GEOCHEMISTRY OF SALAFCHEGAN QUARTZ DIORITE PLUTON

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NAZARI M.A.; KESHTGAR SH.; KANANIAN A.; BOOMERI M.

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Journal: Iranian Journal of Geology Year:2017 | Volume:10 | Issue:40 Page(s): 107-120

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Information Journal Paper

Title

GEOCHEMISTRY OF SALAFCHEGAN QUARTZ DIORITE PLUTON

Author(s)

NAZARI M.A. | KESHTGAR SH. | KANANIAN A. | BOOMERI M. | Issue Writer Certificate

Keywords

SALAFCHEGANQ1

QUARTZ DIORITEQ1

SUBVOLCANICQ1

CALCQ2

AALKALINEQ2

GEOCHEMISTRYQ2

Abstract

The SALAFCHEGAN QUARTZ DIORITE pluton which is located at 45 km southwest of Qom, has intruded sandstone and sandy limestone of the Upper Red Formation as small SUBVOLCANIC intrusion. A zigzag pattern of major and trace elements variations in these intrusive rocks, from margin to the center of the pluton, may indicate periodical magma chamber refreshments. These SUBVOLCANIC rocks show geochemical CALC-alkaline affinity and in the case of aluminum saturation index, they could be classified as meta-aluminous rocks, similar to I type granitoids. These rocks are enriched in LILE, and LREE but depleted in HREE. In addition, they show negative anomalies of Nb and Ti, low Ce/Pb, high Ba/La and Ba/Th ratios associated with high Al content. They illustrate porphyritic texture accompanied by inequilibrium phenocrysts such as zoned plagioclase or reaction rims surrounding hornblende crystals. Based on petrographical studies and geochemical analysis, it could be suggested that the parent magma of these SUBVOLCANIC rocks was related to a subduction zone and has emplaced in a magmatic arc.

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References

PETROGRAPHIC AND MINERAL-CHEMISTRY OF THE MAGMATIC-ALTERATION ZONES SOUTH OF SALAFCHEGAN

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APA: Copy

NAZARI, M.A., KESHTGAR, SH., KANANIAN, A., & BOOMERI, M.. (2017). GEOCHEMISTRY OF SALAFCHEGAN QUARTZ DIORITE PLUTON. IRANIAN JOURNAL OF GEOLOGY, 10(40 ), 107-120. SID. https://sid.ir/paper/129508/en

Vancouver: Copy

NAZARI M.A., KESHTGAR SH., KANANIAN A., BOOMERI M.. GEOCHEMISTRY OF SALAFCHEGAN QUARTZ DIORITE PLUTON. IRANIAN JOURNAL OF GEOLOGY[Internet]. 2017;10(40 ):107-120. Available from: https://sid.ir/paper/129508/en

IEEE: Copy

M.A. NAZARI, SH. KESHTGAR, A. KANANIAN, and M. BOOMERI, “GEOCHEMISTRY OF SALAFCHEGAN QUARTZ DIORITE PLUTON,” IRANIAN JOURNAL OF GEOLOGY, vol. 10, no. 40 , pp. 107–120, 2017, [Online]. Available: https://sid.ir/paper/129508/en

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