Comet

Past Producer in Alaska, United States with commodity Gold
Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Public Land Survey System information
  6. Commodities
  7. Materials information
  8. Nearby scientific data
  9. Ore body information
  10. Economic information about the deposit and operations
  11. Mining district
  12. Mineral rights holdings
  13. Land status
  14. Workings at the site
  15. Links to other databases
  16. Bibliographic references
  17. Reporter information

Geologic information

Identification information

Deposit ID 10233596
MRDS ID A012103
MAS/MILS ID 0021120065
Record type Site
Current site name Comet
Alternate or previous names Comet MS 0051, Pat # 24660, Comet Extension MS 54a, Pat#24662, Comet Ext M.S. MS 54b, Pat#24662, Thomas MS 52a, Pat# 24660, Thomas M.S. MS 52b, Pat# 24660, Poor Richard MS 53, Pat# 24660, Snow Flake MS 55, Pat# 24660, Last Chance MS 56, Pat# 24660, Banner MS 57, Pat# 24660, Eclipse MS 58, Pat# 24660
Related records 10001362

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: -135.07456, 58.85535 (WGS84)
Elevation 671
Location accuracy 500(meters)

Site location context

Political divisions (FIPS codes)

Juneau(Borough)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Juneau D-4(quadrangle 1:63,360 scale)

Juneau NW(quadrangle 1:100,000 scale)

Juneau(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Lynn Canal(hydrologic unit)

Northern Southeast Alaska(hydrologic accounting unit)

Southeast Alaska(hydrologic subregion)

Alaska(hydrologic region)

Federal lands

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

Public Land Survey System information

Meridian Township Range Section Fraction State
Copper River 035 S 062 E 09 NENENW Alaska

Commodities

Commodity Importance
Gold Primary

Materials information

Materials Type of material
Gold Unknown
Quartz Unknown

Nearby scientific data

Ore Body (1) -135.07456, 58.85535

Economic information

Ore body information

  • Strike N05E
    Dip 70E
    Thickness 1.3M
    Length 210M
    Width 244M
    Area 10HA
    Depth to top 198M
    Field Value
    Type of Orebody #1 FISSURE VEIN
    Shape of Orebody #1 LENTICULAR
    Type of Orebody #2 SHEAR ZONE
    Shape of Orebody #2 TABULAR
    Primary mode of Origin HYDROTHERMAL
    Primary Ore Control FRACTURING
    Secondary Ore Control FAULTING
    Degree of Wallrock Alter. SLIGHT
    Type of Wallrock Alter. #1 PROPYLITIC
    Strike And Dip N05E:70E
    Minimum Depth to Top 198
    Avg. Thick. Unconsol. Mat. 0
    Min. Thick. Unconsol. Mat. 0
    Total Surface Area (HA) 10
    Date of Last Modification 830321

Economic information about the deposit and operations

Operation type Surface-Underground
Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1890
Year of first production 1896

Mining district

District name Juneau District

Mineral rights holdings

Type of mineral rights Patented
Type of mineral rights Located Claim

Land status

Ownership category Private

Workings at the site

  • Type of workings Underground
    Length 1357M
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method PROPOSED
    Mining Method SHRINKAGE METHODS
    Swell Factor .56
    Percent Waste Rock 2
    Hardness of Rock HARDROCK FISSURED WITH MODERATE WATER
    Rock Characteristics ONE SYSTEM OF WEAKNESS PLANES
    Rock Support Chars. SUPPORTING
    Mine Support Chars. TIMBER
    Avg. Length of Adits (m) 671
    Number of Adits 1
    1st Condition of Workings UNKNOWN
    Capacity 136
    Capacity Units MT ORE/DAY
    Unit Production Cost 17.53
    Units of Production $/MT ORE
    Operating Days per Year 360
    Operating Shifts per Day 1
    Year of Information 1977

Reference information

Bibliographic references

Reporter information

Type Date Name Affiliation Comment
Reporter 13-JUL-1995 Mirl U.S. Bureau of Mines

Beyond USGS

Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.

External references

Authoritative Alaska resources

These are landing pages for further research — the state agencies don't currently expose per-mine deep links.