Deposits, prospects, and permissive tracts for porphyry and sediment-hosted copper resources worldwide, with estimates of undiscovered copper resources.
|Tract name||Deposit type||Geology|
|Pacific Margin||porphyry copper||Cretaceous through middle Tertiary volcanic and intrusive rocks representing a series of continental- and island-arc systems accreted and superimposed onto the paleomargin of northeast Asia.|
|Gobi-Amur||porphyry copper||Cambrian through Early Devonian igneous rocks that consist mostly of continental-margin arc rocks with some island-arc rocks at the eastern end; mostly covered by the Late Paleozoic Kazakh-Mongol Arc|
|Mongol-Sayan||porphyry copper||Cambrian through Silurian igneous rocks primarily in central and northern Mongolia and bordering parts of Russian Federation, including the Tuva-Mongol island arc and a variety of other calc-alkaline rocks.|
|Mongol-Altai||porphyry copper||A varied assemblage of Devonian through Early Permian igneous rocks primarily in Mongolia and Russian Federation that include primarily calc-alkaline continental-margin arc rocks.|
|Erdenet||porphyry copper||Middle Permian through Triassic igneous rocks in Russian Federation and Mongolia that formed during and after closure of the Mongol-Okhotsk ocean, apparently in a postsubduction environment.|