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Greens Creek Prospect

Prospect in Alaska, United States with commodities Zinc, Silver, Lead, Gold, Copper, Bismuth
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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. Host and associated rocks
  8. Nearby scientific data
  9. Geologic structures
  10. Ore body information
  11. Controls for ore emplacement
  12. Economic information about the deposit and operations
  13. Mining district
  14. Land status
  15. Ownership information
  16. Reserves and resources
  17. Workings at the site
  18. Links to other databases
  19. Bibliographic references
  20. General comments
  21. Reporter information

Geologic information

Identification information

Deposit ID 10000482
MRDS ID A010663
Record type Site
Current site name Greens Creek Prospect
Related records 10136645

Geographic coordinates

Geographic coordinates: -134.61867, 58.06641 (WGS84)
Location accuracy 1000(meters)
Relative position Within 2000 Ft

Site location context

Political divisions (FIPS codes)

Juneau(Borough)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Juneau A-2(quadrangle 1:63,360 scale)

Juneau SE(quadrangle 1:100,000 scale)

Juneau(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Admiralty Island(hydrologic unit)

Central Southeast Alaska(hydrologic accounting unit)

Southeast Alaska(hydrologic subregion)

Alaska(hydrologic region)

Federal lands

Admiralty Island National Monument(National Monument)

National Monument FS(Type of land area)

FS(Federal land areas administered by FS)

Tongass National Forest(National Forest)

National Forest FS(Type of land area)

FS(Federal land areas administered by FS)

Geographic areas

Country State
United States Alaska

Comments on the location information

  • LARGE CLAIMS GROUP COVERS EXTENSIVE AREA. COORDINATES ARE CENTRALLY LOCATED. 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 Critical Primary
Silver Primary
Lead Primary
Gold Primary
Copper Secondary
Bismuth Critical Tertiary

Materials information

Materials Type of material
Bornite Ore
Bournonite Ore
Chalcopyrite Ore
Galena Ore
Sphalerite Ore
Tetrahedrite Ore
Barite Gangue
Pyrite Gangue
Pyrrhotite Gangue

Host and associated rocks

  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Pyroclastic Rock > Tuff
    Stratigraphic age (youngest) Late Triassic
  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Argillite

Nearby scientific data

(1) -134.61867, 58.06641
ListMap

Economic information

Geologic structures

Type of structure Local
Structure description Overturned Anticline

Ore body information

  • General form TABULAR, POD
    Strike NW TRENDING
    Dip STEEP
    Thickness 3.35M
    Length 1066.8M
    Depth to top 0M

Controls for ore emplacement

  • Nose Of Overturned Anticline

Comments on the geologic information

  • UTRI AGE NOT CERTAIN. SOME REPORTS HAVE SUGGESTED DEVONIAN AGE FOR HOST ROCKS AND DEPOSIT.

Economic information about the deposit and operations

Development status Prospect
Commodity type Metallic
Deposit size Medium
Significant No
Discovery year 1975
Discoverer Pan Sound Joint Ventures (Marietta Res Intl, Exalas Res, Texas Gulf Res, And Noranda)

Mining district

District name Admiralty District

Land status

Ownership category National Forest

Ownership information

  • Type Owner-Operator
    Owner Noranda Mines, Ltd. (Anaconda Has Purchased (33.8%) Interest From Martin Marietta)

Reserves and resources

  • Type In-situ
    Estimate year 1982
    Commodity Subtype Grade units Group Importance Year
    Zinc Zn 10 wt-pct Zinc Major 1982

Comments on the reserve resource information

  • ADGGS SPEC REPT 31, P. 14

Workings at the site

  • Type of workings Surface/Underground
    Name of workings ADIT AND CROSSCUTS
    Length 1280.16M
  • Type of workings Surface/Underground
    Name of workings DRILLING
    Length 20421.6M

Comments on the workings information

  • PLANNED UNDERGROUND OPERATION (USING CUT-AND-FILL METHOD). WORKINGS INCLUDE 4200 FT ADIT AND CROSSCUTS(S). MORE THAN 67,000 FT OF DRILLING.

Comments on development

  • PRODUCTION SCHEDULED FOR 1987 OR 1988. 800 TON PER DAY YEAR-ROUND OPERATIONS PLANNED.

Reference information

Bibliographic references

  • Deposit

    ADGGS SPEC REPT 31, P. 14-15

  • Deposit

    ALASKA CONSTRUCTION AND OIL, SEPT 1982, P. 44-48

General comments

Subject category Comment text
Deposit MASSIVE BANDED ZN-RICH ORE OCCURS IN 5 STRATIFORM PODS WHICH AVERAGE 11 FT THICK. CHALCOPYRITE-BORNITE VEINS ARE STRATIGRAPHICALLY BELOW (?) THESE PODS. 3500 FT STRIKE LENGTH IS MINIMUM.
Deposit SELECTIVE FLOTATION PROCESS WILL PRODUCE TWO CONCENTRATES: LEAD AND ZINC. THE LEAD CONCENTRATE WILL CARRY THE GOLD AND SILVER. ; INFO.SRC : 1 PUB LIT; 5 PERS COMM
Deposit Discovery Year: MID 1970'S

Reporter information

Type Date Name Affiliation Comment
Reporter 01-APR-84 Elliott, R. L. U.S. Geological Survey PARSED DATA INTO ORE BODY MULTIVALUED FIELDS
Editor 13-APR-94 Mosier, Dan U.S. Geological Survey PARSED DATA INTO WORKINGS MULTIVALUED FIELDS
Editor 30-MAY-95 Waller, Nichelle (Mosier, Dan) U.S. Geological Survey
Editor 30-MAY-95 Waller, Nichelle (Mosier, Dan) U.S. Geological Survey

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.