Results 81 to 90 of about 1,166,006 (167)

Correlation between ore mineralogical composition at different depths and Bond Work Index for the Erdenetiin Ovoo Cu-Mo porphyry deposit, Mongolia

Mongolian Geoscientist
The Erdenetiin Ovoo Cu-Mo porphyry deposit in Mongolia is the largest copper mine corporation in the nation. In this study, we investigate the grinding properties of biotite granodiorite and granodiorite rock alteration relative to variations in mine ...
Batmunkh Tumen-Ayush, Chinzorig Bavuu, Narangerel Adiyasuren, Davaajargal Darambazar, Ganbileg Davaajav, Khaliun Amartuvshin, Sondor Ganbat, Tsend-Ayush Tserendagva, Altankhuyag Dorjyunden, Ganzorig Chimed   +9 more
doaj   +1 more source

Geology, geochemistry and fluid inclusion of Qarachilar Cu-Mo-Au quartz veins, northeast of Kharvana, East Azerbaijan

Journal of Economic Geology, 2018
Introduction The Qarachilar Cu-Mo-Au occurrence is located in the Arasbaran ore zone (AZ), NW Iran, some 70 km north of Tabriz. The AZ is characterized by occurrence of different types of mineralization and hosts many Cu-Mo porphyry (PCD), Cu skarn, and
Fariba Asiay Soufiani, Mir Ali Asghar Mokhtari, Hossein Kouhestani, Amir Morteza Azimzadeh   +3 more
doaj   +1 more source

Rare earth elements and yttrium minerals in altered granite-porphyry and hosting high-alumina schists in the Pellapahk Cu-Mo occurrence (Kolmozero-Voronya Belt)

Vestnik MGTU
Rare Earth Elements (REE) and yttrium phosphates monazite-(Ce) and xenotime-(Y), fluorine carbonates synchysite-(Ce) and parisite-(Ce), silicate allanite-(Ce) have been studied in the metamorphic rocks in the area of the Pellapahk Cu-Mo porphyry ...
Kalinin A. A., Khachatryan M. G., Savchenko Ye. E.   +2 more
doaj   +1 more source

Systematization of u-pb zircon ages of granitoids from the copper porphyry deposits on the urals

Литосфера, 2017
There is a generalization of U-Pb age of zircons from the copper-porphyry deposits of the eastern slope of the Urals. Approved reserves of the largest ones are about 1.4-1.8 Mt of Cu (at an average content of 0.4-0.6 wt % of Cu).
Anatolii I. Grabezhev, Galina Yu. Shardakova, Yurii L. Ronkin, Oksana B. Azovskova   +3 more
doaj   +2 more sources

Application of Apatite EPMA Analyses in the Haftcheshmeh Cu-Mo Porphyry System as a Chemical Indicator of the Source Magma

Journal of Economic Geology
The Haftcheshmeh Cu-Mo porphyry system is located in the Arasbaran magmatic zone in Alborz-Azarbaijan structure zone, northwestern Iran. As ore mineralization occurred mainly in gabbrodiorite and granodiorite porphyry stocks, chemical compositions of ...
Shohreh Hassanpour, Maryam Ahankoub
doaj   +1 more source

Contribution from Mafic Melt to the Zhireken Porphyry Mo-Cu Deposit, Eastern Transbaikalia, Russia: Evidence from Mafic Microgranular Enclaves [PDF]

International Journal of Economic and Environment Geology, 2010
Mafic microgranular enclaves (MME) were formed in felsic ore-bearing porphyries from the Zhireken por-phyry Mo-Cu deposit, eastern Transbaikalia, Russia. Porphyry rocks were emplaced during the Upper Jurassic.
ANITA, N. BERZINA , VITALY, I. SOTNIKOV
doaj  

New porphyry Cu +/- Mo occurrences in the north-eastern Aegean, Greece: Ore mineralogy and epithermal relationships

, 2005
New discoveries of porphyry Cu +/- Mo mineralization have been made on Limnos and Lesvos islands, in areas covered by hydrothermally altered Miocene shoshonitic volcanic and subvolcanic rocks. The Fakos prospect has many typical features of porphyry Cu +/
Voudouris, Panagiotis, Alfieris, Dimitrios   +1 more
core   +1 more source

A modified genetic model for multiple pulsed mineralized processes at the giant Qulong porphyry Cu-Mo mineralization system

Porphyry copper deposits are economically significant sources of Cu and Mo, formed when metal-rich fluids precipitate at shallow levels, exsolving from underlying magmatic reservoirs at depth. However, the origin and evolution of these metal-rich fluids,
Luo, Sangjiancuo, Chen, Xin, Zhang, Le, Gao, Shunbao, Zheng, Youye, Lin, Hao, Ci, Qiong, Wei, Jiangang   +7 more
core   +1 more source

Fractionation of Cu and Mo isotopes caused by vapor-liquid partitioning, evidence from the Dahutang W-Cu-Mo ore field

, 2016
The study presents Cu-65 and Mo-97 isotope values from cogenetic chalcopyrite and molybdenite found in veins and breccias of the Dahutang W-Cu-Mo ore field in China. The samples span a 3-4 km range.
Mathur, Ryan, Mutti, Laurence, Xiang, Xinkui, Sun, Weidong, Yao, Junming, Song, Weile, Chen, Huayong, Luo, Xiaohong   +7 more
core   +1 more source

Zircon compositional systematics from Devonian oxidized I-type granitoids: examination of porphyry Cu fertility indices in the New Brunswick Appalachians, Canada

Frontiers in Earth Science
Zircon is a common, widely distributed accessory mineral in most igneous rocks and its refractory nature records magmatic evolution in terms of oxygen and U-Th-Pb isotopes, and trace-element contents all of which reflect the intrinsic physio-chemical ...
Fazilat Yousefi, David R. Lentz, Christopher R. M. McFarlane, James A. Walker, Kathleen G. Thorne   +4 more
doaj   +1 more source