The physics underlying Gutenberg-Richter in the earth and in the moon
The physics underlying Gutenberg-Richter in the earth and in the moon
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DOI：
10.1007/s12583-015-0513-3
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发表时间：
2015-01
影响因子：
3.3
通讯作者：
S. Crampin;Yuan Gao
中科院分区：
文献类型：
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作者：
S. Crampin;Yuan Gao
线性古腾堡-里希特关系是公认的。在地球上的任何地区，大于任何震级的地震数量的对数与震级成正比。这意味着基础物理是非线性的，而不是纯粹的弹性。这种非线性物理学尚未解决。在这里，我们建议，一个新的理解流体岩石变形提供了物理学的基础古登堡-里希特：在几乎所有的原位岩石中的流体饱和的微裂纹是如此紧密的间隔，他们濒临失败和破裂，因此是临界系统，这对传统的亚临界岩石物理学带来了根本性的新特性。月震中古登堡-里克特线性关系的观测表明，月球深部存在残余流体。
The linear Gutenberg-Richter relationship is well-established. In any region of the Earth, the logarithm of the number of earthquakes, greater than any magnitude, is proportional to magnitude. This means that the underlying physics is non-linear and not purely elastic. This nonlinear physics has not been resolved. Here we suggest that a new understanding of fluid-rock deformation provides the physics underlying Gutenberg-Richter: where the fluid-saturated microcracks in almost all in situ rocks are so closely-spaced that they verge on failure and fracture, and hence are critical-systems which impose fundamentally-new properties on conventional sub-critical geophysics. The observation of linear Gutenberg-Richter relationship in moonquakes suggests that residual fluids exist at depth in the Moon.