Tract ID | 005pCu1005 | ||||||||||
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Country | Colombia-Ecuador | ||||||||||
Commodity | Cu | ||||||||||
Study area name | Andes | ||||||||||
Tectonic setting | continental margin | ||||||||||
Deposit type | porphyry copper | ||||||||||
Grade-tonnage model | General porphyry copper model (Singer and others, 2005) | ||||||||||
Geologic age |
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Identified Cu resources | 4,000,300metric tons | ||||||||||
Known prospects | 4 | ||||||||||
Mean Cu (t/sq km) | 663t/sq km | ||||||||||
Map scales used | 500K, 1M |
Assessment date | 2005 |
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Estimators | Carlos Mario Celada, Vladimir I. Berger, Joseph A Briskey, Charles G. Cunningham, Mariano Gajardo M., Donald A. Singer, David M. Sutphin, Waldo Vivallo S., and Eduardo O. Zappettini |
Assessment depth | 1km |
Quantitative assessment | Yes |
Number of deposits | Confidence level |
---|---|
6 | 90% |
11 | 50% |
19 | 10% |
19 | 5% |
19 | 1% |
Mean estimated deposits | 11.5 | ±4.88 | (0.42%) |
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Probability of mean | 0.37 |
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Probability of no copper | 0.02 |
Known deposits |
Total deposits |
Area (sq km) |
Deposit density per 100,000 sq km |
---|---|---|---|
4 | 15.5 | 58,800 | 26 |
Copper | 39,000,000 |
---|---|
Molybdenum | 970,000 |
Gold | 950 |
Silver | 13,000 |
Ore | 7,700,000,000 |
Confidence level | 95% | 90% | 50% | 10% | 5% |
---|---|---|---|---|---|
Tonnage | 3,200,000 | 7,400,000 | 30,000,000 | 81,000,000 | 110,000,000 |
Fraser country | Colombia (44%) and Ecuador (24%) |
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Fraser type | 0.47% |
Fraser high | 0.53% |
Typical cost | 0.36% |
High cost | 0.64% |
Infrastructure setting | Mixed |
Comments on depth | ~30% cover; depth ok |
Expected depth distribution | |
0 - 250m | 0.25 |
250m - 500m | 0.25 |
500m - 1km | 0.5 |
Economically recoverable resources | |
Copper | 21,000,000t |
Molybdenum | 380,000t |
Gold | 360t |
Silver | 6,700t |
Probability no econ recoverable | 0.1 |
Econ NPV | 5,100x $1M |
Exp dollars | 80.89x $1M/100,000 sq km |
Exp value class | High |
General | Cunningham and others (2008) |
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Economic | Robinson and Menzie (2012) |
Name | Type | State | Country | Development | Details |
---|---|---|---|---|---|
Balzapamba-Las Guardias | prospect | Bolívar | Ecuador | Occurrence | Details |
Chaso Juan | prospect | Bolívar | Ecuador | Occurrence | Details |
Chaucha | deposit | Azuay | Ecuador | Unknown | Details |
Fierro Urcu | deposit | Loja | Ecuador | Prospect | Details |
Gaby-Papa Grande | deposit | Azuay | Ecuador | Prospect | Details |
Junin | deposit | Imbabura | Ecuador | Unknown | Details |
Piedrasentada | prospect | Cauca | Colombia | Occurrence | Details |
Telimbela | prospect | Bolívar | Ecuador | Occurrence | Details |