Results 61 to 70 of about 2,316 (218)

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

Finite Element Modelling of Synthetic Normal Resistivity Logging Tool: Insights Into Vein Parameters, Borehole Fluids and Electrode Configuration

open access: yesGeophysical Prospecting, Volume 74, Issue 5, June 2026.
ABSTRACT Borehole resistivity logging can play an important role in subsurface exploration by enhancing the accuracy of surface data inversion models. However, its application in the mining industry remains limited due to challenges posed by complex geological formations, particularly in vein‐hosted deposits such as orogenic gold and porphyry copper ...
Yasaman Nemati   +3 more
wiley   +1 more source

Physicochemical Attributes of Parental Magma in Collisional Porphyry Copper Systems; Using Biotite Chemistry, Case Study: Chahfiruzeh Porphyry Copper Deposit

open access: yesJournal of Economic Geology, 2019
Introduction Almost all of the well-known porphyry copper deposits in Iran occur within the Kerman Cenozoic magmatic arc (KCMA) (Fig 1) in the southeastern part of Cenozoic Urumieh–Dokhtar magmatic belt (Hassanpour et al., 2015). The Miocene Chahfiruzeh
Majid Heidari   +4 more
doaj   +1 more source

Petrogenesis and metallogenic implications of the Miocene granite porphyry in the Jiama Cu-polymetallic deposit, Gangdese belt, South Tibet

open access: yes, 2022
Geochronology, geochemical and isotopic studies were carried out on granite porphyry from the Jiama Cupolymetallic deposit, Gangdese porphyry copper deposit belt, to constrain the genesis and metallogenic potential. LA-ICP-MS zircon U-Pb dating indicates
Deng, Jianghong   +5 more
core   +1 more source

Stratified Pit Features at the Presbytère de l'Ancienne‐Lorette (CeEu‐11) and the Fort Odanak (CaFe‐7) Sites in Québec, Canada: A Comparative Geoarchaeological Analysis

open access: yesGeoarchaeology, Volume 41, Issue 3, May/June 2026.
ABSTRACT A geoarcheological study of two large, stratified Indigenous pit features discovered at two Jesuit mission sites in Québec (Canada) was carried out to offer a detailed documentation of their contents and better understand their use over time. One of the pits is a 17th c.
Sarah Robert, Allison Bain, Najat Bhiry
wiley   +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

The importance of H2O in arc magmas for the formation of porphyry Cu deposits

open access: yesOre Geology Reviews, 2020
Abstract Porphyry copper deposits (PCDs) hosted in subvolcanic intrusions at convergent margins are the primary world’s copper resources. However, the set of magmatic processes that lead to the generation of ore-bearing magmatic provinces remains unclear.
Bourdin, Hervé, Jagoutz, Oliver E
openaire   +3 more sources

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

Origins of the Pangkaimen Au Deposit in the Northern Great Xing'an Range, China: Evidence From Geochronological, Geochemical, Fluid Inclusion, and H–O–S–Pb Isotope Data

open access: yesGeological Journal, Volume 61, Issue 5, Page 1291-1309, May 2026.
The Pangkaimen Au–Ag deposits belong to the epithermal Au deposits, which are of great significance for guiding the research and development of this type of gold deposit. Metallogenic model diagram of Pangkaimen Au–Ag deposit. ABSTRACT The gold (Au) metallogenic belt in the northern Great Xing'an Range is characterised by the wide occurrence of the ...
Sheng Lu   +8 more
wiley   +1 more source

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