Suzie Mountain Prospect, Goodnews Bay, Bethel Census Area, Alaska, USAi
| Regional Level Types | |
|---|---|
| Suzie Mountain Prospect | Prospect |
| Goodnews Bay | Bay |
| Bethel Census Area | Census Area |
| Alaska | State |
| USA | Country |
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Latitude & Longitude (WGS84):
58° 57' 36'' North , 161° 39' 7'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Goodnews Bay | 256 (2017) | 18.0km |
Mindat Locality ID:
200253
Long-form identifier:
mindat:1:2:200253:1
GUID (UUID V4):
1fb99b7c-0546-42c3-8ecf-dc6b079ef468
Location: This prospect is on the west ridge of Suzie Mountain and along the west side of Suzie Creek. The site is on the ridge crest at an elevation of about 900 feet and about 3.5 miles northeast of Goodnews Mining Camp. It is in the NE1/4 of section 20, T. 14 S., R. 74 W., of the Seward Meridian. The prospect is accurately located. Cobb's locality number 2 (1972 [MF 362]; 1980 [OF 80-909]) appears to be at this location.
Geology: This prospect is on the west ridge of the Suzie Mountain ultramafic complex, a composite dunite, peridotite, and clinopyroxenite pluton that is inferred to be Jurassic in age (Hoare and Coonrad, 1978; Alaska Earth Sciences, 2000). A geochemical survey in the area of this prospect in 2000 defined 700-meter-long and up to 100-meter-wide soil anomaly that averages 130 parts per billion platinum; the maximum platinum value in the anomaly is 345 ppb Pt (Alaska Earth Sciences, 2000). The anomaly extends northwest from Suzie Creek across the ridge crest at this locality. In 2004, the Calista Corporation did extensive rock and soil sampling over the prospect and did detailed total field, magnetic susceptibility, and resistivity surveys (Calista Corp., 2004). One rock sample contained 2.5 part per million platinum and many of the soil samples were anomalous in platinum. A coherent zone of ore grade mineralization could not be defined at the surface but the data suggest the potential for deeper mineralization. A. L. Clark (Cobb, 1972; Cobb, 1980) noted that copper minerals had been found at this locality. Alaska Earth Science (2000) noted that in the Salmon River area traces of chalcopyrite, pyrite, or pyrrhotite are common in surface outcrops of hornblende-bearing rocks in marginal parts of the ultramafic complexes.
Workings: There has been surface soil and rock sampling at this location (Alaska Earth Sciences, 2000). An aeromagnetic survey was flown over the Salmon River area in 1994, a gravity survey has been completed, and some controlled-source audio magneto-telluric lines have been run over selected parts of the ultramafic complexes (Alaska Earth Sciences, 2000). In 2004, the Calista Corporation did extensive rock and soil sampling over the prospect and did detailed total field, magnetic susceptibility, and resistivity surveys.
Age: Jurassic, the inferred age of the ultramafic plutons in the area (Hoare and Coonrad, 1978).
Commodities (Major) - Pt; (Minor) - Cu
Development Status: None
Deposit Model: Alaskan PGE (Cox and Singer, 1986; model 9)
Commodity List
This is a list of exploitable or exploited mineral commodities recorded at this locality.List of minerals for each chemical element
Other Databases
| Link to USGS - Alaska: | HG016 |
|---|
Other Regions, Features and Areas containing this locality
North America PlateTectonic Plate
- Walrus-Goodnews DomainDomain
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References
