Global strength and elastic thickness of the lithosphere

Magdala Tesauro; Mikhail K. Kaban; Sierd A.P.L. Cloetingh

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Global strength and elastic thickness of the lithosphere

机译：Global strength and elastic thickness of the lithosphere

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The strength and effective elastic thickness (Te) of the lithosphere control its response to tectonic and surface processes. Here, we present the first global strength and effective elastic thickness maps, which are determined using physical properties from recent crustal and lithospheric models. Pronounced strength contrasts exist between old cratons and areas affected by Tertiary volcanism, which mostly coincide with the boundaries of seimogenic zones. Lithospheric strength is primarily controlled by the crust in young (Phanerozoic) geological provinces characterized by low Te (～25 km), high topography (＞ 1000 m) and active seismicity. In contrast, the old (Achaean and Proterozoic) cratons of the continental plates show strength primarily in the lithospheric mantle, high Te (over 100 km), low topography (＜1000 m) and very low seismicity.

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《Global and planetary change》 |2012年第6期|51-57|共7页
作者
Magdala Tesauro; Mikhail K. Kaban; Sierd A.P.L. Cloetingh;
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作者单位

German Research Center for Geosciences (GFZ), Potsdam, Germany,Department of Earth Science, Utrecht University;

German Research Center for Geosciences (GFZ), Potsdam, Germany,IPE, Moscow, Russia;

Department of Earth Science, Utrecht University;

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原文格式 PDF
正文语种英语
中图分类天文学;
关键词
lithospheric strength; effective elastic thickness; global model;

Global strength and elastic thickness of the lithosphere

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