کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8910678 | 1637922 | 2018 | 47 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Synthetic fluid inclusions XXI. Partitioning of Na and K between liquid and vapor in the H2O-NaCl-KCl system at 600-800â¯Â°C and 500-1000 bars
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
ژئوشیمی و پترولوژی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Synthetic fluid inclusions XXI. Partitioning of Na and K between liquid and vapor in the H2O-NaCl-KCl system at 600-800â¯Â°C and 500-1000 bars Synthetic fluid inclusions XXI. Partitioning of Na and K between liquid and vapor in the H2O-NaCl-KCl system at 600-800â¯Â°C and 500-1000 bars](/preview/png/8910678.png)
چکیده انگلیسی
The synthetic fluid inclusion technique was used to determine the partitioning behavior (distribution constant) of Na and K between coexisting liquid and vapor phases in the H2O-NaCl-KCl system at 500-1000 bars, 600-800â¯Â°C, and for fluids with initial Na/K molar ratios of 3:1, 2:1, 1:1, 1:2 and 1:3. Compositions of coexisting liquid and vapor phases in the binary H2O-KCl system were also determined. Distribution constants for sodium (DNaL/V) and potassium (DKL/V) were calculated from salinities of the synthetic fluid inclusions determined by microthermometry. For a given temperature, pressure and molar Na/K ratio, the distribution constants for Na and K between liquid and vapor are essentially equal, with only a slight preference for Na to partition into the vapor phase and for K to partition into the liquid phase. As such, fluid phase immiscibility and the subsequent physical separation of the liquid and vapor phases owing to buoyancy differences are unlikely to lead to fluids with variable Na/K in different parts of magmatic-hydrothermal systems. The liquid-vapor partitioning behavior obtained here is consistent with previously determined Na/K partitioning between granitic melts and exsolved magmatic aqueous fluids, and with compositions of hydrothermal fluids and associated feldspars in potassic alteration zones of porphyry copper deposits.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Geochimica et Cosmochimica Acta - Volume 235, 15 August 2018, Pages 173-188
Journal: Geochimica et Cosmochimica Acta - Volume 235, 15 August 2018, Pages 173-188
نویسندگان
D. Matthew Jr., Maria Mercedes Gonzalez, J. Donald Rimstidt, Robert J. Bodnar,