Year 2010, Volume 140, Issue 140, Pages 19 - 34 2010-09-01

SUNGUN PORFİRİ BAKIR YATAĞINDA (İRAN) SIVI KAPANIMI MİKROTERMOMETRESİNE DAYALI ALTERASYON ZONU İNCELEMELERİ
Investigations of alteration zones based on fluid inclusion microthermometry at Sungun porphyry copper deposit, Iran

Omid ASGHARI [1] , Ardeshir HEZARKHANI [2]

220 709

Sungun bakır porfiri yatakları Iran'ın kuzeybatısında, Doğu Azerbaycan'da yer almaktadır. Porfiriler kuvars monzodiyoritten kuvars monzonite kadar değişen stoklar ve dayklar olarak oluşmuştur. Dört hipojen alterasyon tipi gelişmiştir: Potasik, fillik, propilitik ve arjilik. Sungun'da tipik olarak üç sıvı kapanımı tipi görülür: (1) buharzengini, (2) sıvı zengini ve (3) çok fazlı. Kayatuzu en sonuncuda ana katı fazdır. Kuvars kristalleri içindeki birincil çok fazlı kapanımlar mikro-termometre analizleri için seçilmiş ve jeolojik basınç ve hidrotermal akışkan yoğunluğunu hesaplamak için dikkate alınmışlardır. Potasik zonda, ortalama homojenleşme sıcaklığı 413.6 °C iken fillik alterasyonda 375.9 °C'dir. Potasik alterasyonda beklendiği gibi, hidrotermal çözeltiler sıcaklığı fillik zonlarda görülenden daha fazladır. Hidrotermal çözeltilerin tuzluluğu homojenleştirilmiş sıcaklıkla yüksek kohezyonludur, böylece potasik örneklerdeki ortalama tuzluluk, fillik örneklerden daha fazla olup 46.3'tür (NaCl ağırlık %). Potasik alterasyonun lokasyonuna bağlı olarak, beklendiği gibi, litostatik basınç fillik olandan daha fazladır. Sonuç olarak, potasik olarak altere olmuş örneklerdeki hidrotermal akışkanların ortalama yoğunluğu1.124 (gr/cm3 )'dir ki bu değer fillik zonda bulunanların değerinden (1.083 gr/cm3 ) daha fazladır.

The Sungun porphyry copper deposit is located in East Azerbaijan, NW of Iran. The porphyries occur as stocks and dikes ranging in composition from quartz monzodiorite to quartz monzonite. Four types of hypogene alteration are developed; potassic, phyllic, propylitic and argillic. Three types of fluid inclusions are typically observed at Sungun; (1) vapor-rich, (2) liquid-rich and (3) multi-phase. Halite is the principal solid phase in the latter. The primary multiphase inclusions within the quartz crystals were chosen for micro-thermometric analyses and considered to calculate the geological pressure and hydrothermal fluid density. In potassic zone, the average of homogenization temperature is 413.6 °C while in phyllic alteration, 375.9 °C. As expected in potassic alteration, the temperature of hydrothermal solutions is higher than that in the phyllic zone. The salinity of the hydrothermal fluids has a high coherency with homogenization temperature, so the average of salinity in potassic samples is 46.3 (wt% NaCl) which is higher than phyllic samples. Based on the location of potassic alteration, as expected, the lithostatic pressure is much more than the phyllic one. Finally, the average density of hydrothermal fluids in the potassically altered samples is 1.124 (gr/cm3 ) which is higher than the ones in phyllic zone (1.083 gr/cm3 ).

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Primary Language en
Subjects Engineering
Journal Section Articles
Authors

Author: Omid ASGHARI (Primary Author)

Author: Ardeshir HEZARKHANI
Institution: Amirkabir University of Technology Department of Mining and Metallurgical Engineering

Bibtex @research article { bulletinofmre52439, journal = {Bulletin of the Mineral Research and Exploration}, issn = {0026-4563}, eissn = {2651-3048}, address = {Maden Tetkik Arama Genel Müdürlüğü}, year = {2010}, volume = {140}, pages = {19 - 34}, doi = {}, title = {Investigations of alteration zones based on fluid inclusion microthermometry at Sungun porphyry copper deposit, Iran}, key = {cite}, author = {ASGHARI, Omid and HEZARKHANI, Ardeshir} }
APA ASGHARI, O , HEZARKHANI, A . (2010). Investigations of alteration zones based on fluid inclusion microthermometry at Sungun porphyry copper deposit, Iran. Bulletin of the Mineral Research and Exploration, 140 (140), 19-34. Retrieved from http://dergipark.org.tr/bulletinofmre/issue/3958/52439?publisher=mta?publisher=mta
MLA ASGHARI, O , HEZARKHANI, A . "Investigations of alteration zones based on fluid inclusion microthermometry at Sungun porphyry copper deposit, Iran". Bulletin of the Mineral Research and Exploration 140 (2010): 19-34 <http://dergipark.org.tr/bulletinofmre/issue/3958/52439?publisher=mta?publisher=mta>
Chicago ASGHARI, O , HEZARKHANI, A . "Investigations of alteration zones based on fluid inclusion microthermometry at Sungun porphyry copper deposit, Iran". Bulletin of the Mineral Research and Exploration 140 (2010): 19-34
RIS TY - JOUR T1 - Investigations of alteration zones based on fluid inclusion microthermometry at Sungun porphyry copper deposit, Iran AU - Omid ASGHARI , Ardeshir HEZARKHANI Y1 - 2010 PY - 2010 N1 - DO - T2 - Bulletin of the Mineral Research and Exploration JF - Journal JO - JOR SP - 19 EP - 34 VL - 140 IS - 140 SN - 0026-4563-2651-3048 M3 - UR - Y2 - 2019 ER -
EndNote %0 Bulletin of the Mineral Research and Exploration Investigations of alteration zones based on fluid inclusion microthermometry at Sungun porphyry copper deposit, Iran %A Omid ASGHARI , Ardeshir HEZARKHANI %T Investigations of alteration zones based on fluid inclusion microthermometry at Sungun porphyry copper deposit, Iran %D 2010 %J Bulletin of the Mineral Research and Exploration %P 0026-4563-2651-3048 %V 140 %N 140 %R %U
ISNAD ASGHARI, Omid , HEZARKHANI, Ardeshir . "Investigations of alteration zones based on fluid inclusion microthermometry at Sungun porphyry copper deposit, Iran". Bulletin of the Mineral Research and Exploration 140 / 140 (September 2010): 19-34.