Results 21 to 30 of about 390,267 (306)

Study on Process Mineralogy of a Refractory Gold Ore

Kuangchan zonghe liyong, 2022
Part of a gold deposit belongs to altered type gold deposit. The gold bearing alteration zone is composed of sericite, silicification and pyritization caused by hydrothermal alteration of granite.
Mingming Cai, Wenping Zhang, Chao Xu, Guangsheng Li, Fabo Huang, Xingfu Zhu   +5 more
doaj   +1 more source

Scale Inhibition Test Study on the Recycling Process of Heap Leaching Lean Solution in A Gold Mine in Xinjiang [PDF]

E3S Web of Conferences
In response to the scaling problem of equipment, pipelines, drip pipes, and other components in the recycling process of heap leaching poor solution in a gold mine in Xinjiang, the main components of the scaling material were determined by analyzing the ...
Lu Zhongbo, He Tao, Li Guangsheng, Wu Sheng, Xu Chao, Zhu Xingfu, Xu Qing   +6 more
doaj   +1 more source

Mineralization styles and structure-controlled mineralization rules of the Sanhe Pb-Zn Deposit in Inner Mongolia

Dizhi lixue xuebao, 2022
The Sanhe Pb-Zn deposit is studied in this paper through detailed field and underground geological investigations, structural geological surveys, drilling profile analysis combined with petrological and mineralogical analysis of ores and altered wall ...
BI Yaqiang, LI Yongxin, CHEN Wenke, MA Hubiao, YU Chao, FENG Yu, ZHOU Lin, YUE Lei, YANG Zaijing, HU Defeng   +9 more
doaj   +1 more source

Experimental study on mineral processing of shallow oxidation ore in a hydrothermal metasamatic sulfide gold mine [PDF]

E3S Web of Conferences
The ore produced by a gold mine in Fujian province belongs to hydrothermal metasomatism sulfide type gold (silver) ore, and the shallow oxidized ore of the deposit has a gold grade of 0.91g/t. In order to understand the selectability of this oxidized ore,
Qin Xiangwei, Li Guangsheng, Zhu Xingfu, Zhang Zhiming, Cai Mingming   +4 more
doaj   +1 more source

In-situ stress measurement and inversion analysis of the deep shaft project area in Sanshan Island based on hydraulic fracturing method

Dizhi lixue xuebao, 2023
The proposed 2000-meter-deep auxiliary shaft at the Xiling mine, Sanshan Island, Shandong Province, is an ultra-deep shaft construction project. Revealing the characteristics of the in-situ stress field in the shaft construction area is one of the ...
ZHU Mingde, WANG Zhaoya, ZHANG Yuezheng, LI Wenguang, HOU Kuikui, JI Hongguang, YIN Yantian, FU Zhen, HAO Yingjie   +8 more
doaj   +1 more source

A Cross-Sectional Survey on Knowledge and Perceptions of Health Risks Associated with Arsenic and Mercury Contamination from Artisanal Gold mining in Tanzania. [PDF]

, 2013
An estimated 0.5 to 1.5 million informal miners, of whom 30-50% are women, rely on artisanal mining for their livelihood in Tanzania. Mercury, used in the processing gold ore, and arsenic, which is a constituent of some ores, are common occupational ...
A Vreedzaa, AR Zxsmann, Deborah Dewey, Deborah SK Thomas, Elias Charles, Eveline Konje, G Hilson, Geological Survey of Denmark and Greenland – GEUS, H Taylor, ILO, J Conant, JB Jønsson, JB Wickre, JR Ikingura, K Islam, K Phan, M Argos, M Joseph, Mark Davey, MM Veiga, MMR Sarker, NJ Langford, P Van Straaten, PL Smedley, R Chouinard, S Bose-O'Reilly, S Bose-O’Reilly, S Wagner, Sospatro E Ngallaba, SW Al-Rmalli, Tanzania Commission for AIDS (TACAIDS), Zanzibar AIDS Commission (ZAC), National Bureau of Statistics (NBS), Office of the Chief Government Statistician (OCGS), Macro International Inc, The Mining, Minerals and Sustainable Development Project (MMSD), The National Academy of Sciences, United Nations Development Programme, WD James, WJ Crinnion   +35 more
core   +2 more sources

Research on the Efficient Recovery Technology of Gold Mineral in an Oxidized Ore [PDF]

E3S Web of Conferences
In view of the characteristics of high content of gold minerals in limonite and great difficulty of flotation recovery, the research on process mineralogy and efficient recovery technology was carried out respectively.
Ji Qiang, Li Guangsheng, Zhu Xingfu, Gao Tengyue, Cai Mingming   +4 more
doaj   +1 more source

Stability Analysis of Surrounding Rock of Large Section Ultradeep Shaft Wall

Advances in Materials Science and Engineering, 2021
In order to study the stability of deep surrounding rock during the excavation of new main shaft in Xincheng gold mine, a construction method suitable for large section ultradeep shaft is proposed.
Cheng Li, Wang Chunlong, Wang Xi, Chen Kexu   +3 more
doaj   +1 more source

Eureka and beyond: mining's impact on African urbanisation [PDF]

, 2012
This collection brings separate literatures on mining and urbanisation together at a time when both artisanal and large-scale mining are expanding in many African economies. While much has been written about contestation over land and mineral rights, the
Anderson D.M., Appiah K.A., Bank L., Barnes T.J., Beall J., Bebbington A., Brands H.W., Bridge G., Bridge G., Bryceson D.F., Bryceson D.F., Bryceson D.F., Bryceson D.F., Bryceson D.F., Bryceson D.F., Buijtenhuis R., Carstens P., Cooper F., Coquery-Vidrovitch C., Danny MacKinnon, De Boeck F., De Boeck F., De Boeck F., Deborah Bryceson, Dore E., Duffy R., Emel J., Ferguson J., Freudenberg W.R., Freudenburg W.R., Freund W., Freund W.M., Gluckman M., Godfrey B.J., Grätz T., Harries P., Hilson G., Hilson G., Hilson G., Holliday J.S., Jeeves A., Johnston R.J., Jønsson J.B., Kirk J.F., Laverty J.R., Lawrie M., Le Billon P., Le Billon P., Luning S.W.J., Mabin A., Mabin A., Mkandawire T., Moodie T.D., Morris R.J., Morris R.J., O'Connor A., Parks R., Peters K., Potts D., Rajak D., Rakodi C., Richards P., Ross M., Saad E.N., Smith M.D., Storey K., Swanson M., Tonts M., Vennetier P., Verhoeve A., Walker R.A., Walsh A., Walsh A., Welsby D.A., Werthman K., Wilks I., Wilson L.J., Wolpe H.   +77 more
core   +5 more sources

Investigating the Macro-Micromechanical Properties and Failure Law of Granite under Loading and Unloading Conditions

Advances in Civil Engineering, 2021
The excavation of rock significantly changes the initial stress state of rock slopes, which makes rock in complex loading and unloading conditions. However, the failure mechanisms and macro-micromechanical properties of rock under loading and unloading ...
Chao Peng, Jianbo Wang, Huanxin Liu, Guilin Li, Wei Zhao   +4 more
doaj   +1 more source