1. Mineral Resources
  2. Online Spatial Data
  3. Mineral Resource Data System (MRDS)

Unnamed (near upper Niukluk River)

Prospect in Alaska, United States with commodities Silver, Copper, Lead, Zinc
Map
XML
JSON
KML
C
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 10307295
Record type Site
Current site name Unnamed (near upper Niukluk River)

Geographic coordinates

Geographic coordinates: -163.86933, 65.19833 (WGS84)
Relative position This prospect is on a ridge crest along the south side of an unnamed east headwater tributary of Niukluk River. It is about 2,000 feet south of the creek at an elevation of approximately 2,000 feet. It is 4,500 feet northwest of the skarn propect at BN110. This is locality 83 of Gamble (1988).

Site location context

Political divisions (FIPS codes)

Nome(Census area)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Bendeleben A-4(quadrangle 1:63,360 scale)

Bendeleben SE(quadrangle 1:100,000 scale)

Bendeleben C(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Nome(hydrologic unit)

Norton Sound(hydrologic accounting unit)

Northwest(hydrologic subregion)

Alaska(hydrologic region)

Federal lands

BLM(Federal land areas administered by BLM)

Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Silver Primary
Copper Primary
Lead Primary
Zinc Critical Primary

Materials information

Materials Type of material
Azurite Ore
Cerussite Ore
Chalcopyrite Ore
Chrysocolla Ore
Galena Ore
Malachite Ore
Limonite Gangue
Pyrite Gangue
Quartz Gangue

Alteration

  • (Local) Abundant secondary minerals are developed from the oxidation of sulfides.

Mineral occurrence model information

Model code 85
USGS model code 22c
Deposit model name Polymetallic veins
Mark3 model number 46

Nearby scientific data

(1) -163.86933, 65.19833
ListMap

Economic information

Comments on the geologic information

  • Geologic Description = Highly oxidized, locally brecciated pyrite-chalcopyrite-galena-bearing drusy comb-quartz veins in high grade metamorphic rocks are present here. Secondary minerals include limonite, azurite, cerussite, chrysocolla, and malachite. Grab samples contain up to greater than 2 % Pb, greater than 2% Cu, 8,200 ppm Zn, 300 ppm Ag, 460 ppm Sb, 1,000 ppm As, 190 ppm Cd, 70 ppm Sn, and 14 ppm Bi (Gamble, 1988). The mineralized rocks occur as float and on dumps of shallow prospect pits or short adits. This locality, and several others in this part of the Bendeleben A-4 quadrangle, are in high grade metamorphic rocks that are structurally above or peripheral to the crosscutting Pargon pluton. The Pargon pluton is mostly granodiorite and assumed to be Cretaceous in age (Till and others, 1986). It was emplaced at shallower depths than the more deep-seated Bendeleben pluton to the east. The metamorphic rocks peripheral to the western Pargon pluton are also intruded by small, felsic dikes and plugs including quartz porphyry and muscovite granite.
  • Age = Cretaceous; this occurrence is probably related to emplacement of the Pargon pluton which is assumed to be Cretaceous in age.

Economic information about the deposit and operations

Development status Prospect

Comments on exploration

  • Status = Inactive

Mining district

District name Council

Comments on the workings information

  • Workings / Exploration = Some shallow prospecting pits or short adit(s) are present here.

Reference information

Bibliographic references

  • Deposit

    Sainsbury, C.L., Hudson, T.L., Ewing, R., and Marsh, W.R., 1972, Reconnaissance geologic maps of the Solomon D-5 and C-5 quadrangles, Seward Peninsula, Alaska: U.S. Geological Survey Open-File Report 511, 12 p., 2 sheets, scale 1:63,360.

  • Deposit

    Till, A.B., Dumoulin, J.A., Gamble, B. ., Kaufman, D.S., and Carroll, P.I., 1986, Preliminary geologic map and fossil data, Soloman, Bendeleben, and southern Kotzebue quadrangles, Seward Peninsula, Alaska: U.S. Geological Survey Open-File Report 86-276, 10 p., 3 plates, scale 1:250,000.

  • Deposit

    Gamble, B.M., 1988, Non-placer mineral occurrences in the Solomon, Bendeleben, and southern part of the Kotzebue quadrangles, western Alaska: U.S. Geological Survey Map MF-1838-B, 13 p., 1 sheet, scale 1:250,000.

Comments on the references

  • Primary Reference = Gamble, 1988

General comments

Subject category Comment text
Deposit Model Name = Polymetallic vein in high-grade metamorphic rocks (Cox and Singer, 1986; model 22c ?)

Reporter information

Type Date Name Affiliation Comment
Reporter 15-MAR-99 Travis L. Hudson Applied Geology

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.