The effect of dissolved volatiles on magmatic heat sources at intrusive contacts
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ID: 308750
1968
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Abstract
Magmatic heat that is available for transfer to wall rock is derived from the heat in the silica fraction, the heat in the volatile fraction, and the heat of the reaction: magma crystalline silicate + H ~2~ O. The dissolved volatiles reduce the heat of the crystallization reaction. Calculations based on the ternary minimum granite liquidus and estimates of delta V suggest that the heat of crystallization of granite magmas is substantially reduced at water pressures less than about 2,000 bars. A study of the heat available for heating wall rock during contact metamorphism and ore deposition indicates that for granite magmas at water pressures near 1,000 bars the heat available from the volatile phase is approximately half the heat of crystallization and one-fourth the heat available from the silicate.
| Reference Key |
openalex_W1976490171
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|---|---|
| Authors | S. E. Kesler, Stanley Allen Heath |
| Journal | american journal of science |
| Year | 1968 |
| DOI |
10.2475/ajs.266.9.824
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| URL | |
| Keywords | Keywords not found |
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