Tract ID | 142pCu7202 | ||||||||||
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Country | Indonesia | ||||||||||
Commodity | Cu | ||||||||||
Study area name | Southeast Asia and Melanesia | ||||||||||
Tectonic setting | island arc | ||||||||||
Deposit type | porphyry copper | ||||||||||
Grade-tonnage model | Porphyry copper, Cu-Au subtype (Singer and others, 2008) | ||||||||||
Geologic age |
|
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Identified Cu resources | 250,000metric tons | ||||||||||
Known prospects | 4 | ||||||||||
Mean Cu (t/sq km) | 392t/sq km | ||||||||||
Map scales used | 250K, 1M, 2M |
Assessment date | 2010 |
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Estimators | Gilpin R. Robinson, Jr., Steve Ludington, Jane M. Hammarstrom, Michael L. Zientek, Arthur A. Bookstrom, Alexander Yan Sze Wah, Bambang Setiabudi, Dwi Sunuhadai |
Assessment depth | 1km |
Quantitative assessment | Yes |
Number of deposits | Confidence level |
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1 | 50% |
3 | 10% |
6 | 5% |
6 | 1% |
Mean estimated deposits | 1.53 | ±1.75 | (1.15%) |
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Probability of mean | 0.22 |
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Probability of no copper | 0.31 |
Known deposits |
Total deposits |
Area (sq km) |
Deposit density per 100,000 sq km |
---|---|---|---|
1 | 2.53 | 12,245 | 21 |
Copper | 4,800,000 |
---|---|
Molybdenum | 29,000 |
Gold | 340 |
Silver | 1,600 |
Ore | 970 |
Confidence level | 50% | 10% | 5% |
---|---|---|---|
Tonnage | 870,000 | 12,000,000 | 24,000,000 |
Fraser country | Indonesia |
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Fraser type | 0.13% |
Fraser high | 0.88% |
Typical cost | 0% |
High cost | 1% |
Infrastructure setting | High cost |
Comments on depth | deep |
Expected depth distribution | |
0 - 250m | 0.1 |
250m - 500m | 0.3 |
500m - 1km | 0.6 |
Economically recoverable resources | |
Copper | 2,100,000t |
Molybdenum | 9,400t |
Gold | 96t |
Silver | 720t |
Probability no econ recoverable | 0.9 |
Econ NPV | 370x $1M |
Exp dollars | -3.81x $1M/100,000 sq km |
Exp value class | Very Low |
General | Hammarstrom and others (2013) |
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Economic | Robinson and Menzie (2012) |
Name | Type | State | Country | Development | Details |
---|---|---|---|---|---|
Masurung I | prospect | Maluku Utara | Indonesia | Occurrence | Details |
Masurung II | prospect | Maluku Utara | Indonesia | Occurrence | Details |
Payahe | prospect | Maluku Utara | Indonesia | Occurrence | Details |
Sugili | prospect | Maluku Utara | Indonesia | Occurrence | Details |
Matat | prospect | Maluku Utara | Indonesia | Prospect | Details |
Tobobo | prospect | Maluku Utara | Indonesia | Prospect | Details |
Hulu S | prospect | Maluku Utara | Indonesia | Prospect | Details |
Kaputusan P. Bacan | prospect | Maluku Utara | Indonesia | Prospect | Details |
Kaputusan | deposit | Maluku Utara | Indonesia | Unknown | Details |