PETROLOGY OF SKARNS IN THE NORTH AND THE SOUTHWEST OF QAZAN (SOUTH QAMSAR) WITH EMPHASIS ON THE MINERAL CHEMISTRY OF GARNET AND PYROXENE

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CHAVIDEH MARIA; TABATABAEI MANESH SAYED MOHSEN; MACKIZADEH MOHAMMADALI

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Journal: PETROLOGY Year:2018 | Volume:9 | Issue:33 Page(s): 111-132

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Title

PETROLOGY OF SKARNS IN THE NORTH AND THE SOUTHWEST OF QAZAN (SOUTH QAMSAR) WITH EMPHASIS ON THE MINERAL CHEMISTRY OF GARNET AND PYROXENE

Author(s)

CHAVIDEH MARIA | TABATABAEI MANESH SAYED MOHSEN | MACKIZADEH MOHAMMADALI | Issue Writer Certificate

Keywords

GARNETQ1

GEOCHEMISTRYQ1

SKARNQ2

QAZANQ2

GRANITOIDQ1

URUMIEHDOKHTAR ‏Q2

GHAMSARQ1

Abstract

The Oligo-Miocene QAZAN GRANITOID body caused contact metamorphic of surrounding rocks and SKARN formation in the wall limestone. The main intrusive rocks are essentially granite to diorite in composition. Two different types of SKARN, exo and endoskarn have been developed. On the base of microprobe data, the northern SKARN are characterized by zoning and the amounts of andradite and grossular changes oscillatory. While GARNETs from the southwestern SKARN is predominantly andradite in composition.Using Fe/Ti vs. Al/ (Al+Fe+Mn) diagram that were calculated based on the mole percent of the used elements, it is estimated that about less than 50 percent hydrothermal waters were involved for the northern SKARN whereas it was over this amount for the southwestern SKARN. This leds to difference in GARNET composition. The composition of clinopyroxene in both SKARNs is the same (diopside). As a result, hydrothermal fluids have not had much influence on pyroxene genesis. With regards to the occurrence of mineral assemblage and the presence of wollastonite in the SKARNs under study, these rocks have evolved in temperature above 500oC and O2 fugacity in the range of 10-17 to 10-15.

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APA: Copy

CHAVIDEH, MARIA, TABATABAEI MANESH, SAYED MOHSEN, & MACKIZADEH, MOHAMMADALI. (2018). PETROLOGY OF SKARNS IN THE NORTH AND THE SOUTHWEST OF QAZAN (SOUTH QAMSAR) WITH EMPHASIS ON THE MINERAL CHEMISTRY OF GARNET AND PYROXENE. PETROLOGY, 9(33 ), 111-132. SID. https://sid.ir/paper/196966/en

Vancouver: Copy

CHAVIDEH MARIA, TABATABAEI MANESH SAYED MOHSEN, MACKIZADEH MOHAMMADALI. PETROLOGY OF SKARNS IN THE NORTH AND THE SOUTHWEST OF QAZAN (SOUTH QAMSAR) WITH EMPHASIS ON THE MINERAL CHEMISTRY OF GARNET AND PYROXENE. PETROLOGY[Internet]. 2018;9(33 ):111-132. Available from: https://sid.ir/paper/196966/en

IEEE: Copy

MARIA CHAVIDEH, SAYED MOHSEN TABATABAEI MANESH, and MOHAMMADALI MACKIZADEH, “PETROLOGY OF SKARNS IN THE NORTH AND THE SOUTHWEST OF QAZAN (SOUTH QAMSAR) WITH EMPHASIS ON THE MINERAL CHEMISTRY OF GARNET AND PYROXENE,” PETROLOGY, vol. 9, no. 33 , pp. 111–132, 2018, [Online]. Available: https://sid.ir/paper/196966/en

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