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Mt. Eielson Prospects

Occurrence in Alaska, United States with commodities Zinc, Silver, Lead, Gold, Copper
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Geologic information

Identification information

Deposit ID 10000626
MRDS ID A011239
Record type Site
Current site name Mt. Eielson Prospects
Alternate or previous names Mt. Eielson District, Copper Mountain District, Claims: Hugh John, Christenia, Sour Dough, Snowdrift, Virginia, Denver, Marjorie, Matheson, Carrie, Tennesee, Georgia, Kelly, Jiles, Isobel, Mackenzie, Mary, Highlander, Cleary

Geographic coordinates

Geographic coordinates: -150.32647, 63.39401 (WGS84)
Location accuracy 1000(meters)
Relative position NUMEROUS CLAIMS STAKED ON N SLOPE OF MT. EIELSON, BETWEEN MULDROW GL. AND THOROFARE CR.
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Geographic areas

Country State
United States Alaska

Public Land Survey System information

Meridian Township Range Section Fraction State
017S 014W;015W 31,32;36 Alaska

Comments on the location information

  • GEODETIC COORDINATES GIVE APPROXIMATE CENTER OF CLAIM GROUP; CLAIMS COVER MUCH OF THE AREA GIVEN IN CADASTRAL COORDINATES LAND STATUS VALUE CALCULATED 6-94 USING GIS OVERLAY ANALYSIS WITH BLM 1:2,500,000 SCALE OWNERSHIP STATUS MAP (1991).

Commodities

Commodity Importance
Zinc Primary
Silver Primary
Lead Primary
Gold Secondary
Copper Secondary

Materials information

Materials Type of material
Chalcopyrite Ore
Malachite Ore
Pyrargyrite Ore
Sphalerite Ore
Tetrahedrite Ore
Clinozoisite Gangue
Epidote Gangue
Pyrite Gangue
Quartz Gangue
Zoisite Gangue

Analytical data

Result CHANNEL SAMPLES TAKEN BY USBM: 1.14 TO 7.35% PB, 2.42 TO 8.99% ZN, 0.10 TO 1.40% CU, TRACE AU, AND 0.22 OZ TO 9.80 OZ/TON AG, USBM RI 4121, P. 6-9
Result SOME ASSAYS OF GULENA SHOW MORE THAN 200 OZ/TON AG AND SOME GOLD BUT THE DEPOSITS TYPICALLY CONTAIN LESS THAN 40 OZ/TON AG, A SMALL PERCENTAGE OF PB AND ZN AND TRACE AMOUNTS OF AU, USGS BULL 1246, P. 229-230

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone

Nearby scientific data

(1) -150.32647, 63.39401
ListMap

Geologic structures

Type of structure Local
Structure description Shear Zones In Lost Rock

Ore body information

  • Width 609.6M
    Length 6437.2M

Controls for ore emplacement

  • Calcareous Beds

Comments on the geologic information

  • PALEOZOIC CALCAREOUS SEDIMENTS INTIMATELY INTRUDED BY LARGE TERTIARY GRANODIORITE PLUTON AND NUMEROUS DIKES AND SILLS EMANATING FROM IT PRODUCED A BROAD BAND OF MINERALIZATION ALONG CONTACT; MINERALIZATION OCCURRED SELECTIVELY ALONG LIMESTONE BEDS AND IN TWO STAGES: 1) EPIDOTIZATION AND 2.) REPLACEMENT OF EPIDOTE MINERALS BY SULPHIDES.

Economic information

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1920
Discoverer J. B. Quigley

Mining district

District name Kantishna

Land status

Ownership category National Park

Comments on the reserve resource information

  • USGS OFR 16, P. 6-7

Comments on the workings information

  • SEVERAL SHORT ADITS, PROSPECT PITS AND OPEN CUTS

Comments on development

  • USBM EXPLORATION IN 1943, ORE DID NOT RESPOND WELL IN FLOTATION TESTS, RESULTS OF SAMPLING AND BENEFICIATION TESTS IN USBM RI 4121, P. 5-13

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Mineral Resources Data System MRDS A011239

Bibliographic references

  • Deposit

    DAVIS, J.A., 1923, THE KANTISHNA REGION, ALASKA IN STEWART, B.D., ANNUAL REPORT OF THE MINE INSPECTOR TO THE GOVERNOR OF ALASKA, 1922: JUNEAU, ALASKA, P. 134-137

  • Deposit

    USGS BULL 755, P. 42-43

  • Deposit

    USGS BULL 792, P. 107-108

  • Deposit

    USGS BULL 836, P. 314-318

  • Deposit

    USGS BULL 849-D, P. 231-287

  • Deposit

    USGS OFR 16, P. 1-7

  • Deposit

    USBM RI 4121, P. 1-13

  • Deposit

    USGS OFR 51, P. 81

  • Deposit

    USGS BULL 1246, P. 229-230

General comments

Subject category Comment text
Deposit SULFIDES OCCUR AS REPLACEMENTS OF LIMESTONE BEDS, DISSEMINATED IN LIMESTONE AND LESS COMMONLY AS VEIN FILLINGS IN GRANODIORITE; IN BROAD BELT AROUND CONTACT WITH TERTIARY PLUTON
Deposit RELATED: CARLSON AND AVERIL; MINERAL ASSEMBLAGE SUGGESTIVE OF THE PRESENCE OF URANIUM, USGS OFR51, P. 81 ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT

Reporter information

Type Date Name Affiliation Comment
Reporter 01-NOV-84 Leonard, Kenneth R. (Elliott, R. L.) U.S. Geological Survey
Editor 13-APR-94 Mosier, Dan U.S. Geological Survey