Paleotectonic residual strain energy in Southwest China
Based on the orthotropic elastic theory of rock masses, the X-ray method was used to measure the distribution of macro-residual strain energy density along a depth profile, using core samples taken from 47 large-aperture deep boreholes in four regions of Southwest China: the Longmenshan, Anninghe, H...
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KeAi Communications Co., Ltd.
2015-01-01
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doaj-5c07c8f11d434db79ccf5bb3ab91cbf12021-04-02T10:01:17ZengKeAi Communications Co., Ltd.Geodesy and Geodynamics1674-98472015-01-0161253310.1016/j.geog.2014.09.001Paleotectonic residual strain energy in Southwest ChinaOu AnBased on the orthotropic elastic theory of rock masses, the X-ray method was used to measure the distribution of macro-residual strain energy density along a depth profile, using core samples taken from 47 large-aperture deep boreholes in four regions of Southwest China: the Longmenshan, Anninghe, Honghe, and Xianshuihe fault zones. Then, the vertical gradients of the macro-residual strain energy density and the macro-residual strain energy contained in high-energy cuboid block segments along each fault zone were determined. The results demonstrate that the macro-residual strain energy stored at shallow levels in the rock mass in these fault zones may be partly responsible for generating many large earthquakes and may explain why the large earthquakes in this region are typically shallow.http://www.sciencedirect.com/science/article/pii/S1674984715000026Southwest ChinaX-ray methodVertical energy gradientFault zone energyPaleotectonicsResidual strain energyStrain energy densityBorehole strain |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Ou An |
spellingShingle |
Ou An Paleotectonic residual strain energy in Southwest China Geodesy and Geodynamics Southwest China X-ray method Vertical energy gradient Fault zone energy Paleotectonics Residual strain energy Strain energy density Borehole strain |
author_facet |
Ou An |
author_sort |
Ou An |
title |
Paleotectonic residual strain energy in Southwest China |
title_short |
Paleotectonic residual strain energy in Southwest China |
title_full |
Paleotectonic residual strain energy in Southwest China |
title_fullStr |
Paleotectonic residual strain energy in Southwest China |
title_full_unstemmed |
Paleotectonic residual strain energy in Southwest China |
title_sort |
paleotectonic residual strain energy in southwest china |
publisher |
KeAi Communications Co., Ltd. |
series |
Geodesy and Geodynamics |
issn |
1674-9847 |
publishDate |
2015-01-01 |
description |
Based on the orthotropic elastic theory of rock masses, the X-ray method was used to measure the distribution of macro-residual strain energy density along a depth profile, using core samples taken from 47 large-aperture deep boreholes in four regions of Southwest China: the Longmenshan, Anninghe, Honghe, and Xianshuihe fault zones. Then, the vertical gradients of the macro-residual strain energy density and the macro-residual strain energy contained in high-energy cuboid block segments along each fault zone were determined. The results demonstrate that the macro-residual strain energy stored at shallow levels in the rock mass in these fault zones may be partly responsible for generating many large earthquakes and may explain why the large earthquakes in this region are typically shallow. |
topic |
Southwest China X-ray method Vertical energy gradient Fault zone energy Paleotectonics Residual strain energy Strain energy density Borehole strain |
url |
http://www.sciencedirect.com/science/article/pii/S1674984715000026 |
work_keys_str_mv |
AT ouan paleotectonicresidualstrainenergyinsouthwestchina |
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