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Magnitogorsk Arc

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Middle to Late Devonian Magnitogorsk intra-oceanic volcanic arc
Tract ID 142pCu8201
Country Kazakhstan-Russian Federation
Commodity Cu
Study area name Urals
Tectonic setting island arc
Deposit type porphyry copper
Grade-tonnage model General porphyry copper model (Singer and others, 2008)
Geologic age
Geologic feature age Middle to Late Devonian
Generalized age Paleozoic
Oldest rocks age 397.5Ma
Youngest rocks age 359.2Ma
Age range 38.3Ma
Identified Cu resources 28,700metric tons
Known prospects 3
Mean Cu (t/sq km) 255t/sq km
Map scales used 1M

Results of the assessment

Assessment date 2015
Estimators Jane M. Hammarstrom, Mark J. Mihalasky, Steve Ludington
Assessment depth 1km
Quantitative assessment Yes

Estimated number of deposits

Number of deposits Confidence level
2 90%
4 50%
6 10%
12 5%
18 1%
Mean estimated deposits 4.5 ±3.46 (0.77%)
Probability of mean 0.27
Probability of no copper 0.04

Estimated deposit density

Known
deposits		 Total
deposits		 Area
(sq km)		 Deposit density
per 100,000 sq km
4.5 64,760 7

Mean estimated tonnage

Copper 17,000,000
Molybdenum 470,000
Gold 440
Silver 5,500
Ore 3,500

Undiscovered copper resource

Confidence level 95% 90% 50% 10% 5%
Tonnage 300,000 1,200,000 8,200,000 41,000,000 67,000,000

Economic analysis

Fraser country Russian Federation
Fraser type 0.56%
Fraser high 0.44%
Typical cost 0.56%
High cost 0.44%
Infrastructure setting Mixed
Comments on depth default
Expected depth distribution
0 - 250m 0.25
250m - 500m 0.25
500m - 1km 0.5
Economically recoverable resources
Copper 10,000,000t
Molybdenum 210,000t
Gold 200t
Silver 3,000t
Probability no econ recoverable 0.32
Econ NPV 2,500x $1M
Exp dollars 31.26x $1M/100,000 sq km
Exp value class Medium

Bibliographic references

General Hammarstrom (written commun., 2015)
Economic Hammarstrom (written commun., 2015)
Hammarstrom (written commun., 2015)
Hammarstrom (written commun., 2015)

Deposits and prospects associated with this tract

Name Type State Country Development Details
Dunguray prospect Respublika Bashkortostan Russian Federation Occurrence Details
Salavat prospect Respublika Bashkortostan Russian Federation Occurrence Details
Voznesenskoe prospect Respublika Bashkortostan Russian Federation Occurrence Details
Yubileinoe deposit Aktyubinsk Kazakhstan Prospect Details