Results 81 to 90 of about 16,696 (213)

Trace elements and melt inclusion in zircon within the Qunji porphyry Cu deposit: Application to the metallogenic potential of the reduced magma-hydrothermal system

Open Geosciences
The Qunji porphyry copper (Cu) deposit, located within the Awulale metallogenic belt (AMB) in the western Tianshan orogenic belt, exhibits distinct geochemical and mineralogical characteristics that have not been fully understood.
Zhang Zizhen, Gao Zhengxi, Zuo Yushan, Zuo Lei, Liu Rui   +4 more
doaj   +1 more source

Major elements geochemistry of chlorite in different ore deposits and its genesis and exploration significance: a case study from Naruo porphyry Cu deposit in Duolong ore district, Tibet

Frontiers in Earth Science
Chlorite is present extensively in many types of deposits. The mechanism underlying the chemical variations in chlorite remains unclear. The Naruo porphyry deposit is a giant copper porphyry deposit in the Duolong ore district of Tibet.
Faqiao Li, Juxing Tang, Yang Song, She Li, Pan Tang, Haifeng Li, Huanhuan Yang, Qin Wang, Yongqiang Wang, Zongzhui Danzeng, Yanbo Li, Jianli Li, Hongwei Li, Yujie Dong   +13 more
doaj   +1 more source

Mineralogical characterization of Sn deposits from the Santa Fe District, Bolivia [PDF]

, 2015
The Sn-Zn-Pb-Ag Japo-Santa Fe-Morococala ore deposit is located in the Central Andean Belt province. The ore mineralization is hosted in a Paleozoic metasedimentary sequence and porphyritic Oligocene-Miocene igneous rocks. Ore minerals occur in veins and
Alfonso Abella, María Pura, Canet Miquel, Carles, García-Vallès, Maite, Jiménez-Franco, Abigail, Trujillo, Juan Elvys   +4 more
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Quartz-amethyst hosted hydrocarbon-bearing fluid inclusions from the green ridge breccia in the snoqualmie granite, North Cascades,WA, USA [PDF]

, 2017
We wish to acknowledge the constructive criticisms made by the three anonymous reviewers.Their suggestions and comments greatly improved the first version of the manuscript.Peer reviewedPublisher ...
Baba, Mas’Ud, Bowden, Stephen, Costanzo, Alessandra, Feely, Martin, George, Joe, Lindner, Franzisca, Owens, Peter, Parnell, John   +7 more
core   +2 more sources

Comparison of mineralization of the Sungun and Kighal porphyry copper deposits, NW Iran: with an emphasis on fluid inclusion studies

Journal of Economic Geology, 2019
Introduction Nowadays, more than half of the word’s copper production is obtained from porphyry copper deposits, large (greater than 100 Mt), low- to moderate-grade, disseminated, stockwork-veinlet, carrying at least trace elements, such as molybdenum ...
Tayebeh Ramezani, Mohammad Maanijou, Sina Asadi, David Lentz, Naser Pirouznia   +4 more
doaj   +1 more source

Erosion of porphyry copper deposits estimated by quantitative elemental content analysis on the example of Aktogay and Sungun ore fields

Известия высших учебных заведений: Геология и разведка
Background. Porphyry copper deposits are attracting increased attention, which determines the relevance of studying their geochemical patterns to ensure a greater efficiency of geological fore casting. Aim.
T. P. Morozova, V. V. Dyakonov
doaj   +1 more source

Contact Metamorphism in Southern California [PDF]

, 1954
A highly condensed introduction to "Contact metamorphism in southern California" is obviously not the place in which to indulge in semantic niceties nor to engage in terminological tussles, and thus the title is not intended to reflect a carefully ...
Campbell, Ian
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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

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

Journal 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, Alireza Zarasvandi, Mohsen Rezaei, Johann Raith, Adel Saki   +4 more
doaj   +1 more source

Exploration for volcanogenic sulphide mineralisation at Benglog, north Wales [PDF]

, 1983
Exploration for volcanogenic sulphide mineralisation around Benglog is one of three investigations designed to assess the metallogenic potential of the Ordovician Aran Volcanic Group.
Allen, P.M., Cameron, D.G., Cooper, D.C., Jackson, Audrey A., Parker, M.E.   +4 more
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