MESOZOIC HOTSPOT EPEIROGENY IN EASTERN NORTH-AMERICA

被引:0
|
作者
CROUGH, ST
机构
[1] Department of Geosciences, Purdue University, West Lafayette, IN 47907, United States
关键词
Phosphate minerals;
D O I
10.1130/0091-7613(1981)9<2:MHEIEN>2.0.CO;2
中图分类号
P5 [地质学];
学科分类号
0709 ; 081803 ;
摘要
Geologic data, especially conodont paleotemperatures, imply that southeastern Canada and New England have been elevated at least 4 km relative to the central Appalachian region. Apatite fission-track ages suggest that the uplift and consequent erosion occurred in Cretaceous-early Tertiary time, consistent with the formation of a broad swell as North America moved northwestward over the Great Meteor hotspot. © 1981 Geological Society of America.
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页码:2 / 6
页数:5
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