Author: J.B. ANDERSONPublisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Glacial and glacial marine sediments of the Antarctic continental shelf
Author: J.B. ANDERSONGlacial-marine Sedimentation
Author: John B. AndersonPublisher:
ISBN:
Category : Science
Languages : en
Pages : 144
Book Description
Glacial Marine Sedimentation
Author: John B. AndersonPublisher: Geological Society of America
ISBN: 9780813722610
Category : Science
Languages : en
Pages : 244
Book Description
The papers in this collection are based on a symposium held at the 1988 annual meeting of the Geological Society of America, with the objective of identifying sedimentary criteria and facies models that can be used to characterize the glacial-climate setting of ancient sedimentary sequences. Includes papers on Antarctica, Alaska, and Ellesmere Island, and a brief literature review.
Glacial-Marine Sedimentation
Author: Bruce F. MolniaPublisher: Springer Science & Business Media
ISBN: 1461337933
Category : Science
Languages : en
Pages : 843
Book Description
This volume of 18 papers describes the glacial-marine sedimentary environment in a variety of temporal and spatial settings. The volume's primary emphasis is the characteri zation of Quaternary glacial-marine sedimentation to show (1) the significant differences that exist between glacial marine environments in different geographic settings and (2) their resulting glacial-marine deposits and facies. Addi tionally, papers describing ancient glacial-marine environ ments are also presented to illustrate lithified analogs of the Quaternary deposits. With the Doctrine of Uniformitarianism in mind (the present is the key to the past), it is hoped that this volume will serve to expand the horizons of geologists working on the rock record, especially those whose primary criteria for recognition of ancient glacial-marine environments is the presence of dropstones in a finer-grained matrix. As the papers presented here show, diamictite is only one of many types of deposits that form in the glacial-marine sedimentary environment. Papers presented in this volume examine the Quaternary glacia1-marine sedimentary picture in subarctic Alaska, Antarctica, the Arctic Ocean, the Kane Basin, Baffin Island, the Puget-Fraser Lowland of Washington and British Columbia, and the North Atlantic Ocean. Ancient glacia1-marine depos its described are the Neogene Yakataga Formation of southern Alaska, the Late Paleozoic Dwyka Formation of the Karoo Basin of South Africa, and the Precambrian Mineral Fork Formation of Utah. For continuity, a paper summar1z1ng the temporal and spatial occurrences of glacial-marine deposits is also presented.
Antarctic Marine Geology
Author: J. B. AndersonPublisher: Cambridge University Press
ISBN: 9780521593175
Category : History
Languages : en
Pages : 302
Book Description
A comprehensive single-authored book to introduce students and researchers to the marine geology of the Antarctic.
Glacial Marine Sediments and Sedimentation
Author: John T. AndrewsPublisher:
ISBN:
Category : Science
Languages : en
Pages : 248
Book Description
Contains 728 references. Introduction deals with terminology, distinguishing characteristics and models of glacial marine sedimentation.
Contribution - Sedimentological Research Laboratory
Author: Florida State University. Sedimentology Research LaboratoryPublisher:
ISBN:
Category : Marine sediments
Languages : en
Pages : 232
Book Description
Glaciated Continental Margins
Author: Thomas A. DaviesPublisher: Springer Science & Business Media
ISBN: 9401158207
Category : Science
Languages : en
Pages : 447
Book Description
Late Cenozoic glaciation directly affected sedimentation on more than half the Earth's continental shelves. Ice continues to be a dominant influence on sedimentation around Greenland and Antarctica, and on the shelves facing the Arctic Ocean. The features of these shelves include true glacimarine features, i.e. those found in a marine environment in proximityto, or strongly under the influence of, ice, such as iceberg scours and pits, ice gouges and incisions, subglacial outwash deposits, and diamictons resulting from ice rafting. Also seen, because large areas of the shelves were exposed during the Pleistocene lowering of sea level, are terrestrial glacial and periglacial features, e.g. fluvial outwash valleys and associated deposits, tunnel valleys, drumlin fields and lodgement till, which have subsequently been submerged and modified by marine influences. Glaciated Continental Margins: An Atlas of Acoustic Images illustrates the complexity of features found in glaciated and formerly glaciated marine environments. The volume was assembled by an international Editorial Committee, led by Thomas A. Davies (University of Texas), from records gathered in the course of recent research and contributed by members of the scientific community from around the world. These include seismic sections, side-scan maps, and 3-D seismic data, supplemented in some cases by bottom photographs and core data, with accompanying text. The work is scientists at 40 institutions in 10 countries is represented. This book will be an invaluable resource for students, Quaternary scientists, glaciologists, marine geologists and geophysicists, geotechnical engineers, and surveyors teachers working in universities, research institutions and government agencies with interests in polar and subpolar regions, as well as those in industries with offshore interests.
The Record of Global Change in Circum-Antarctic Marine Sediments
Author: P. F. BarkerPublisher:
ISBN:
Category :
Languages : en
Pages : 7
Book Description
Sediment drilling, using rigs located on sea ice inshore, and Ocean Drilling Program facilities farther offshore, have described the stepwise cooling of Antarctica through the Cenozoic, setting the scene for more detailed studies of short-period, recent change. Such studies will not be easy. The virtual absence of carbonate sediments and the strength of bottom currents in some regions are fundamental limitations. Nevertheless, Antarctic ocean sediments contain a record of global change which complements the record of the ice sheet, and extends it back in time. Pelagic and hemipelagic sediments of the ocean basins record changes in primary productivity, dissolution, sea ice extent and the strength of deep ocean circulation, and in the volume of the main circum-Antarctic water masses. Prograded sediments of the Antarctic continental shelf and slope contain a record of glacial/interglacial changes in ice sheet volume. Modern piston-coring techniques are capable of revealing changes over the last glacial cycle in some detail, in suitably expanded sections. At lower sediment accumulation rates, a less detailed but longer record can be obtained. It can already be shown that, at and around glacial maximum, (a) grounded ice sheets extended to the Antarctic continental shelf edge, (b) the marginal sea ice zone lay up to 5 deg farther north, and (c) Weddell Sea Bottom Water flow was far slower than at present.
Glacial Marine Sedimentation, Ross Sea, Antarctica
Author: Terry Michael ChrissPublisher:
ISBN:
Category : Marine sediments
Languages : en
Pages : 230
Book Description