphy, resulting in thickness variations, most notably across the Judd, Brynhild and Westray (?transfer?) fault-zones. Continued magmatism and anticlockwise rotation of the extension vector led to (2a) the emplacement of ENE-WSW and ESE-WNW conjugate dykes, followed by intrusion of the large, saucer-shaped sills on the islands. Their intrusion heralded the onset of N-S crustal extension and was followed by (2b) crustal extrusion involving both E-W shortening and further N-S extension facilitated primarily by slip on ENE-WSW (dextral) and ESE-WNW (sinistral) conjugate strike-slip faults, interlinked with minor NE and SW dipping thrust faults. During the final stages of this event (2c), the regional extension vector rotated into a NW-SE orientation that was accommodated predominantly by slip along NE-SW oriented dextral-oblique-slip faults. Event 2 began towards the end of magmatism associated with the FIBG, and most likely continued through to the onset of oceanic-spreading on the Aegir ridge (ca. 55 Ma). Finally, (3) Event 1 and 2 structures were reactivated as extension and extensional-hybrid features, characterised best by the entrainment of clastic material along fault planes. Relative timings of Event 3 structures suggest they formed during a period of compression and uplift following the formation of a through-going mid-ocean ridge system (i.e. on the Reykjanes, Kolbeinsey and Mohns ridges). The progressive anticlockwise rotation of the extension vector identified here is broadly consistent with the most recent NE Atlantic continental break-up reconstructions. Importantly, this model does not require basin-scale transfer zones during the Palaeogene, suggesting instead that these NW-SE faults formed as normal faults during a pre-cursor margin-parallel extension episode (Event 1) prior to the onset of oceanic spreading in the Faroe-Iceland sector. This study emphasises the importance of carrying out detailed field studies in addition to the more usual regional-scale modelling studies, in order to validate and add further detail to basin kinematic histories. Mineralised syn- to post-magmatic fault sets display a recurring zeolite-calcite-zeolite trend in mineralisation products, which precipitate during successive phases of fault development during each individual event. Fault style and damage zone width appear to be related to the stage of fault development, with early fault/vein meshes linking to form through-going structures with associated damage zones. Dykes and sills are found to form their own fractures, rather than exploiting pre-existing sets. Dyke propagation appears to be buoyancy-driven, with magmatic pressure overcoming the minimum compressive stress. Sills, however, most likely seeded at an interface in the stratigraphy between a weak, more ductile material (i.e. a sedimentary horizon), and a rigid material (i.e. basalt lavas) above. Following this initial development, sill growth and propagation would likely be controlled by viscous dissipation, leading to the complex ramp and flat architecture, with rapid intrusion resulting in upward ramping of the sill. The alternation from fault events, to dyke events and back again corresponds to a switch from faulting with mineralisation along extensional hybrid veins, to magmatic intrusions into extension fractures followed by extensional hybrids (conjugates), and back to extensional and shear hybrid faults (again as conjugates). This alternation reflects variations in the differential regional stress, as well as the magmatic evolution of the margin, and most likely relates to the migration of lithospheric thinning northwestwards across the area, towards the eventual axis of break-up. We find that, in particular, faults in basalts are in many ways comparable to faults formed at shallow crustal depths in carbonate rocks and crystalline basement, most likely reflecting the similarities in their mechanical properties under near-surface pressures and temperatures. The nature and style of the post-magmatic fault infills provides compelling evidence to suggest that subterranean cavities associated with faults were persistent open features within the FIBG. Structures equivalent to these late, clastic-filled faults of the Faroes may occur in other parts of the NE Atlantic margin, particularly along the axes of gentle regional-scale folds that are widely developed in the region. The late fault displacements observed are all well below seismic resolution, and such structures may be more widespread across the region than previously anticipated. Importantly, the probable unsealed nature of the clastic infills makes them potential fluid-migration pathways, both up- and across-faults within the Cenozoic volcanic sequences of the NE Atlantic region.

Download or read book Geologic Evolution of Atlantic Continental Rises written by C.W. Poag and published by Springer. This book was released on 1992-08-31 with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt: Because of their great depth and distance from the shore, continental rises have been relatively insulated from geological explorations. Distinguished international experts offer new interpretations of continental-rise deposition at several different locations along the margins of the Atlantic Ocean in this volume. They provide findings generated by new measurement and imaging technology, complete with fold-out maps that display a panorama of erosional features for comparison with other ocean regions. New techniques for detecting and dating tectonic episodes that affect continental rise deposition will be especially useful to petroleum engineers involved in offshore oil exploration. Information is included on the role of massive slides in forming continental-rise deposits and interaction of sedimentation on modern continental rises.

