Basal till fabrics of modern alpine glaciers

被引：0
|
作者：
Mills, Hugh H. [1 ,2 ]
机构：
[1] Department of Geological Sciences, University of Washington, Seattle, WA 98195, United States
[2] Department of Chemistry and Geology, Clemson University, Clemson, SC 29631, United States
来源：
Bulletin of the Geological Society of America | 1977年 / 88卷 / 06期
关键词：
Alpine glacier - Clast sizes - Eigenvalue analysis - Ice flow - Ice sheet - Methods of analysis - Pleistocene - Single mode;
D O I：
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中图分类号：
学科分类号：
摘要：
Basal-till fabrics from three alpine glaciers ranging in length from 2.5 to 7.5 km were analyzed. Fabric patterns are similar to those reported from basal tills of lowland glaciers: a single mode parallel to ice-flow direction and a preference for up-glacier dips. Eigenvalue analysis, however, showed that the preferred planes of the a axes are weaker than those reported from one Pleistocene ice sheet. Two methods of analysis indicated that there is little relation between clast orientation and clast size or shape. © 1977 Geological Society of America.
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页码：824 / 828
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