The Bronze Age in Britain is now a term often used to include both the first use of copper c . 2400 bc and also tin-bronze from 2100 , all which required extensive copper. Prehistoric mining for this metal has been identified surface underground workings Parys Mine, Mynydd Parys, Anglesey, although almost are obscured by deep spoil more recent industrial period. These copper-bearing ores bedded...

due to environmental problems caused by mining activities, it is necessary to study and investigation the concentrations of the pollutants caused by this activities such as heavy metals. the aim of this study is the determination of the concentration of heavy metals cu, pb and zn in roots of two species of artemisia including artemisia aucheri and artemisia sieberi in the surrounding natural la...

This paper presents the results of a numerical analysis impact rock mass geomechanical parameters on stability preparatory headings located within Legnica-Glogow Copper District. The shows calculations prepared for driven in two types with different strength and deformation parameters, which allow illustrating their influence safety mining performed underground copper ore mines. Numerical model...

Background: Barapukuria coal mine which has been operating from 2002 is situated in such a location that is dependent on agriculture. Pollution from Coal mining poses a huge risk to the ecosystem and surrounding soil. So, there could be some impact of the Barapukuria coal mine on the surrounding soil. The main aim of this study is to identify the soil quality of the study area and also see how ...

the chah morra cu occurrence is located 15 to 20 km north of toroud village, south of shahrood. in this area, cu deposits are hosted by the andesitic sequence and most of rocks in this area are composed of andesite. veins contain minerals such as digenite, bornite, covellite, malachite, cuprite, tenorite, native copper and fe oxide and hydroxides. also some orthomagmatic magnetite and chalcopyr...