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Variscite occurrence in Kushk deposit, Bafg (Yazd Province) | ||
Geotechnical Geology | ||
دوره 3، شماره 4، اسفند 2007، صفحه 260-265 اصل مقاله (142.63 K) | ||
نوع مقاله: Original Research | ||
نویسندگان | ||
Shahrzad Sherafat* 1؛ Esmat Mohammady Nasab2؛ Mohammadali Mackizadeh3؛ Mahnaz Khodami4 | ||
1Department of Geology, Faculty of Science, Islamic Azad University - Qanat Branch, Arak, Iran | ||
2Department of Chemistry, Faculty of Science, Islamic Azad University - Qanat Branch, Arak, Iran | ||
3Department of Geology, Faculty of Science, University of Isfahan, Isfahan, Iran | ||
4Department of Geology, Faculty of Science, Yazd University, Yazd, Iran | ||
چکیده | ||
Kushk Deposit is located in the Central Iran tectonic zone and is a part of the Bafg block (Bafg-Saghand Belt). öDezu Formation in the Kushk area are widespread occurrence The Dezu Formation in the Kushk area is of widespread occurrence and includes terrigenous, carbonate and volcanic rocks. The black shale, which belongs to the Dezu Formation hosts Pb-Zn mineralization (Galena, Pyrite, Sphalerite). Variscite is formed generally as nodules, open space filling and veinlets in ore bearing parts of deposit. In supergene environment, oxidation of sulphide minerals releases H2SO4 bearing fluids. The leaching of Al(OH)3 and phosphates from the host rock in acidic environment and reactions between them produce Variscite. | ||
کلیدواژهها | ||
Bafg block؛ Dezu Formation؛ Supergene environment؛ Variscite | ||
آمار تعداد مشاهده مقاله: 107 تعداد دریافت فایل اصل مقاله: 74 |