The Quaternary Period in the United States
The Quaternary Period in the United States

Author: A.R. Gillespie

Publisher: Elsevier

Published: 2003-12-17

Total Pages: 595

ISBN-13: 0080474098

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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.

The Cycle of Cosmic Catastrophes
The Cycle of Cosmic Catastrophes

Author: Richard Firestone

Publisher: Simon and Schuster

Published: 2006-06-05

Total Pages: 346

ISBN-13: 1591439647

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Scientific proof validating the legends and myths of ancient floods, fires, and weather extremes • Presents scientific evidence revealing the cause of the end of the last ice age and the cycles of geological events and species extinctions that followed • Connects physical data to the dramatic earth changes recounted in oral traditions around the world • Describes the impending danger from a continuing cycle of catastrophes and extinctions There are a number of puzzling mysteries in the history of Earth that have yet to be satisfactorily explained by mainstream science: the extinction of the dinosaurs, the vanishing of ancient Indian tribes, the formation of the mysterious Carolina Bays, the disappearance of the mammoths, the sudden ending of the last Ice Age, and the cause of huge underwater landslides that sent massive tsunamis racing across the oceans millennia ago. Eyewitness accounts of these events are chronicled in rich oral traditions handed down through generations of native peoples. The authors’ recent scientific discoveries link all these events to a single cause. In The Cycle of Cosmic Catastrophes Richard Firestone, Allen West, and Simon Warwick-Smith present scientific evidence about a series of prehistoric cosmic events that explains why the last Ice Age ended so abruptly. Their findings validate the ubiquitous legends and myths of floods, fires, and weather extremes passed down by our ancestors and show how these legendary events relate to each other. Their findings also support the idea that we are entering a thousand-year cycle of increasing danger and possibly a new cycle of extinctions.