Results 181 to 190 of about 6,139 (226)

Characterization and treatment of artisanal gold mine tailings

Journal of Hazardous Materials, 2008
The solid waste generated by artisanal gold mining, with high mercury and gold contents, can be found in several areas in the South America. The present study focused on the tailings of an artisanal gold mine area located in the Brazilian northeastern. Samples of the mine tailings were taken and used to perform a physical and chemical characterization ...
L R P, de Andrade Lima, L A, Bernardez, L A D, Barbosa   +2 more
openaire   +2 more sources

Artisanal Mining and Closure

2017
Illegal miners pan for gold in the tailings discharged by mines for the small amounts of gold that were not captured by processing. Artisanal mining can produce high incomes but causes human and environmental damage using mercury and other chemicals in the extraction of gold.
openaire   +1 more source

Processing centres in artisanal gold mining

Journal of Cleaner Production, 2014
Abstract The aim of this paper is to reflect on efforts made worldwide to construct processing centres where artisanal miners can visit to have gold extracted from ore “free” or for a nominal fee. These centres use inefficient grinding and amalgamation processes to extract less than 30% of the gold to give back to the miners.
Marcello M. Veiga, Gustavo Angeloci, Michael Hitch, Patricio Colon Velasquez-Lopez   +3 more
openaire   +1 more source

Artisanal Mining and Urbanization in Africa

The past three decades have witnessed a dramatic expansion of artisanal and smallscale gold mining (ASgM), transforming the economic and spatial opportunities of tens of millions of people. We show how this transformation has shaped urbanization in Sub-Saharan Africa since 1975.
Victoire Girard, Édouard Pignède
openaire   +1 more source

Artisanal jade mining in Myanmar

The Journal of Gemmology, 2020
Min Zar Ni Lin, , Loiacono, Francesco, Nan Sandi, , Win Min, , Vijge, M.J., Samu Ngwenya,   +5 more
openaire   +3 more sources

Mining what is not mine: Artisanal gold mining in Gwanda, Zimbabwe

The Extractive Industries and Society, 2023
Edmore Mwandiringana, Jingzhong Ye
openaire   +1 more source

Artisanal and small-scale mining

2021
Boris Verbrugge, Robin Thiers
openaire   +1 more source

Youth in Artisanal Gold Mining

2021
Eve Musvosvi Chandaengerwa, Michael Bourdillon   +1 more
openaire   +1 more source

Corporate social responsibility and artisanal mining: Towards a fresh South African perspective

Resources Policy, 2021
Vidette Bester, Liela Groenewald
exaly  

An integrated geoscience approach to effective formalization of artisanal mining in Mozambique: A case study of Namuno District, northeastern Mozambique

The Extractive Industries and Society, 2022
Manuel Nopeia
exaly