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Erdenet

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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.
Tract ID 142pCu8508a
Country Mongolia
Commodity Cu
Study area name Central Asia Orogenic Belt
Tectonic setting continental margin
Deposit type porphyry copper
Grade-tonnage model General porphyry copper model (Singer and others, 2008)
Geologic age
Geologic feature age Middle Permian through Triassic
Generalized age Paleozoic
Oldest rocks age 270.6Ma
Youngest rocks age 199.6Ma
Age range 71Ma
Identified Cu resources 9,000,000metric tons
Known prospects 63
Mean Cu (t/sq km) 553t/sq km
Map scales used 1M

Results of the assessment

Assessment date 2013
Estimators Alexeiev, D. (Russian Academy of Sciences); Bookstrom, Arthur A.(USGS); Frost, Thomas P. (USGS); Hammarstrom, Jane M. (USGS); Light, Thomas D. (USGS); Ludington, Steve (USGS); Mihalasky, Mark, J. (USGS); Panteleyev, Andre (XDM Geological Consultants)
Assessment depth 1km
Quantitative assessment Yes

Estimated number of deposits

Number of deposits Confidence level
2 90%
6 50%
20 10%
20 5%
20 1%
Mean estimated deposits 8.87 ±6.67 (0.75%)
Probability of mean 0.35
Probability of no copper 0.04

Estimated deposit density

Known
deposits		 Total
deposits		 Area
(sq km)		 Deposit density
per 100,000 sq km
1 9.87 61,430 16

Mean estimated tonnage

Copper 34,000,000
Molybdenum 920,000
Gold 850
Silver 11,000
Ore 6,800

Undiscovered copper resource

Confidence level 95% 90% 50% 10% 5%
Tonnage 280,000 1,700,000 20,000,000 81,000,000 120,000,000

Economic analysis

Fraser country Mongolia and Russian Federation
Fraser type 0.08%
Fraser high 0.91%
Typical cost 0%
High cost 1%
Infrastructure setting High cost
Comments on depth default
Expected depth distribution
0 - 250m 0.25
250m - 500m 0.25
500m - 1km 0.5
Economically recoverable resources
Copper 17,000,000t
Molybdenum 350,000t
Gold 290t
Silver 5,200t
Probability no econ recoverable 0.31
Econ NPV 2,900x $1M
Exp dollars 35.32x $1M/100,000 sq km
Exp value class Medium

Bibliographic references

General Mihalasky, Ludington, Hammarstrom, and others (2015)
Economic Robinson and Menzie (2012)
Mihalasky, M.J., Ludington, Steve, Hammarstrom, J.M., Alexeiev, D.V., Frost, T.P., Light, T.D., Robinson, G.R., Jr., Briggs, D.A., Wallis, J.C., and Miller, R.J., with contributions from Bookstrom, A.A., Panteleyev, Andre, Chitalin, Andre, Seltmann, Reimar, Guangsheng, Y., Changyun, L., Jingwen, M., Jinyi, L., Keyan, X., Ruizhao, Q., Jianbao, S., Gangyi, S., and Yuliang, D., 2015, Porphyry Copper Assessment of the Central Asian Orogenic Belt and eastern Tethysides—China, Mongolia, Russia, Pakistan, Kazakhstan, Tajikistan, and India: U.S. Geological Survey Scientific Investigations Report 2010–5090–X, 106 p. and spatial data, http://dx.doi.org/10.3133/sir20105090X.Robinson, G.R., Jr., and Menzie, W.D., 2012, Economic filters for evaluating porphyry copper deposit resource assessments using grade-tonnage deposit models, with examples from the U.S. Geological Survey global mineral resource assessment (ver 1.2, March 2014): U.S. Geological Survey Scientific Investigations Report 2010–5090–H, 21 p., http://pubs.usgs.gov/sir/2010/5090/h/.

