University of Isfahan Petrological Journal 2228-5210 12 4 2022 02 20 Geochemistry and microthermometry of fluid inclusions of Cu and Fe mineralization in North Khour volcanic rocks, Eastern Iran Geochemistry and microthermometry of fluid inclusions of Cu and Fe mineralization in North Khour volcanic rocks, Eastern Iran 31 50 26763 10.22108/ijp.2022.126602.1213 FA Golamreza Fotoohirad Department of Mining Engineering, Faculty of Engineering, University of Birjand, Birjand, Iran. Mohammad Hossein Yousefzadeh Assistant Professor, Department of Geology, Faculty of Sciences, University of Birjand, Birjand, Iran. Hossein Abbasiniazabadi Department of Geology, Faculty of Sciences, University of Birjand Journal Article 2021 01 13 The volcanic complex of North Khour  located in southern Khorasan province, 90 km northwest of Birjand in the Eastern of  Iran. The rocks under study are basaltic andesite, andesite and trachyandesite, latite, dacite to rhyodacite with tuff and breccia as pyroclastic rocks. The volcanic rocks are predominantly calc-alkaline nature with some tholeiitic affinity and porphyry texture. Iron mineralization developed as magnetite, hematite and small amount of goethite with magmatic origin, on the base of field observations. Bornite as the only and the primary Cu ore occurred as a small body. The presence of minor amounts of bornite and pyrite as the sulfide phases as well as the absence of the other Cu primary sulfide ores in the area along with secondary Cu mineralization phases reflect a hydrothermal solution with high oxidation degree which has passed the latest magmatic differentiation and gave rise to form surface Cu ores as chalcocite in supergene zone. The thermobarometry of fluid inclusions studies from Ghar Kaftar and Hoze Sabz, yield temperature range of 178 -324 C for Cu mineralization. Therefore, it seems that Cu mineralization is related to epithermal to mesothermal conditions.<br /> <br />  The volcanic complex of North Khour  located in southern Khorasan province, 90 km northwest of Birjand in the Eastern of  Iran. The rocks under study are basaltic andesite, andesite and trachyandesite, latite, dacite to rhyodacite with tuff and breccia as pyroclastic rocks. The volcanic rocks are predominantly calc-alkaline nature with some tholeiitic affinity and porphyry texture. Iron mineralization developed as magnetite, hematite and small amount of goethite with magmatic origin, on the base of field observations. Bornite as the only and the primary Cu ore occurred as a small body. The presence of minor amounts of bornite and pyrite as the sulfide phases as well as the absence of the other Cu primary sulfide ores in the area along with secondary Cu mineralization phases reflect a hydrothermal solution with high oxidation degree which has passed the latest magmatic differentiation and gave rise to form surface Cu ores as chalcocite in supergene zone. The thermobarometry of fluid inclusions studies from Ghar Kaftar and Hoze Sabz, yield temperature range of 178 -324 C for Cu mineralization. Therefore, it seems that Cu mineralization is related to epithermal to mesothermal conditions.<br /> <br />  https://ijp.ui.ac.ir/article_26763_ba9680897474baf2c0f5bb836b71fb51.pdf