Marmot Ridge

Porphyry copper prospect in Nei Mongol, China

Names and other identifiers

Tract name Oyu Tolgoi (142pCu8506)
Site status prospect

Geographic location

Country China
State or province Nei Mongol
Geographic location 113.691, 43.73
Geologic map unit 113.691, 43.73
Nearby data

Geologic information

Deposit type Porphyry copper
Age determination method Geologic inference
Age range ~290 Ma (Variscan orogeny)
Age reference geologic inference
Associated rocks granodiorite porphyry, monzogranite porphyry, syenogranite porphyry, andesite, rhyolite
Tectonic setting island arc
Stratigraphic age Early Permian

Commodity and development information

Development status Prospect
Major commodities Cu, Mo, Au
Gold-Moly ratio -9999

Reference information

Comments Widespread Cu, Au, and Mo geochemical anomalies. Calc-alkaline volcano-intrusive complex with widespread hydrothermal alteration; multiple intrusive phases. Evolving view: porphyry Cu-Mo lodes, to Porphyry Mo + skarn Cu (King Solomon Mines Ltd., 2009).
Study area name Central Asian Orogenic Belt
References King Solomon Mines Ltd. (2009); King Solomon Mines Ltd. (2011?)
Site reference Mihalasky, Ludington, Hammarstrom, and others (2015)