physical properties of rocks

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• Typical magnetic properties of rocks — ▪ Table Typical magnetic properties of rocks rock Jn natural remanent magnetization (10−5 electromagnetic units per cubic centimetre) k magnetic susceptibility (10−5 electromagnetic units per cubic centimetre) ratio* Qn=Jn/k·Hex Igneous granite… …   Universalium

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• Heat productivities of various rocks — ▪ Table Heat productivities of various rocks rock type abundances U ppm Th ppm Rb ppm K % granite 3.4 50 220 4.45 andesite 1.9 6.4 67 2.35 oceanic basalt 0.5 0.9 9 0.43 peridotite 0.005 0.01 0.063 0.001 average upper continental crust 2.5 10.5… …   Universalium

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• rock — rock1 rockless, adj. rocklike, adj. /rok/, n. 1. a large mass of stone forming a hill, cliff, promontory, or the like. 2. Geol. a. mineral matter of variable composition, consolidated or unconsolidated, assembled in masses or considerable… …   Universalium