Geophysical imaging reveals topographic stress control of bedrock weathering-Reference-Cited by-同舟云学术

Geophysical imaging reveals topographic stress control of bedrock weathering

Published:2015-10-30 Issue:6260 Volume:350 Page:534-538
ISSN:0036-8075
Container-title:Science
language:en
Short-container-title:Science

Author:

St. Clair J.¹,Moon S.²,Holbrook W. S.¹,Perron J. T.²,Riebe C. S.¹,Martel S. J.³,Carr B.¹,Harman C.⁴,Singha K.⁵,Richter D. deB.⁶

Affiliation:

1. Department of Geology and Geophysics and Wyoming Center for Environmental Hydrology and Geophysics, University of Wyoming, Laramie, WY 82071, USA.

2. Department of Earth, Atmospheric and Planetary Sciences, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.

3. Department of Geology and Geophysics, University of Hawaii, Honolulu, HI 96822, USA.

4. Department of Geography and Environmental Engineering, The Johns Hopkins University, Baltimore, MD 21218, USA.

5. Hydrologic Science and Engineering Program, Colorado School of Mines, Golden, CO 80401, USA.

6. Nicholas School of the Environment, Duke University, Durham, NC 27708, USA.

Abstract

Bedrock weathering runs to the hills Fractures in bedrock drive the breakdown of rock into soil. Soil makes observations of bedrock processes challenging. St. Clair et al. combined a three-dimensional stress model with geophysical measurements to show that bedrock erosion rates mirror changes in topography (see the Perspective by Anderson). Seismic reflection and electromagnetic profiles allowed mapping of the bedrock fracture density. The profiles mirror changes in surface elevation and thus provide a way to study the critical zone between rock and soil. Science , this issue p. 534 ; see also p. 506

Funder

NSF

U.S. Army Research Office

NSF Earth Sciences

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

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