ELLSWORTH MOUNTAINS - POSITION IN WEST ANTARCTICA DUE TO SEA-FLOOR SPREADING

被引：70

作者：

SCHOPF, JM

机构：

[1] U.S. Geological Survey, Ohio State University, Columbus

来源：

SCIENCE | 1969年 / 164卷 / 3875期

关键词：

D O I：

10.1126/science.164.3875.63

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：

Similarities of middle and upper Paleozoic deposits of the Ellsworth Mountains with those of the Pensacola, Horlick, and other Transantarctic mountains indicate that all these ranges may have had a related geologic history. A tentative explanation is now suggested which involves sea-floor spreading and translocation of the Ellsworth crustal block from its original location adjacent to the East Antarctic Shield. Accordingly, the islands of West Antarctica may differ in origin and the Transantarctic Mountains of East Antarctica may represent one margin of an ancient rift.

引用

页码：63 / &