• Grasberg mine Wikipedia

    The Grasberg mine is the largest gold mine and the second-largest copper mine in the world. It is located in the province of Papua in Indonesia near Puncak Jaya, the highest mountain in Papua.It has 19,500 employees. It is mostly owned by Freeport-McMoRan (FCX), which owns 48.74% of PT Freeport Indonesia (PT-FI), the principal operating subsidiary in Indonesia, including 9.36% owned through

  • Country: Indonesia
  • Grasberg Mine, Indonesia NASA

    Located in the Sudirman Mountains of the Irian Jaya province of Indonesia, the Grasberg complex (also known as the Freeport Mine) is one of the largest gold and copper mining operations in the world. The Sudirman Mountains form the western portion of the Maoke Range that extends across Irian Jaya from the west to the east-southeast.

  • New milestones in Grasberg underground move Mining Magazine

    Jul 01, 2019· In June, at the DMLZ underground mine, located east of the Grasberg orebody and below the Deep Ore Zone (DOZ) mine, undercutting commenced on the second production block to establish two large blocks for ore extraction. In 2022, PT-FI expects to produce from three blocks in mine, spanning 200,000m 2.

  • Commentary: Despite p rise, copper at historic low

    Oct 13, 2020· (All other things being equal, Grasberg becomes primarily a gold mine, with by-product copper, at a gold p of US$2,110 per ounce.) Based on monthly averages, gold traded at a p of circa 4,000-7,000 times that of copper from late 1987 to mid-2005, before collapsing to multiples of below 3,000 in 2006-07.

  • Great Deposits Grasberg Part 3 Mining and Engineering

    Oct 07, 2015· In 1990 the open pit mine at the Grasberg Porphyry Cu-Au deposit was initiated. That reserve will be mined out in 2015 and operations will focus on the underground portions of the complex, mining the deeper levels of the Porphyry Cu-Au deposit by block caving, and at the same time, mining the other associated Cu-Au skarns. When up and running

  • The Giant Holes: The Grasberg Mine(Freeport), Papua

    Jul 22, 2015· The Grasberg Mine is the largest gold mine and the third largest copper mine in the world. It is located in the province of Papua in Indonesia near Puncak Ja

  • 作者: Vendora
  • The Environmental Disaster That is the Gold

    The Grasberg Mine is also located smack in the middle of Lorentz National Park, creating such a huge scar on the Earth that can be seen from space. The mine dumps about 80 million tons of waste

  • Indonesia’s Ore Export Ban and its Impact on Freeport

    Nov 15, 2017· Impact on Freeport-McMoRan: Freeport-McMoRan’s Grasberg mine has been operating since 1972, represents 73% of Indonesia’s copper production, is one of the country’s largest taxpayers, and produced 1/5 th of Freeport’s $14.8B in revenue in 2016.The political uncertainty and threat of an export ban posed considerable risk if applied to copper concentrates, potentially resulting in

  • Grasberg-Mine Wikipedia

    LageKlimaEntdeckungVorgeschichteWirtschaftStatistikKritikUmweltZugangDie Grasberg-Mine liegt in Westneuguinea im Pazifischen Feuerring auf 4270 m Höhe in unmittelbarer Nähe des höchstens Berges Ozeaniens, der Carstensz-Pyramide. Das Konzessionsgebiet wird nach Osten und Norden durch den Lorentz-Nationalpark begrenzt, nach Süden durch die Arafurasee. In derselben geologischen Verwerfung wie Grasberg liegen auch der Tagebau Ok Tedi, Lihir, Porgera und Panguna.[1]在de.wikipedia上查看更多信息
  • Great Deposits- Grasberg Part 2 Geology Geology for

    Oct 17, 2019· General Geology of the Grasberg-Ertsberg Mining district (from Gibbins 2006) In the Grasberg area, the oceanic geology (Cretaceous clastic sediments, and Paleocene Miocene Limestone) has been tilted vertically and thrust 5,000 meters (about 3 miles) above sea level, with relatively minor regional metamorphism .

