Good Hope Prospect, Willow Creek Mining District, Matanuska-Susitna Borough, Alaska, USAi
| Regional Level Types | |
|---|---|
| Good Hope Prospect | Prospect |
| Willow Creek Mining District | Mining District |
| Matanuska-Susitna Borough | Borough |
| Alaska | State |
| USA | Country |
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Latitude & Longitude (WGS84):
61° 49' 11'' North , 149° 11' 24'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Fishhook | 4,679 (2011) | 8.8km |
| Buffalo Soapstone | 855 (2011) | 12.4km |
| Farm Loop | 1,028 (2011) | 20.3km |
| Sutton-Alpine | 1,447 (2015) | 22.8km |
| Lakes | 8,364 (2011) | 24.4km |
Nearest Clubs:
Local clubs are the best way to get access to collecting localities
Local clubs are the best way to get access to collecting localities
| Club | Location | Distance |
|---|---|---|
| Mat-Su Rock and Mineral Club | Palmer, Alaska | 25km |
Location: Claim staked on the east side of lower Reed Creek, along Goodhope Creek. Accurate within 1 mile radius.
Geology: A quartz vein several feet wide in Tertiary to Late Cretaceous biotite-hornblende tonalite and lesser biotite-hornblende quartz diorite is reported to contain gold (Capps, 1919). Wall-rock alteration within a few inches of the vein is intense, but seldom extends more than 10 to 12 inches beyond the quartz filling. Sericitization and carbonate alteration predominate, but there is some pyritization and in the outer parts of the alteration zone chloritization is present (Ray, 1954). Free gold can be panned from the vein.
Workings: First staked in 1916. Vein exposed by two large open cuts (Capps, 1919).
Age: Late Cretaceous or younger; quartz vein cuts Tertiary to Late Cretaceous tonalites and quartz diorites.
Alteration: Wall-rock alteration within a few inches of the vein is intense, but seldom extends more than 10 to 12 inches beyond the quartz filling. Sericitization and carbonate alteration predominate, but there is some pyritization and in the outer parts of the alteration zone chloritization is present (Ray, 1954).
Commodities (Major) - Au
Development Status: Undetermined
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.
Detailed Mineral List:
| ⓘ Native Gold Formula: Au |
| ⓘ Quartz Formula: SiO2 |
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 |
List of minerals for each chemical element
| O | Oxygen | |
|---|---|---|
| O | ⓘ Quartz | SiO2 |
| Si | Silicon | |
| Si | ⓘ Quartz | SiO2 |
| Au | Gold | |
| Au | ⓘ Native Gold | Au |
Other Databases
| Link to USGS - Alaska: | AN059 |
|---|
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