- Mineral Resources
- Online Spatial Data
- Global assessment of undiscovred copper resources
Carboniferous through Triassic island and continental arcs formed by subduction of Paleotethyan oceanic crust (the Loei and Truongson volcanic arcs)
| Tract ID |
142pCu7021 |
| Country |
Cambodia-China-Lao People's Democratic Republic-Myanmar-Thailand-Viet Nam |
| Commodity |
Cu |
| Study area name |
Southeast Asia and Melanesia |
| Tectonic setting |
mixed |
| Deposit type |
porphyry copper |
| Grade-tonnage model |
Porphyry copper, Cu-Au subtype (Singer and others, 2008) |
| Geologic age |
| Geologic feature age |
Carboniferous through Triassic |
| Generalized age |
Paleozoic |
| Oldest rocks age |
359.2Ma
|
| Youngest rocks age |
199.6Ma
|
| Age range |
159.6Ma
|
|
| Identified Cu resources |
1,200,000metric tons
|
| Known prospects |
4 |
| Mean Cu (t/sq km) |
104t/sq km
|
| Map scales used |
250K, 500K, 2M |
Results of the assessment
| Assessment date |
2010 |
| Estimators |
Steve Ludington, Jane M. Hammarstrom, Gilpin R. Robinson, Jr., Wudikarn Sukserm |
| Assessment depth |
1km
|
| Quantitative assessment |
Yes |
Estimated number of deposits
| Number of deposits |
Confidence level |
| 3 |
90% |
| 8 |
50% |
| 26 |
10% |
| 26 |
5% |
| 26 |
1% |
|
| Mean estimated deposits |
11.7 |
±8.52 |
(0.73%) |
| Probability of mean |
0.38 |
| Probability of no copper |
0.03 |
Estimated deposit density
Known
deposits |
Total
deposits |
Area
(sq km) |
Deposit density
per 100,000 sq km |
| 1 |
12.7 |
354,260 |
4 |
Mean estimated tonnage
| Copper |
37,000,000 |
| Molybdenum |
210,000 |
| Gold |
2,700 |
| Silver |
12,000 |
| Ore |
7,400 |
Undiscovered copper resource
| Confidence level |
95% |
90% |
50% |
10% |
5% |
| Tonnage |
900,000 |
2,900,000 |
24,000,000 |
90,000,000 |
110,000,000 |
Economic analysis
| Fraser country |
China, Myanmar, Thailand, Lao People’s Democratic Republic, Cambodia, and Vietnam * |
| Fraser type |
0.18%
|
| Fraser high |
0.82%
|
| Typical cost |
0%
|
| High cost |
1%
|
| Infrastructure setting |
High cost |
| Expected depth distribution |
|---|
| 0 - 250m |
0.25 |
| 250m - 500m |
0.25 |
| 500m - 1km |
0.5 |
| Economically recoverable resources |
|---|
| Copper |
18,000,000t
|
| Molybdenum |
74,000t
|
| Gold |
880t
|
| Silver |
5,700t
|
| Probability no econ recoverable |
0.2 |
| Econ NPV |
3,400x $1M
|
| Exp dollars |
7.87x $1M/100,000 sq km
|
| Exp value class |
Low |
Bibliographic references
| General |
Hammarstrom and others (2013) |
| Economic |
Robinson and Menzie (2012) |
Hammarstrom, J.M., Bookstrom, A.A., Dicken, C.L., Drenth, B.J., Ludington, S., Robinson, G.R., Jr., Setiabudi, B.T., Sukserm, W., Sunuhadi, D.N., Wah, A.Y.S., and Zientek, M.L., with contributions from Cox, D.P., Jarnyaharn, P., Kopi, G., Ngoc, N.T.M., Otarawanna, P., Pei, C.S., Phany, U., Van Quy, Sakimoto, T., Saroa, D., Soares da Costa, N., Sotham, S., Sim, I.M., Trung, N.N., Wongsomasak, S., Yokarti, B., and Zaw, K., 2013, Porphyry copper assessment of Southeast Asia and Melanesia: U.S. Geological Survey Scientific Investigations Report 20105090D, 332 p., http://pubs.usgs.gov/sir/2010/5090/d/.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 |
| Sa Thay |
prospect |
Kon Tum |
Viet Nam |
Prospect |
Details |
| Puthep |
prospect |
Loei |
Thailand |
Prospect |
Details |
| Phu Kam |
deposit |
Xiangkhoang |
Lao People's Democratic Republic |
Producer |
Details |
