Greenback Prospect

Occurrence in Alaska, United States with commodities Copper, Lead, Zinc

Geologic information

Identification information

Deposit ID 10000613
MRDS ID A011221
Record type Site
Current site name Greenback Prospect
Related records 10185953

Geographic coordinates

Geographic coordinates: -151.11397, 63.20372 (WGS84)
Location accuracy 500(meters)
(click for info)

Geographic areas

Country State
United States Alaska

Comments on the location information

  • PLOTTED FROM USBM OFR 24-78, FIG. 4-1B LAND STATUS VALUE CALCULATED 6-94 USING GIS OVERLAY ANALYSIS WITH BLM 1:2,500,000 SCALE OWNERSHIP STATUS MAP (1991).

Commodities

Commodity Importance
Copper Primary
Lead Secondary
Zinc Secondary

Materials information

Materials Type of material
Chalcanthite Ore
Chalcopyrite Ore
Galena Ore
Malachite Ore
Sphalerite Ore
Garnet Gangue
Pyrrhotite Gangue
Schist Gangue

Alteration

  • (Local) Extensive Oxidation, Manganese Oxides Reported

Analytical data

Result NONE AVAILABLE

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Granitoid > Granite
    Stratigraphic age (youngest) Pliocene
    Stratigraphic age (youngest) Late Permian
    Stratigraphic age (youngest) Late Permian
  • Host or associated Host
    Rock type Metamorphic Rock > Schist

Nearby scientific data

(1) -151.11397, 63.20372

Controls for ore emplacement

  • Distance From Igneous Body

Comments on the geologic information

  • PALEOZOIC GARNET SCHIST CUT BY TERTIARY DIKE

Economic information

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No
Discoverer W. J. Shannon

Mining district

District name Kantishna

Land status

Ownership category National Park

Comments on the workings information

  • SOME OPEN CUTS

Comments on development

  • CLAIM RESTAKED IN 1966 BY ARLY TAYLOR

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Mineral Resources Data System MRDS A011221

Bibliographic references

  • Deposit

    USGS BULL 836, P. 319-320

  • Deposit

    USGS OFR 77-169A, P. 46 LOC. 40

  • Deposit

    USBM OFR 24-78, P. 4-57 AND FIG. 4.1-B

  • Other Database

    BAG-MF-366-31

General comments

Subject category Comment text
Deposit DISSEMINATED ORE IN HIGHLY OXIDIZED COUNTRY ROCK NEAR CONTACT WITH INTRUSIVE
Deposit SEE ALSO: TERMINUS, MAGNET, OLD SOURDOUGH ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT

Reporter information

Type Date Name Affiliation Comment
Reporter 01-OCT-84 Leonard, Kenneth R. (Elliott, R. L.) U.S. Geological Survey