A SEISMIC DISCONTINUITY IN LITHOSPHERE

被引：124

作者：

HALES, AL

机构：

[1] Division of Geosciences, Southwest Center for Advanced Studies, Dallas, TX

来源：

EARTH AND PLANETARY SCIENCE LETTERS | 1969年 / 7卷 / 01期

关键词：

D O I：

10.1016/0012-821X(69)90009-0

中图分类号：

P3 [地球物理学]; P59 [地球化学];

学科分类号：

0708 ; 070902 ;

摘要：

Seismic observations of the travel times from explosions in Lake Superior on profiles both north and south of the lake show an increase in apparent velocity at a distance of about 650 km. These observations imply that there is a seismic discontinuity at which the velocity increases from about 8.05 to 8.3 to 8.45 km/sec at a depth of 80-90 km. It is suggested that this change may arise from the transition from spinel to garnet peridotite. © 1969.

引用

页码：44 / +

页数：1

共 16 条

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