Resistivity structure of the Olympic Mountains and Puget Lowlands

被引：10

作者：

Aprea, C

Unsworth, M

Booker, J

机构：

[1] Univ Calif Los Alamos Natl Lab, Los Alamos, NM 87544 USA

[2] Univ Washington, Geophys Program, Seattle, WA 98195 USA

来源：

GEOPHYSICAL RESEARCH LETTERS | 1998年 / 25卷 / 01期

关键词：

D O I：

10.1029/97GL03490

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

Magnetotellurics has been used to study of the gee-electric structure of the Olympic Mountains and Puget Lowland. Data were collected along an west-east line extending from the Pacific Ocean to the Cascade Mountains. The smoothest resistivity model consistent with the data suggests that subduction of the Olympic Mountains accretionary complex (Core rocks) has been prevented by a 30+ km thick sequence of volcanic rocks. This may effectively couple the Juan de Fuca and North American Plates and may explain the concentration of crustal earthquakes beneath the Puget Lowland.

引用

页码：109 / 112

页数：4

共 25 条

[1]

APREA CM, 1996, THESIS U WASHINGTON

[2] EVIDENCE FOR GREAT HOLOCENE EARTHQUAKES ALONG THE OUTER COAST OF WASHINGTON-STATE [J].