Geological significance of anisotropy of seismic velocities in Earth's crust
Autor: | N. Ye. Galdin, I.A. Rezanov |
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Rok vydání: | 1967 |
Předmět: | |
Zdroj: | International Geology Review. 9:1424-1429 |
ISSN: | 1938-2839 0020-6814 |
Popis: | Anisotropism of seismic velocities is at its minimum in rocks consisting mainly of feldspar and quartz, is appreciable in pyroxenes and amphiboles (chain-structured silicates), and is at its maximum in mica-rich rocks (sheef-structured silicates). Inasmuch as the difference between the formation and boundary velocities has been established by the DSS for the Earth's crust, as a whole, and is recognizable also in the tops of the mantle, the crust and the tops of the mantle probably consist of seismically anistropic rocks. -- IGR Staff. |
Databáze: | OpenAIRE |
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