2018
DOI: 10.1080/00206814.2017.1422442
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Study of late-Mesozoic magmatic rocks and their related copper-gold-polymetallic deposits in the Guichi ore-cluster district, Lower Yangtze River Metallogenic Belt, East China

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Cited by 28 publications
(17 citation statements)
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“…Research on the major elements of biotite and garnet showed that the ore-forming environment of the Hucunnan Cu-Mo deposit was characterized by high oxygen fugacity. This is consistent with the view that large-scale Cu-Mo polymetallic mineralization is closely related to high oxygen fugacity magmas [102][103][104][105][106][107][108][109]. Previous studies on the ore-forming fluid of the deposit showed that the time changes of redox conditions, acid balance, and temperature in the ore-forming fluid led to the temporal separation of copper and molybdenum in Hucunnan skarn deposit [37].…”
Section: Metallogenic Modelsupporting
confidence: 89%
See 1 more Smart Citation
“…Research on the major elements of biotite and garnet showed that the ore-forming environment of the Hucunnan Cu-Mo deposit was characterized by high oxygen fugacity. This is consistent with the view that large-scale Cu-Mo polymetallic mineralization is closely related to high oxygen fugacity magmas [102][103][104][105][106][107][108][109]. Previous studies on the ore-forming fluid of the deposit showed that the time changes of redox conditions, acid balance, and temperature in the ore-forming fluid led to the temporal separation of copper and molybdenum in Hucunnan skarn deposit [37].…”
Section: Metallogenic Modelsupporting
confidence: 89%
“…Minerals 2020, 10, 107 16 of 24 the upper crust and the mantle. It is inferred that Pb in the Hucunnan deposit is mainly mantlederived, which may be contaminated by crustal material (Figure 15b).…”
Section: Mineralization and Materials Sourcementioning
confidence: 99%
“…During the Late Mesozoic, the Lower Yangtze area was an active continental margin setting [91] and was closely associated with the subduction of the Paleo-Pacific oceanic plate [92], resulting in the widespread emplacement of Late Mesozoic intrusive rocks [93][94][95]. Subduction of the Paleo-Pacific slab resulted in intense dehydration, and the overlying mantle wedge was metasomatized by the melts/fluids, forming an enriched lithospheric mantle.…”
Section: Ore-forming Processmentioning
confidence: 99%
“…The newly discovered Paodaoling Au deposit, which is located in the Anqing-Guichi ore cluster, LYRB, has been revealed by current exploration to have total Au reserves of more than 35 tons, with an average Au grade up to 1.73 g/t in the primary ore bodies, significantly higher grade than typical porphyry Au deposits (0.3 g/t to 1.5 g/t) (Cooke et al, 2005;Kerrich et al, 2000). The high-K calc-alkaline ore-bearing dacite porphyries in the Paodaoling Au deposit show normal arc features , quite different from other adakitic porphyries which are related to Cu-Au deposits in the Guichi (Chizhou) area (Song et al, 2014;Yang and Zhang, 2012;Zhang et al, 2014;Gu et al, 2017b). Meanwhile, the Paodaoling Au deposit contains very low Cu content (average 34.83 ppm), characterized as a 'Au-only' porphyry deposit (Sillitoe, 2000;Sillitoe, 2010), different from typical Cu-Fe-S-(Au) deposits in the LYRB (Chu Guozheng, 2010;Yang et al, 2011b), and porphyry Cu-Au deposits (Cooke et al, 2005) or normal gold-rich porphyry deposits worldwide (Sillitoe, 2000).…”
mentioning
confidence: 85%
“…Yanshanian (Late Jurassic to Early Cretaceous) magmatic rocks are widespread in the Guichi mineral district, containing principal intermediate-felsic intrusive rocks and minor volcanics. The intrusions were formed mainly in the Late Jurassic and Early Cretaceous, including high-K calc-alkaline and alkaline rocks (Gu et al, 2017b). The Qingyang-Jiuhua intrusions (ca.…”
Section: Regional Geologymentioning
confidence: 99%