Deposits and prospects associated with this tract

Name Type State Country Development Details
Arshaant prospect Selenge Mongolia Occurrence Details
Ar bulag prospect Bulgan Mongolia Occurrence Details
Azargyn davaa prospect Bulgan Mongolia Occurrence Details
Bayan gol prospect Bulgan Mongolia Occurrence Details
Bayan Kharaat prospect Selenge Mongolia Prospect Details
Bayangol prospect Arhangay Mongolia Occurrence Details
Bugsein gol prospect Hövsgöl Mongolia Occurrence Details
Burged hyar prospect Bulgan Mongolia Occurrence Details
Dalh ovoo prospect Selenge Mongolia Occurrence Details
Davaa prospect Dzavhan Mongolia Occurrence Details
Davaa prospect Bulgan Mongolia Occurrence Details
Deed muruu gol prospect Bulgan Mongolia Occurrence Details
Deed shumuultai prospect Dzavhan Mongolia Occurrence Details
Deed ust prospect Selenge Mongolia Occurrence Details
Erdenet deposit Orhon Mongolia Producer Details
Gezeg prospect Bulgan Mongolia Occurrence Details
Ikh khujirtyn khuree prospect Hövsgöl Mongolia Occurrence Details
Inget prospect Bulgan Mongolia Prospect Details
Jasyn buuts prospect Bulgan Mongolia Occurrence Details
Jimbe tolgoi prospect Hövsgöl Mongolia Occurrence Details
Khanjargalant uul prospect Selenge Mongolia Occurrence Details
Khar uul prospect Bulgan Mongolia Occurrence Details
Khavchuu prospect Bulgan Mongolia Occurrence Details
Khoo Ulaan Uul prospect Bulgan Mongolia Occurrence Details
Mogoin Gol prospect Bulgan Mongolia Prospect Details
Naran prospect Selenge Mongolia Occurrence Details
Naran Bulag prospect Dzavhan Mongolia Prospect Details
Ondor (South ore-junction) prospect Bulgan Mongolia Occurrence Details
Ondor ulaan prospect Dzavhan Mongolia Occurrence Details
Ormiin Tsagaan nuur prospect Bulgan Mongolia Occurrence Details
Ovgon sant uul prospect Selenge Mongolia Occurrence Details
Oyut Tolgoi prospect Dzavhan Mongolia Prospect Details
Oyuut Uul prospect Selenge Mongolia Prospect Details
Oyuutkhonkhor prospect Bulgan Mongolia Occurrence Details
Quartzitic prospect Dzavhan Mongolia Occurrence Details
Sairyn khondii prospect Arhangay Mongolia Occurrence Details
Shand prospect Bulgan Mongolia Prospect Details
Sharchuluut Uul prospect Bulgan Mongolia Prospect Details
Sharhad prospect Selenge Mongolia Occurrence Details
Sharkhad prospect Selenge Mongolia Occurrence Details
Sharon prospect Selenge Mongolia Occurrence Details
Tagiin nuur prospect Dzavhan Mongolia Occurrence Details
Teltiin gol prospect Selenge Mongolia Prospect Details
Toilbyn prospect Selenge Mongolia Occurrence Details
Tsagaan Chulut prospect Bulgan Mongolia Occurrence Details
Tsagaan Gozgor prospect Töv Mongolia Prospect Details
Turquoise prospect Bulgan Mongolia Prospect Details
Ulaan Del prospect Bulgan Mongolia Prospect Details
Ulaan Tolgoi prospect Bulgan Mongolia Occurrence Details
Undrah prospect Bulgan Mongolia Occurrence Details
Usanseer prospect Selenge Mongolia Occurrence Details
Zairan prospect Bulgan Mongolia Occurrence Details
Zos Uul prospect Dzavhan Mongolia Prospect Details
Zuukhin gol prospect Bulgan Mongolia Occurrence Details
Zuuvchiin gol prospect Selenge Mongolia Occurrence Details
Amarhiid prospect Selenge Mongolia Occurrence Details
Dartsagt prospect Selenge Mongolia Occurrence Details
Khoshoot gol prospect Bulgan Mongolia Occurrence Details
Khustai prospect Arhangay Mongolia Occurrence Details
Lam zah tolgoi prospect Selenge Mongolia Occurrence Details
Mogod prospect Bulgan Mongolia Occurrence Details
Orhin prospect Selenge Mongolia Occurrence Details
Tsogt tolgoi prospect Selenge Mongolia Occurrence Details
Zuun oortsog prospect Arhangay Mongolia Occurrence Details