- Mineral Resources
- Online Spatial Data
- Global assessment of undiscovred copper resources
Ordovician North Tian Shan magmatic arc
Middle to Late Ordovician North Tian Shan magmatic-arc
| Tract ID |
142pCu8002 |
| Country |
Kazakhstan-Kyrgyzstan |
| Commodity |
Cu |
| Study area name |
West Central Asia |
| Tectonic setting |
mixed |
| Deposit type |
porphyry copper |
| Grade-tonnage model |
General porphyry copper model (Singer and others, 2008) |
| Geologic age |
| Geologic feature age |
Middle to Late Ordovician |
| Generalized age |
Paleozoic |
| Oldest rocks age |
471.8Ma
|
| Youngest rocks age |
443.7Ma
|
| Age range |
28.1Ma
|
|
| Identified Cu resources |
2,000,000metric tons
|
| Known prospects |
5 |
| Mean Cu (t/sq km) |
639t/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, Michael L. Zientek |
| Assessment depth |
1km
|
| Quantitative assessment |
Yes |
Estimated number of deposits
| Number of deposits |
Confidence level |
|
| 1 |
50% |
| 3 |
10% |
| 3 |
5% |
| 3 |
1% |
|
| Mean estimated deposits |
1.3 |
±1.17 |
(0.9%) |
| Probability of mean |
0.23 |
| Probability of no copper |
0.3 |
Estimated deposit density
Known
deposits |
Total
deposits |
Area
(sq km) |
Deposit density
per 100,000 sq km |
| 2 |
3.3 |
8,140 |
41 |
Mean estimated tonnage
| Copper |
5,200,000 |
| Molybdenum |
140,000 |
| Gold |
130 |
| Silver |
1,600 |
| Ore |
1,000 |
Undiscovered copper resource
| Confidence level |
50% |
10% |
5% |
| Tonnage |
1,000,000 |
11,000,000 |
20,000,000 |
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 OK |
| Expected depth distribution |
|---|
| 0 - 250m |
0.25 |
| 250m - 500m |
0.25 |
| 500m - 1km |
0.5 |
| Economically recoverable resources |
|---|
| Copper |
2,500,000t
|
| Molybdenum |
54,000t
|
| Gold |
44t
|
| Silver |
750t
|
| Probability no econ recoverable |
0.88 |
| Econ NPV |
430x $1M
|
| Exp dollars |
5.96x $1M/100,000 sq km
|
| Exp value class |
Low |
Bibliographic references
| General |
Berger and others (2014) |
| Economic |
Robinson and Menzie (2012) |
Berger, B.R., Mars, J.C., Denning, P.D., Phillips, J.D., Hammarstrom, J.M., Zientek, M.L, Dicken, C.L., and Drew, L.J., with contributions from Alexeiev, D., Seltmann, R., and Herrington, R.J., 2014, Porphyry copper assessment of western Central Asia: U.S. Geological Survey Scientific Investigations Report 20105090N, 219 p., 8 plates, and spatial data, http://dx.doi.org/10.3133/sir20105090N.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 20105090H, 21 p., http://pubs.usgs.gov/sir/2010/5090/h/.
Deposits and prospects associated with this tract
| Name |
Type |
State |
Country |
Development |
Details |
| Chatyrkul |
deposit |
Zhambyl oblysy |
Kazakhstan |
Producer |
Details |
| Taldy-Bulak |
deposit |
Talas |
Kyrgyzstan |
Prospect |
Details |
| Almalysai |
prospect |
Zhambyl oblysy |
Kazakhstan |
Occurrence |
Details |
| Andash |
prospect |
Talas |
Kyrgyzstan |
Occurrence |
Details |
| Chonur |
prospect |
Talas |
Kyrgyzstan |
Occurrence |
Details |
| Kurdai Drevny |
prospect |
Zhambyl oblysy |
Kazakhstan |
Occurrence |
Details |
