Hagelbargers Pass Occurrence, Bristol Bay Mining District, Kodiak Island Borough, Alaska, USAi
Regional Level Types | |
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Hagelbargers Pass Occurrence | Occurrence |
Bristol Bay Mining District | Mining District |
Kodiak Island Borough | Borough |
Alaska | State |
USA | Country |
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Latitude & Longitude (WGS84):
58° 13' 46'' North , 154° 44' 52'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Mindat Locality ID:
197869
Long-form identifier:
mindat:1:2:197869:1
GUID (UUID V4):
d34fec4c-b9ae-4d9b-baf0-6a65a33a4df7
This occurrence is in Katmai National Monument.
Location: This occurrence is about 3.5 miles northwest of Hagelbargers Pass near the headwaters of Katmai River. It is at an elevation of about 1,300 feet in the SW1/4 sec. 31, T. 22 S., R. 33 W., of the Seward Meridian. The location is accurate within one-half mile.
Geology: This occurrence is in Upper Tertiary, propylitically-altered, volcanic rocks, that contain banded quartz veins, generally one to five mm thick and finely disseminated pyrite (Church, Riehle, and Goldfarb, 1993). The veins contain quartz, smectite-illite mixed-layer clay, and stilbite. Samples generally contain from 0.15 to 0.45 parts per million (ppm) gold with a maximum value of 2.2 ppm, and up to to 300 ppm arsenic, 200 ppm molybdenum, and 3 ppm silver. The dark color of the quartz bands is due to finely dispersed jordisite (MoS2) (Church, Riehle, and Goldfarb, 1993). The occurrence may represent veining above a concealed low-F porphyry Mo deposit (Church, Riehle, and Goldfarb, 1993).
Workings: Apparently only sampling by government geologists.
Age: Late Tertiary or younger; the veins are in the volcanic rocks of the Aleutian volcanic arc.
Alteration: Wall rocks are propylitically altered and contain disseminated pyrite.
Commodities (Major) - Au; (Minor) - Ag, As, Mo, Zn
Development Status: None
Deposit Model: Polymetallic vein, epithermal gold vein (Cox and Singer, 1986; model 22c, 25).
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
4 valid minerals.
Detailed Mineral List:
ⓘ Gold Formula: Au |
ⓘ Jordisite Formula: MoS2 |
ⓘ Pyrite Formula: FeS2 |
ⓘ Quartz Formula: SiO2 |
ⓘ 'Stilbite Subgroup' Formula: M6-7[Al8-9Si27-28O72] · nH2O |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
Group 1 - Elements | |||
---|---|---|---|
ⓘ | Gold | 1.AA.05 | Au |
Group 2 - Sulphides and Sulfosalts | |||
ⓘ | Jordisite | 2.EA.30 | MoS2 |
ⓘ | Pyrite | 2.EB.05a | FeS2 |
Group 4 - Oxides and Hydroxides | |||
ⓘ | Quartz | 4.DA.05 | SiO2 |
Unclassified | |||
ⓘ | 'Stilbite Subgroup' | - | M6-7[Al8-9Si27-28O72] · nH2O |
List of minerals for each chemical element
H | Hydrogen | |
---|---|---|
H | ⓘ Stilbite Subgroup | M6-7[Al8-9Si27-28O72] · nH2O |
O | Oxygen | |
O | ⓘ Quartz | SiO2 |
O | ⓘ Stilbite Subgroup | M6-7[Al8-9Si27-28O72] · nH2O |
Al | Aluminium | |
Al | ⓘ Stilbite Subgroup | M6-7[Al8-9Si27-28O72] · nH2O |
Si | Silicon | |
Si | ⓘ Quartz | SiO2 |
Si | ⓘ Stilbite Subgroup | M6-7[Al8-9Si27-28O72] · nH2O |
S | Sulfur | |
S | ⓘ Jordisite | MoS2 |
S | ⓘ Pyrite | FeS2 |
Fe | Iron | |
Fe | ⓘ Pyrite | FeS2 |
Mo | Molybdenum | |
Mo | ⓘ Jordisite | MoS2 |
Au | Gold | |
Au | ⓘ Gold | Au |
Other Databases
Link to USGS - Alaska: | MK021 |
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