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A New Method for Determining Fluid Compositions in the H2O-NaCl-CaCl2 System with Cryogenic Raman Spectroscopy
Chi Guoxiang1; Chu Haixia1; Scott, Ryan1; Chou I-Ming2
2014-08-01
Source PublicationACTA GEOLOGICA SINICA-ENGLISH EDITION
Volume88Issue:4Pages:1169-1182
AbstractRaman peaks of various hydrates in the H2O-NaCl-CaCl2 system have been previously identified, but a quantitative relationship between the Raman peaks and XNaCl (i.e., NaCl/(NaCl+CaCl2)) has not been established, mainly due to the difficulty to freeze the solutions. This problem was solved by adding alumina powder to the solutions to facilitate nucleation of crystals. Cryogenic (-185 degrees C) Raman spectroscopic studies of alumina-spiced solutions indicate that XNaCl is linearly correlated with the total peak area fraction of hydrohalite. Capsules of solutions made from silica capillary were prepared to simulate fluid inclusions. Most of these artificial fluid inclusions could not be totally frozen even at temperatures as low as -185 degrees C, and the total peak area fraction of hydrohalite is not correlated linearly with XNaCl. However, the degree of deviation (XNacl) from the linear correlation established earlier is related to the amount of residual solution, which is reflected by the ratio (r) of the baseline bump area, resulting from the interstitial unfrozen brine near 3435 cm-1, and the total hydrate peak area between 3350 and 3600 cm-1. A linear correlation between XNaCl and r is established to estimate XNaCl from cryogenic Raman spectroscopic analysis for fluid inclusions.
SubtypeArticle
KeywordCryogenic Raman H2o-nacl-cacl2 Xnacl Fluid Inclusion
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.1111/1755-6724.12281
Indexed BySCI
Language英语
WOS KeywordZN-PB DEPOSIT ; PLASMA-MASS SPECTROMETRY ; FUSED-SILICA CAPILLARIES ; NOVA-SCOTIA ; HYDROTHERMAL DOLOMITIZATION ; MINERALIZING BRINES ; INCLUSION RESEARCH ; HALITE SOLUBILITY ; CANADA ; NACL-CACL2-H2O
WOS SubjectGeosciences, Multidisciplinary
WOS IDWOS:000341580300017
Citation statistics
Cited Times:10[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.idsse.ac.cn/handle/183446/758
Collection深海科学研究部_深海极端环境模拟研究实验室
Affiliation1.Univ Regina, Dept Geol, Regina, SK S4S 0A2, Canada
2.Chinese Acad Sci, Sanya Inst Deep Sea Sci & Engn, Lab Expt Study Deep Sea Extreme Condit, Sanya 572000, Hainan, Peoples R China
Recommended Citation
GB/T 7714
Chi Guoxiang,Chu Haixia,Scott, Ryan,et al. A New Method for Determining Fluid Compositions in the H2O-NaCl-CaCl2 System with Cryogenic Raman Spectroscopy[J]. ACTA GEOLOGICA SINICA-ENGLISH EDITION,2014,88(4):1169-1182.
APA Chi Guoxiang,Chu Haixia,Scott, Ryan,&Chou I-Ming.(2014).A New Method for Determining Fluid Compositions in the H2O-NaCl-CaCl2 System with Cryogenic Raman Spectroscopy.ACTA GEOLOGICA SINICA-ENGLISH EDITION,88(4),1169-1182.
MLA Chi Guoxiang,et al."A New Method for Determining Fluid Compositions in the H2O-NaCl-CaCl2 System with Cryogenic Raman Spectroscopy".ACTA GEOLOGICA SINICA-ENGLISH EDITION 88.4(2014):1169-1182.
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