Inducing action of hydrogen migrating along faults on earthquakes |
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| Authors: | Qichu Su E Zeller and E Angino |
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| Institution: | (1) Department of Physics, Zhengzhou University, 450052 Zhengzhou, China;(2) Space Technology Center, The University of Kansas, 66045 Lawrence, Kansas, U. S. A.;(3) Department of Geology, The University of Kansas, 66045 Lawrence, Kansas, U. S. A. |
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| Abstract: | The reduction of the microhardness and the crystal constants of some non-metallic materials, such as calcite, dolomite, antigorite,
etc., are observed after a short time of hydrogen permeating treatment at low pressure. It means that hydrogen diffusion can
cause their strength dropping or weakening. The hydrogen, which is produced under the earth by various chemical reactions
or accumulated when the earth formed, is migrating up continuously along faults, causing weakening of rocks and faults at
the same time. So it is possible that rocks and faults break under lower tectonic stress condition. Hydrogen anomalies are
passive reflection, precursor and accompaniment of fault activities or earthquakes on the face of it, but hydrogen migrating
has active influence on faults and its moving.
The Chinese version of this paper appeared in the Chinese edition ofActa Seismologica Sinica,14, 229–235, 1992. |
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| Keywords: | hydrogen anomalies hydrogen embrittlement precursor of earthquake earthquake |
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