Studies of three selected sulfide-silicate assemblages from ore samples from the Sar Cheshmeh porphyry copper deposit led to some ore genetic conclusions. The presence of chalcopyrite blebs in the groundmass orthoclase and quartz from the stock suggests liquid immiscibility in a cooling late-magmatic melt. This is in favor of the orthomagmatic model proposed for porphyry copper deposits. Th...

The Vathi porphyry Cu-Au±Mo deposit is located in the Kilkis ore district, northern Greece. Hydrothermally altered and mineralized samples of latite quartz monzonite are enriched with numerous rare critical metals. present study focuses on bulk geochemistry mineral chemistry pyrite, chalcopyrite, magnetite, titanite. Pyrite chalcopyrite most abundant minerals at related to potassic, propylitic,...

Taknar Polymetal (Cu-Zn-Au-Ag-Pb) Deposit: A New Type Magnetite-Rich VMS Deposit, Northeast of Iran

jian cu deposit is hosted by surian volcano-sedimentary complex of permo-triassic age on the eastern edge of the sanandaj-sirjan metamorphic zone at a distance of 195 km from shiraz, southwestern iran. the complex consists mainly of metabasalt, chlorite-quartz schist, chlorite-muscovite schist, mica schist and graphite schist. pyrite is the most important sulfide and chalcopyrite is the major c...

The large Bayanbaolege Ag polymetallic ore deposit is located in the Tuquan-Linxi Fe (Sn)-Cu-Pb-Zn-Ag-Nb (Ta) metallogenic belt, which an important part of Great Xing’an Range province, northeast China. sulfide–quartz vein-type orebodies are mainly hosted Cretaceous granodiorite porphyry and Late Permian Linxi formation. U-Pb dating zircon from post-ore diorite porphyrite yields age 124.8 ± 1.1...

In gold-endowed greenstone belts, ore bodies generally correspond to orogenic gold systems (OGS) formed during the main deformation stage that led craton stabilization (syntectonic period). Most OGS deposits postdate and locally overprint magmatic-hydrothermal systems, such as Au-Cu porphyry mostly magmatic (synvolcanic period) polymetallic intrusion-related (IRGS) of syntectonic period. Porphy...

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The recently discovered 460 Gaodi porphyry Mo-Cu deposit is a sub-economic characterized by low grades, dispersed mineralization, and separated Mo- Cu-ore bodies. This study aims to elucidate the factors underlying this type of mineralization. Electron-microprobe analyses biotite from ore-related granite yielded Ti-in-biotite crystallization temperatures 677–734 °C (an average 719 °C) phenocrys...

Stratabound deposits within late Carboniferous carbonate units in the Middle–Lower Yangtze River metallogenic belt are important copper producers in China. Hitherto, the genesis of these deposits has been debated, due to poor constraints regarding the timing and source of the mineralization. Proposed models include a late Carboniferous seafloor exhalative formation (SEDEX), or an Early Cretaceo...