  • Indonesia’s Ore Export Ban and its Impact on Freeport

    Nov 15, 2017· Impact on Freeport-McMoRan: Freeport-McMoRan’s Grasberg mine has been operating since 1972, represents 73% of Indonesia’s copper production, is one of the country’s largest taxpayers, and produced 1/5 th of Freeport’s $14.8B in revenue in 2016.The political uncertainty and threat of an export ban posed considerable risk if applied to copper concentrates, potentially resulting in

  • The world's biggest gold mines: Top ten

    The mine life of South Deep is expected to be extended up to 2092. 2. Grasberg gold mine 30.2Moz. Grasberg gold mine in the Papua province of Indonesia was discovered in 1988. The Grasberg mining operation consists of the Grasberg open-pit and four underground mines, namely DOZ, DMLZ, Big Gossan, and Grasberg Block Cave (GBC).

  • Matt Badiali's Green Rock "Anti-Element" Stock Exposed

    Jun 08, 2020· The mine he's talking about is Grasberg mine in Papua, Indonesia, which is the only large copper mine I could find in Indonesia. This mine has one of the largest known copper reserves in the world and the largest known gold reserve. It's mostly owned by the Freeport-McMoRan company, which matches up well for the stock he's teasing here.

  • Geological and geochemical zoning of the Grasberg Igneous

    Mar 01, 1994· The Grasberg Igneous Complex lies within the Ertsberg Mining District, located on the island of New Guinea in the rugged Jayawijaya Mountains of central Irian Jaya (Fig. 1 ). The Ertsberg or Gunung Bijih deposit, for which the district is named, is located four km west of Puncak Jaya, the highest peak on the island of New Guinea (Fig. 2).

  • How is gold mined

    The main purpose of the mining operation is the recovery of Copper, sand, gravel or other products but significant quantities of Gold exist to make byproduct mining a profitable venture. An example of this kind of mining would be the Grasberg mine is Papua, Indonesia, which was developed for

  • How much gold is there left to mine in the world

    Sep 24, 2020· Other significant sources of gold consist of the very deep Mponeng mine in China, the Super Pit and Newmont Boddington mines in Australia, Indonesia’s Grasberg Mine, and mines in Nevada, United States. China is presently the world’s greatest miner of gold, while Canada, Russia, and Peru are likewise significant manufacturers.

  • West Papua: mining in an occupation forgotten by the world

    Linked to all this is a United States-based mining giant, Freeport-McMoRan. Though its Phoenix, Arizona headquarters is almost 15,000 kilometres away from the Indonesian capital of Jakarta, it is the country’s largest taxpayer. In 2014, Freeport contributed a massive US$1.5 billion to the Indonesian state coffers.

  • Environmental impact of mining in the rainforest

    In the Amazon rainforest most mining today revolves around alluvial gold deposits. Due to the meandering nature of Amazon rivers, gold is found both in river channels and on the floodplains where rivers once ran. These deposits are actively mined by large-scale operators and

  • Amazon mining WWF

    Mercury also ends up in the atmosphere, from where it returns to forests. For example, 90% of fish caught by rural villagers south of gold mining areas of the Tapajós River in Brazil were found to be contaminated with methyl mercury 2. This chemical is dangerous for the nervous system as

  • Deforestation caused by mining mining in deforestation

    Mar 14, 2017· Grasberg Mine. The Grasberg Mine complex from space. Puncak Jaya is the high point of the snow-covered ridge to the east of the mine. The peak is at 4,884 metres (16,024 ft) above sea level. The rim of the open pit is at about 4270 meters ( 14 010 ft) . The Grasberg Mine is the largest gold mine and the third largest copper mine in the world.

  • Gold mining Wikipedia

    It is impossible to know the exact date that humans first began to mine gold, but some of the oldest known gold artifacts were found in the Varna Necropolis in Bulgaria.The graves of the necropolis were built between 4700 and 4200 BC, indicating that gold mining could be at least 7000 years old. A group of German and Georgian archaeologists claims the Sakdrisi site in southern Georgia, dating

  • Grasberg Wikipedia

    Grasberg er ei gull- og koppergruve som ligger i provinsen Papua i Indonesia.Gruva er verdens nest største koppergruve og den som har de største kjente reservene av gull. Malmen brytes i et stort dagbrudd og to gruver.Gullreservene blei berekna til 70.968 millioner unser i 2012. I 2017 blei det solgt 444.974 tonn kopper og 1,5 millioner unser gull fra Grasberg.

  • Our Mines De Beers Group

    Our global approach to mining spans two continents and four countries Botswana, Canada, Namibia and South Africa. Diamonds offer huge economic and