EFFECT OF ROCK HARDNESS AND OTHER FACTORS ON SHAPE OF BURROW OF ROCK-BORING CLAM PENITELLA PENITA

被引:18
作者
EVANS, JW
机构
[1] Department of Biology, Memorial University of Newfoundland, St. John's, Nfld.
关键词
D O I
10.1016/0031-0182(68)90094-1
中图分类号
P9 [自然地理学];
学科分类号
0705 ; 070501 ;
摘要
Penitella penita, a west coast rock-boring clam, forms a conical burrow in the rock the shape of which is controlled by a number of environmental variables. The most important of these being substrate hardness. A method for determining the relative friability hardness of sandstone is described. The possibility that this information could be used by the paleontologist to establish the hardness of sedimentary rock at known times in the past is discussed. © 1968.
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页码:271 / &
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