Snowball; Mountain View; Hamilton and Irving Prospect, Prince William Sound Mining District, Valdez-Cordova Census Area, Alaska, USAi
| Regional Level Types | |
|---|---|
| Snowball; Mountain View; Hamilton and Irving Prospect | Prospect |
| Prince William Sound Mining District | Mining District |
| Valdez-Cordova Census Area | Census Area |
| Alaska | State |
| USA | Country |
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Latitude & Longitude (WGS84):
60° 58' 6'' North , 148° 13' 55'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Whittier | 214 (2018) | 32.7km |
Location: The prospect is located at an elevation of about 800 feet, in the SW1/4 section 9, T. 10 N., R. 7 E., of the Seward Meridian. It is about three-quarters of a mile west of the Granite mine (SR085). This is location 121 of Tysdal (1978 [MF-880-A]) and location S-148 of Jansons and others (1984). This location is accurate to within a quarter of a mile.
Geology: The prospect consists of a 3- to 12-inch-wide quartz vein that strikes N50W and dips 85NE. The vein is traceable for about 100 feet on the surface. The hanging wall consists of Eocene granite, and the foot wall consists of sandstone of the Valdez Group of Late Cretaceosu age (Hoekzema and Sherman, 1983). The vein contains angular fragments of bedrock and small amounts of pyrite and gold. Two samples collected in 1931 respectively contained 0.02 and 0.1 ounce of gold per ton and 2.54 and 0.8 ounces of silver per ton (Stewart, 1933). Workings on the prospect consist of a 220-foot adit at 720 feet above sea level and a shaft of unknown depth at 860 feet above sea level.
Workings: Two samples collected in 1931 respectively contained 0.02 and 0.1 ounce of gold per ton and 2.54 and 0.8 ounces of silver per ton (Stewart, 1933). Workings consist of a 220-foot-long adit at 720 feet above sea level and a shaft of unknown depth at 860 feet above sea level (Johnson, 1914 [?B 592-G, p. 195-236]).
Age: Eocene or younger; the vein cuts Eocene granite.
Commodities (Major) - Ag, Au
Development Status: None
Deposit Model: Low-sulfide Au-quartz vein (Cox and Singer, 1986; model 36a)
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsCommodity List
This is a list of exploitable or exploited mineral commodities recorded at this locality.Mineral List
3 valid minerals.
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | Native Gold | 1.AA.05 | Au |
| Group 2 - Sulphides and Sulfosalts | |||
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Quartz | 4.DA.05 | SiO2 |
List of minerals for each chemical element
| O | Oxygen | |
|---|---|---|
| O | ⓘ Quartz | SiO2 |
| Si | Silicon | |
| Si | ⓘ Quartz | SiO2 |
| S | Sulfur | |
| S | ⓘ Pyrite | FeS2 |
| Fe | Iron | |
| Fe | ⓘ Pyrite | FeS2 |
| Au | Gold | |
| Au | ⓘ Native Gold | Au |
Other Databases
| Link to USGS - Alaska: | SR084 |
|---|
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