Journal
GEOARCHAEOLOGY-AN INTERNATIONAL JOURNAL
Volume 19, Issue 8, Pages 753-778Publisher
WILEY
DOI: 10.1002/gea.20023
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Geoarchaeological and chronological evidence from the remote Gilf Kebir Plateau in southwest Egypt suggests a new model for the influence of early and mid-Holocene precipitation regimes on land-use strategies of prehistoric settlers in what is now the center of the largest hyperarid area on earth. We hypothesize that the quantitatively higher,-daytime, monsoon summer rainfall characteristic of the early Holocene (9300-5400 C-14 yr B.P/8400-4300 yr B.C.) resulted in less grass growth on the plateau compared to the winter rains that presumably fell in the cool nights during the terminal phase of the Holocene pluvial (5400-4500 yr B.P/4300-3300 yr B.C.). The unparalleled climatic transition at 5400 yr B.P. (4300 yr B.C.) caused a fundamental environmental change that resulted in different patterns of human behavior, economy; and land use in the canyon-like valleys and on the plains surrounding the plateau. The model emphasizes the crucial impact of seasonal rainfall distribution on cultural landscapes in and regions and the lower significance of annual precipitation rates, with implications for future numeric climate models. It also serves as an example of how past climate changes have affected human societies. (C) 2004 Wiley Periodicals, Inc.
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