Geology of Siliciclastic Shelf Seas

Author: M. De Batist

Publisher: Geological Society of London

ISBN: 9781897799710

Category: Science

Page: 345

View: 5324

This is a presentation of some of the recent research activities and developments in the field of continental shelf geology. The book is organized around four major themes: stratigraphy and sedimentary geology of siliciclastic shelves; modern siliciclastic shelves - architecture, sea level, tectonics and sediment supply; nearshore and coastal environments; and new techniques in continental shelf research.

Submarine Slope Systems

Processes and Products

Author: David Mark Hodgson,Stephen S. Flint

Publisher: Geological Society of London

ISBN: 9781862391772

Category: Technology & Engineering

Page: 225

View: 1784

Submarine slopes provide the critical link between shallow-water and deep-water sedimentary environments. They accumulate a sensitive record of sediment supply, accommodation creation/destruction, and tectonic processes during basin filling. There is a complex stratigraphic response to the interplay between parameters that control the evolution of submarine slope systems, e.g. slope gradient, topographic complexity, sediment flux and calibre, base-level change, tectonic setting, and post-depositional sediment remobilization processes. The increased understanding of submarine slope systems has been driven partly by the discovery of large hydrocarbon fields in morphologically complex slope settings, such as the Gulf of Mexico and offshore West Africa, and has led to detailed case studies and improved generic models for their evolution. This volume brings together research papers from modern, outcrop and subsurface settings to highlight these recent advances in understanding of the stratigraphic evolution of submarine slope systems.

Continental Shelves of the World

Their Evolution During the Last Glacio-Eustatic Cycle

Author: F.L. Chiocci ,A.R. Chivas

Publisher: Geological Society of London

ISBN: 1862396868

Category: Science

Page: 343

View: 2011

The world's continental shelves are the sites of vast resources of food, energy and minerals, the exploitation of which is continuously increasing. Fluctuating global sea levels throughout the Quaternary period produced multiple transgressive and regressive cycles that profoundly affected and shaped these shelves. The complex interactions among climate, sea level, tectonics, oceanography and sediment input have formed distinctive sediment packages on each shelf and provide a guide to the interpretation of older shelf sequences throughout the geological record. This Memoir compiles studies on 23 selected shelves from all the continents, focusing on their evolution and examining the patterns of sedimentation during the past approximately 125 000 years. In addition to providing basic background information for each area, the chapters consider specific aspects of continental shelf research, from seismic stratigraphy to geomorphology, from palaeoceanography to palaeo sea-level reconstruction and from palaeontology to geochemistry.

Sedimentology of Paralic Reservoirs

Recent Advances

Author: G.J. Hampson,A.D. Reynolds,B. Kostic,M.R. Wells

Publisher: Geological Society of London

ISBN: 1786202743

Category: Science

Page: 432

View: 3827

Paralic reservoirs reflect a range of depositional environments including deltas, shoreline–shelf systems and estuaries. They provide the backbone of production in many mature basins, and contribute significantly to global conventional hydrocarbon production. However, the range of environments, together with relative sea-level and sediment supply changes, result in significant variability in their stratigraphic architecture and sedimentological heterogeneity, which translates into complex patterns of reservoir distribution and production that are challenging to predict, optimize and manage. This volume presents new research and developments in established approaches to the exploration and production of paralic reservoirs. The 13 papers in the volume are grouped into three thematic sections, which address: the sedimentological characterization of paralic reservoirs using subsurface data; lithological heterogeneity in paralic depositional systems arising from the influence of tidal currents; and paralic reservoir analogue studies of modern sediments and ancient outcrops. The volume demonstrates that heterogeneity in paralic reservoirs is increasingly well understood at all scales, but highlights gaps in our knowledge and areas of current research.

From Depositional Systems to Sedimentary Successions on the Norwegian Continental Margin

Author: Allard W. Martinius,R. Ravnås,J. A. Howell,R. J. Steel,J. P. Wonham

Publisher: John Wiley & Sons

ISBN: 1118920457

Category: Science

Page: 712

View: 725

The Norwegian Continental Shelf (NCS), focus of this special publication, is a prolific hydrocarbon region and both exploration and production activity remains high to this day with a positive production outlook. A key element today and in the future is to couple technological developments to improving our understanding of specific geological situations. The theme of the publication reflects the immense efforts made by all industry operators and their academic partners on the NCS to understand in detail the structural setting, sedimentology and stratigraphy of the hydrocarbon bearing units and their source and seal. The papers cover a wide spectrum of depositional environments ranging from alluvial fans to deepwater fans, in almost every climate type from arid through humid to glacial, and in a variety of tectonic settings. Special attention is given to the integration of both analogue studies and process-based models with the insights gained from extensive subsurface datasets.

Isolated Shallow Marine Sand Bodies

Sequence Stratigraphic Analysis and Sedimentologic Interpretation

Author: Katherine M. Bergman,John W. Snedden

Publisher: Sepm Society for Sedimentary

ISBN: N.A

Category: Basins (Geology)

Page: 362

View: 6854

Isolated shallow marine sand bodies are significant hydrocarbon reservoirs and understanding sand body genesis and geometry is critical to successful exploration and exploitation of these deposits. Advances in sequence stratigraphy have rekindled and refocused the discussions surrounding these important reservoirs. This volume stems from a research conference that brought together the proponents of the differing interpetation sto discuss facts and principles as they relate to isolated shallow marine sand bodies, using the controversial Lower Campanian Shannon Sandstone as the focus for discussion.