Download or read book Tectonic Evolution of the Northeast Atlantic Ocean written by A. S. Laughton and published by . This book was released on 1975 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Geology of Continental Margins written by C.A. Burk and published by Springer. This book was released on 2013-12-20 with total page 976 pages. Available in PDF, EPUB and Kindle. Book excerpt: The continental margins of the world constitute the most impressive and largest physiographic feature of the earth's surface, and one of fundamentally great geological significance. Continental margins have been the subject of increasing attention in recent years, an interest focused by a body of new data that has provided new insights into their character. This interest was further stimulated by the realization that, in addition to the abundant living resources, continental margins contain petroleum and mineral resources that are accessible with existing technology. This realization, along with their basic geological importance, has provoked further research into the nature of continental margins throughout the world. A summary of these findings, as related to both recent and ancient continental margins, is the subject of this book. At various times in the past we had been approached individually to prepare a basic reference to continental margins; we then proposed to do such a volume jointly. However, the stimulus for the present volume eventually arose from a Penrose Conference arranged through the Geological Society of America. This conference was attended by specialists of numerous disciplines and from throughout the world, many of whom insisted that such a volume would be both timely and useful. Consequently, we agreed to undertake the task of assembling this book, with the objectives of making it available as soon and as inexpensively as possible.

Download or read book Regional Geology and Tectonics Phanerozoic Passive Margins Cratonic Basins and Global Tectonic Maps written by A.W. Bally and published by Elsevier. This book was released on 2012-05-31 with total page 1239 pages. Available in PDF, EPUB and Kindle. Book excerpt: Expert petroleum geologists David Roberts and Albert Bally bring you Regional Geology and Tectonics: Principles of Geologic Analysis, volume one in a three-volume series covering Phanerozoic regional geology and tectonics. It has been written to provide you with a detailed overview of geologic rift systems, passive margins, and cratonic basins, it features the basic principles necessary to grasping the conceptual approaches to hydrocarbon exploration in a broad range of geological settings globally. A "how-to" regional geology primer that provides a detailed overview of tectonics, rift systems.

Download or read book Regional Geology and Tectonics Phanerozoic Passive Margins Cratonic Basins and Global Tectonic Maps written by David G. Roberts and published by Elsevier. This book was released on 2012-05-29 with total page 1239 pages. Available in PDF, EPUB and Kindle. Book excerpt: Expert petroleum geologists David Roberts and Albert Bally bring you Regional Geology and Tectonics: Phanerozoic Passive Margins, Cratonic Basins and Global Tectonic Maps, volume three in a three-volume series covering Phanerozoic regional geology and tectonics. Its key focus is on both volcanic and non-volcanic passive margins, and the importance of salt and shale driven by sedimentary tectonics to their evolution. Recent innovative research on such critical locations as Iberia, Newfoundland, China, and the North Sea are incorporated to provide practical real-world case studies in regional geology and tectonics. The vast amount of volcanic data now available to form accurate hydrocarbon assessments and analysis at passive margin locations is also included into this thorough yet accessible reference. - Named a 2013 Outstanding Academic Title by the American Library Association's Choice publication - A "how-to" practical reference that discusses the impact of the development of passive margins and cratonic basins on the structural evolution of the Earth in regional geology and tectonic applications. - Incorporates the increased availability of industry data to present regional seismic lines and cross-sections, leading to more accurate analysis and assessment of targeted hydrocarbon systems - Analyses of passive margins and cratonic basins in East Africa, China, Siberia, the Gulf of Suez, and the Laptev Sea in the Russian Arctic provide immediately implementable petroleum exploration applications - Summaries of analogue and theoretical models are provided as an essential backdrop to the structure and stratigraphy of various geological settings.

