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Paper Information

Journal:   PETROLOGY   WINTER 2012 , Volume 2 , Number 8; Page(s) 1 To 19.
 
Paper: 

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

 
 
Author(s):  AYATI FARIMAH*, KALIMI NOGHREYAN MOUSSA, KHALILI MAHMOUD
 
* GEOLOGY DEPARTMENT, PAYAME NOOR UNIVERSITY, 19395-4697 TEHRAN, I. R. OF IRAN
 
Abstract: 

The study area which lies along the Uromieh-Dokhtar volcanic belt, comprises andesi-basalt, andesite, dacite, diorite and quartz-diorite with porphyry texture exposing as volcanic and sub volcanic bodies. The essential minerals of these rocks are plagioclase, amphibole, biotite and quartz accompanied by pyroxene and traces of k -feldspar. The propyllitic, potassic and phyllic alteration zones point to the occurrence of hydrothermal fluids. The studied amphiboles are Mg-enriched which ranges in composition from Mg-hornblende to actinolite. The biotites are also enriched in Mg, pointing to their formation in high oxygen fugacity conditions. The chemical features of these minerals are characteristics of porphyry Cu bearing intrusive rocks. The investigation of biotite chemistry shows that the fluid composition in the phyllic and potassic zones is different. The geothermometry of chlorites and biotites shows the temperatures of 275-323, 402-450oC and 249-256, 280-344oC for the potassic and phyllic zones respectively. These data are consistent with those of many worldwide porphyry Cu deposits.

 
Keyword(s): HYDROTHERMAL ALTERATION, THERMOMETRY, SALAFCHEGAN
 
 
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APA: Copy

AYATI, F., & KALIMI NOGHREYAN, M., & KHALILI, M. (2012). PETROGRAPHIC AND MINERAL-CHEMISTRY OF THE MAGMATIC-ALTERATION ZONES SOUTH OF SALAFCHEGAN. PETROLOGY, 2(8), 1-19. https://www.sid.ir/en/journal/ViewPaper.aspx?id=272078



Vancouver: Copy

AYATI FARIMAH, KALIMI NOGHREYAN MOUSSA, KHALILI MAHMOUD. PETROGRAPHIC AND MINERAL-CHEMISTRY OF THE MAGMATIC-ALTERATION ZONES SOUTH OF SALAFCHEGAN. PETROLOGY. 2012 [cited 2021July27];2(8):1-19. Available from: https://www.sid.ir/en/journal/ViewPaper.aspx?id=272078



IEEE: Copy

AYATI, F., KALIMI NOGHREYAN, M., KHALILI, M., 2012. PETROGRAPHIC AND MINERAL-CHEMISTRY OF THE MAGMATIC-ALTERATION ZONES SOUTH OF SALAFCHEGAN. PETROLOGY, [online] 2(8), pp.1-19. Available: https://www.sid.ir/en/journal/ViewPaper.aspx?id=272078.



 
 
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