The ore type is composed of veinlet-disseminated type and gold-bearing polymetallic quartz vein type. Pyrite, constituting over 95% of the entire sulfide content, stands out as the predominant ore mineral, trailed by chalcopyrite, sphalerite, galena, molybdenite, tetradymite, electrum, etc. ... Electron microprobe analyses of ore minerals …
The treatment of a copper sulphide-bearing gold ore by direct cyanide leaching, ammonia pretreatment and ammoniacal cyanide leaching was investigated. Dissolution behaviour of gold and copper in these leaching systems was demonstrated. ... Transactions of Nonferrous Metals Society of China, Volume 25, Issue 2, 2015, pp. 608 …
ARTICLE Comparison of the native antimony-bearing Paiting gold deposit, GuizhouProvince,China,withCarlin-typegolddeposits,Nevada, USA Zhuo-Jun Xie1,2,3 & Yong Xia1 & Jean S. Cline3 & Bao-Wen Yan4 ...
The Haigou lode deposit, containing 40 t of gold at an average grade of 3.5 g/t, is one of the largest deposits in the Jiapigou gold belt located along the eastern segment of the northern margin of the North China Craton. The deposit comprises 15 gold-bearing quartz veins hosted in a Carboniferous monzonite–monzogranite stock.
The Haigou lode deposit, containing 40 t of gold at an average grade of 3.5 g/t, is one of the largest deposits in the Jiapigou gold belt located along the eastern …
Many gold-bearing tailings are produced in the mining, dressing and smelting process of gold-bearing minerals, and they contain gold, silver and other …
The Jiangnan orogen, one of the largest gold-producing areas in China, has experienced multiple orogenic events with complex structural over that is marked …
A magmatic-hydrothermal origin or mantle-derived fluid source has been proposed for the giant gold deposits of the Jiaodong District in the eastern North China …
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, Ma'anqiao, ... Twenty-six gold-bearing quartz veins and ore samples were selected from the cross-vein section of the 64a − 72 exploration line at 1190 m elevation of the deposit ...
Request PDF | Gold distribution and source of the J4 gold-bearing breccia pipe in the Qiyugou district, North China Craton: Constraints from ore mineralogy and in situ analysis of trace elements ...
Fleming et al. (2011) pointed out that as of 2009, more than 20% of the global gold production was from copper -gold ores. The process of gold recovery from these ores is often associated with ...
DOI: 10.1016/j.oregeorev.2024.106064 Corpus ID: 269691155; Age and petrogenesis of ore-bearing porphyry from the Houyu Mo-polymetallic deposit, central North China Craton @article{Li2024AgeAP, title={Age and petrogenesis of ore-bearing porphyry from the Houyu Mo-polymetallic deposit, central North China Craton}, author={Zhi-Dan Li and …
The Haigou lode deposit, containing 40 t of gold at an average grade of 3.5 g/t, is one of the largest deposits in the Jiapigou gold belt located along the eastern segment of the northern margin of the North China Craton. The deposit comprises 15 gold-bearing quartz veins hosted in a Carboniferous monzonite-monzogranite stock. Although many studies …
The Jiangnan Orogenic Belt (JOB), a significant Au-polymetallic metallogenic province in China, hosts more than 250 deposits with about 970 t gold in …
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, …
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 …
The Shenjiayao gold deposit (8.50 t Au, average grade of 2.21 g/t), hosted in a Precambrian metamorphic terrane, is located in the Xiaoshan region on the southern margin of the North China Craton. The gold mineralization is characterized by vein ores comprising native gold and gold-bearing pyrite.
Carbon–arsenic-bearing gold ore is a typical complex refractory gold resource. Traditionally, xanthate was often used as a flotation agent to separate gold minerals. But, in this paper, in order to reduce the cost of the agent, kerosene was used as an auxiliary collector, and the gold grade and recovery rate were increased by about 10 …
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 …
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 …
Greater gold extraction occurred when the ore samples were treated by a combination of bio-treatment and bio-oxidation with Trametes versicolor, resulting in 87.00% 95.25% extraction. The gold leaching rate of carbon-bearing high-arsenic refractory gold concentrate of Guangdong province is only 15.02%.
(A) Geological map of the Linglong ore field (modified from Yang et al., 2016; Shandong Zhaojin Group, Co., Ltd., 2015), showing the distribution of major faults and representative gold deposits ...
