Tract ID | 003pCu3006x | ||||||||||
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Country | Mexico-United States of America | ||||||||||
Commodity | Cu | ||||||||||
Study area name | Mexico and US revised | ||||||||||
Tectonic setting | continental margin | ||||||||||
Deposit type | porphyry copper | ||||||||||
Grade-tonnage model | General porphyry copper model (Singer and others, 2008) | ||||||||||
Geologic age |
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Identified Cu resources | 5,400,000metric tons | ||||||||||
Mean Cu (t/sq km) | 242t/sq km | ||||||||||
Map scales used | 250K, 500K |
Assessment date | 2012 |
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Estimators | Francisco Cendejas-Cruz, Enrique Espinosa, Floyd Gray, Jane Hammarstrom, Steve Ludington, Gilpin Robinson, Efren Pérez-Segura, Martín Valencia-Morena, José Luis Rodríguez-Castañeda, Lukas Zürcher AND 1996 USGS National Mineral Resource Assessment T |
Assessment depth | 1km |
Quantitative assessment | Yes |
Number of deposits | Confidence level |
---|---|
2 | 90% |
5 | 50% |
9 | 10% |
9 | 5% |
9 | 1% |
Mean estimated deposits | 5.17 | ±2.59 | (0.5%) |
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Probability of mean | 0.29 |
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Probability of no copper | 0.04 |
Known deposits |
Total deposits |
Area (sq km) |
Deposit density per 100,000 sq km |
---|---|---|---|
2 | 7.17 | 82,639 | 9 |
Copper | 20,000,000 |
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Molybdenum | 560,000 |
Gold | 510 |
Silver | 7,000 |
Ore | 4,100 |
Confidence level | 95% | 90% | 50% | 10% | 5% |
---|---|---|---|---|---|
Tonnage | 370,000 | 1,600,000 | 12,000,000 | 48,000,000 | 75,000,000 |
Fraser country | Mexico |
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Fraser type | 0.68% |
Fraser high | 0.32% |
Typical cost | 1% |
High cost | 0% |
Infrastructure setting | Typical |
Comments on depth | 76% cover; skew deep |
Expected depth distribution | |
0 - 250m | 0.1 |
250m - 500m | 0.3 |
500m - 1km | 0.6 |
Economically recoverable resources | |
Copper | 13,000,000t |
Molybdenum | 260,000t |
Gold | 260t |
Silver | 4,200t |
Probability no econ recoverable | 0.24 |
Econ NPV | 3,300x $1M |
Exp dollars | 35x $1M/100,000 sq km |
Exp value class | Medium |
General | Hammarstrom and others (2010) and U.S. Geological Survey National Mineral Resource Assessment Team (2002) |
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Economic | Robinson and Menzie (2012) |
Name | Type | State | Country | Development | Details |
---|---|---|---|---|---|
Batacosa | prospect | Sonora | Mexico | Occurrence | Details |
La Fortuna | prospect | Sonora | Mexico | Occurrence | Details |
La Sierrita/La Cobriza | prospect | Sonora | Mexico | Occurrence | Details |
Los Humos | prospect | Sonora | Mexico | Occurrence | Details |
Picacho | prospect | Sonora | Mexico | Occurrence | Details |
Piedras Verdes | deposit | Sonora | Mexico | Past Producer | Details |
Ajo | deposit | Arizona | United States | Occurrence | Details |
Stray Elephant | prospect | Arizona | United States | Prospect | Details |