Chemical aspects of hydrothermal alteration with emphasis on hydrogen metasomatism
Economic Geology
By: J.J. Hemley and W. R. Jones
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Abstract
The ratio of cation to hydrogen-ion concentration is used as a basis for coordinating many observed varieties of silicate rock alteration. Low ratios drive alteration from feldspar through sericite, montmorillonite, or paragonite, toward kaolinite or pyrophyllite. Principal controls of ratio are reactions with wall rock, pressure-temperature changes, mixing of solutions, and oxidation of H 2 S; their interactions govern the assemblage attained.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Chemical aspects of hydrothermal alteration with emphasis on hydrogen metasomatism |
| Series title | Economic Geology |
| DOI | 10.2113/gsecongeo.59.4.538 |
| Volume | 59 |
| Issue | 4 |
| Publication Date | June 01, 1964 |
| Year Published | 1964 |
| Language | English |
| Publisher | Society of Economic Geologists |
| Description | 32 p. |
| First page | 538 |
| Last page | 569 |