Mining_Methods_UnderGround_Mining - Mining and Blasting
Mining_Methods_UnderGround_Mining - Mining and Blasting
Mining_Methods_UnderGround_Mining - Mining and Blasting
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el SOldadO, CHile<br />
Boomer drilling<br />
Scooptram<br />
loading<br />
Raise<br />
El Soldado underground mining schematic overview.<br />
total concentrator feed, but rather more<br />
of the contained copper.<br />
The sulphide plant's current capacity<br />
is 6.5 million t/year, of which the<br />
underground mine supplied 2 million t<br />
in 2006. This is expected to decrease to<br />
1.6 million t in 2007 as open pit output<br />
increases.<br />
Section of El Soldado mine <strong>and</strong> plant process.<br />
Development<br />
DTH Drilling<br />
Simba<br />
drilling<br />
Extraction level<br />
Problematical geology<br />
The El Soldado deposit is located in the<br />
Lower Cretaceous Lo Prado formation,<br />
<strong>and</strong> is thought to be of epigenetic origin.<br />
The main host rocks are trachytes, followed<br />
in importance by <strong>and</strong>esites <strong>and</strong><br />
tuffs. Copper mineralization occurs as<br />
5½" Simba<br />
DTH drilling<br />
Ore-pass<br />
Transport level<br />
2½"Simba<br />
radial drilling<br />
numerous isolated orebodies, with a<br />
strong structural control, located through-<br />
out an area 1,800 m-long by 800 mwide.<br />
The lateral limits of the orebodies<br />
are characterized by abrupt variations<br />
in the copper grade. The transition from<br />
high-grade mineralization of 1.2%<br />
to 2% Cu to low grade areas of 0.5%<br />
78 underground mining methods