The influence of a ductile crustal zone on glacial isostatic adjustment: Geodetic observables along the US east coast

被引：13
|
作者：
Di Donato, G
Mitrovica, JX
Sabadini, R
Vermeersen, LLA
机构：
[1] Univ Milan, Dipartimento Sci Terra, I-20129 Milan, Italy
[2] Univ Toronto, Dept Phys, Toronto, ON M5S 1A7, Canada
[3] Delft Univ Technol, Fac Aerosp Engn, Delft, Netherlands
来源：
GEOPHYSICAL RESEARCH LETTERS | 2000年 / 27卷 / 18期
关键词：
D O I：
10.1029/2000GL011390
中图分类号：
P [天文学、地球科学];
学科分类号：
07 ;
摘要：
We consider the influence of a 15 km thick ductile crustal layer of viscosity 10(18) Pa s embedded in an elastic 80 km lithosphere on predictions of ongoing glacial isostatic adjustment (henceforth 'GIA') along the U.S. east coast. Crustal velocities are perturbed by 0.5 mm/yr, or more, by the inclusion of the ductile layer. Furthermore, perturbations in predictions of sea-level rates along the U.S. east coast due to the ductile layer have a geographic pattern that is similar to residual trends evident in previous GIA corrections of tide gauge records along this coast.
引用
收藏
页码：3017 / 3020
页数：4
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