Deposit with commodities tin
More information at and near this site: Sn-AK00035
| Feature ID | Sn-Mo00547 |
|---|---|
| Geographic coordinates | -167.956458, 65.583791 |
| Point definition | Mineral occurence represented as the same location as the mine feature |
| Reference | Mulligan (1966); Page 24, Figure 7 Date: 1966; Scale: Large (>1:24,000)
|
| Commodities | tin |
|---|---|
| Valuable materials | cassiterite |
| Associated materials | wollastonite (1); green pyroxene (1); green tourmaline(1) |
| Mineralization style | lenticular pods; veins; veinlets |
| Host rock age | Upper Mississippian (2) |
| Host unit name | Port Clarence Group (2) |
| Host lithologies | granite; limestone |
| Alteration | contact metamorphism (1) |
| Reference | Mulligan, J.J., 1966, Tin-lode investigations, Cape Mountain Area, Seward Peninsula, Alaska, Bureau of Mines Report Investigations 6737, 43 p. |
| Additional references | (1) Heide and others (1946); (2) Baggs and others (1988) |
?Tin, in the form of cassiterite, is known to occur as a constituent of quartz veins, as a replacement of limestone near the granite contact, and in granite near the limestone contact. The principal associates of the tin are tourmaline and pyrite. It is impossible to state whether any of these occurrences will yield tin in commercial quantities. In view of the excellent exposures on Cape Mountain, it would seem that if quartz veins of considerable magnitude were present they could easily be discovered, because such veins would form strong outcrops, and therefore, because of the scarcity of quartz-vein material on the surface it is improbable that large deposits of vein quartz occur on Cape Mountain.?
Steidtmann, E., and Cathcart, S.H., 1922, Geology of the York tin deposits, Alaska: U.S. Geological Survey Bulletin 733, 130 p.
| Type | Model | Reference |
|---|---|---|
| Deposit model | 15b - Sn veins | Reed, B.L., 1986, Descriptive Model of Alluvial Placer Sn, in Cox, D.P., and Singer, D.A., 1986, Mineral deposit models: U.S. Geological Survey Bulletin 1693, p. 275-275. |
| Geoenvironmental model | Vein and Greissen Sn and W | du Bray, E.A., 1995, ed., Preliminary compilation of descriptive geoenvironmental mineral deposit models: U.S. Geological Survey Open-File Report 95-831, 272 p. |
| Date | Description | Class | Type | Material | Contained | Units |
|---|---|---|---|---|---|---|
| 1946 | Reserve | Indicated | ore | tin | 47 | metric tons |
| 1946 | Reserve | Inferred | ore | tin | 98 | metric tons |
| 1946: Reserve, Indicated | |
|---|---|
| Year of estimate | 1946 |
| Resource description | Reserve |
| Resource classification | Indicated |
| Material | tin |
| Material type | ore |
| Material amount | 650 |
| Amount units | metric tons |
| Grade | 7.28 |
| Grade units | percent |
| Contained commodity | 47 |
| Contained commodity units | metric tons |
| Material amount SI | 650 |
| Material amount SI units | metric tons |
| Grade SI | 7.28 |
| Grade SI units | percent |
| Contained commodity SI | 47 |
| Contained commodity SI units | metric tons |
| Short reference | Baggs and others (1988)Page 37 |
| Reference | Baggs, D.W., Northam, M.J., Meyer, M.P., and Maas, K.M., 1988, Selected Significant Mineral Deposits in Alaska A Minerals Availability System Overview, U.S. Bureau of Mines Information Circular 9177, p. 134. |
| 1946: Reserve, Inferred | |
|---|---|
| Year of estimate | 1946 |
| Resource description | Reserve |
| Resource classification | Inferred |
| Material | tin |
| Material type | ore |
| Material amount | 1,350 |
| Amount units | metric tons |
| Grade | 7.28 |
| Grade units | percent |
| Contained commodity | 98 |
| Contained commodity units | metric tons |
| Material amount SI | 1,350 |
| Material amount SI units | metric tons |
| Grade SI | 7.28 |
| Grade SI units | percent |
| Contained commodity SI | 98 |
| Contained commodity SI units | metric tons |
| Short reference | Baggs and others (1988)Page 37 |
| Reference | Baggs, D.W., Northam, M.J., Meyer, M.P., and Maas, K.M., 1988, Selected Significant Mineral Deposits in Alaska A Minerals Availability System Overview, U.S. Bureau of Mines Information Circular 9177, p. 134. |
| Dates | Status | Detail | Reference |
|---|---|---|---|
| 1902 to 1902 | Discovery | Lode tin was discovered | Mulligan (1966) |