Download or read book Petroleum Geology of the North European Margin written by A. M. Spencer and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 443 pages. Available in PDF, EPUB and Kindle. Book excerpt: Complete Proceedings of the Symposium organised by the Norwegian Petroleum Society and held at Trondheim, Norway in 1983

Download or read book Proceedings of the Ocean Drilling Program written by Ocean Drilling Program and published by . This book was released on 1998 with total page 522 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Continental Evolution The Geology of Morocco written by André Michard and published by Springer. This book was released on 2008-09-26 with total page 438 pages. Available in PDF, EPUB and Kindle. Book excerpt: Morocco is one of the most fascinating lands in the world from the point of view of its geological structure and evolution. Our knowledge on the geology of the country has been greatly improved during the last decades, based on numerous seismic profiles and boreholes, seismological analysis of focal mechanisms, seismic tomography, gravimetric/geodetic modelling and, on the other hand, based on a big National Program of Geological Mapping including modern geochemical analyses (trace elements) and reliable isotopic datings (39Ar-40Ar, U-Pb zircon, Sm-Nd, etc). Moreover, a number of academic studies have been performed in relation with the increasing number of Moroccan universities. Accordingly, there was an utmost urgency to undertake a new treatise of Moroccan geology which could substitute for the classical Eléments de géologie marocaine, published in 1976 by A. Michard in the Notes et Mémoires du Service géologique du Maroc (re-edited twice since 1976, with more than 6000 copies sold, and... translated in Japanese for engineers!). A new treatise has been prepared between April 2006 and July 2007 under the coordination of A. Michard, assisted by O. Saddiqi, and A. Chalouan, by a wide panel of authors from Morocco, France or Belgium among the best connoisseurs of the country. In order to emphasize the general interest of the book, we finally retain the following title: Continental Evolution: The Geology of Morocco. Structure, Stratigraphy, and Tectonics of the Africa-Atlantic-Mediterranean Triple junction. The editing and production of this book was supported by the following organisations: The Geological Society of France (SGF) The National Office of Hydrocarbons and Mines of Morocco (ONHYM) The International Lithosphere Program (ILP)

Download or read book Petroleum Geology of Northwest Europe written by A. J. Fleet and published by Geological Society of London. This book was released on 1999-09 with total page 758 pages. Available in PDF, EPUB and Kindle. Book excerpt: A review of the extensive advances made in the understanding the petroleum geology of the Atlantic margin of northwest Europe, of the North Sea and of adjacent areas since the;ast conference in 1992. In particular, the volume focuses on: the development of and application of 3D seismic, time-lapse ('4D') and other innovative seismic tools; the ongoing refinement of sequence and other stratigraphic approaches, including the integration of detailed biostratigraphic data; the development of modelling at both the reservoir and basin scale which can respond to new data acquisition and be used to assess uncertainties at the reservoir scale and scenarios at the basin scale.

Download or read book Tectonic Evolution of the North Sea Rifts written by Derek John Blundell and published by Oxford University Press, USA. This book was released on 1990 with total page 298 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume presents an up-to-date account of the development of the North Sea Rift system and its associated sedimentary basins, with contributions by leading researchers. The work examines tectonic and palaeogeographic development, using evidence from proposed crustal models, and discusses the geological mechanism of rifting and its influence on the structure and patterns of sedimentation in the basins and their bearing on the potential for oil and gas accumulation. A comprehensive gravity map is included.

Download or read book Rheology and Deformation of the Lithosphere at Continental Margins written by Garry D. Karner and published by Columbia University Press. This book was released on 2004 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt: Traditionally, investigations of the rheology and deformation of the lithosphere (the rigid or mechanically strong outer layer of the Earth, which contains the crust and the uppermost part of the mantle) have taken place at one scale in the laboratory and at an entirely different scale in the field. Laboratory experiments are generally restricted to centimeter-sized samples and day- or year-length times, while geological processes occur over tens to hundreds of kilometers and millions of years. The application of laboratory results to geological systems necessitates extensive extrapolation in both temporal and spatial scales, as well as a detailed understanding of the dominant physical mechanisms. The development of an understanding of large-scale processes requires an integrated approach. This book explores the current cutting-edge interdisciplinary research in lithospheric rheology and provides a broad summary of the rheology and deformation of the continental lithosphere in both extensional and compressional settings. Individual chapters explore contemporary research resulting from laboratory, observational, and theoretical experiments.

