| Abstract: | A reconnaissance study on fluid inclusions from the geothermal fields of Tuscany indicates that the hydrothermal minerals were formed by fluids which were, at least in part, boiling. Four types of aqueous inclusions were recognized: (A) two-phase (liquid + vapor) liquid rich, (B) two-phase (vapor + liquid) vapor rich, (C) polyphase hypersaline liquid rich and (D) three phase-H2O liquid + CO2 liquid + CO2-rich vapor. Freezing and heating microthermometric determinations are reported for 230 inclusions from samples from six wells. It is suggested that boiling of an originally homogeneous, moderately saline, CO2-bearing liquid phase produced a residual hypersaline brine and a CO2-rich vapor phase. There are indications of a temperature decrease in the geothermal field of Larderello, especially in its peripheral zones. ?? 1985. |
| Genre: | Article |
| ProdID: | 70012654 |
| Citation Author: | Belkin, H.; De Vivo, B.; Gianelli, G.; Lattanzi, P. |
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| Citation End Page: | 72 |
| Citation Issue: | 1 |
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| Citation Language: | English |
| Citation Larger Work Title: | Geothermics |
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| Citation Number Of Pages: | 14 |
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| Citation Search Results Text: | Fluid inclusions in minerals from the geothermal fields of Tuscany, Italy; 1985; Article; Journal; Geothermics; Belkin, H.; De Vivo, B.; Gianelli, G.; Lattanzi, P. |
| Citation Start Page: | 59 |
| Citation Volume: | 14 |
| Citation Year: | 1985 |
| Type: | citation/reference |
| Text: | Fluid inclusions in minerals from the geothermal fields of Tuscany, Italy; 1985; Article; Journal; Geothermics; Belkin, H.; De Vivo, B.; Gianelli, G.; Lattanzi, P. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| Date Other: | Tue, 1 Jan 1985 00:00 -0600 |
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