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This important volume reviews the status of investigations aimed at deciphering the geologic, biogeographic, and archaeological records for the Quaternary Era鈥攖he last million years of geologic time-for the area of continental United States.

Over eighty Quaternary scientists have contributed to the fifty-five chapters divided into four main parts. Part 1 treats the areal geology, with emphasis on the stratigraphy of the glaciated areas east of the Rocky Mountains, unglaciated eastern and central United States, and western United States. Part 2 deals with biogeography: phytogeography and palynology, animal geography and evolution. Part 3 deals with archaeology prehistory in the northeastern states, southeastern states, plains, desert west, and Pacific Coast including Alaska. Part 4 covers many diverse Quaternary studies on鈥攖he continental shelves, isotope geochemistry, paleopedology, the geochemistry of some lake sediments, paleohydrology, glaciers and climate, volcanic-ash chronology, paleomagnetism, neo-tectonics, dendrochronology, and theoretical paleoclimatology.

Originally published in 1965.

The Princeton Legacy Library uses the latest print-on-demand technology to again make available previously out-of-print books from the distinguished backlist of av福利社. These editions preserve the original texts of these important books while presenting them in durable paperback and hardcover editions. The goal of the Princeton Legacy Library is to vastly increase access to the rich scholarly heritage found in the thousands of books published by av福利社 since its founding in 1905.