J and J Occurrence, Seward Mining District, Kenai Peninsula Borough, Alaska, USAi
| Regional Level Types | |
|---|---|
| J and J Occurrence | Occurrence |
| Seward Mining District | Mining District |
| Kenai Peninsula Borough | Borough |
| Alaska | State |
| USA | Country |
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Latitude & Longitude (WGS84):
60° 33' 40'' North , 149° 30' 28'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Moose Pass | 219 (2014) | 11.1km |
| Cooper Landing | 289 (2017) | 19.1km |
| Primrose | 111 (2006) | 22.7km |
| Hope | 192 (2017) | 40.2km |
| Bear Creek | 1,956 (2017) | 44.5km |
Location: This occurrence is located in the SE1/4 section 31 and the SW1/4 section 32, T. 6 N., R. 1 W., of the Seward Meridian. It is situated on a ridge above Johns Creek about 2.5 miles east of the Seward Highway at an elevation of about 4,100 feet. This is location S-247 of Jansons and others (1984). This location is accurate to within a quarter of a mile.
Geology: This occurrence consists of quartz-calcite veins hosted in the slate and sandstone of the Valdez Group of Late Cretaceous age (Nelson and others, 1985). The veins strike N40W and dip 57SW. (Jansons and others, 1984). No sulfides were identified in the veins. Two grab samples collected by the U.S. Bureau of Mines in 1981 did not contain any precious metals values (Hoekzema and Sherman, 1983).
Workings: The U.S. Bureau of Mines visited this occurrence in 1979. They collected two grab samples that did not contain any precious metals. Placer gold has been mined from Johns Creek below this occurrence (Hoekzema and Sherman, 1983).
Age: Cretaceous or younger; the veins cut rocks of the Valdez Group of Late Cretaceous age.
Commodities (Major) - Ag, Au
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
3 valid minerals.
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | Native Gold | 1.AA.05 | Au |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Quartz | 4.DA.05 | SiO2 |
| Group 5 - Nitrates and Carbonates | |||
| ⓘ | Calcite | 5.AB.05 | CaCO3 |
List of minerals for each chemical element
| C | Carbon | |
|---|---|---|
| C | ⓘ Calcite | CaCO3 |
| O | Oxygen | |
| O | ⓘ Calcite | CaCO3 |
| O | ⓘ Quartz | SiO2 |
| Si | Silicon | |
| Si | ⓘ Quartz | SiO2 |
| Ca | Calcium | |
| Ca | ⓘ Calcite | CaCO3 |
| Au | Gold | |
| Au | ⓘ Native Gold | Au |
Other Databases
| Link to USGS - Alaska: | SR148 |
|---|
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