A calculation of the amount of weathered igneous rock

Details A calculation of the amount of weathered igneous rock A calculation of the amount of weathered igneous rock

Feb 1954

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1954gecoa...5...81r&link_type=abstract

Geochimica et Cosmochimica Acta, vol. 5, Issue 2, pp.81-84

Mathematics

Logic

1

Scientific paper

The quantity, 6 462 kg cm -2 , is calculated for the total of igneous rock weathered during the geologic history of the Earth, viz., 3·5 × 10 9 years. The calculation is based on the assumptions that all 40 A now found in the atmosphere and the hydrosphere is a decay product of 40 K in the Earth's crust, and that all 40 A formed has been released by weathering.

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