GEOCHEMISTRY OF MAGMATIC-HYDROTHERMAL FLUIDS IN MINERALIZED AND BARREN PORPHYRIES, SHAHR-E-BABAK COPPER COMPLEX, KERMAN CENOZOIC MAGMATIC ARC

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ASADI SINA; MOOR FARID

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Journal: GEOCHEMISTRY Year:2016 | Volume:5 | Issue:2 Page(s): 115-129

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Information Journal Paper

Title

GEOCHEMISTRY OF MAGMATIC-HYDROTHERMAL FLUIDS IN MINERALIZED AND BARREN PORPHYRIES, SHAHR-E-BABAK COPPER COMPLEX, KERMAN CENOZOIC MAGMATIC ARC

Author(s)

ASADI SINA | MOOR FARID | Issue Writer Certificate

Keywords

PORPHYRY COPPERQ2

FLUID INCLUSIONQ2

OXYGEN FUGACITYQ2

LA-ICP-MSQ2

KERMANQ2

Abstract

The Shahr-e-Babak PORPHYRY COPPER deposit is located northwest of KERMAN Cenozoic magmatic arc. Combining microthermometry, Raman Spectroscopy and laser ablation ICP-MS, FLUID INCLUSIONs geochemistry studied in three mineralized (Group 1: Meiduk, Chah-Firouzeh and Iju) and three barren (Group 2: Kader, Abdar and Parkam) porphyries in the Shahr-e-Babak copper complex. Hydrothermal alteration has resulted in three stages of mineralization (quartz±sulfide) characterized by vein systems in both groups. These veins are divided into: (1) A and M vein-types (potassic alteration); (2) B vein-type (potassic-sericitic alteration); and (3) D vein-type (propylitic alteration). The main mineralization phase occurred during stages 1 and 2. Mineralization is related to aqueous-carbonic fluids (XCO2>9.6) in group 1 with salinity of 31-44 wt.% NaCl equivalent at temperatures ranging between 374 and 420oC, at pressure>751 bar during fluid unmixing process. In contrast, mineralization is related to homogeneous aqueous fluids (XCO2<7.1) in group 2 and characterized by high salinity (57-76 wt.% NaCl equivalent) at high temperature (570-660oC) and low pressure (<572 bar). Various redox conditions (log fO2) and sharp vapour/brine partition coefficient (DEV/B) of ore-forming metals in the mineralized (log fO2<-29.5; DEV/B=3.8) and barren (log fO2>-32.4; DEV/B=0.32) systems indicate that the majority of metals with the exception of Cu and S, preferentially fractionated into the vapor phase.

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APA: Copy

ASADI, SINA, & MOOR, FARID. (2016). GEOCHEMISTRY OF MAGMATIC-HYDROTHERMAL FLUIDS IN MINERALIZED AND BARREN PORPHYRIES, SHAHR-E-BABAK COPPER COMPLEX, KERMAN CENOZOIC MAGMATIC ARC. GEOCHEMISTRY, 5(2), 115-129. SID. https://sid.ir/paper/230906/en

Vancouver: Copy

ASADI SINA, MOOR FARID. GEOCHEMISTRY OF MAGMATIC-HYDROTHERMAL FLUIDS IN MINERALIZED AND BARREN PORPHYRIES, SHAHR-E-BABAK COPPER COMPLEX, KERMAN CENOZOIC MAGMATIC ARC. GEOCHEMISTRY[Internet]. 2016;5(2):115-129. Available from: https://sid.ir/paper/230906/en

IEEE: Copy

SINA ASADI, and FARID MOOR, “GEOCHEMISTRY OF MAGMATIC-HYDROTHERMAL FLUIDS IN MINERALIZED AND BARREN PORPHYRIES, SHAHR-E-BABAK COPPER COMPLEX, KERMAN CENOZOIC MAGMATIC ARC,” GEOCHEMISTRY, vol. 5, no. 2, pp. 115–129, 2016, [Online]. Available: https://sid.ir/paper/230906/en

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