Unnamed Occurrence (ARDF - NM232; near VABM 592; south of Banner Peak), Nome Mining District, Nome Census Area, Alaska, USAi
| Regional Level Types | |
|---|---|
| Unnamed Occurrence (ARDF - NM232; near VABM 592; south of Banner Peak) | - not defined - |
| Nome Mining District | Mining District |
| Nome Census Area | Census Area |
| Alaska | State |
| USA | Country |
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Latitude & Longitude (WGS84):
64° 33' 51'' North , 165° 26' 13'' West
Latitude & Longitude (decimal):
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Nome | 3,806 (2018) | 7.2km |
Location: This occurrence is at an elevation of 400 to 500 feet on the southwest flank of Banner Peak. It is about 800 feet southwest of VABM 592 in the east-central part of section 3, T. 11 S., R. 34 W., Kateel River Meridian. It is locality 28 of Hummel (1962 [MF-247]).
Geology: Hummel (1962 [MF 247]) described old prospect pits south of Banner Peak near hill elevation 592 that contained lead- and antimony-bearing minerals, presumably galena and stibnite. The area was included in a soil geochemical survey conducted by BHP in 1990 and was anomalous in arsenic and gold. Drilling and trenching in 1992 by Newmont Mining Company identified replacement masses of tabular albite almost pegmatoid in appearance. These masses contained arsenopyrite and assayed as much as 0.25 ounce of gold per ton in zones as much as 5 feet thick. The masses appear to be podiform, and continuity was not demonstrated. They resemble the albitic replacement deposits at Alpha Ridge (NM171), Goodluck Gulch (NM202), and the Walsh Cut (NM214) at Rock Creek. Country rock in the area south of Banner Peak is mainly graphitic schist and quartzite (Bundtzen and others, 1994).
Workings: Old exploration pits and trenches are of pre-1920 vintage. A soil geochemical survey was completed in 1990 by BHP, and trenching and drilling was done in 1992 by Newmont Mining Company.
Age: Mid-Cretaceous or younger; superimposed on schist metamorphosed during the mid-Cretaceous.
Alteration: Albitization.
Commodities (Major) - Au; (Minor) - Pb, Sb
Development Status: No
Deposit Model: Albitic replacements in schist; allied to Low-sulfide Au-quartz veins (Cox and
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
6 valid minerals.
Detailed Mineral List:
| ⓘ Albite Formula: Na(AlSi3O8) |
| ⓘ Arsenopyrite Formula: FeAsS |
| ⓘ Galena Formula: PbS |
| ⓘ Pyrite Formula: FeS2 |
| ⓘ Quartz Formula: SiO2 |
| ⓘ Stibnite Formula: Sb2S3 |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| ⓘ | Galena | 2.CD.10 | PbS |
| ⓘ | Stibnite | 2.DB.05 | Sb2S3 |
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
| ⓘ | Arsenopyrite | 2.EB.20 | FeAsS |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Quartz | 4.DA.05 | SiO2 |
| Group 9 - Silicates | |||
| ⓘ | Albite | 9.FA.35 | Na(AlSi3O8) |
List of minerals for each chemical element
| O | Oxygen | |
|---|---|---|
| O | ⓘ Albite | Na(AlSi3O8) |
| O | ⓘ Quartz | SiO2 |
| Na | Sodium | |
| Na | ⓘ Albite | Na(AlSi3O8) |
| Al | Aluminium | |
| Al | ⓘ Albite | Na(AlSi3O8) |
| Si | Silicon | |
| Si | ⓘ Albite | Na(AlSi3O8) |
| Si | ⓘ Quartz | SiO2 |
| S | Sulfur | |
| S | ⓘ Arsenopyrite | FeAsS |
| S | ⓘ Galena | PbS |
| S | ⓘ Pyrite | FeS2 |
| S | ⓘ Stibnite | Sb2S3 |
| Fe | Iron | |
| Fe | ⓘ Arsenopyrite | FeAsS |
| Fe | ⓘ Pyrite | FeS2 |
| As | Arsenic | |
| As | ⓘ Arsenopyrite | FeAsS |
| Sb | Antimony | |
| Sb | ⓘ Stibnite | Sb2S3 |
| Pb | Lead | |
| Pb | ⓘ Galena | PbS |
Other Databases
| Link to USGS - Alaska: | NM232 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- Brooks-Seward DomainDomain
- Nome ComplexAccretionary Complex
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