Prospecting for minerals by https://padlet.com/woolleyt01/d92dz0j2pg88 different types of minerals en-us 2016-10-26 00:40:06 UTC 2024-06-25 08:58:06 UTC hello@padlet.com woolleyt01 https://padlet.com/woolleyt01/d92dz0j2pg88/wish/133199923 2016-10-26 01:01:41 UTC https://padlet.com/woolleyt01/d92dz0j2pg88/wish/133199923 Shallow surface mining  woolleyt01 https://padlet.com/woolleyt01/d92dz0j2pg88/wish/133200402 shallow surface extraction of alluvial deposits, soil or weathered rock. It varies from removal of surface material of a few centimetres in depth to shallow pits up to several metres deep]]> 2016-10-26 01:05:37 UTC https://padlet.com/woolleyt01/d92dz0j2pg88/wish/133200402 open-cut mining woolleyt01 https://padlet.com/woolleyt01/d92dz0j2pg88/wish/133200636 involves removal of surface vegetation, topsoil and any overburden to uncover mineral deposits that are close to the surface. In Victoria, open-cut gold mines are typically up to 60 metres deep and open-cut brown coal mines more than 100 metres deep. Mining may or may not involve blasting, depending on the rigidity of the material being mined.]]> 2016-10-26 01:07:28 UTC https://padlet.com/woolleyt01/d92dz0j2pg88/wish/133200636 nderground mining woolleyt01 https://padlet.com/woolleyt01/d92dz0j2pg88/wish/133200821 Access to underground ore is gained by shaft (vertical or inclined), adit (horizontal tunnel) or decline (inclined tunnel). Mining excavation is generally achieved by drilling and blasting. Waste rock and mineral ore are transported to the surface by trucks or skips and waste rock is often used to backfill underground voids (stopes).
Other mining activities include gold ‘tailings treatment’, which refers to the reprocessing of previous mining waste product (resulting from the separation of valuable minerals and ore) to remove any remaining gold. Mining also usually includes associated ore processing facilities and waste rock and tailing disposal facilities.

]]> 2016-10-26 01:09:08 UTC https://padlet.com/woolleyt01/d92dz0j2pg88/wish/133200821 woolleyt01 https://padlet.com/woolleyt01/d92dz0j2pg88/wish/133201561 2016-10-26 01:15:34 UTC https://padlet.com/woolleyt01/d92dz0j2pg88/wish/133201561