- 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 |