Fluid-inclusion technique for determining maximum temperature in calcite and its comparison to the vitrinite reflectance geothermometer
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Abstract
Theory, laboratory experiments, and empirical observation suggest that many aqueous fluid inclusions in calcite reequilibrate during overheating, and therefore some homogenization temperatures (Th) record a temperature close to the maximum reached by the rock. This characteristic suggests that aqueous fluid inclusions in calcite can be used to establish maximum temperature (Tpeak). To test this hypothesis, we have compiled fluid inclusion Tpeak, mean random vitrinite reflectance (Rm), and present-day Tpeak from 46 diverse geologic systems that have been at Tpeak from 104 to 106 yr. Present Tpeak ranged from 65 to 345 °C, Th modes and means ranged from 59 to 350 °C, and Rm data ranged from 0.4% to 4.6%, spanning the temperature and thermal maturity range associated with burial diagenesis, hydrothermal alteration, and low-grade metamorphism.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Fluid-inclusion technique for determining maximum temperature in calcite and its comparison to the vitrinite reflectance geothermometer |
| Series title | Geology |
| DOI | 10.1130/0091-7613(1990)018<1003:FITFDM>2.3.CO;2 |
| Volume | 18 |
| Issue | 10 |
| Year Published | 1990 |
| Language | English |
| Publisher | Geological Society of America |
| Description | 4 p. |
| First page | 1003 |
| Last page | 1006 |
| Google Analytic Metrics | Metrics page |