Download or read book Transboundary population structure of sardine European hake and blackspot seabream in the Alboran Sea and adjacent waters written by Hidalgo, M. (ed.) and published by Food & Agriculture Org. [Author] [Author]. This book was released on 2024-06-27 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt: The boundaries of commercially exploited stocks in the Alboran Sea in the western Mediterranean have long been the object of scientific debate, due to gaps in knowledge of the spatial structure and connectivity of fish populations in the area. In an effort to resolve some of these questions, the “Transboundary population structure of sardine, European hake and blackspot seabream in the Alboran Sea and adjacent waters” (Transboran) research project, a collaborative project led jointly by FAO-Copemed II and the GFCM, ran for three years between 2017 and 2021. It aimed to describe the spatial structure of sardine (Sardina pilchardus), European hake (Merluccius merluccius) and blackspot seabream (Pagellus bogaraveo) populations in the western Mediterranean to help inform the best possible management advice for these species. Eight research institutions from five partner countries (Algeria, Italy, Morocco, Spain and Tunisia) joined forces on a comprehensive and multidisciplinary approach covering different techniques for stock identification and complemented by numerical modelling of hydrodynamic dispersal, spatial information on the fleets targeting the studied species, and field data from an ichthyoplankton survey. All of these disciplines provided information at various contrasting scales to take into account life cycle, demographic and evolutionary processes. This report presents the main findings of the Transboran project, which show differentiation of sardine and European hake stocks between the northern and southern Alboran Sea and reveal a homogenous population structure for blackspot seabream across the study area. The results therefore support maintaining the current configuration of stocks within their respective geographical subareas (GSAs) for assessment and management purposes.

Download or read book The Geology of Iberia A Geodynamic Approach written by Cecilio Quesada and published by Springer. This book was released on 2019-06-28 with total page 568 pages. Available in PDF, EPUB and Kindle. Book excerpt: Taking a new global approach, this unique book provides an updated review of the geology of Iberia and its continental margins from a geodynamic perspective. Owing to its location close to successive plate margins, Iberia has played a pivotal role in the geodynamic evolution of the Gondwanan, Rheic, Pangea, Tethys s.l. and Eurasian plates over the last 600 Ma of Earth's history. The geological record starts with the amalgamation of Gondwana in the Neoproterozoic succeeded by the rifting and spreading of the Rheic ocean; its demise, which led to the amalgamation of Pangea in the late Paleozoic; the rifting and spreading of several arms of the Neotethys ocean in the Mesozoic Era and their ongoing closure, which was responsible for the Alpine orogeny. The significant advances in the last 20 years have attracted international research interest in the geology of the Iberian Peninsula. This volume presents the most comprehensive, and updated description of the Alpine cycle in Iberia. This volume focuses in the different geological events during the Alpine orogeny as well as the lithological succession . This book is of interest not only for scientists of Portugal and Spain but also for geoscientists searching for analogies for oil and gas as well as tourists visiting the main mountain ridges of Iberia such as the Pyrenees.

Download or read book Sedimentary Environments Offshore Norway Palaeozoic to Recent written by O.J. Martinsen and published by Elsevier. This book was released on 2001-06-06 with total page 502 pages. Available in PDF, EPUB and Kindle. Book excerpt: Required reading for geologists working in the offshore areas, Volume 10 continues the series from the Norwegian Petroleum Society. This work provides an up-to-date review of the late Palaeozoic to present sedimentary history of the Norwegian offshore areas in the North Sea and Mid-Norway basins. Case studies, overview articles and analogue examples from adjacent areas such as Greenland and Denmark, present new ideas on the development of the Norwegian margin from the Carboniferous through the Mesozoic and Cenozoic.In particular, new evidence and interpretations are presented on well-known major reservoir-bearing successions such as the Statfjord Formation and Dunlin Group in the Northern North Sea, and the Åre and the Tilje Formations in the Mid-Norway area. Furthermore, the Upper Jurassic succession in the Haltenbanken area is described, giving new evidence on the interplay between extensional tectonics and sedimentation during the second major rift phase in the area.The Cretaceous and Cenozoic periods are treated extensively, showing their importance as overall deep water sedimentary systems with proven and potential reservoir rocks, such as in the Ormen Lange Field, and for causing burial of Jurassic rocks to advantageous depths for hydrocarbon generation. The Recent sedimentary history of the Norwegian margin is treated with examples of the glacial history and giant submarine slides which understanding is vital for the placement of offshore installations.The book is organised based on geologic time, from Palaeozoic through Mesozoic to Cenozoic examples. It includes a set of palaeogeographic maps from the Carboniferous through to the Cenozoic. In addition, there are numerous examples of core photographs, well log data, correlation panels and seismic as well as outcrop photographs and logs from the analogue examples. Comprehensive reference and keyword lists are also included.