Henry Prather Prospect

Occurrence in Alaska, United States with commodity Copper

Geologic information

Identification information

Deposit ID 10000854
MRDS ID A011507
Record type Site
Current site name Henry Prather Prospect
Alternate or previous names Hubbard and Elliott Claims
Related records 10258511

Geographic coordinates

Geographic coordinates: -144.10559, 61.64965 (WGS84)
Location accuracy 500(meters)
Relative position DIRECTLY ABOVE TUNNEL ON GOODYEAR CLAIM, LESS THAN 100 FT AWAY
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Geographic areas

Country State
United States Alaska

Comments on the location information

  • SEE CLAIM MAP: USGS BULL 374, P. 64 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

Materials information

Materials Type of material
Bornite Ore
Chalcopyrite Ore
Calcite Gangue
Quartz Gangue

Host and associated rocks

  • Host or associated Associated
    Rock type Metamorphic Rock > Metavolcanic Rock > Mafic Metamorphic Rock > Greenstone
    Rock unit name Nikolai Greenstone
    Rock description Nikolai Greenstone
    Stratigraphic age (youngest) Late Triassic
    Stratigraphic age (youngest) Late Triassic
  • Host or associated Host
    Rock type Metamorphic Rock > Metavolcanic Rock > Mafic Metamorphic Rock > Greenstone

Nearby scientific data

(1) -144.10559, 61.64965

Geologic structures

Type Description Terms
Regional Near Axis Of Elliot Cr. Anticline
Local N Trending Fault With 60 W Dip Cut By Two Parallel Faults Striking N 40 E, Dipping 25 To 30 W

Controls for ore emplacement

  • Fault Control

Comments on the geologic information

  • SEE COMMENTS FOR GOODYEAR PROSPECT; SIMILARITY IN CHARACTER OF ORE BODIES AT HENRY PRATHER AND GOODYEAR INDICATES THAT THEY ARE PROBABLY FAULTED SECTIONS OF THE SAME ORE MASS

Economic information

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No

Comments on the workings information

  • EXPLORED BY OPEN CUT, AS EARLY AS 1902

Comments on development

  • SEE COMMENTS FOR GOODYEAR PROSPECT

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Mineral Resources Data System MRDS A011507

Bibliographic references

  • Deposit

    USGS PP 15, P. 16-19, 26

  • Deposit

    USGS BULL 745, P. 115-118, 120-121

  • Deposit

    USGS BULL 1246, P. 43

  • Deposit

    USGS MF-438, LOC. 65

  • Deposit

    USGS OFR 80-892B, LOC. 55

  • Deposit

    USGS BULL 374, P. 64, 68-69

  • Other Database

    BAG-OFR-80-892B-55

General comments

Subject category Comment text
Deposit LENTICULAR, FAULT BOUNDED ORE BODY 30 FT LONG AND 5 FT WIDE CONTAINS IMPREGNATIONS OF COPPER SULPHIDES AND IS CUT BY 8 TO 12 IN FAULTED CALCITE VEIN CARRYING CHALCOPYRITE AND BORNITE; PROBABLY FAULTED-OUT SECTION OF GOODYEAR VEIN
Deposit SEE GOODYEAR PROSPECT; A TUNNEL ON THE ADJACENT CURTIS CLAIM, JUST W OF GOODYEAR AND HENRY PRATHER, ENCOUNTERED TWO MINERALIZED SHEAR ZONES IN GREENSTONE WHICH WERE REPORTED TO SHOW AU AND AG IN ASSAY; VERY LITTLE DATA EXISTS ON POSSIBLE AU-AG MINERALIZATION IN ELLIOTT CR. AREA ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUN-85 Leonard, Kenneth R. (Elliott, R. L.) U.S. Geological Survey