GLACIATION IN TAYLOR VALLEY ANTARCTICA OLDER THAN 2.7 MILLION YEARS

被引:27
作者
ARMSTRONG, RL
HAMILTON, W
DENTON, GH
机构
[1] Department of Geology, Yale University, New Haven
[2] U.S. Geological Survey, Denver
关键词
D O I
10.1126/science.159.3811.187
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
Potassium-argon dates for three samples of basaltic scoria from Taylor Valley, on the west side of McMurdo Sound, indicate that the basalt, which antedates and postdates major glaciations, is at least 2.7 million years old.
引用
收藏
页码:187 / +
页数:1
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