Tract ID | 003rfCu3003 | ||
---|---|---|---|
Country | United States of America | ||
Commodity | Cu | ||
Study area name | United States National Assessment, revised | ||
Deposit type | sediment-hosted stratabound copper | ||
Grade-tonnage model | Sediment-hosted stratabound copper—Reduced facies-nonbrecciated | ||
Geologic age |
|
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Identified Cu resources | 9,435,100metric tons |
Assessment date | 1998 |
---|---|
Estimators | Bill Cannon, Suzanne Nicholson, and Laurel Woodruff |
Assessment depth | 1km |
Quantitative assessment | Yes |
Number of deposits | Confidence level |
---|---|
2 | 90% |
5 | 50% |
10 | 10% |
10 | 5% |
10 | 1% |
Mean estimated deposits | 5.5 | ±3 | (54%) |
---|
Probability of mean | 0.35 |
---|---|
Probability of no copper | 0.04 |
Known deposits |
Total deposits |
Area (sq km) |
Deposit density per 100,000 sq km |
---|---|---|---|
2 | 7.5 | 123,147 | 0.6 |
Copper | 18,000,000 |
---|
Confidence level | 95% | 90% | 50% | 10% | 5% |
---|---|---|---|---|---|
Tonnage | 76,000 | 590,000 | 10,000,000 | 47,000,000 | 67,000,000 |
General | U.S. Geological Survey National Mineral Resource Assessment Team (2002) |
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Name | Type | State | Country | Details |
---|---|---|---|---|
White Pine | deposit | Michigan | United States | Details |
Presque Isle | deposit | Michigan | United States | Details |