Bennett; Bailey and Heinz Occurrence, Prince William Sound Mining District, Valdez-Cordova Census Area, Alaska, USAi
| Regional Level Types | |
|---|---|
| Bennett; Bailey and Heinz Occurrence | Occurrence |
| 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° 53' 58'' North , 148° 19' 4'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Whittier | 214 (2018) | 24.3km |
Location: This occurrence is located on the steep tree-covered west shore of Hummer Bay. It is in the W1/2 section 1, T. 9 N., R. 6 E., of the Seward Meridian. This is location 84 of MacKevett and Holloway (1977), location 133 of Cobb and Tysdal (1980), and location S-160 of Jansons and others (1984). This location is accurate to within half a mile.
Geology: This occurrence consists of several quartz veins as much as 3 inches wide in phyllitic, graphitic slate (Jansons and others, 1984) of the Valdez Group of Late Cretaceous age (Cobb and Tysdal, 1980). The bedrock strikes generally north-northeast, and the veins cross-cut the foliation. The quartz veins contain weathered carbonate minerals. The U.S. Bureau of Mines sampled barren-appearing quartz-carbonate veins in 1979. One sample contained 200 ppm copper; none contained any precious metal values (Hoekzema and Sherman, 1983).
Workings: Surface stripping and opencuts were reported in1915 (Johnson, 1916). The U.S. Bureau of Mines visited the site in 1979 but found no workings. They sampled the veins; sample 7026 contained 200 ppm copper (Hoekzema and Sherman, 1983).
Age: Cretaceous or younger; veins cut rocks of the Valdez Group of Cretaceous age.
Commodities (Major) - Au?; (Minor) - Cu
Development Status: None
Deposit Model: Low-sulfide Au-quartz veins (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
2 valid minerals.
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | Gold ? | 1.AA.05 | Au |
| 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 |
| Au | Gold | |
| Au | ⓘ Gold | Au |
Other Databases
| Link to USGS - Alaska: | SR078 |
|---|
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