Eocene Stratigraphy of the North Sea Basin

Eocene Stratigraphy of the North Sea Basin PDF Author: D. C. Mudge
Publisher:
ISBN:
Category :
Languages : en
Pages :

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Eocene Stratigraphy of the North Sea Basin

Eocene Stratigraphy of the North Sea Basin PDF Author: D. C. Mudge
Publisher:
ISBN:
Category :
Languages : en
Pages :

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Book Description


Eocene Sequence Stratigraphy of the North Sea Basin

Eocene Sequence Stratigraphy of the North Sea Basin PDF Author: Benjamin John Sloan
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 454

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Eocene elastic sediments of the central and northern North Sea comprise five stratigraphic sequences. Oldest is the sand-dominated, basin-centered Frigg sequence, which includes submarine fan and apron deposits on the Beryl Terrace and in the Central and Viking Grabens. Middle Eocene Lower and Upper Hordaland sequences are mixed mud and sand units which prograded from the East Shetland Platform and Moray Firth and include discrete slope aprons and basin-center fans. The thin, regressive sand-prone Belton sequence marks the top of the Eocene in most of the basin, except on the eastern margin of the Shetland Platform, where the foreshelf pro grading prism of Thet sequence sandstones and siltstones was deposited. Foraminiferal biofacies analysis of a well on the Beryl Terrace indicates that four or the five sequence boundaries coincide with significant changes in the benthic and planktic foraminiferal assemblages. Cluster analysis confirms the distinct biofacies characterizing each sequence, an impoverished coarsely agglutinated fauna with radiolaria in the Frigg sequence, normal abundances or coarsely agglutinated forms in the Hordaland units, and "Velasco"-type deep-water calcareous benthics in the Upper Eocene, including planktic foraminifera in the Belton. Paleoenvironmental analysis or these biofacies shows an overall Eocene shallowing from lower slope to outer shelf. Subsidence analysis using the derived water depths indicates that the Eocene was part or a major phase of subsidence which began in the Late Paleocene and abated by Oligocene time. Overall, the Eocene constitutes a tectonosequence, or stratigraphic sequence attributable to tectonic influences. Eocene circum-North Sea tectonics include Atlantic domain seafloor-spreading to the north and west and the encroaching Alpine compression from the south. The base Eocene, top Frigg, and top Eocene all correlate with changes in seafloor spreading thought to have contributed, through intraplate stresses, to the stress regime and differential topography of the source area and basin. Latest Eocene eustatic lowering, climatic cooling, and Arctic water circulation are thought to have influenced the Thet sequence.

Mesozoic and Cenozoic Sequence Stratigraphy of European Basins

Mesozoic and Cenozoic Sequence Stratigraphy of European Basins PDF Author: Pierre Charles de Graciansky
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 818

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Book Description
This project was designed to build a documented chronostratigraphic and outcrop record of depositional sequences calibrated across European basins. Data on standard stages, magnetostratigraphy, and geochronology integrated with high resolution biostratigraphy calibrate the stratigraphic position of depositional sequence boundaries. Higher order eustatic sequences show a significant increase in the number identified. A good portion of the European Mesozoic and Cenozoic succession is set in the sequence stratigraphic context with a stratigraphic record of its bonding surfaces.

A revised correlation of Tertiary rocks in the British Isles and adjacent areas of NW Europe

A revised correlation of Tertiary rocks in the British Isles and adjacent areas of NW Europe PDF Author: C. King
Publisher: Geological Society of London
ISBN: 1862397287
Category : Science
Languages : en
Pages : 708

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Book Description
This Special Report comprehensively describes the stratigraphy and correlation of the Tertiary (Paleogene–Neogene) rocks of NW Europe and the adjacent Atlantic Ocean and is the summation of fifty years of research on Tertiary sediments by Chris King. His book is essential reading for all geologists who deal with Tertiary rocks across NW Europe, including those in the petroleum industry and geotechnical services as well as academic stratigraphers and palaeontologists. Introductory sections on chronostratigraphy, biostratigraphy and other methods of dating and correlation are followed by a regional summary of Tertiary sedimentary basins and their framework and an introduction to Tertiary igneous rocks. The third and largest segment comprises the regional stratigraphic summaries. Regions covered are the North Sea Basin, onshore areas of southern England and the eastern English Channel area, the North Atlantic margins (including non-marine basins in the Irish Sea and elsewhere) and the Paleogene igneous rocks of Scotland.

Late Paleocene-early Eocene Climatic and Biotic Events in the Marine and Terrestrial Records

Late Paleocene-early Eocene Climatic and Biotic Events in the Marine and Terrestrial Records PDF Author: Marie-Pierre Aubry
Publisher: Columbia University Press
ISBN: 0231102380
Category : Paleoclimatology
Languages : en
Pages : 542

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Book Description
This book is a comprehensive collection of the best scholarship available on the transition between the Paleocene and Eocene epochs--when the earth experienced the warmest climatic episode of the Cenozoic era. These 21 contributions detail the major turnover among marine and terrestrial organisms that resulted from sudden global warming.

