Results 21 to 30 of about 895 (184)

Geology and mineralization of the Tiegelongnan supergiant porphyry-epithermal Cu (Au, Ag) deposit (10 Mt) in western Tibet, China: A review

China Geology, 2022
The Tiegelongnan Cu (Au, Ag) deposit in central Tibet contains more than 10 Mt of copper ranking 29th in the world. It is characterized by typical porphyry-epithermal alteration and mineralization.
Huan-huan Yang, Qin Wang, Yan-bo Li, Bin Lin, Yang Song, Yi-yun Wang, Wen He, Hong-wei Li, She Li, Jian-li Li, Chang-cheng Liu, Shi-bin Feng, Tang Xin, Xue-lian Fu, Xin-juan Liang, Qi Zhang, Bei-qi Wang, Yang Li   +17 more
doaj   +1 more source

Critical Factors Controlling Pd and Pt Potential in Porphyry Cu–Au Deposits: Evidence from the Balkan Peninsula

Geosciences, 2014
Porphyry Cu–Au–Pd±Pt deposits are significant Au resources, but their Pd and Pt potential is still unknown. Elevated Pd, Pt (hundreds of ppb) and Au contents are associated with typical stockwork magnetite-bornite-chalcopyrite assemblages, at the central
Demetrios G. Eliopoulos, Maria Economou-Eliopoulos, Maria Zelyaskova-Panayiotova   +2 more
doaj   +1 more source

Geophysical signatures of the gold rich porphyry copper deposits: A case study at the Dalli Cu-Au porphyry deposit

Journal of Economic Geology, 2019
Introduction Geophysical exploration is an inexpensive, fast and efficient tool to provide valuable information about the sub-surface geological complications (Dentith and Mudge, 2014).
Moslem Fatehi, Hooshang Asadi Haroni
doaj   +1 more source

Tectonic-magmatic setting for Early Cretaceous low-sulfidation epithermal gold deposits in the Xing–Meng Orogenic Belt: Constraints from zircon U–Pb and Hf isotopic data of wulaga deposit, NE China

Solid Earth Sciences, 2022
The Xing–Meng Orogenic Belt hosts an amount of low-sulfidation epithermal gold deposits. However, the tectonic-magmatic setting remains problematic, which hinders understanding the factors that control the gold endowment in the region.
Yongbin Wang, Xiaochun Liu, Yunkang Guo, Jiaqi Cai, Qing-dong Zeng   +4 more
doaj   +1 more source

Standard models for exploration and development complex copper-porphyry deposits in the Far East of the Russian Federation

RUDN Journal of Engineering Research, 2019
The article deals with the prospects of development of copper-porphyry deposits discovered within the largest ore occurrences and prospecting areas of the Russian Far East.
Alexey S. Desyatkin, Valentina M. Usova, Elena M. Kotelnikova   +2 more
doaj   +1 more source

Relationship of copper-molybdenum and gold minering with magmatism [PDF]

E3S Web of Conferences
In the investigated deposits, a combination of skarn and hydrothermal mineralization has been identified. Specific facies within intrusive complexes align with distinct postmagmatic formations.
Zhonibekov Bobur, Tulyaganova Nargiza, Adilkhanov Karim, Adilov Bakhram, Abdusamatova Dilafruz   +4 more
doaj   +1 more source

Zircon SHRIMP U-Pb Dating and Significance From Weathered Residual Kaolin Deposits on the Northern Margin of the Qinzhou-Hangzhou Suture Zone, China

Frontiers in Earth Science, 2022
Weathered residual Kaolin deposits on the northern margin of the Qinzhou-Hangzhou Suture Zone are characterized by more feldspar-containing minerals and fewer dark minerals.
Chunhai Li, Chunhai Li, Chunhai Li, Qifa Sun, Zhonglin Sun, Xiaohua Zhou, Wei Zhang, Rong Chen, Tianshan Gao   +8 more
doaj   +1 more source

Determination of oxygen fugacity from ore-bearing magma responsible for Gazu copper mineralization: Cerium data in zircon mineral [PDF]

پترولوژی, 2021
Porphyry Cu deposits are typically oxidized. Oxygen fugacity (fO2) is a key factor, which controls the formation of porphyry Cu deposits. Trace element compositions of Cretaceous magmatic zircon grains (65.9-65.1 Ma) were determined from ore-bearing ...
Alireza Almasi, amir mahdavi, Jingwen Mao   +2 more
doaj   +1 more source

Determination of geospatial criteria and prediction of potential areas for porphyry copper deposits in Kazakhstan

Frontiers in Earth Science
Determining spatial parameters related to mineral deposits is crucial for analysing mineral prospectivity. These spatial parameters, called Geospatial Criteria (GC), can serve as input data for modelling mineral prospectivity.
Zahid Shah, Emil Bayramov, Emil Bayramov, Emil Bayramov, Jessica Neafie, Reimar Seltmann, Zohreh Rahnama   +6 more
doaj   +1 more source

Porphyry indicator zircons (PIZs): Application to exploration of porphyry copper deposits

Ore Geology Reviews, 2020
Abstract Magmas with a high oxidation state (FMQ +1 to +2), a high-water content (≥ 4 wt % H2O) and a high degree of fractionation are necessary to form porphyry copper deposits (PCDs). Different proxies, such as Fe3+/Fe2+ ratio of whole-rock, minerals indicative of high oxygen fugacity (fO2) and water content as well as geochemical signatures of ...
Pizarro, Héctor, Campos, E., Bouzari, F., Rousse, Sonia, Bissig, T., Grégoire, Michel, Riquelme, R.   +6 more
openaire   +2 more sources