a: Simplified geological map of the Beiya gold deposit, showing the distribution of ore-bearing and ore-barren porphyries and the sampling locations (after He et al., 2015). b: Vertical cross ...
узнать большеThe Beiya gold–polymetallic deposit, located in the middle of the Jinshajiang–Ailaoshan alkaline porphyry metallogenic belt, is the largest skarn gold deposit in China. Scheelite is a typical hydrothermal mineral which can serve as mineralization process tracer and is significant for the hydrothermal deposit study.
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узнать большеIt is clear that calcite separates from Luping have δ 13 C PDB and δ 18 O SMOW values similar to those of the Stages II calcite separates from Beiya ( Fig. 8; Wu et al., 2010). Therefore, C and ...
узнать большеMinerals 2018, 8, 441 2 of 13 also an essential factor for the generation of porphyry Cu-Au deposits [8–11]. The high water content of the magma not only promotes magmatic water reaching saturation earlier [10], but also increases the partitioning of Au from melt to
узнать большеThe Beiya deposit, located in the Jinshajiang-Ailaoshan Cenozoic potassium porphyry metallogenic belt, is the largest gold skarn deposit in China (388 t Au with an average grade of 2.42 g/t; He et ...
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узнать большеThe Beiya gold deposit (323t of gold @ 2.47 g/t) is located in the centre of the Jinshajiang-Ailaoshan potassium alkaline porphyry Cu-Au metallogenic belt in SW China, which is the largest skarn ...
узнать большеThe Beiya gold-polymetallic deposit, located at the junction of the "Sanjiang" Tethys–Himalaya orogenic belt and the Yangtze craton in southwestern …
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узнать большеSemantic Scholar extracted view of "Garnet geochemistry of the giant Beiya gold–polymetallic deposit in SW China: Insights into fluid evolution during skarn formation" by Xianqing Gao et al. DOI: 10.1016/j.oregeorev.2022.105198 Corpus ID: 253414388 Garnet ...
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узнать большеThe Beiya porphyry–skarn gold-polymetallic deposit is one of the largest gold deposits in China, and also contains significant amounts of silver and base metals. The estimated reserve at the end of 2015 was 130 million metric tonnes (Mt) of ores, grading 2.42 g/t Au, 0.48 wt.% Cu, 25.5 wt.% Fe, 38.85 g/t Ag, 1.24 wt.% Pb, and 0.53 wt.% Zn.
узнать большеPublished on American Geosciences Institute (https://) Home > Geochronology of the giant Beiya gold–polymetallic deposit in Yunnan Province, Southwest China and its relationship with the petrogenesis of alkaline porphyry
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узнать большеA close spatial and temporal relationship between porphyry and polymetallic vein mineralization has been reported for many orefields, e.g., the main stage veins at Butte, USA (Meyer et al., 1968 ...
узнать большеThe Beiya gold deposit is located in the central part of the Jinshajiang–Honghe strike–slip belt, at the junction zone of the Tethys-Himalaya orogenic belt and the Yangtze plate in SW China. This large-scale (125.6millionmetrictonnes with a mean grade of 2.42g/t) Au-rich polymetallic deposit is related to alkaline porphyry intrusions.
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узнать большеThe porphyries in Beiya gold polymetallic deposit were emplaced at ca. 34–37 Ma. The porphyries were derived from partial melting of the thickened lower crust. The Beiya gold–polymetallic orefield, with gold reserves of 305 t, is one of the most representative porphyry-skarn orefields in the Jinshajiang–Ailaoshan Cu–Au ore belt …
узнать большеIn this study, a refractory Au-Ag ore from Beiya (Yunnan, China) was characterised and the occurrence states of low-grade gold and silver were clarified. The results revealed that the gold in the ...
узнать большеThe Beiya porphyry-skarn gold-polymetallic deposit is one of the largest gold deposits in China, and also contains significant amounts of silver and base metals. The estimated reserve at the end of 2015 was 130million metric tonnes (Mt) …
узнать большеDOI: 10.1016/J.OREGEOREV.2015.03.004 Corpus ID: 128986517 Geochemistry and geochronology of porphyries from the Beiya gold–polymetallic orefield, western Yunnan, China A set of Tertiary alkali-rich porphyries occurs in the Jinshajiang River-Ailao Mountain ...
узнать большеThe Beiya deposit is situated to the north of Dali in western Yunnan, China. Geologically, Beiya is located in the southern Sanjiang Tethys tectonic domain and to the east of the Jinshajiang suture (Fig. 1).Sanjiang Tethys is named after the three major rivers (Chi: Jiang) in the region, i.e., Jinshajiang, Lancangjiang, and Nujiang.
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узнать больше1. Introduction The Beiya gold deposit, including the Wandongshan segment that contains ~ 99 million metric tons of ore at an average grade of 2.61 g/t Au (Yunnan Gold and Mineral Resources Corp., pers. Commun., 2014), is the largest known skarn Au deposit in China. ...
узнать большеBased on comprehensive petrological, geochronological, and geochemical studies, this study analyzed the relationships between the Beiya gold‐polymetallic skarn deposit and quartz syenite porphyries, and discussed the source(s) and evolution of magmas. Our results suggest that syenite porphyries (i.e. the Wandongshan, the Dashadi, and the …
узнать большеThe Beiya deposit in the central Jinshajiang-Ailaoshan metallogenic belt of SW China is the country''s largest gold skarn and third largest gold deposit. In this study of the Beiya deposit, we use garnet mineralogy and geochemistry to delineate three skarn alteration zones (i.e., contact, proximal and distal skarn). We investigate the possible controls on the rare earth …
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узнать большеMinerals 2018, 8, 441 2 of 13 also an essential factor for the generation of porphyry Cu-Au deposits [8–11]. The high water content of the magma not only promotes magmatic water reaching ...
узнать большеThe values for MORB and the average lower crust (LC) are respectively from Lee et al. (2012), and Rudnick and Gao (2014). (C) Cu concentrations in the earlier brine fluid inclusions predating the ...
узнать большеWhile China''s solar industry expansion has led to a drop in electricity costs from solar power, researchers have also found that it is an ''over investment in …
узнать большеThe Beiya ore district, as a part of the Cenozoic alkali-rich porphyry belt in the eastern Tibet-western Yunnan-southeastern Yunnan area, possesses three types of alkaline porphyries formed at three stages, and has experienced repeated mineralization. There are three genetic types of mineral deposits in the Beiya ore district: ① Cu-Au polymetallic deposits …
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узнать большеThe Beiya gold-polymetallic deposit is China''s largest skarn-type Au deposit with Au reserves of >380 t. Although several studies have addressed the skarn formation …
узнать большеDOI: 10.1016/J.OREGEOREV.2019.01.028 Corpus ID: 134718690 Timing of skarn gold deposition in the giant Beiya polymetallic gold deposit, southwest China: Constraints from in situ monazite SIMS U-Th-Pb geochronology In recent years, several Nb-rare-earth ...
узнать большеConcealed porphyry delineation based on nonlinear three-dimensional density-difference inversion: An example in the Beiya mine area, Western Yunnan, China. China Geology, 2(3), 342‒353. doi: 10.31035/cg2018117.
узнать большеThe Beiya in western Yunnan, China, is a world-class porphyry–skarn polymetallic Au orefield that is currently being explored and constitutes the topic of this paper. The Beiya orefield is a ...
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