Ellis, David E. and Wyllie, Peter J. (1979) Hydration and melting reactions in the system MgO-SiO_2-H_2O at pressures up to 100 kbar. American Mineralogist, 64 (1-2). pp. 41-48. ISSN 0003-004X. https://resolver.caltech.edu/CaltechAUTHORS:20160202-133224481
Full text is not posted in this repository. Consult Related URLs below.
Use this Persistent URL to link to this item: https://resolver.caltech.edu/CaltechAUTHORS:20160202-133224481
Abstract
The proposed model for the system MgO-SiO_2-H_2O ties subsolidus and melting reactions into an internally-consistent P-T net. None of the hydrous magnesium silicates considered is stable at the temperature of the solidus for forsterite + enstatite + H_2O; however, brucite is stable at solidus temperatures and at pressures greater than 50 kbar. In the presence of H_2O enstatite melts incongruently to forsterite plus a silica-saturated liquid at pressures up to 90 kbar. At 90 kbar the hydration reaction Fo + H_2O → En + Br intersects the solidus, and at higher pressures forsterite and H_2O do not coexist. The melting of forsterite + enstatite in the presence of a small amount of H_2O is vapor-present at pressures up to 90 kbar and generates a vapor-saturated, silica-saturated liquid. At higher pressures melting of the same bulk composition generates a silica-saturated, vapor-undersaturated liquid.
| Item Type: | Article | ||||||
|---|---|---|---|---|---|---|---|
| Related URLs: |
| ||||||
| Alternate Title: | Hydration and melting reactions in the system MgO-SiO2-H2O at pressures up to 100 kbar | ||||||
| Additional Information: | © 1979 Mineralogical Society of America. Manuscript received, February 17, 1978; accepted for publication, June 28, 1978. This research was supported by NSF grant EAR 76-20410, and in part by the Materials Research Laboratory Program of the National Science Foundation at the University of Chicago. A perceptive review by Joseph Chernosky helped improve the paper. | ||||||
| Funders: |
| ||||||
| Issue or Number: | 1-2 | ||||||
| Record Number: | CaltechAUTHORS:20160202-133224481 | ||||||
| Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20160202-133224481 | ||||||
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | ||||||
| ID Code: | 64170 | ||||||
| Collection: | CaltechAUTHORS | ||||||
| Deposited By: | Tony Diaz | ||||||
| Deposited On: | 02 Feb 2016 22:37 | ||||||
| Last Modified: | 03 Oct 2019 09:35 |
Repository Staff Only: item control page
