Late Paleozoic Balkhash-Ili magmatic arc (north)

Early Carboniferous to Permian magmatic-arc and post-collisional rocks
Tract ID 142pCu8003b
Country Kazakhstan
Commodity Cu
Study area name West Central Asia
Tectonic setting continental margin
Deposit type porphyry copper
Grade-tonnage model General porphyry copper model (Singer and others, 2008)
Geologic age
Geologic feature age Early Carboniferous through Permian
Generalized age Paleozoic
Oldest rocks age 359.2Ma
Youngest rocks age 251Ma
Age range 108.2Ma
Identified Cu resources 5,000,000metric tons
Known prospects 5
Mean Cu (t/sq km) 278t/sq km
Map scales used 200K, 1.5M

Results of the assessment

Assessment date 2009
Estimators Byron R. Berger, Jane M. Hammarstrom, John C. Mars, Jeffrey D. Phillips, David M. Sutphin, Michael L. Zientek
Assessment depth 1km
Quantitative assessment Yes

Estimated number of deposits

Number of deposits Confidence level
1 90%
5 50%
12 10%
12 5%
12 1%
Mean estimated deposits 5.83 ±3.97 (0.68%)
Probability of mean 0.32
Probability of no copper 0.06

Estimated deposit density

Known
deposits
Total
deposits
Area
(sq km)
Deposit density
per 100,000 sq km
5 10.83 79,040 14

Mean estimated tonnage

Copper 22,000,000
Molybdenum 590,000
Gold 560
Silver 6,900
Ore 4,500

Undiscovered copper resource

Confidence level 90% 50% 10% 5%
Tonnage 540,000 12,000,000 54,000,000 83,000,000

Economic analysis

Fraser country Kazakhstan
Fraser type 0.22%
Fraser high 0.79%
Typical cost 0%
High cost 1%
Infrastructure setting High cost
Comments on depth I=V; depth favorable
Expected depth distribution
0 - 250m 0.25
250m - 500m 0.25
500m - 1km 0.5
Economically recoverable resources
Copper 11,000,000t
Molybdenum 230,000t
Gold 190t
Silver 3,300t
Probability no econ recoverable 0.47
Econ NPV 1,900x $1M
Exp dollars 14.92x $1M/100,000 sq km
Exp value class Low

Bibliographic references

General Berger and others (2014)
Economic Robinson and Menzie (2012)

Deposits and prospects associated with this tract

Name Type State Country Development Details
Borly deposit Qaraghandy oblysy Kazakhstan Prospect Details
Kaskyrkazgan prospect Qaraghandy oblysy Kazakhstan Occurrence Details
Kenkuduk deposit Qaraghandy oblysy Kazakhstan Prospect Details
Kepcham deposit Qaraghandy oblysy Kazakhstan Prospect Details
Kounrad deposit Qaraghandy oblysy Kazakhstan Prospect Details
Ozernoe deposit Qaraghandy oblysy Kazakhstan Prospect Details
Almaly ore field prospect Qaraghandy oblysy Kazakhstan Occurrence Details
Baiskoe prospect Qaraghandy oblysy Kazakhstan Occurrence Details
Besshoky prospect Qaraghandy oblysy Kazakhstan Occurrence Details
Kengam prospect Qaraghandy oblysy Kazakhstan Occurrence Details