STRUCTURE OF YOUNG UPPER CRUST AT THE EAST PACIFIC RISE NEAR 9-DEGREES-30'N

被引：101

作者：

CHRISTESON, GL ^{[1
]}

PURDY, GM ^{[1
]}

FRYER, GJ ^{[1
]}

机构：

[1] UNIV HAWAII MANOA,SCH OCEAN & EARTH SCI & TECHNOL,HONOLULU,HI 96822

来源：

GEOPHYSICAL RESEARCH LETTERS | 1992年 / 19卷 / 10期

关键词：

D O I：

10.1029/91GL00971

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

Eight on-bottom seismic refraction experiments are analyzed in an effort to resolve the structure of the emplacement zone of lavas and dikes at the fast-spreading East Pacific Rise. The results suggest that the volcanic section doubles in thickness within approximately 1 km of the axial summit caldera (ASC) due to the emplacement of lava that either overflows the ASC or is transported through lateral tube conduits, and the depth to the top of the sheeted dike complex increases from approximately 160 m within the ASC to approximately 340 m a kilometer away on the flank.

引用

页码：1045 / 1048

页数：4

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