Results 61 to 70 of about 1,108,271 (208)

Table 2. Zircon Hf-O data of the porphyries from the Duolong porphyry Cu-Au deposit in the Bangongco copper belt, central Tibet

open access: yes, 2013
The Duolong porphyry Cu-Au deposit (5.4Mt at 0.72% Cu, 41t at 0.23g/t Au), which is related to the granodiorite porphyry and the quartz-diorite porphyry from the Bangongco copper belt in central Tibet, formed in a continental arc setting.
Qin, Ke-Zhang   +19 more
core   +1 more source

Zircon U-Pb age, trace element and Hf isotope composition of Sepon Au-Cu deposit, Laos: tectonic and metallogenic implications

open access: yesChina Geology, 2018
: The Truong Son Fold Belt, located at the northeastern margin of the Indochina Block, is considered to be tectonically linked to the subduction of the Paleotethys Ocean and subsequent collision. Sepon is one of the most important super large deposits of
Xin-yu Wang   +4 more
doaj   +1 more source

Contrasting apatite geochemistry between ore-bearing and ore-barren intrusions of the giant Kalmakyr gold-rich porphyry Cu deposit, Tien Shan, Uzbekistan

open access: yesFrontiers in Earth Science, 2023
The Kalmakyr deposit in Uzbekistan is one of the world’s largest gold-rich porphyry Cu deposits, and mineralization was proposed to be closely associated with the emplacement of the latest intrusive phases, that is, granodiorite porphyry.
Yangtao Liu   +5 more
doaj   +1 more source

Nature, origin, and phosphorylation potential of the phosphorus/sulfur‐bearing nanoscale multiphasic assemblages in the CM chondrites Murchison and Murray

open access: yesMeteoritics &Planetary Science, Volume 61, Issue 9, Page 2303-2335, September 2026.
Abstract Carbonaceous chondrites contain phosphorus, whose speciation and thus history remain to be investigated. Phosphorus/sulfur‐bearing assemblages have been reported in carbonaceous CM chondrites, but there is no consensus about their exact compositions and origins.
Valentine Megevand   +4 more
wiley   +1 more source

Geology and origin of the post-collisional Narigongma porphyry Cu-Mo deposit, southern Qinghai, Tibet

open access: yes, 2014
Narigongma is a poorly studied Mo-rich (similar to 0.06 wt.%) post-collisional porphyry Cu deposit located in southern Qinghai Province, Tibet, 400 km northwest of the Yulong porphyry Cu-Mo-Au belt.
Bian, Xiongfei   +8 more
core   +1 more source

The Distribution and Timing of Molybdenite Mineralization at the El Teniente Cu-Mo Porphyry Deposit, Chile [PDF]

open access: yes, 2015
The El Teniente Cu-Mo porphyry deposit, Chile, is one of the world’s largest and most complex porphyry ore systems, containing an estimated premining resource of approximately 95 Mt Cu and 2.5 Mt Mo.
Spencer, ET   +3 more
core   +1 more source

Geochemical Characteristics of the Granodiorite Porphyry in Dongxiang W-Cu Deposit, SE China

open access: yes, 2023
The Dongxiang tungsten–copper deposit is a large W–Cu deposit located in the northeast of Jiangxi province in south China. Previous studies have mainly considered the geochemical and isotopic attributes of the ore deposit, but information is ...
Pei Ni   +3 more
core   +1 more source

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

open access: yesInternational 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  

Apatite Fission Track Thermochronology of Granite from Duobaoshan Porphyry Cu (Mo) Deposit, Northeast China: Implications for Cooling History and Ore Preservation

open access: yesGeofluids, 2022
The Duobaoshan Cu (Mo) deposit is one of the oldest super large porphyry deposits in the eastern part of the Central Asian orogenic belt. Although ore-forming processes have been extensively concerned, the post-mineralization ore preservation state was ...
Yaxing Leng, Jianping Wang, Dewen Zheng
doaj   +1 more source

Baogutu: An example of reduced porphyry Cu deposit in western Junggar

open access: yesOre Geology Reviews, 2014
Abstract Classic oxidized porphyry copper deposits (OPCD) are characterized by high tonnage and elevated f O 2 and contain highly oxidized minerals including primary anhydrite and hematite. In contrast, the Baogutu deposit contains abundant hypogene pyrrhotite and methane-rich fluid inclusions, characteristic of lower tonnage, reduced porphyry ...
Cao, M.   +5 more
openaire   +2 more sources

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