نتایج جستجو برای: ancient gold mining activities

تعداد نتایج: 575299  

2015
Jim Britton

1. Introduction Thompson-Okanagan-Cariboo is an administrative region in south-central BC, established after the province reorganized its natural resource agencies in 2010. Mining predates Confederation and today, the region is home to fi ve of BC's largest metal mines, several industrial mineral mines, and many small placer operations, gravel pits, and rock quarries. power), and skilled worker...

A. Ramezanzadeh, M. Hood

The first step in mining activities is rock excavation in both mine development and production. Constant pressure for cost reduction and creating an improved/safe work environment for personnel has naturally resulted in increased use of mechanical excavation systems in many mining operations. Also, mechanical excavation and mining is more compatible with automation, meaning possibility of reduc...

2009
Jakub KRONENBERG

Two case studies (Kumtor in the Kyrgyz Republic and Pascua-Lama in Chile–Argentina) are analysed, illustrating how gold mining interferes with glaciers and how this may be affected by changing perceptions on global warming. Although global warming presents new opportunities for the mining industry, increasing the physical accessibility of resources previously covered with glaciers, it may also ...

Journal: :Journal of public health policy 2011
Jill Murray Tony Davies David Rees

South African miners face an epidemic of occupational lung diseases. Despite a plethora of research on the mining industry, and the gold mining industry in particular, research impact (including disease surveillance) on policy implementation and occupational health systems performance lags. We describe the gold mining environment, and research on silicosis, tuberculosis, HIV and AIDS, and compe...

2005
Jeffrey Bury

Peru has been transformed over the course of the past decade into a neoliberal, mineral-based, export-oriented, country. The author evaluates the neoliberal transformation of the country in three parts. First he examines the economic and political transformation of the country in the early 1990s, particularly in terms of how the Peruvian state and economy were rapidly restructured according to ...

Journal: :Journal of Degraded and Mining Lands Management 2022

Mercury is a harmful element that commonly accumulates in the environment through anthropogenic activities such as gold mining. This study aimed to examine use of palm oil fuel ash (POFA) an agricultural waste remove mercury mining wastewater. The technology applied this was adsorption and precipitation. POFA first washed until neutral then mixed with effluent time variation 30, 60, 90 minutes....

2016
Samuel Obiri Precious A. D. Mattah Memuna M. Mattah Frederick A. Armah Shiloh Osae Sam Adu-kumi Philip O. Yeboah

Gold mining has played an important role in Ghana's economy, however the negative environmental and socio-economic effects on the host communities associated with gold mining have overshadowed these economic gains. It is within this context that this paper assessed in an integrated manner the environmental and socio-economic impacts of artisanal gold mining in the Tarkwa Nsuaem Municipality fro...

2010
Yuduo Lu

In recent years Tanzania has seen a rapid growth of its gold mining sector, the trend which has made the country the third largest gold producer in Africa. This growth is attributed much to the favorable investment climate created by the government for Multinational mining companies through the provision of various tax incentives and the ongoing discovery of new mining locations. Although tax i...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید