ًQE343 : Ore facies, mextal zonation and physio-chemical conditions of ore forming fluid in the Gol- e-Zard Zn-Pb deposit, NW of Aligoudarz, Lorestan province
Thesis > Central Library of Shahrood University > Geosciences > MSc > 2017
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Abstarct: The Gol- e- Zard zinc- lead deposit is located in 10 KM of northeast Aligudars in Isfahan- malaxyer belt of Sanandaj- Sirjan zone.The host rock of the deposit are sedimentary sequence of mextamorphosed shale and mexta sandstone. The age of hosted sequence is late Triassic- Jurassic. Mineralization is accurr in two different horizon that most of zinc- lead mineralization related to first horizon (OH-1). The first horizon inclusive Gol-e-Zard 1&2 deposits and the Gol-e-Zard3 index attribution to second horizon. baxsed on mineralization, structure and texture the Gol-e-Zard deposit has two ore facies. According to situation facies toward feeder zone, the Gol-e-Zard deposit has two facies: stringer facies and bedded facies. Main ores are sphalerite, pyrite, galena and chalcopyrite. The spread siliceous-carbonate and chloritic alteration in the deposit is high. The former main texture are laminated, vein- veinlets, brecciated and replacement. Boudinage, cataclastic, triple junction and wrinkle are textures that formed affected mextamorphosis. According to correlation coefficient, Co,Ag,Pb,S,Sb,Cu,Cd,Zn,Sn elements have positive correlation.Studies of fluid inclusion indicated that in the Gol-e-Zard deposit average of salinity is 5.296(wt%) and average of homogenization temperature is 147.69.As for all evidences, the Gol-e-Zard deposit classificated in Vent Proximal(Selwyn Type) SEDEX deposits.
Keywords:
#sedimentary sequence #zinc-lead #is late Triassic- Jurassic #Gol-e-Zard #Sanandaj- Sirjan #horizon #texture #SEDEX Link
Keeping place: Central Library of Shahrood University
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Keeping place: Central Library of Shahrood University
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