- Mineral Resources
- Online Spatial Data
- Global assessment of undiscovred copper resources
A linear belt of Oligocene and Miocene post-subduction igneous rocks in southwest China
| Tract ID |
142pCu8712 |
| Country |
China |
| Commodity |
Cu |
| Study area name |
Tibetan Plateau |
| Tectonic setting |
postconvergence |
| Deposit type |
porphyry copper |
| Grade-tonnage model |
General porphyry copper model (Singer and others, 2008) |
| Geologic age |
| Geologic feature age |
Oligocene through Miocene |
| Generalized age |
Tertiary-Neogene |
| Oldest rocks age |
33.9Ma
|
| Youngest rocks age |
5.332Ma
|
| Age range |
28.568Ma
|
|
| Identified Cu resources |
15,000,000metric tons
|
| Known prospects |
26 |
| Mean Cu (t/sq km) |
363t/sq km
|
| Map scales used |
500K, 2.5M |
Results of the assessment
| Assessment date |
2010 |
| Estimators |
Jane M. Hammarstrom, Steve Ludington, Gilpin R. Robinson Jr., Michael L. Zientek |
| Assessment depth |
1km
|
| Quantitative assessment |
Yes |
Estimated number of deposits
| Number of deposits |
Confidence level |
| 9 |
90% |
| 13 |
50% |
| 50 |
10% |
| 50 |
5% |
| 50 |
1% |
|
| Mean estimated deposits |
22.3 |
±15.73 |
(0.71%) |
| Probability of mean |
0.39 |
| Probability of no copper |
0.01 |
Estimated deposit density
Known
deposits |
Total
deposits |
Area
(sq km) |
Deposit density
per 100,000 sq km |
| 3 |
25.3 |
239,860 |
11 |
Mean estimated tonnage
| Copper |
87,000,000 |
| Molybdenum |
2,400,000 |
| Gold |
2,200 |
| Silver |
28,000 |
| Ore |
18,000 |
Undiscovered copper resource
| Confidence level |
95% |
90% |
50% |
10% |
5% |
| Tonnage |
7,300,000 |
13,000,000 |
61,000,000 |
200,000,000 |
250,000,000 |
Economic analysis
| Fraser country |
China (Vietnam proxy*) |
| Fraser type |
0.18%
|
| Fraser high |
0.82%
|
| 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 |
43,000,000t
|
| Molybdenum |
930,000t
|
| Gold |
750t
|
| Silver |
13,000t
|
| Probability no econ recoverable |
0.05 |
| Econ NPV |
7,400x $1M
|
| Exp dollars |
29.47x $1M/100,000 sq km
|
| Exp value class |
Medium |
Bibliographic references
| General |
Ludington, Hammarstrom, and others (2012) |
| Economic |
Robinson and Menzie (2012) |
Ludington, Steve, Hammarstrom, J.M., Robinson, G.R., Jr., Mars, J.C., and Miller, R.J., 2012, Porphyry copper assessment of the Tibetan Plateau, China: U.S. Geological Survey, Scientific Investigations Report 20105090F, 63 p., http://pubs.usgs.gov/sir/2010/5090/f/.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 |
| Xietongmen |
deposit |
Xizang |
China |
Prospect |
Details |
| Qulong |
deposit |
Xizang |
China |
Prospect |
Details |
| Jiama |
deposit |
Xizang |
China |
Producer |
Details |
| Zhunuo |
prospect |
Xizang |
China |
Prospect |
Details |
| Banongla |
prospect |
Xizang |
China |
Prospect |
Details |
| Tangbai |
prospect |
Xizang |
China |
Prospect |
Details |
| Jiru |
prospect |
Xizang |
China |
Prospect |
Details |
| Ganjiang |
prospect |
Xizang |
China |
Prospect |
Details |
| Dubuqu |
prospect |
Xizang |
China |
Prospect |
Details |
| Tinggong |
prospect |
Xizang |
China |
Prospect |
Details |
| Zongxun |
prospect |
Xizang |
China |
Prospect |
Details |
| Nanmu |
prospect |
Xizang |
China |
Prospect |
Details |
| Lakang’e |
prospect |
Xizang |
China |
Prospect |
Details |
| Xiangbeishan |
prospect |
Xizang |
China |
Prospect |
Details |
| Liebu |
prospect |
Xizang |
China |
Prospect |
Details |
| Mingze |
prospect |
Xizang |
China |
Prospect |
Details |
| Chongmuda |
prospect |
Xizang |
China |
Prospect |
Details |
| Bangpu |
prospect |
Xizang |
China |
Prospect |
Details |
| Xiamari |
prospect |
Xizang |
China |
Prospect |
Details |
| Demingding |
prospect |
Xizang |
China |
Prospect |
Details |
| Sharang |
prospect |
Xizang |
China |
Prospect |
Details |
| Zemoduola |
prospect |
Xizang |
China |
Prospect |
Details |
| Chuibaizi |
prospect |
Xizang |
China |
Prospect |
Details |
| Tangbula |
prospect |
Xizang |
China |
Prospect |
Details |
