This book reviews advances in understanding of the past ca. two million years of Earth history - the Quaternary Period - in the United States. It begins with sections on ice and water - as glaciers, permafrost, oceans, rivers, lakes, and aquifers. Six chapters are devoted to the high-latitude Pleistocene ice sheets, to mountain glaciations of the western United States, and to permafrost studies. Other chapters discuss ice-age lakes, caves, sea-level fluctuations, and riverine landscapes. With a chapter on landscape evolution models, the book turns to essays on geologic processes. Two chapters discuss soils and their responses to climate, and wind-blown sediments. Two more describe volcanoes and earthquakes, and the use of Quaternary geology to understand the hazards they pose. The next part of the book is on plants and animals. Five chapters consider the Quaternary history of vegetation in the United States. Other chapters treat forcing functions and vegetation response at different spatial and temporal scales, the role of fire as a catalyst of vegetation change during rapid climate shifts, and the use of tree rings in inferring age and past hydroclimatic conditions. Three chapters address vertebrate paleontology and the extinctions of large mammals at the end of the last glaciation, beetle assemblages and the inferences they permit about past conditions, and the peopling of North America. A final chapter addresses the numerical modeling of Quaternary climates, and the role paleoclimatic studies and climatic modeling has in predicting future response of the Earth's climate system to the changes we have wrought.
... (Rubin & Alexander, 1960) V-4; date rejected Block Island, R.I. as too young (Ogden, 1963) Y-524. ... A 10,480 = 140 A-4 (Beetham & Niering, 1961) A-4 (middle 7) (Deevey, 1958) M-413 Pleasant St. Bog, E 10,700 + 400 ...
This monograph reviews the nature of Quaternary environmental changes over the largest continent in the Southern Hemisphere. Moreover, since South America makes a transect across most climatic belts of an...
"This volume brings together nineteen papers of interdisciplinary Quaternary science honoring Stephen Porter.
Talk of the human-enhanced greenhouse effect and the ways in which it may affect our lives has made many people more aware of environmental change. We have come to realize...
Rich with historical and cultural value, these works are published unaltered from the original University of Minnesota Press editions.
United States Contributions to Quaternary Research: Papers Presented on the Occasion of the VIII Congress of the International Association for...
Outline of the History of Arctic and Boreal Biota During the Quaternary Period: Their Evolution During and After the Glacial...
... Volume 4 : Quaternary and Recent Processes and Forms ( 1890-1965 ) and the Mid - Century Revolutions , The Geological Society ( 2008 ) R.J. Chorley , A.J. Dunn , and R.P. Beckinsale , The History of the Study of Landforms or The ...
This is thought to have been dictated largely by the nature of ice shelf evolution in the Ross, Weddell and Amundsen Seas. The limit of the Ross Sea ice sheet in West Antarctica appears to have reached its maximum position between ...
During the Quaternary period, the geological epoch covering the last 1.8 million years, major climatic fluctuations and widespread glaciation had a marked impact on soil characteristics and distribution patterns in...