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In situ determination of NaCl-H2O isochores up to 900degree celsius and 1.2 GPa in a hydrothermal diamond-anvil cell

文献类型:期刊论文

作者Li, J. K.3; Chou, I-M.2; Wang, X.1,3
刊名GEOCHEMICAL PERSPECTIVES LETTERS
出版日期2024-07-30
卷号31页码:32-37
ISSN号2410-339X
DOI10.7185/geochemlet.2429
英文摘要NaCl-H2O is a typical binary system solution in geologic environments. However, its available PVTX properties (e.g., isochores) are primarily applicable in the pressure- temperature (P-T) range of < 600 MPa and < 700degree celsius. Here, we performed 53 experiments in a hydrothermal diamond-anvil cell (HDAC) to determine NaCl-H2O isochores by using the newly defined alpha-(3 quartz P-T transition boundary as a pressure calibrant (Li and Chou, 2022). The refined isochores fitted with our data are expressed by: P ( bar ) = A(1) + A(2) x T (degrees C ) and A(1 )= 0.0061 + ( 0.2385 - a(1)) x T-h - ( 0.002855 + a(2)) x T-h(2) - (a(3) x T-h + a(4) x T-h(2) ) x m A(2) = a(1) + a(2) x T-h + 9.888 x 10(-6) x T-h(2) +(a(3) + a(4) x T-h ) x m where m is the NaCl molality (mole/kg H2O), Th h (degrees C) is the liquid-vapour homogenisation (to the liquid phase) temperature, and a(1), a(2), a(3), and a(4) are constants (27.21, -0.05956, -0.3095, and 0.003232, respectively). The isochores have better applicability for the salinity range of 5-25 wt. % NaCl, 100degree celsius < Th h < 450degree celsius, and P-T range up to 1.2 GPa and 900degree celsius. Compared with previous data, these isochores are more precise above 600 MPa, and are particularly suitable for the geological applications involving saline fluids in the deep Earth.
WOS关键词THERMODYNAMIC PROPERTIES ; FLUID INCLUSIONS ; PVTX PROPERTIES ; TEMPERATURES ; H2O-NACL ; METAMORPHISM ; DEFORMATION ; PRESSURES ; QUARTZ
资助项目National Natural Science Foundation of China[42330806] ; National Natural Science Foundation of China[41973055] ; National Natural Science Foundation of China[42130109]
WOS研究方向Geochemistry & Geophysics
语种英语
WOS记录号WOS:001296916400001
出版者EUROPEAN ASSOC GEOCHEMISTRY
资助机构National Natural Science Foundation of China
源URL[http://ir.idsse.ac.cn/handle/183446/11444]  
专题深海科学研究部_深海极端环境模拟研究实验室
通讯作者Li, J. K.; Chou, I-M.
作者单位1.China Univ Geosci Beijing, Beijing 100083, Peoples R China
2.Chinese Acad Sci, Inst Deep Sea Sci & Engn, CAS Key Lab Expt Study Deep Sea Extreme Condit, Sanya 572000, Hainan, Peoples R China
3.Chinese Acad Geol Sci, Inst Mineral Resources, MNR Key Lab Metallogeny & Mineral Assessment, Beijing 100037, Peoples R China
推荐引用方式
GB/T 7714
Li, J. K.,Chou, I-M.,Wang, X.. In situ determination of NaCl-H2O isochores up to 900degree celsius and 1.2 GPa in a hydrothermal diamond-anvil cell[J]. GEOCHEMICAL PERSPECTIVES LETTERS,2024,31:32-37.
APA Li, J. K.,Chou, I-M.,&Wang, X..(2024).In situ determination of NaCl-H2O isochores up to 900degree celsius and 1.2 GPa in a hydrothermal diamond-anvil cell.GEOCHEMICAL PERSPECTIVES LETTERS,31,32-37.
MLA Li, J. K.,et al."In situ determination of NaCl-H2O isochores up to 900degree celsius and 1.2 GPa in a hydrothermal diamond-anvil cell".GEOCHEMICAL PERSPECTIVES LETTERS 31(2024):32-37.

入库方式: OAI收割

来源:深海科学与工程研究所

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