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Unnamed (north of Boulder Creek, near hill 1293)

Occurrence in Alaska, United States with commodities Gold, Arsenic, Lead, Zinc
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Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Commodities
  6. Materials information
  7. Alteration
  8. Mineral occurrence model information
  9. Nearby scientific data
  10. Economic information about the deposit and operations
  11. Mining district
  12. Links to other databases
  13. Bibliographic references
  14. General comments
  15. Reporter information

Geologic information

Identification information

Deposit ID 10307986
Record type Site
Current site name Unnamed (north of Boulder Creek, near hill 1293)

Geographic coordinates

Geographic coordinates: -165.52018, 64.66268 (WGS84)
Relative position The occurrence is about 500 feet south-southwest of hill 1293 near the center of section 32, T. 9 S., R. 34 W., Kateel River Meridian. It is on the ridge crest about a half-mile north of Twin Mountain Creek (shown as Twin Mtn Ck on the map). The location is accurate within about 500 feet.

Site location context

Political divisions (FIPS codes)

Nome(Census area)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Nome C-2(quadrangle 1:63,360 scale)

Solomon NW(quadrangle 1:100,000 scale)

Nome(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Nome(hydrologic unit)

Norton Sound(hydrologic accounting unit)

Northwest(hydrologic subregion)

Alaska(hydrologic region)

Federal lands

Sitnasuak Native Corporation(ANCSA Village)

ANCSA Village NTVPIC(Type of land area)

NTVPIC(Federal land areas administered by NTVPIC)

Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Gold Primary
Arsenic Critical Secondary
Lead Secondary
Zinc Critical Secondary

Materials information

Materials Type of material
Arsenopyrite Ore
Albite Gangue
Quartz Gangue

Alteration

  • (Local) Sulfidation and albitization of schist near the occurrence.

Mineral occurrence model information

Model code 273
USGS model code 36a
Deposit model name Low-sulfide Au-quartz vein
Mark3 model number 27

Nearby scientific data

(1) -165.52018, 64.66268
ListMap

Economic information

Comments on the geologic information

  • Geologic Description = Mineralized schist crops out south of hill 1293 on the ridge crest northwest of theTwin Mountain Creek prospect (NM166). The occurrence was found as a result of a soil geochemistry survey of the Boulder-Twin Mountain Creek area by Kennecott Exploration Company in 1992. The soil survey grid consisted of north-trending lines 1,000 feet apart and east-trending lines 2,000 feet apart. Soils were collected on 200-foot centers (Hawley Resouce Group for Kennecott Exploration Company, written communication, 1992). Soils near this occurrence were strongly anomalous in gold, arsenic, lead, and zinc. Rock samples at the occurrence contained as much as 0.1 ounce of gold per ton and more than 1 percent arsenic. The occurrence is within an area about 400 by 400 feet where soils contain as much as 780 ppm lead, 580 ppm zinc, more than 1,000 ppm arsenic, and more than 100 ppb gold. The occurrence is in an anomalous area along the Twin Mountain-Rodine fault. Country rock at the site is west-dipping calcareous metaturbidite (Bundtzen and others, 1994). The site is moderately oxidized. Galena and sphalerite were not found but probably were present before oxidation.
  • Age = Mid-Cretaceous; postdates regional metmorphism and may be similar in age to low-sulfide gold-quartz veins of the Nome district (see, for example, the Divide prospect, NM058).

Economic information about the deposit and operations

Development status Occurrence

Comments on exploration

  • Status = Inactive

Mining district

District name Nome

Comments on the workings information

  • Workings / Exploration = The occurrence was found during follow-up of a soil geochemistry survey conducted for Kennecott Exploration Company in 1992.

Reference information

Comments on the references

  • Primary Reference = This report

General comments

Subject category Comment text
Deposit Model Name = Low-sulfide Au-quartz veins? (Cox and Singer, 1986; model 36a).

Reporter information

Type Date Name Affiliation Comment
Reporter 12-MAR-00 Hawley, C.C. and Hudson, Travis L. Hawley Resource Group

Beyond USGS

Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.

Maps centered on this site

Authoritative Alaska resources

These are landing pages for further research — the state agencies don't currently expose per-mine deep links.