Abstract
Calcite and quartz veins in the gabbroic and dunite rocks of the Semial ophiolite (UAE) were selected for fluid inclusion analysis. The inclusions contain both aqueous low-salinity and hydrocarbon-dominated fluids. Microthermometry data indicate that the aqueous fluids contain 0.22 to 1.45 equivalent wt% NaCl and occasionally contain traces of hydrocarbons. Homogenization to liquid occurred between 91 and 152°C. Modeling based on these fluid inclusion observations indicates that the trapping conditions of the studied rocks were subjected to temperatures of 162 and 172°C, occasional pressures of 610–710 Pa and the sequence percolation of aqueous and hydrocarbon fluids.
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References
Bodnar R.J. (1990) Petroleum migration in the Miocene Monterey Formation, California, USA: Constraints from fluid-inclusion studies [J]. Mineralogical Magazine. 54, 295–304.
Bodnar R.J. & Bethke P.M. (1984) Systematic stretching of fluid inclusions. Fluorite and sphalerite at one atmosphere confining pressure [J]. Economic Geology. 79, 141–146.
Bodnar R.J., Sterner S.M., and Hall D.L. (1989) SALTY: A FORTRAN program to calculate compositions of fluid inclusions in the system NaCl-KCl-H2O [J]. Computers & Geosciences. 15, 19–41.
Brown P.E. (1989) FLINCOR: a microcomputer program for the reduction and investigation of fluid inclusion data [J]. American Mineralogist. 74, 1390–1393.
Hanor J.S. (1980) Dissolved methane in sedimentary brines: Potential effect on the PVT properties of fluid inclusions [J]. Economic Geology. 75, 603–617.
Jensenius J. and Burruss R.C. (1990) Hydrocarbon-water interactions during brine migration: Evidence from the composition of hydrocarbon inclusions in calcite from Danish North Sea oil fields [J]. Geochimica et Cosmochimica Acta. 54, 705–713.
Lang W.H. and Gelfand J.C. (1985) The evaluation of shallow potential in a deep field wildcat [J]. Log Analyst. 26, 13–22.
Poty B., Leroy J., and Jachimowicz L. (1976) A new advice for measuring temperatures under microscope, the Chaixmeca microthermometry apparatus [J]. Bull. Soc. Fr. Minera l. Cristallogr. 99, 182–186.
Shepherd T., Rankin A., and Alderton D. (1985) A Practical Guide to Fluid Inclusion Studies [M]. pp.239. Chapman and Hall, New York.
Zhang Y. and Frantz J.D. (1987) Determination of the homogenization temperature and densities of supercritical fluids in the system NaCl-KCl-CaCl2-H2O using synthetic fluid inclusions [J]. Chem. Geol. 64, 335–350.
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El Tokhi, M., Musallam, A. Semial ophiolite veins of United Arab Emirates—A fluid inclusions study. Chin. J. Geochem. 30, 290–294 (2011). https://doi.org/10.1007/s11631-011-0512-8
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DOI: https://doi.org/10.1007/s11631-011-0512-8