Arsenious and sulphur-bearing micro-disseminated gold ore is a kind of typical refractory Carlin-Type. The gold in Carlin-Type gold ore grains is distributed finely, existing as invisible or submicroscopic …
Therefore, the Te, Bi and Pb played a significant role in gold mineralization in As-deficient ore fluids in the J4 gold-bearing breccia pipe from the Qiyugou district. ... The Qiyugou is the earliest discovered area for gold-bearing breccia pipes in China, which is also the only gold deposit associated with breccia pipes in the Xiong'ershan ...
The Pianyanzi gold deposit is situated at the western margin of the Yangtze Craton, and represents a rare sellaite-bearing orogenic gold deposit. This deposit …
bearing gold ores Xiaoguang Zhang*, Guangsheng Li, Xingfu Zhu, Guanglin Qin Metallurgical laboratory branch of Shandong gold mining technology co. LTD., Shandong, Laizhou, 261400, China Abstract: Carbon-bearing gold ore is one of the important refractory gold resources, which can not be effectively utilized by conventional treatment …
In this paper, the removal of arsenic from arsenic-bearing gold ore through air oxidation and sodium hydroxide leaching with microwave irradiation was studied. Firstly, single-factor experiments were carried out. The results indicated that the removal rate of arsenic was influenced by the sodium hydroxide concentration, ratio of liquid to solid, …
9.3.1 Magmatic Ore Deposits 9.75 Gold-bearing quartz vein at the Nalunaq Gold Mine in Southern Greenland. Meter stick for scale. ... Australia dominates the world iron market, producing 36% of all iron ore. …
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.
Introduction. Jiaodong houses the largest concentration of gold deposits in China, with an area of 16,522 km 2 and gold reserves of more than 5000 t. It is the third …
The ores are hosted by rocks of the Middle Triassic Baifeng Formation, which is composed of calcareous sandstone and mudstone. Unlike other Carlin-like gold deposits in this area, the main gold-bearing mineral of the Jinya gold deposit is arsenopyrite (20.5% of the sulfide minerals), with 78.6% Au content in ore (Li and Ye, 1996).
The H O isotope data show that the ore-forming fluid of gold-silver-bearing quartz vein is closely related to the magmatic-metamorphic-fluid event in the Yushishan deposit (Liu and Jiang, 2021, Liu et al., 2022a), and the mixing of fluid with meteoric water occurred at late stage (e.g., Chen et al., 2012b, Goldfarb and Groves, 2015, Liu et al ...
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 …
collected from Auhui, China. The gold ore belongs to low grade porphyritic arsenic-bearing gold ore with a gold content of 0.85 g/t, arsenic content of 0.19%, sulfur content of 2.27% and iron content of 3.21%. Particle size distribution of the ore after crushing by a roller was 0−1 mm accounting for 27.76%, 1−2 mm for 19.55%, 2−3.35 mm for
The East Kunlun orogenic belt (EKOB) is an important polymetallic (Au, Cu and Fe) belt in western China (Fig. 1 a).The gold mineralization age shows two peaks of late Paleozoic and early Mesozoic (Triassic), which reveals that the gold mineralization was mainly formed in the collision or post-collision period related to the closure of Prototethys …
The δ 34 S values of gold-bearing pyrite and arsenopyrite in Late Triassic veins at the Zhengchong, Yanlinsi, and Xiaojiashan deposits range from –2.1 to –0.1‰, ... China, working on the ore genesis and structural controls of orogenic gold deposits and granite pegmatite-related Li-Rb-Cs mineralization in Hunan Province, South China. He ...
It was characterized by multistage magmatism, deformation, metamorphism, and gold events (Figs. 1, 2;Pirajno and Bagas, 2002;Wang et al., 2013; and hosts more than 250 gold deposits and ...
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 Reviews ...
Semantic Scholar extracted view of "Gold distribution and source of the J4 gold-bearing breccia pipe in the Qiyugou district, North China Craton: Constraints from ore mineralogy and in situ analysis of trace elements and S-Pb isotopes" by Suo-Fei Xiong et al.
Heap biooxidation method was used to evaluate the availability of Paodaoling gold ore in Anhui province, China. 15,000 tons of gold ores (≤ 10 mm in diameter) were bioxidized under mesophilic conditions. Under the synergistic effect of microbial community, arsenic and sulfur were oxidized by 42% and …
