super pit blast kalgoorlie
super pit blast kalgoorlie
super pit blast kalgoorlie
إظهار الرسائل ذات التسميات mining in surface. إظهار كافة الرسائل
إظهار الرسائل ذات التسميات mining in surface. إظهار كافة الرسائل
الثلاثاء، 5 أغسطس 2014
Super Pit - Kalgoorlie
Super Pit - Kalgoorlie
The Fimiston Open Pit, colloquially known as the Super Pit, is Australia's largest open cut gold mine. The Super Pit is located off the Goldfields Highway on the south-east edge of Kalgoorlie, Western Australia.
The pit is oblong in shape and is approximately 3.5 kilometres long,
1.5
kilometres wide and 570 metres deep. At these dimensions, it is
large enough to be seen from space.
The Super Pit is owned by Kalgoorlie Consolidated Gold Mines Pty Ltd, a company owned 50/50 by Barrick Gold Corporation and Newmont Mining Corporation. The mine produces 850,000 ounces (28 tonnes) of gold per year, and employs around 550 employees directly on site
(français )
Super Pit est une mine d'or à ciel ouvert située près de Kalgoorlie en Australie-Occidentale. Elle mesure 3,8 km de long, 2 km de large et 400 m de profondeur, en étant ainsi la grande mine d'or à ciel ouvert d'Australie. Elle est détenue à 50/50 par Barrick Gold et Newmont Mining. Le site emploie 550 personnes avec une production de 28 tonnes d'or par an..
الخميس، 10 يوليو 2014
What Is Surface Mining?
.
Surface mining is a method of mining used to extract minerals and metals
which are near the surface of the Earth. There are three basic types of surface
mining: open pit mining, strip mining, and quarry
mining. These methods are much more economical than underground mining, yet they
can have a more significant impact on the surrounding environment unless
efforts are taken to reclaim the land.
Open pit mining involves excavation which looks like a terrace. Cuts are
made into the ground, and the area at that depth is worked around the
circumference of the mine. Once the minerals and waste have been removed from
the ledge, called a bench, the excavation moves down a level and work begins
again. This type of surface mining, also known as hard rock mining, is
typically employed to extract metal ores, like copper, gold, iron, and
aluminum, and other minerals.
Strip mining is a form of
surface mining that is primarily used for coal excavation. The rock and dirt covering the ore is removed one strip at a
time. Once the ore has been taken from the first strip, a second strip is cut
next to it, and the waste from the second strip is used to back fill the first.
This goes on until the ore is exhausted, and then the waste from the first
strip is used to fill in the last
