نتایج جستجو برای: surface mining

تعداد نتایج: 719231  

The uncontrolled spread of illegal artisanal small-scale gold mining (ASM), popularly termed “galamsey” in Ghana, has, for decades, impacted adversely upon water bodies, soils, wildlife, human health, and safety. A lack of understanding, however, of the types of galamsey, their operational attributes, and their relative impacts has unfortunately hindered an effective policy response despite num...

Journal: :Procedia Earth and Planetary Science 2009

Journal: :journal of mining and environment 0
j. mantey gold fields ghana limited, environmental department, tarkwa-ghana f. owusu-nimo kwame nkrumah university of science and technology (knust), civil department, kumasi-ghana k.b. nyarko kwame nkrumah university of science and technology (knust), civil department, kumasi-ghana a. aubynn ghana minerals commission, accra-ghana

the uncontrolled spread of illegal artisanal small-scale gold mining (asm), popularly termed “galamsey” in ghana, has, for decades, impacted adversely upon water bodies, soils, wildlife, human health, and safety. a lack of understanding, however, of the types of galamsey, their operational attributes, and their relative impacts has unfortunately hindered an effective policy response despite num...

2008
S. J. Mao S. L. Peng J. Z. Chen M. Li

Surface-underground contrast plan, as one of the most important engineering maps in the general safety management and production of the coalmine, overlays both topographical map and underground mining engineering plan together, and means to describe the mining area, underground roadway layout, location of working face, rock movement, hydrological distribution, the impact of excavation on the en...

Journal: :Journal American Society of Mining and Reclamation 1986

R. N. Singh, V. F. Navarro-Torres

Water has an important role in creating pollution problems in the mining regimes influencing the surrounding surface environment. The purpose of this study is to make an assessment of groundwater quality in an underground mine site in Portugal with a view of determining the pollution potential of groundwater. In the corresponding surface area of this underground mine, intersec...

Journal: :journal of mining and environment 2011
v. f. navarro-torres r. n. singh

water has an important role in creating pollution problems in the mining regimes influencing the surrounding surface environment. the purpose of this study is to make an assessment of groundwater quality in an underground mine site in portugal with a view of determining the pollution potential of groundwater. in the corresponding surface area of this underground mine, intersections of fou...

Journal: :مهندسی منابع معدنی و هیدروکربنی 0
فرزاد غلامیان . حمید آقاجانی . محمود میرزایی .

the gravimetric method is one of the most effective ways for the detection of subsurface structures such as tunnels, faulting, mineral deposits with the required density difference, especially in areas with rough topography and tectonized formations. it is possible to provide a more suitable model for better interpretation of the gravity anomaly. inverse modeling of gravity data is the most eff...

Theoretical review of ‘mining pit lakes’ indicates that like natural lakes such lakes display a huge diversity. They are typically in a non-equilibrium state with respect to their surroundings. Hence, at the decommissioning phase of mining operation a detailed technical study are required on different aspects of such created water bodies considering its morphometry, geology, hydrology, water qu...

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