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The large Shuangwang gold deposit (>80 t gold) is located in the Western Qinling Orogen (WQO) of central China. It is an orogenic-type gold deposit hosted in an NW-extending breccia belt in the …
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The hydrothermal Py is gold-bearing arsenian Py that occurs as fine-grained disseminates or as the rims surrounding the diagenetic gold-free Py cores (Fig. 4 e). ... Syngenetic origin for the sediment-hosted disseminated gold deposits in NW Sichuan, China: ore fabric evidence. Ore Geol. Rev., 22 (2003), pp. 91-116.
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Lin Wenchuang (1990) The characteristics, genesis and ore-bearing properties of Mangchang concealed granitic body, Guangxi [J]. Geology of Guangxi. 3, 1–13 (in Chinese with English abstract). Google Scholar Liu Yingjun and Ma Dongsheng (1987) Geochemical characteristics of gold-bearing formation in South China [J].
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The Paiting gold deposit, Guizhou Province, China, has been regarded as a Carlin-type gold deposit by several researchers. Alteration and ore-related minerals from the Paiting deposit were examined, and results were compared with the Cortez Hills Carlin-type gold deposit, Nevada, USA. Similarities include the structural and stratigraphic …
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Hydrothermal titanite from the mineralized diorite has a LA-ICP-MS U-Pb age of 122.3 ± 4.3 Ma, which is consistent with the gold-bearing pyrite Re-Os isochron age of 122.5 ± 6.7 Ma.
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dating of a gold‑bearing quartz vein from the Liaotun Carlin‑type gold deposit, Guangxi, southern China Rongguo Hu1*, Baocheng Pang1*, ... Gold ore body and its serial number
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The Shanggong gold deposit is located in the Xiong'er Terrane, Henan Province, China. It is bounded by the San-Bao fault to the north and the Machaoying fault to the south (Fig. 1).It contains a Precambrian crystalline basement with an age of formation of about 1.85 Ga, followed by continental accretion from the Mesoproterozoic to Paleozoic, …
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The West Qinling orogen in central China is an important gold prospective area, containing a series of large gold deposits, e.g., Baguamiao, Yangshan, Liba, …
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Gold bearing pyrite was subjected to element mapping to determine whether it was affected by deformation or fluid disturbance by the energy dispersive detector X-MAXN80 equipped with the Nova NanoSEM 450 at IGGCAS. ... China. The scarcity of ore deposits in this region is due to the low exploration level, and therefore this region …
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1. Introduction. The Lower Yangtze River Belt (LYRB) in central-eastern China, which hosts more than 200 copper (gold)-bearing polymetallic ore deposits, makes up one of the most important metallogenic belts in China (Pan and Dong, 1999, Mao et al., 2006, Hou et al., 2007).Field investigations and chronological studies reveal that these …
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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. However, it is still unclear which features of these ore-bearing intrusions are crucial for the enormous …
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Abstract. The Pianyanzi gold deposit is situated at the western margin of the Yangtze Craton, and represents a rare sellaite-bearing orogenic gold deposit. This …
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arsenic-carbon-containing gold sulfide ore is one of the most difficult gold ores to treat at present, and it is also an important gold ore resource in China. Sitando et al. [15] found that the "gold-robbing" abilities of different types of "gold-robbing" substances are significantly different. Quartz only adsorbed 1.7% of the gold,
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The vein undulates upwards and sinks eastward. The ore-bearing rocks mainly include bioclastic limestone, strongly silicified breccia limestone and silicified breccia claystone. ... Yan, J. (2015). Migration paths and precipitation mechanisms of ore-forming fluids at the Shuiyindong Carlin-type gold deposit, Guizhou, China. Ore Geology …
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The newly discovered Xinjiazui gold deposit situates on the northwestern margin of the Yangtze Block, China. Previously, the absolute age of gold metallogenesis in this area has yet to be well defined due to the lack of suitable dating minerals, significantly hindering the study of ore genesis and metallogenesis of gold deposits.
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Gold mineralized diorite beneath the Linglong ore field, North China craton: New insights into the origin . ... consistent with the gold-bearing pyrite Re-Os isochron age of 122.5 ± 6.7 Ma. Ore-re-
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The As-and Sb-bearing intractable gold ore was collected from Zhuzhou smelting plant, Hunan, China. The Mn(IV)-oxide ore was obtained from Chaoyang, Liaoning, China. The gold and manganese ores were air-dried, crushed, and ground to lower than 0.074 mm (corresponding to particle size of −0.038 mm 80 %) before being …
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Progressive crushing 40Ar/39Ar dating of a gold-bearing quartz vein from the Liaotun Carlin-type gold deposit, Guangxi, southern China. Article Open access 27 …
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As a result, the phase transition of gold-bearing pyrite and quartz could be enhanced by the synergistic pretreatment of CaO and Na 2 CO 3, resulting in an approximately 30% increase in both exposed gold content and gold leaching rate. This research proposes a promising green pretreatment with cost benefits for fine …
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Arsenic-bearing gold ore is easy to produce AsS 3 3, CNS, S 2 O 3 2, AsO 3 3 and AsO 4 3 in cyanide solution. These products decrease the leaching efficiency because they exhaust cyanide and form compact film on the surface of gold grain to separate CN and O 2 from the grains in the leaching process.
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The arsenic-bearing low-grade refractory gold ore (ALRG) used in this study is taken from the Paodaoling mine in Anhui province, China. The gold ore body mainly occurs in dacite porphyrite and is an independent gold deposit. ... Trans. Nonferrous Metals Soc. China, 28 (7) (2018), pp. 1433-1443, 10.1016/S1003-6326(18)64782-X. View PDF …
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1. Introduction. Located in the northern Hebei province, China, the Dongping gold deposit is the largest gold deposit in the province, with over 100 tons of proven gold reserves (Bao et al., 2014).The gold deposit was initially discovered in 1985 (Song and Zhao, 1996), and since mining began some 800 tons of gold ore had been milled per …
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Valence variation of arsenic in bioleaching process of arsenic-bearing gold ore. Author links open overlay panel Ri-cheng CUI, Hong-ying YANG, Sen CHEN, Shuo ZHANG ... Foundation item: Projects(50674029, 50874030) supported by the National Natural Science Foundation of China; Project(2006AA06Z127) supported by the National …
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Based on the spatial distribution and structural characteristics of gold deposits, the province can be divided into three ore belts, i.e., (from west to east) the Laizhou-Zhaoyuan-Pingdu, Penglai …
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Download Citation | On Jan 1, 2024, Qiu-Ming Pei and others published A rare sellaite-bearing orogenic gold deposit at Pianyanzi, Yangtze Craton: Ore genesis as implied from in-situ studies of ...
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The Xiaoqinling gold district is located at the boundary of Henan and Shanxi provinces in east-central China (Fig. 1).It is the second largest gold producing district in China, with more than 1200 gold-bearing quartz veins with a proven reserve of 390 t and an estimated reserve of 800 t Au (Zhou and Yao, 2008).Since the 1970s, more than 250 t …
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The Huilvshan gold deposit in West Junggar (Xinjiang province, NW China), was affected by three hydrothermal stages and thus provides an opportunity to examine complex ore-forming processes. The deposit consists of gold-bearing quartz-sulfide veins and disseminated sulfides, hosted within Early Carboniferous basalts and tuffs.
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The Dunbasitao deposit is the most important gold deposit discovered along the Armantai suture zone, East Junggar, NW China, which indicates the potential for future ore exploration in this area. …
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The ore-bearing geological bodies (host rocks) of the Jiaodong gold deposit are mainly Jurassic Linglong-type granite, followed by early Precambrian metamorphic rock series and Cretaceous Guojialing-type granite, and a small number of gold deposits occur in the Cretaceous Laiyang Group (Fig. 2).Linglong-type granite is the main ore-bearing …
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As one of the most important gold regions in China, the western Qinling region hosts over 50 gold deposits distributed within east-trending thrust and suture zones. ... Because of the enrichment of As, a large amount of arsenian pyrite and arsenopyrite are recognized as the main gold-bearing minerals. The ore-forming elements of Carlin-like ...
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