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Sediment Flux In A Fiord Shelf Transect Of An Ice Dominated Continental Margin
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Book Synopsis Sediment Flux in a Fiord/Shelf Transect of an Ice-Dominated Continental Margin by : John T. Andrews
Download or read book Sediment Flux in a Fiord/Shelf Transect of an Ice-Dominated Continental Margin written by John T. Andrews and published by . This book was released on 1987 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt: Piston cores from fiords along the eastern margin of Baffin Island, N>W>T> are being studied in order to compute variations in sediment flux on time scales of decades to thousands of years. Radiocarbon dates indicate that the sedimentation rates in outer basins range, on average, between 20-50cm/THAT'S NUMBER: 1 (NOT ALPHA)ka. The cores extend back to ca. 10 ka, or earlier, and provide possible analogs for conditions around the present day Greenland Ice Sheet. Grain size, grain shape and mineralogical studies are being carried out in order to evaluate down fiord variations in sediment source and sedimentation processes.
Book Synopsis Sediment Flux in a Fiord/Shelf Transect by : John T. Andrews
Download or read book Sediment Flux in a Fiord/Shelf Transect written by John T. Andrews and published by . This book was released on 1988 with total page 59 pages. Available in PDF, EPUB and Kindle. Book excerpt: In Alaskan fiords, sedimentation rates are high; during a glacial advance fiord-basin sediments are transported to the ice front to form a shoal which reduces the calving rate. Thus, during successive glacial cycles sediment is initially stored and then removed from fiord basins. In the fiords of eastern Baffin Island sedimentation rates are, and were, much lower (1000 Kg/Sq m ka), and fiord-basin fills may span several glacial cycles. This hypothesis is in keeping with the relatively low sedimentation rates on the adjacent shelf (50 to 500 Kg/sq m ka) and deep-sea plain (
Book Synopsis Technical Reports Awareness Circular : TRAC. by :
Download or read book Technical Reports Awareness Circular : TRAC. written by and published by . This book was released on 1988-02 with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Sediment Flux, East Greenland Margin by :
Download or read book Sediment Flux, East Greenland Margin written by and published by . This book was released on 1991 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt: We investigated sediment flux across an ice-dominated, high latitude continental margin, using cores from the East Greenland Shelf (ca. 68 deg N). Density, weight percentages of the various sediment components, and sediment/age relations (AMS C- 14 dates) were investigated from cores collected 1988 and 1990. High-resolution DTS Huntec surveys indicated 10-20 m of acoustically transparent sediment. Maximum core length was 3 m and most of the gravity cores were between 1-2 m. The radiocarbon assays show that basal core sediments date between ca. 9,000 and 14,500 BP. The acoustic characteristics, the low dry volume densities (ca. 600 kg/m3 and the faunal and floral assemblages suggest ice-distal conditions between ca. 14,500 and the present. Net sediment flux in the Kangerdlugssuaq Trough during the last 14,500 years has been low; this might be explained by either (1) cold-based glaciological conditions of the East Greenland ice sheet; and/or (2) efficient sediment trap(s) lying along the inner shelf/fjords of East Greenland.
Book Synopsis Geology and Geophysics Program Summary for FY ... by :
Download or read book Geology and Geophysics Program Summary for FY ... written by and published by . This book was released on 1990 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Aquatic Sciences and Fisheries Abstracts by :
Download or read book Aquatic Sciences and Fisheries Abstracts written by and published by . This book was released on 1989 with total page 804 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Material Fluxes on the Surface of the Earth by : National Research Council
Download or read book Material Fluxes on the Surface of the Earth written by National Research Council and published by National Academies Press. This book was released on 1994-02-01 with total page 185 pages. Available in PDF, EPUB and Kindle. Book excerpt: Understanding the ebb and flow of materials on the earth's surface is vital to comprehending environmental change. We need to differentiate between those that represent a progression of natural events from those that might be human induced. The latter can be managed by changing policies; the former probably cannot. This volume presents what researchers know and do not know about the base (or natural) level of surficial fluxes and their dynamics. Leading experts in the field offer a historical perspective on geofluxes and discuss the cycles of materials on the earth's surface, from weathering processes to the movement of material through the river system and oceans to their deposition. The committee sets research directions in five areas: shallow-water studies, mapping, rates of change, sample dating, andâ€"most criticalâ€"understanding whether human influence can exceed the natural variability in geoflux processes. This volume will be important reading for geophysical scientists, researchers, faculty, and students, as well as environmental policymakers.
