| Abstract: | The FeS content of sphalerite in assemblages with pyrite and pyrrhotite has been widely used and widely criticized as a geobarometer. The commonly accepted form of the geobarometer is based on the composition of sphalerite being independent of temperature below about 550??C at all pressures up to at least 10 kbar, but strong thermodynamic arguments require a significant temperature dependence in this region. Most minor components have a negligible effect on the relevant equilibria, but the effect of CuS is somewhat more significant. Molar and partial molar volumes for binary (ZnS-FeS) and ternary (ZnS-FeS-CuS) sphalerite solutions are presented; the ternary data are consistent with charge transfer between Cu and Fe. -from Authors |
| Genre: | Article |
| ProdID: | 70015001 |
| Citation Author: | Toulmin, III, P.; Barton, Jr, P. B.; Wiggins, L. B. |
| Citation Contributing Office: | |
| Citation Datum: | |
| Citation Day: | |
| Citation Edition: | |
| Citation Editor: | |
| Citation End Page: | 1051 |
| Citation Issue: | 5-6 |
| Citation Keywords: | |
| Citation Language: | English |
| Citation Larger Work Title: | American Mineralogist |
| Citation LatN: | |
| Citation LatS: | |
| Citation LonE: | |
| Citation LonW: | |
| Citation Month: | |
| Citation No Pagination: | |
| Citation Number Of Pages: | 14 |
| Citation Online Only Flag: | |
| Citation Phsyical Description: | |
| Citation Projection: | |
| Citation Public Comments: | |
| Citation Publisher: | |
| Citation Series: | |
| Citation Series Code: | |
| Citation Series Number: | |
| Citation Search Results Text: | Commentary on the sphalerite geobarometer; 1991; Article; Journal; American Mineralogist; Toulmin, III, P.; Barton, Jr, P. B.; Wiggins, L. B. |
| Citation Start Page: | 1038 |
| Citation Volume: | 76 |
| Citation Year: | 1991 |
| Type: | citation/reference |
| Text: | Commentary on the sphalerite geobarometer; 1991; Article; Journal; American Mineralogist; Toulmin, III, P.; Barton, Jr, P. B.; Wiggins, L. B. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| Date Other: | Tue, 1 Jan 1991 00:00 -0600 |
| Publisher: | |
