Golden Wonder #9; Mountain Prospect, Prince William Sound Mining District, Valdez-Cordova Census Area, Alaska, USAi
Regional Level Types | |
---|---|
Golden Wonder #9; Mountain Prospect | Prospect |
Prince William Sound Mining District | Mining District |
Valdez-Cordova Census Area | Census Area |
Alaska | State |
USA | Country |
This page is currently not sponsored. Click here to sponsor this page.
Latitude & Longitude (WGS84):
60° 58' 15'' North , 147° 57' 10'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Mindat Locality ID:
197743
Long-form identifier:
mindat:1:2:197743:4
GUID (UUID V4):
78f620f3-2357-4eec-ac95-272e1bde5d5a
Location: The prospect is located on the ridge line northeast of Golden between elevations of 1,440 to 1,740 feet. This is near the center of section 12, T. 10 N., R. 8 E., of the Seward Meridian. This is location 98 of Condon and Cass (1958), location 79 of Cobb and Richter (1972), location 97 of MacKevett and Holloway (1977), location 154 of Cobb and Tysdal (1980), and location S-133 of Jansons and others (1984). This location is accurate to within a quarter of a mile.
Geology: The country rocks at this prospect are sheared graywacke and slate of the Valdez Group of Late Cretaceous age. The deposit is in a shear zone that contains lens and stringers of quartz carrying arsenopyrite, pyrite, chalcopyrite, sphalerite, calcite, chlorite, and gold (Cobb and Tysdal, 1980). The shear zone strikes southwest and dips 70N; it is from 8 to 44 inches wide. The quartz veining is parallel to the shear and consists of white quartz with traces of calcite and chlorite and free gold. Assay values ranged from 1.5 to 4.8 ounces of gold per ton (Johnson, 1914 [B 592-G, p. 221]). The workings on the prospect consist of two adits and an open cut. The lower adit is at 1,430 feet elevation and is caved (Hoekzema and Sherman, 1983). The upper adit is at 1,640 feet elevation and is 121 feet long. The open cut is located at 1,740 feet elevation and is 30 feet long. The U.S. Bureau of Mines mapped and sampled this prospect in 1979 and 1980. Their assay of the veins ranged from less than 1 to 26 ppm gold and from a trace to 12.5 ppm silver. They estimated a geologic resource of 500 tons of ore grading 0.7 ounce of gold per ton (Jansons and others, 1984).
Workings: The lower adit is at 1,430 feet elevation and is caved. The upper adit is at 1,640 feet elevation and is 121 feet long. The open cut is at 1,740 feet elevation and is 30 feet long. Assay values ranged from 1.5 to 4.8 ounces of gold per ton (gold at $20.67 per ounce) (Johnson, 1914 [B 592-G, p. 221]). The U.S. Bureau of Mines sampled this prospect in 1979 and 1980. Their sample values ranged from less than 1 ppm to 26 ppm gold and from a trace to 12.5 ppm silver. They estimated a geologic resource of 500 tons of ore grading 0.7 ounce of gold per ton (Jansons and others, 1984).
Age: Cretaceous or younger; the veins are in a shear zone that cuts rocks of the Valdez Group of Late Cretaceous age.
Reserves: The U.S. Bureau of Mines estimated a geologic resource of 500 tons of ore grading 0.7 ounce of gold per ton (Jansons and others, 1984).
Commodities (Major) - Au; (Minor) - Cu, Zn
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
8 valid minerals.
Detailed Mineral List:
ⓘ Arsenopyrite Formula: FeAsS |
ⓘ Calcite Formula: CaCO3 |
ⓘ Chalcopyrite Formula: CuFeS2 |
ⓘ 'Chlorite Group' |
ⓘ Gold Formula: Au |
ⓘ Pyrite Formula: FeS2 |
ⓘ Pyrrhotite Formula: Fe1-xS |
ⓘ Quartz Formula: SiO2 |
ⓘ Sphalerite Formula: ZnS |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
Group 1 - Elements | |||
---|---|---|---|
ⓘ | Gold | 1.AA.05 | Au |
Group 2 - Sulphides and Sulfosalts | |||
ⓘ | Sphalerite | 2.CB.05a | ZnS |
ⓘ | Chalcopyrite | 2.CB.10a | CuFeS2 |
ⓘ | Pyrrhotite | 2.CC.10 | Fe1-xS |
ⓘ | Pyrite | 2.EB.05a | FeS2 |
ⓘ | Arsenopyrite | 2.EB.20 | FeAsS |
Group 4 - Oxides and Hydroxides | |||
ⓘ | Quartz | 4.DA.05 | SiO2 |
Group 5 - Nitrates and Carbonates | |||
ⓘ | Calcite | 5.AB.05 | CaCO3 |
Unclassified | |||
ⓘ | 'Chlorite Group' | - |
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 |
S | Sulfur | |
S | ⓘ Arsenopyrite | FeAsS |
S | ⓘ Chalcopyrite | CuFeS2 |
S | ⓘ Pyrite | FeS2 |
S | ⓘ Pyrrhotite | Fe1-xS |
S | ⓘ Sphalerite | ZnS |
Ca | Calcium | |
Ca | ⓘ Calcite | CaCO3 |
Fe | Iron | |
Fe | ⓘ Arsenopyrite | FeAsS |
Fe | ⓘ Chalcopyrite | CuFeS2 |
Fe | ⓘ Pyrite | FeS2 |
Fe | ⓘ Pyrrhotite | Fe1-xS |
Cu | Copper | |
Cu | ⓘ Chalcopyrite | CuFeS2 |
Zn | Zinc | |
Zn | ⓘ Sphalerite | ZnS |
As | Arsenic | |
As | ⓘ Arsenopyrite | FeAsS |
Au | Gold | |
Au | ⓘ Gold | Au |
Other Databases
Link to USGS - Alaska: | SR097 |
---|
Other Regions, Features and Areas containing this locality
North America PlateTectonic Plate
- Yakutat-Malaspina DomainDomain
This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to
visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders
for access and that you are aware of all safety precautions necessary.