POST-MAGMATIC HIGH TEMPERATURE METASOMATIC PROCESSES IN GRANITIC ROCKS
- 1 April 1964
- journal article
- research article
- Published by Taylor & Francis in International Geology Review
- Vol. 6 (4) , 668-681
- https://doi.org/10.1080/00206816409473947
Abstract
Microclinization of granites originally enriched in plagioclase forms 1) porphyritic (porphyroblastic) biotite granites; 2) coarse- to medium-grained (even-grained) biotite-, two-mica, and muscovite granites; and 3) pegmatitic granites. Additional post magmatic metasomatic processes effecting granites are early albitization, greisenization, late albitization, and late microclinization. Maximum relative activity of cations in the evolution of post magmatic solutions may be arranged in the following series: K-Na-Si-Al-Na-K or else (with greisenization stage undeveloped) K-Na-K. This series corresponds to the concept of acidity-alkalinity of high temperature post-magmatic solutions and reflects the changes in their acidity at the various stages of metasomatism.--R. M. Hutchinson.Keywords
This publication has 2 references indexed in Scilit:
- Some Physical and Chemical Properties of a New Sodium Aluminum FluorideJournal of the American Chemical Society, 1954
- The Contaminated Granite of Bibette Head, AlderneyGeological Magazine, 1932