Glaciated Margins

Glaciated Margins PDF

Author: D.P. Le Heron

Publisher: Geological Society of London

Published: 2019-04-08

Total Pages: 289

ISBN-13: 1786203979

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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.

Glacier-influenced Sedimentation on High-latitude Continental Margins

Glacier-influenced Sedimentation on High-latitude Continental Margins PDF

Author: J. A. Dowdeswell

Publisher: Geological Society of London

Published: 2002

Total Pages: 398

ISBN-13: 9781862391208

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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.

Glaciated Continental Margins

Glaciated Continental Margins PDF

Author: Thomas A. Davies

Publisher: Springer Science & Business Media

Published: 2012-12-06

Total Pages: 315

ISBN-13: 9401158207

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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.

GLACIAL LANDSYSTEMS

GLACIAL LANDSYSTEMS PDF

Author: David J.A. Evans

Publisher: Routledge

Published: 2014-02-04

Total Pages: 544

ISBN-13: 1444119168

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This book is a comprehensive overview of the ever-captivating field of glaciation from the perspective of glacial landsystems. This approach models the many processes, forms and interactions that can be found in glaciated landscapes throughout the world. Landsystems models allow the glacial geologist and geomorphologist to evaluate these landscapes in relation to the dynamics of glaciation and to climate and geology. Glacial Landsystems brings together the expertise of an international range of specialists to provide an up-to-date summary of landsystems relevant to both modern and ancient glacier systems and also in the reconstruction and interpretation of former glacial environments. The models are applicable at all scales from ice sheets to small valley glaciers. This book is an essential reference for anyone embarking upon research or engineering surveys in glaciated basins and provides a wide-ranging handbook of glacial landsystem types for students of glaciation.

Geological Processes on Continental Margins

Geological Processes on Continental Margins PDF

Author: M. S. Stoker

Publisher: Geological Society of London

Published: 1998

Total Pages: 366

ISBN-13: 9781897799970

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Continental margins form the relatively narrow transition zones between the different domains of land masses and deep-ocean basins. They are the main regions of sediment input and transfer of sediments to the oceans and thus represent important zones of sediment flux. This work addresses three topics of significance to continental margin development: sedimentation, mass-wasting and stability. It should be of interest to marine geologists, sedimentologists, palaeoceanographers and physical properties specialists.

Engineering of Glacial Deposits

Engineering of Glacial Deposits PDF

Author: Barry G. Clarke

Publisher: CRC Press

Published: 2017-07-14

Total Pages: 504

ISBN-13: 1482265826

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At some time 30% of the world’s land mass was covered by glaciers leaving substantial deposits of glacial soils under major conurbations in Europe, North and South America, New Zealand, Europe and Russia. For instance, 60% of the UK has been affected, leaving significant glacial deposits under major conurbations where two thirds of the population live. Glacial soils are composite soils with significant variations in composition and properties and are recognised as challenging soils to deal with. Understanding the environment in which they were formed and how this affects their behaviour are critical because they do not always conform to classic theories of soil mechanics. This book is aimed at designers and contractors working in the construction and extractive industries to help them mitigate construction hazards on, with or in glacial deposits. These soils increase risks to critical infrastructure which, in the UK includes the majority of the road and rail network, coastal defences such as the fastest eroding coastline in Europe and most of the water supply reservoirs. It brings together many years of experience of research into the behaviour of glacial deposits drawing upon published and unpublished case studies from industry. It draws on recent developments in understanding of the geological processes and the impact they have upon the engineering properties, construction processes and performance of geotechnical structures. Unlike other books on glaciation it brings together all the relevant disciplines in earth sciences and engineering to make it directly relevant to the construction industry.

Engineering Geology and Geomorphology of Glaciated and Periglaciated Terrains

Engineering Geology and Geomorphology of Glaciated and Periglaciated Terrains PDF

Author: J.S. Griffiths

Publisher: Geological Society of London

Published: 2017-10-18

Total Pages: 975

ISBN-13: 1786203022

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The Engineering Group of the Geological Society Working Party brought together experts in glacial and periglacial geomorphology, Quaternary history, engineering geology and geotechnical engineering to establish best practice when working in former glaciated and periglaciated environments. The Working Party addressed outdated terminology and reviewed the latest academic research to provide an up-to-date understanding of glaciated and periglaciated terrains. This transformative, state-of-the-art volume is the outcome of five years of deliberation and synthesis by the Working Party. This is an essential reference text for practitioners, students and academics working in these challenging ground conditions. The narrative style, and a comprehensive glossary and photo-catalogue of active and relict sediments, structures and landforms make this material relevant and accessible to a wide readership.

Drift Exploration in Glaciated Terrain

Drift Exploration in Glaciated Terrain PDF

Author: Geological Society of London

Publisher: Geological Society of London

Published: 2001

Total Pages: 368

ISBN-13: 9781862390829

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This volume describes the use of till geochemical and indicator mineral methods for mineral exploration in the glaciated terrain of Canada. The principles and examples described in this volume will have direct applications for exploration companies looking for diamonds, precious and base metals and uranium in glaciated parts of North America, northern Europe and Asia and mountainous regions of South America.

The Glaciation of High Asia

The Glaciation of High Asia PDF

Author: Matthias Kuhle

Publisher: Springer

Published: 2018-06-27

Total Pages: 300

ISBN-13: 3319775669

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This book summarizes four decades of glacial-geomorphological field research in Central and High Asia in an attempt to draw a significant link between Quaternary science research and paleoclimatology. Based on the latest geomorphological findings, this study offers a large-scale reconstruction of the Last Glacial Maximum (LGM) that in High Asia encompassed a total expanse of no less than three million km2, including the Central Tibetan plateau with 2.4 million km2. The author offers a complete reconstruction of the Late Glacial, Holocene, and Historical glacier advances as well as the successive Postglacial ablation stages extending to the present. Taken together, the findings presented here provide the first insights into a global-climatic impact of the Last Glacial Maximum in Central and High Asia with respect to the current interglacial stage. The comparative data analyses point to an inland glaciation at subtropical latitude covering an area larger than the Nordic inland glaciation in Greenland. These insights are facilitated by a methodological approach, unprecedented in modern Quaternary research, that combines high-quality panoramic photography with high-resolution satellite imagery. This combination of terrestrial and aerial perspectives enables scientists and readers alike to visualize the geomorphology of the landscape as a three-dimensional space. The author’s successful union of digital big data resources with classical geomorphological analysis offers an exciting new template for future research in Quaternary science and related fields.