Geodetic measurement of the local elastic response to the changing mass of water in Lago Laja, Chile

被引：21

作者：

Bevis, M

Kendrick, E

Cser, A

Smalley, R

机构：

[1] Univ Hawaii, Hawaii Inst Geophys & Planetol, Honolulu, HI 96822 USA

[2] Univ Concepcion, Dept Geomensura, Los Angeles, Chile

[3] Univ Memphis, Ctr Earthquake Res & Informat, Memphis, TN 38152 USA

来源：

PHYSICS OF THE EARTH AND PLANETARY INTERIORS | 2004年 / 141卷 / 02期

基金：

美国国家科学基金会;

关键词：

elasticity; loading; deformation; lake; water; geodetic;

D O I：

10.1016/j.pepi.2003.05.001

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：

A geodetic station (ANTC) built in bedrock in southern Chile is undergoing non-steady vertical motion within a range of nearly 50mm. These fluctuations are dominated by the earth's local elastic response to the changing weight of water in a reservoir located about 20km away. There is also an annual periodic component of motion that is attributed to global and regional patterns of loading, as well as a steady tectonic signal. The local loading response constrains the average elastic Structure of the area, and implies a stiffness that falls near the lower end of the range observed in rock samples. (C) 2003 Elsevier B.V. All rights reserved.

引用

页码：71 / 78

页数：8

共 17 条

[1]

Bevis M, 2001, GEOCHEM GEOPHY GEOSY, V2

[2]

BEVIS M, 2001, GEOCHEM GEOPHYS GEOS, V2

[3]

Birch F, 1966, HDB PHYSICAL CONSTAN, P97

[4] A new global mode of Earth deformation:: Seasonal cycle detected [J].