Saran Uul

Porphyry copper prospect in Bayanhongor, Mongolia

Names and other identifiers

Tract name Mongol-Altai (142pCu8507)
Site status prospect

Geographic location

Country Mongolia
State or province Bayanhongor
Geographic location 100.6022, 45.763
Geologic map unit 100.6022, 45.763
Nearby data

Geologic information

Deposit type Porphyry copper
Age (Ma) 327Ma
Age determination method K-Ar muscovite (inferred from age of Taats Gol)
Age range 327 ±7 Ma
Age reference Watanabe and others (1999)
Minerals biotite, bornite, chalcopyrite, fahlore, galena, gold, hematite, magnetite, molybdenite, pyrite, sphalerite
Associated rocks diorite porphyry, granodiorite porphyry, hornfels, syenite porphyry,limestone, metamorphic rocks,dacitic tuff, sandstone, siltstone, tuffaceous sedimentary rocks
Tectonic setting continental margin
Stratigraphic age Carboniferous

Commodity and development information

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

Reference information

Comments The resource (101 Mt at 0.06% Cu) reported in Singer and others (2008) is only partial, but drilling has apparently been suspended. Rock-chip sampling: 0.1–5% Cu, 0.5–4.9 g/t Au, and 100–2000 ppm Mo. Drilling: 150 m at 0.37% Cu and 0.08 g/tAu; 64 m at 0.44% Cu and 0.06 g/t Au; 80 m at 0.35% Cu and 0.07 g/t Au.
Study area name Central Asian Orogenic Belt
References Singer and others (2008); Ivanhoe Mines Ltd. (2001b); Ivanhoe Mines Ltd. (2004c); Jargalsaihan and others (1996); Nokleberg and others (2003); Nokleberg and others (2006); Sotnikov and others (1985); Watanabe and others (1999); Kirkham and Dunne (2000)
Site reference Mihalasky, Ludington, Hammarstrom, and others (2015)
Ivanhoe Mines Ltd., 2001b, Ivanhoe Mines Ltd. acquires four new copper-gold projects in Mongolia: Ivanhoe Mines Ltd. press release, October 15, 2001, 5 p., accessed December 4, 2013, at
Ivanhoe Mines Ltd., 2004c, The Saran Uul project information: Ivanhoe Mines Ltd. Web page, accessed May 1, 2012, at [Web page no longer available.]
Jargalsaihan, D., Kaziner, M., Baras, Z., and Sanjaadorj, D., eds., 1996, Guide to the geology and mineral resources of Mongolia: Ulaanbaatar, Geological Exploration, Consulting and Services Co., 329 p.
Kirkham, R.V., and Dunne, K.P.E., comps., 2000, World distribution of porphyry, porphyry-associated skarn, and bulk-tonnage epithermal deposits and occurrences: Canada Geological Survey Open File 3792a, 26 p. and 1 diskette. (Also available at, W.J., Bounaeva, T.M., Miller, R.J., Seminskiy, Z.V., and Diggles, M.F. eds., 2003, Significant metalliferous and selected non-metalliferous lode deposits, and selected placer districts of northeast Asia: U.S. Geological Survey Open-File Report 03-220, 422 p., CD-ROM. (Also available at, W.J., Miller, R.J., and Diggles, M.F., eds., 2006, Geographic information systems (GIS) spatial data compilation of geodynamic, tectonic, metallogenic, mineral deposit, and geophysical maps and associated descriptive data for northeast Asia: U.S. Geological Survey Open-File Report 2006-1150, 11 p. and digital data, CD-ROM. (Also available at, D.A., Berger, V.I., and Moring, B.C., 2008, Porphyry copper deposits of the world—Database and grade and tonnage models, 2008: U.S. Geological Survey Open-File Report 2008-1155, [45] p. and digital data, accessed December 31, 2013, at
Sotnikov, V.I., Berzina, A.N., Zhamsran, M., Garamzhav, D., and Bold, D., 1985, Copper deposits of Mongolia: Novosibirsk, Nauka, Transactions of the Joint Soviet-Mongolian Scientific-Research Expedition, v. 43, 223 p.
Watanabe, Yasushi; Turmagnai, Daramjav; Byambasuren, Dolgor; Oyunchimeg, Gurjav; Tsdenbaljir, Yadamtsoo; and Sato, Yoichi, 1999, Geology and K-Ar ages of the South, Huh Bulgiin Hundii, Saran Uul, Taats Gol and Han Uul deposits in the Bayankhongor region, Mongolia: Resource Geology, v. 49, no. 3, p. 123–130. (Also available at