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Stratigraphic evidence of desertification in the west-central Great Plains within the past 1000 yr

Geology

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Abstract

Stratigraphic and geomorphic relations, archaeological data, and eight radiocarbon ages at five widely scattered localities in northeastern Colorado indicate that eolian sand was mobilized over broad areas within the past 1000 yr. The mobilization began after 1 ka, was episodic, and ended at some as yet undetermined time prior to the latter part of the 19th century. Given that climate-model simulations suggest only slight variation in average surface temperature and annual precipitation in this region during the past 1000 yr, this part of the Great Plains evidently is near the threshold of widespread eolian sand transport under the present climate. -Author

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Stratigraphic evidence of desertification in the west-central Great Plains within the past 1000 yr
Series title:
Geology
Volume
22
Issue:
6
Year Published:
1994
Language:
English
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
Geology
First page:
483
Last page:
486
Number of Pages:
4