Along strike variations in the electrical structure of the San Andreas Fault at Parkfield, California

被引：104

作者：

Unsworth, M ^{[1
]}

Bedrosian, P

Eisel, M

Egbert, G

Siripunvaraporn, W

机构：

[1] Univ Alberta, Dept Phys, Edmonton, AB T6G 2J1, Canada

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

[3] Oregon State Univ, Coll Ocean & Atmospher Sci, Corvallis, OR 97331 USA

来源：

GEOPHYSICAL RESEARCH LETTERS | 2000年 / 27卷 / 18期

关键词：

D O I：

10.1029/2000GL011476

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

Magnetotelluric exploration has been used to image along strike variations in the electrical resistivity structure of the San Andreas Fault at Parkfield, California. A low resistivity wedge extending to a depth of several kilometers is continuous over a horizontal distance of 8 km. The base of the wedge is coincident with the shallowest microearthquakes. A change in the electrical and fluid connection of the San Andreas Fault with a low resistivity zone in the Franciscan formation is observed along the Parkfield segment.

引用

页码：3021 / 3024

页数：4

共 16 条

[11] Nadeau RM, 1997, B SEISMOL SOC AM, V87, P1463
[12] An efficient data-subspace inversion method for 2-D magnetotelluric data
Siripunvaraporn, W
Egbert, G
[J]. GEOPHYSICS, 2000, 65 (03) : 791 - 803
[13] RAPID INVERSION OF 2-DIMENSIONAL AND 3-DIMENSIONAL MAGNETOTELLURIC DATA
SMITH, JT
BOOKER, JR
[J]. JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH AND PLANETS, 1991, 96 (B3): : 3905 - 3922
[14] Two-dimensional seismic image of the San Andreas fault in the northern Gabilan range, central California: Evidence for fluids in the fault zone
Thurber, C
Roecker, S
Ellsworth, W
Chen, Y
Lutter, W
Sessions, R
[J]. GEOPHYSICAL RESEARCH LETTERS, 1997, 24 (13) : 1591 - 1594
[15] High-resolution electromagnetic imaging of the San Andreas fault in central California
Unsworth, M
Egbert, G
Booker, J
[J]. JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH, 1999, 104 (B1) : 1131 - 1150
[16] WALDHAUSER F, 1999, EOS T AGU, V46, pF705

← 1 2 →