The Geology of the Central North Sea

The Geology of the Central North Sea PDF Author: R. W. Gatliff
Publisher:
ISBN:
Category : Geological surveys
Languages : en
Pages : 136

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Book Description
The area covered by this report extends from the eastern coast of Scotland and northern England to the international median line in the North Sea where the UK sector joins Norwegian, Danish, German and Dutch waters. From south to north, the area extends from 55 degrees N to 58 degrees N, but it reaches only as far as 57 degrees 30'N to the west of 0 degrees. This report area includes much of the Central Graben and its junction with the Viking Graben and Outer Moray Firth Basin; it contains several important oilfields, the largest of which is Forties.

Petroleum Geology of the North Sea

Petroleum Geology of the North Sea PDF Author: K. W. Glennie
Publisher: John Wiley & Sons
ISBN: 1444313401
Category : Science
Languages : en
Pages : 656

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Book Description
Since the 3rd edition of this publication, emphasis within the petroleum industry has shifted from exploration to appraisal and development of existing hydrocarbon resources. This change is reflected in this new 4th edition, which has been significantly expanded to accomodate additional material. The centrepiece of the book, however, remains a series of descriptions, in stratigraphic order, of the depositional history and hydrocarbon related rock units of the North Sea.

Eocene-Oligocene Climatic and Biotic Evolution

Eocene-Oligocene Climatic and Biotic Evolution PDF Author: Donald R. Prothero
Publisher: Princeton University Press
ISBN: 1400862922
Category : Science
Languages : en
Pages : 583

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Book Description
The transition from the Eocene to the Oligocene epochs was the most significant event in earth history since the extinction of dinosaurs. As the first Antarctic ice sheets appeared, major extinctions and faunal turnovers took place on the land and in the sea, eliminating forms adapted to a tropical world and replacing them with the ancestors of most of our modern animal and plant life. Through a detailed study of climatic conditions and of organisms buried in Eocene-Oligocene sediments, this volume shows that the separation of Antarctica from Australia was a critical factor in changing oceanic circulation and ultimately world climate. In this book forty-eight leading scientists examine the full range of Eocene and Oligocene phenomena. Their articles cover nearly every major group of organisms in the ocean and on land and include evidence from paleontology, stable isotopes, sedimentology, seismology, and computer climatic modeling. The volume concludes with an update of the geochronologic framework of the late Paleogene. Originally published in 1992. The Princeton Legacy Library uses the latest print-on-demand technology to again make available previously out-of-print books from the distinguished backlist of Princeton University Press. These editions preserve the original texts of these important books while presenting them in durable paperback and hardcover editions. The goal of the Princeton Legacy Library is to vastly increase access to the rich scholarly heritage found in the thousands of books published by Princeton University Press since its founding in 1905.

The South China Sea

The South China Sea PDF Author: Pinxian Wang
Publisher: Springer Science & Business Media
ISBN: 140209745X
Category : Science
Languages : en
Pages : 506

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Book Description
Pinxian Wang and Qianyu Li The South China Sea (SCS) (Fig. 1. 1) offers a special attraction for Earth scientists world-wide because of its location and its well-preserved hemipelagic sediments. As the largest one of the marginal seas separating Asia from the Paci?c, the largest continent from the largest ocean, the SCS functions as a focal point in land-sea int- actions of the Earth system. Climatically, the SCS is located between the Western Paci?c Warm Pool, the centre of global heating at the sea level, and the Tibetan Plateau, the centre of heating at an altitude of 5,000m. Geomorphologically, the SCS lies to the east of the highest peak on earth, Zhumulangma or Everest in the Himalayas (8,848m elevation) and to the west of the deepest trench in the ocean, Philippine Trench (10,497m water depth) (Wang P. 2004). Biogeographically, the SCS belongs to the so-called “East Indies Triangle” where modern marine and terrestrial biodiversity reaches a global maximum (Briggs 1999). Among the major marginal sea basins from the west Paci?c, the SCS presents some of the best conditions for accumulating complete paleoclimatic records in its hemipelagic deposits. These records are favorable for high-resolution pa- oceanographic studies because of high sedimentation rates and good carbonate preservation. It may not be merely a coincidence that two cores from the southern 14 SCS were among the ?rst several cores in the world ocean used by AMS C dating for high-resolution stratigraphy (Andree et al. 1986; Broecker et al. 1988).

Holocene Marine Sedimentation in the North Sea Basin

Holocene Marine Sedimentation in the North Sea Basin PDF Author: S. D. Nio
Publisher: John Wiley & Sons
ISBN: 1444303767
Category : Science
Languages : en
Pages : 525

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Book Description
A special publication of the International Association of Sedimentologists This comprehensive scientific book of more than 500 pages features chapters by various authors. Holocene Marine Sedimentation in the North Sea Basin address topics that include: ripple, megaripple and sandwave bedforms in South Wales; shoreline development in St Andrews Bay, Scotland; and the origin of ridges off the Zeeland coast. Highlighted research includes: measurements of suspended sediment concentrations made at stations on a sandy intertidal zone in South Wales, as well as another study of two cores from the southern side of the Norwegian Channel concerning geotechnical properties, texture, sedimentary structures and mineralogical composition.