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Book Chapter

The Quaternary

By
H. E. Wright, Jr.
H. E. Wright, Jr.
Limnological Research Center, University of Minnesota, Minneapolis, Minnesota 55455
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Published:
January 01, 1989

Abstract

In designing the contents of this chapter I adopted a personal view, for the subject is highly diversified and seems to be too large for a systematic or comprehensive review. I focus on facets of the subject that have stimulated my curiosity and sense of history and have reinforced my holistic view of environmental change, but I also deal with facets that have prompted specific questions by thoughtful students and colleagues—or, more directly, the more cynical question, “What’s so great about the Quaternary?”

Quaternary research involves in one way or another virtually all of the disciplines within the physical sciences, as well as certain aspects of biology, archaeology, and documentary history. Its vigor during the past two decades is illustrated by the introduction of four international journals—Quaternary Research (U.S.) in 1970, Boreas (Nordic countries) in 1972, Journal of Quaternary Science (Britain) in 1982, and Quaternary Science Reviews (London) in 1982—and by the organization of national associations in the United States, Canada, Britain, and several other countries, to say nothing of regional groups like the Friends of the Pleistocene.

But first the source of the strange term Quaternary should be clarified, and why it is spelled with only two r’s. In the early nineteenth century the hypothetical geologic time scale was subdivided into four parts, the Primary being represented by the primordial crystalline rocks of the Earth’s origin, the Secondary by fossiliferous marine rocks derived from the Primary and then consolidated and commonly deformed, the Tertiary by sediments derived from preexisting rocks and containing some extant fossil groups, and the Quaternary by materials derived from preexisting rocks but not consolidated.

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Contents

DNAG, Geology of North America

The Geology of North America—An Overview

Albert W. Bally
Albert W. Bally
Department of GeologyP.O. Box 1892Houston, Texas 77251
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Allison R. Palmer
Allison R. Palmer
Geological Society of America3300 Penrose Place, P.O. Box 9140Boulder, Colorado 80301
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Geological Society of America
Volume
A
ISBN electronic:
9780813754451
Publication date:
January 01, 1989

GeoRef

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