Transactions

Author: Gulf Coast Association of Geological Societies

Publisher: N.A

ISBN: N.A

Category: Geology

Page: N.A

View: 4612


Principles of Sedimentology and Stratigraphy

Author: Sam Boggs

Publisher: Prentice Hall

ISBN: N.A

Category: Science

Page: 662

View: 9837

A concise treatment of the fundamental principles of sedimentology and stratigraphy, featuring the important physical, chemical, biological and stratigraphic characteristics of sedimentary rocks. Emphasized are the ways in which the study of sedimentary rocks is used to interpret depositional environments, changes in ancient sea level, and other intriguing aspects of Earth history. Topics include the origin and transport of sedimentary materials; physical properties of sedimentary rocks; composition, classification and diagenesis of sedimentary rocks and principles of stratigraphy and basin analysis. For individuals interested in one text providing comprehensive coverage of both sedimentology and stratigraphy.

Late Quaternary Stratigraphic Evolution of the Northern Gulf of Mexico Margin

Author: John B. Anderson,Richard H. Fillon

Publisher: Sepm Society for Sedimentary

ISBN: N.A

Category: History

Page: 311

View: 3754

Late Quaternary stratigraphic evolution of the north Gulf of Mexico margin : a synthesis -- High-resolution stratigraphy of a sandy, ramp-type margin, Apalachicola, Florida -- Late Quaternary stratigraphic evolution of the Alabama-west Florida outher continental shelf -- late Quaternary geology of the northeastern Gulf of Mexico shelf : sedimentology, depositional history, and ancient analogs of a major shelf sand sheet of teh modern transgressive systems tract -- Sequence stratigraphy of a continental margin subjected to low-energy and low-sediment-supply environmental boundary conditions : late Pleistocene-Holocene deposition offshore Alabama -- Late Quaternary deposition and paleobathymetry at the shelf-slope transition, ancestral Mobile River delta complex, northeastern Gulf of Mexico -- Depositional architecture of the Lagniappe Delta : sediment characteristics, timing of depositional events, and temporal relations with adjacent shelf-edge deltas -- Foraminiferal biostratigraphy and paleoenvironments of the Pleistocene Lagniappe Delta and related section, northeastern Gulf of Mexico -- Late Quaternary stratigraphic evolution of the west Lousiana-east Texas continental shelf -- Late Quaternary Brazos and Colorado deltas, offshore Texas, their evolution and the factors that controlled their deposition -- Late Quaternary evolution of the wave-storm-dominated Central Texas Shelf -- Late Quaternary evolution of the Rio Grande Delta.

Island Britain

a Quaternary perspective

Author: R. C. Preece

Publisher: Geological Society Pub House

ISBN: 9781897799406

Category: Science

Page: 274

View: 4405


River Deltas

Concepts, Models, and Examples

Author: Liviu Giosan,Janok P. Bhattacharya

Publisher: N.A

ISBN: N.A

Category: Alluvial fans

Page: 502

View: 8190

Deltas are amongst the most environmentally and economically important coastal sedimentary environments. Studies of deltas lag behind research in both fluvial and deep-water depositional systems, as well as more geomorphologically oriented land studies. This knowledge lag reflects both a reorientation of the the petroleum industry in the last two decades toward deep-water systems, as well as the difficulty of working across the shoreline with the traditional tools used for oceanographic or land-based work. However, deltaic studies are experiencing a renewed focus, because of their global importance in environmental and other societal concerns. This volume stems from a special session, "Deltas: Old and New," held at the Annual Geological Society of America conference in October 2002, that was convened to highlight these new directions in deltaic research.---Publisher's description.

Continent-Ocean Interactions Within East Asian Marginal Seas

Author: Peter Clift,Wolfgang Kuhnt,Dennis E. Hayes,Pinxian Wang

Publisher: American Geophysical Union

ISBN: N.A

Category: Science

Page: 337

View: 4297

Published by the American Geophysical Union as part of the Geophysical Monograph Series, Volume 149. The study of the complex interactions between continents and oceans has become a leading area for 21st century earth cience. In this volume, continent—ocean interactions in tectonics, arc-continent collision, sedimentology, and climatic volution within the East Asian Marginal Seas take precedence. Links between oceanic and continental climate, the sedimentology of coastal and shelf areas, and the links between deformation of continental and oceanic lithosphere are also discussed. As an introduction to the science presented throughout the volume, Wang discusses many of the possible interactions between the tectonic evolution of Asia and both regional and global climate. He speculates that uplift of central Asia in the Pliocene may have triggered the formation of many of the major rivers that drain north through Siberia into the Arctic Ocean. He also argues that it is the delivery of this fresh water that allows the formation of sea ice in that area and triggered the start of Northern Hemispheric glaciation. This may be one of the most dramatic ways in which Asia has shaped the Earth's climate and represents an alternative to the other competing models that have previously emphasized the role of oceanic gateway closure in Central America. Moreover, his proposal for major uplift of at least part of Tibet and Mongolia as late as the Pliocene, based on the history of drainage evolution in Siberia, supports recent data from the southern Tarim Basin and from the Qilian Shan and Qaidam and Jiuxi Basins in northeast Tibet that indicate surface uplift at that time. Constraining the timing and patterns of Tibetan surface uplift is crucial to testing competing models for strain accommodation in Asia following India—Asia collision.