Chemical aspects of hydrothermal alteration with emphasis on hydrogen metasomatism
July 14, 1964
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.
Citation Information
| Publication Year | 1964 |
|---|---|
| Title | Chemical aspects of hydrothermal alteration with emphasis on hydrogen metasomatism |
| DOI | 10.2113/gsecongeo.59.4.538 |
| Authors | J.J. Hemley, W.R. Jones |
| Publication Type | Article |
| Publication Subtype | Journal Article |
| Series Title | Economic Geology |
| Index ID | 70221904 |
| Record Source | USGS Publications Warehouse |