When.com Web Search

  1. Ad

    related to: porphyry copper wikipedia

Search results

  1. Results From The WOW.Com Content Network
  2. Porphyry copper deposit - Wikipedia

    en.wikipedia.org/wiki/Porphyry_copper_deposit

    Porphyry copper deposits represent an important resource and the dominant source of copper that is mined today to satisfy global demand. [6] Via compilation of geological data, it has been found that the majority of porphyry deposits are Phanerozoic in age and were emplaced at depths of approximately 1 to 6 kilometres with vertical thicknesses on average of 2 kilometres. [6]

  3. List of copper mines in the United States - Wikipedia

    en.wikipedia.org/wiki/List_of_copper_mines_in...

    Anaconda Copper: Porphyry copper: Closed in 1982; now a superfund site and tourist attraction Troy Mine: Troy, Lincoln County, Montana: Revett Minerals, Hecla Mining: Closed 2015; active between 1981 and 1983, and 2005–2015 Yerington - Anaconda: Lyon County, Nevada: Anaconda Copper: Closed since 1978 Pahaquarry: Warren County, New Jersey ...

  4. Porphyry - Wikipedia

    en.wikipedia.org/wiki/Porphyry

    Shoksha porphyry, quartzite of purple color resembling true porphyry mined near the village of Shoksha, Karelia, Russia; Porphyritic, the general igneous texture of a rock with two distinct crystal (phenocryst) sizes; Porphyry copper deposit, a primary (low grade) ore deposit of copper, consisting of porphyry rocks

  5. Escondida - Wikipedia

    en.wikipedia.org/wiki/Escondida

    The Escondida deposit is one of a cluster of porphyry coppers in an elongated area about 18 km north–south and 3 km east–west [2] and is associated with the 600 km long West Fissure (Falla Oeste) system, which is in turn associated with most of the major Chilean porphyry deposits.

  6. Robinson Mine - Wikipedia

    en.wikipedia.org/wiki/Robinson_Mine

    The Robinson Mine is a porphyry copper deposit located at Ruth, White Pine County, Nevada, in the Egan Range, 4 miles (6.4 km) west of Ely.The mine comprises three large open pits: Liberty, Tripp-Veteran and Ruth.

  7. Porphyry (geology) - Wikipedia

    en.wikipedia.org/wiki/Porphyry_(geology)

    "Imperial Porphyry" from the Red Sea Mountains of Egypt A waterworn cobble of porphyry Rhyolite porphyry from Colorado; scale bar in lower left is 1 cm (0.39 in). Porphyry (/ ˈ p ɔːr f ə r i / POR-fə-ree) is any of various granites or igneous rocks with coarse-grained crystals such as feldspar or quartz dispersed in a fine-grained silicate-rich, generally aphanitic matrix or groundmass.

  8. Resolution Copper - Wikipedia

    en.wikipedia.org/wiki/Resolution_copper

    Resolution Copper (RCM) is a joint venture owned by Rio Tinto and BHP formed to develop and operate an underground copper mine near Superior, Arizona, U.S. The project targets a deep-seated porphyry copper deposit located under the now inactive Magma Mine .

  9. Bornite - Wikipedia

    en.wikipedia.org/wiki/Bornite

    Bornite is an important copper ore mineral and occurs widely in porphyry copper deposits along with the more common chalcopyrite.Chalcopyrite and bornite are both typically replaced by chalcocite and covellite in the supergene enrichment zone of copper deposits.