VOLATILES IN THE EARTHS MANTLE: I. SYNTHESIS OF CHO FLUIDS AT 1273 K AND 2.4 GPA
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dc.contributor.author | Matveev S. | |
dc.contributor.author | Ballhaus C. | |
dc.contributor.author | Fricke K. | |
dc.contributor.author | Truckenbrodt J. | |
dc.contributor.author | Ziegenbein D. | |
dc.date.accessioned | 2020-12-16T02:21:31Z | |
dc.date.available | 2020-12-16T02:21:31Z | |
dc.date.issued | 1997 | |
dc.identifier | https://elibrary.ru/item.asp?id=273703 | |
dc.identifier.citation | Geochimica et Cosmochimica Acta, 1997, , 15, 3081-3088 | |
dc.identifier.issn | 0016-7037 | |
dc.identifier.uri | https://repository.geologyscience.ru/handle/123456789/20859 | |
dc.description.abstract | We have synthesized graphite-saturated CHO fluids at 1273K and 2.4 GPa over 7.5 orders of magnitude in fO2. Bulk H/O of the fluid ranges from 1.78 (oxidized fluids in the H2O-CO2 stability field) to 1330 (highly reduced fluids at the Si-SiC buffer). The maximum H2O content at 1273K and 2.4 GPa at the water maximum (H/O = 2) is 95 +/- 1 mol%. Molar H2 is <0.05% in the CO2 stability field (H/O < 2), 1.5 +/- 0.5% at the H2O maximum, and 6.5 +/- 1% in pure C-H fluids. Molar C2H6 ranges from <0.05% at the H2O maximum to 2% in a pure C-H fluid. Molar H2/C2H6 and H2/CH4 are independent of the bulk H/O of the fluid over a wide range in H/O, indicating that internal reaction rates amongst fluid species are faster than H2 loss. Experiments quenched with variable cooling rates show that CHO fluids preserve their high pressure-temperature species distribution during quenching, provided maximum quench rates are employed. | |
dc.title | VOLATILES IN THE EARTHS MANTLE: I. SYNTHESIS OF CHO FLUIDS AT 1273 K AND 2.4 GPA | |
dc.type | Статья |
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