Book Synopsis Sediment Routing Systems by : Philip A. Allen
Download or read book Sediment Routing Systems written by Philip A. Allen and published by Cambridge University Press. This book was released on 2017-09-14 with total page 423 pages. Available in PDF, EPUB and Kindle. Book excerpt: This cutting-edge summary combines ideas from several sub-disciplines to provide an understanding of sediment routing systems and Earth surface dynamics.
Book Synopsis Glaciated Margins by : D.P. Le Heron
Download or read book Glaciated Margins written by D.P. Le Heron and published by Geological Society of London. This book was released on 2019-04-08 with total page 289 pages. Available in PDF, EPUB and Kindle. Book excerpt: Understanding the sedimentary and geophysical archive of glaciated margins is a complex task that requires integration and analysis of disparate sedimentological and geophysical data. Their analysis is vital for understanding the dynamics of past ice sheets and how they interact with their neighbouring marine basins, on timescales that cannot be captured by observations of the cryosphere today. As resources, sediments deposited on the inner margins of glaciated shelves also exhibit resource potential where more sand-dominated systems occur, acting as reservoirs for both hydrocarbons and water. This book surveys the full gamut of glaciated margins, from deep time (Neoproterozoic, Ordovician and Carboniferous–Permian) to modern high-latitude margins in Canada and Antarctica. This collection of papers is the first attempt to deliberately do this, allowing not only the similarities and differences between modern and ancient glaciated margins to be explored, but also the wide spectrum of their mechanisms of investigation to be probed. Together, these papers offer a high-resolution, spatially and temporally diverse blueprint of the depositional processes, ice sheet dynamics, and basin architectures of the world’s former glaciated margins; a vital resource in advancing understanding of our present and future marine-terminating ice sheet margins.
Book Synopsis Government Reports Announcements & Index by :
Download or read book Government Reports Announcements & Index written by and published by . This book was released on 1988 with total page 1226 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Geology of Siliciclastic Shelf Seas by : M. De Batist
Download or read book Geology of Siliciclastic Shelf Seas written by M. De Batist and published by Geological Society of London. This book was released on 1996 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Glacier-influenced Sedimentation on High-latitude Continental Margins by : J. A. Dowdeswell
Download or read book Glacier-influenced Sedimentation on High-latitude Continental Margins written by J. A. Dowdeswell and published by Geological Society of London. This book was released on 2002 with total page 398 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book examines the process and patterns of glacier-influenced sedimentation on high-latitude continental margins and the geophysical and geological signatures of the resulting sediments and landforms. It contains a range of papers concerning modern and glacially-influenced sedimentation in high-latitude areas from both hemispheres, many of which discuss the relationship between glacier dynamics and the sediments and landforms preserved in the glacimarine environment.
Book Synopsis Host Bibliographic Record for Boundwith Item Barcode 30112050443578 and Others by :
Download or read book Host Bibliographic Record for Boundwith Item Barcode 30112050443578 and Others written by and published by . This book was released on 2013 with total page 476 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Oceanic Abstracts written by and published by . This book was released on 1997-04 with total page 900 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Continental Margin Record of Little Ice Age to Decadal Climate-induced Changes in Sediment Transport and Delivery in the Gulf of Alaska by : William F. Vienne
Download or read book A Continental Margin Record of Little Ice Age to Decadal Climate-induced Changes in Sediment Transport and Delivery in the Gulf of Alaska written by William F. Vienne and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Comparisons in this study of sediment properties on the GOA shelf with time-series of climate data have led to the conclusion that decadal to centennial climate change plays a significant role in the development of continental shelf strata along the GOA margin.
Book Synopsis Bibliography on Cold Regions Science and Technology by :
Download or read book Bibliography on Cold Regions Science and Technology written by and published by . This book was released on 1994 with total page 410 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The New Concepts of Continental Margin Sedimentation by : Daniel J. Stanley
Download or read book The New Concepts of Continental Margin Sedimentation written by Daniel J. Stanley and published by . This book was released on 1969 with total page 490 pages. Available in PDF, EPUB and Kindle. Book excerpt:
