Glacial-Marine Sedimentation

ISBN-13: 9781461337959 / Angielski / Miękka / 2011 / 844 str.

Bruce F. Molnia

Opis

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.

Spis treści

I. Glacial-Marine Sediment in Space and Time.- Ancient Glacial-Marine Deposits: Their Spatial and Temporal Distribution.- II. Quaternary Glacial-Marine Sedimentation.- Alaska.- Subarctic Glacial-Marine Sedimentation: A Model.- Geotechnical Analyses of Submarine Landslides in Glacial-Marine Sediment, Northeast Gulf of Alaska.- Glacial-Marine Sedimentation Processes and Lithofacies of Temperate Tidewater Glaciers, Glacier Bay Alaska.- Antarctica.- Development of a Polar Glacial-Marine Sedimentation Model from Antarctic Quaternary Deposits and Glaciological Information.- Distribution and Association of Sediment Gravity Flow Deposits and Glacial/Glacial-Marine Sediments Around the Continental Margin of Antarctica.- Arctic Ocean.- Central Arctic Ocean Sediment Texture: A Key to Ice Transport Mechanisms.- A Late Cenozoic Stratigraphy for Glacial-Marine Sediments of The Eastern Alpha Cordillera, Central Arctic Ocean.- Stratigraphy and Sedimentology of Ice-Rafted and Turbidite Sediment, Canada Basin, Arctic Ocean.- Kane Basin.- Glacial and Glacial-Marine Sediment Lithofacies of the Kane Basin.- Baffin Island.- Changes in Glacial-Marine Sedimentation in Core HU77-159, Frobisher Bay, Baffin Island, N.W.T.: A Record of Proximal, Distal, and Ice-Rafting Glacial-Marine Environments.- A Facies Model of Quaternary Glacial-Marine Cyclic Sedimentation Along Eastern Baffin Island, Canada.- Puget Lowlands.- Facies of Late Pleistocene Glacial-Marine Sediments on Whidbey Island, Washington: An Isostatic Glacial-Marine Sequence.- Paleoecology of Late Pleistocene Glacial-Marine Sediments in Northwestern Washington and Southwestern British Columbia.- North Atlantic Ocean.- Distal Glacial-Marine Sedimentation: Abundance, Composition, and Distribution of North Atlantic Ocean Pleistocene Ice-Rafted Sediment.- III. Older Glacial-Marine Sedimentation.- Neogene.- Glacial Lithofacies of the Neogene Yakataga Formation, Robinson Mountains, Southern Alaska Coast Range, Alaska.- Paleozoic.- Glacial-Marine Sedimentation in the Late Paleozoic Karoo Basin, Southern Africa.- Precambrian.- Glacial-Marine and Subglacial Sedimentation, Upper Proterozoic Mineral Fork Formation, Utah.- List of Contributors.- Author Index.- Geographic Index.