Results 41 to 50 of about 2,853,826 (347)

Governance challenges of small-scale gold mining in Ghana: Insights from a process net-map study

, 2021
The artisanal small-scale mining (ASM) sector – commonly described as low-tech, labor-intensive mineral extraction and processing, in developing countries, is increasingly associated with the use of heavy earth moving machines and hazardous chemicals for
Ferdinand Adu-Baffour, Thomas Daum, R. Birner   +2 more
semanticscholar   +1 more source

Assessing the effects of gold mining on environment: A case study of Shekiso district, Guji zone, Ethiopia

Heliyon, 2022
Environmental sustainability has become a serious problem in the world. Similarly, on environmental of the mining in the Shekiso district has become a severe issue at present.
Birhanu Bekele Mencho
semanticscholar   +1 more source

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

The cyanide revolution: Efficiency gains and exclusion in artisanal- and small-scale gold mining

, 2021
Since its advent at the end of the nineteenth century, cyanide processing facilitated the intensification and global expansion of industrial gold mining.
Boris Verbrugge, Cristiano Lanzano, M. Libassi   +2 more
semanticscholar   +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

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

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 ...
Charles, Elias, Thomas, Deborah S K, Konje Eveline, Eveline Konje, Davey, Mark, Dewey, Deborah, Konje, Eveline, Dewey Deborah, Ngallaba Sospatro E, Davey Mark, Deborah Dewey, Sospatro E Ngallaba, Elias Charles, Charles Elias, Mark Davey, Thomas Deborah SK, Ngallaba, Sospatro E, Deborah SK Thomas   +17 more
core   +2 more sources

Human insecurities in gold mining: A systematic review of evidence from Ghana

The Extractive Industries and Society, 2021
Adverse mining effects, notably the uncontrolled spread and consequences of artisanal and small-scale mining (ASM), are growing concerns in sub-Saharan Africa.
M. Ros-Tonen, Jane J. Aggrey, D. Somuah, M. Derkyi   +3 more
semanticscholar   +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

Mining for therapeutic gold [PDF]

Nature Reviews Drug Discovery, 2011
A comprehensive and collaborative strategy to enable the investigation of new uses of approved and abandoned drug compounds could advance translational research.
openaire   +2 more sources