Christainsen Group

Past Producer in Silver Bow county in Montana, United States with commodities Silver, Copper
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. Alteration
  9. Host and associated rocks
  10. Nearby scientific data
  11. Ore body information
  12. Economic information about the deposit and operations
  13. Mining district
  14. Land status
  15. Production statistics
  16. Workings at the site
  17. Links to other databases
  18. Bibliographic references
  19. General comments
  20. Reporter information

Geologic information

Identification information

Deposit ID 10101951
MRDS ID DC08200
Record type Site
Current site name Christainsen Group

Geographic coordinates

Geographic coordinates: -112.66033, 45.69212 (WGS84)
Elevation 1890
Relative position 4.3 MI N16E OF MELROSE

Site location context

Political divisions (FIPS codes)

Silver Bow(county)

Montana(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Melrose(quadrangle 1:24,000 scale)

Butte South(quadrangle 1:100,000 scale)

Dillon(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Big Hole(hydrologic unit)

Missouri Headwaters(hydrologic accounting unit)

Missouri Headwaters(hydrologic subregion)

Missouri(hydrologic region)

Federal lands

Bureau of Land Management(Bureau of Land Management MT)

Bureau of Land Management MT BLM(Type of land area)

BLM(Federal land areas administered by BLM)

Geographic areas

Country State County
United States Montana Silver Bow

Public Land Survey System information

Meridian Township Range Section Fraction State
Montana Principal 002S 009W 01 CENTER Montana

Comments on the location information

  • INFO FROM LAND.ST :(1975)

Commodities

Commodity Importance
Silver Primary
Copper Primary

Materials information

Materials Type of material
Chalcopyrite Ore
Silver Ore
Kaolinite Gangue
Limonite Gangue
Quartz Gangue

Alteration

  • (Local) Oxidation

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Schist
    Stratigraphic age (youngest) Neoproterozoic

Nearby scientific data

(1) -112.66033, 45.69212

Economic information

Ore body information

  • General form PINCH AND SWELL
    Strike NORTH - SOUTH
    Dip 52 E
    Width 0.76M
    Depth to top 0M

Comments on the geologic information

  • GEOL.DESC: CHALCOPYRITE FRAGMENTS IN COPPER FRAGMENTS IN COPPER-RICH ORE CEMENTING FRACTURED QUARTZ. 20.4% CU, 9 OZ AG PER TON

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Melrose (Soap Gulch) District

Land status

Ownership category Private

Production statistics

  • Year 1914
    Period Pre-1914
    Material ORE
    Accuracy Accurate
    Description Cp_Grade: ^20.4 % Cu, 9 Oz. Ag/Ton
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Silver Silver 254g/mt
    Minor Ore Copper Copper 20wt-pct

Workings at the site

  • Type of workings Surface/Underground
    Overall depth 10.67M

Comments on the workings information

  • TWO OPENINGS 700 FT. APART. NORTHERN WORKING IS AN OPEN CUT, SOUTHERN IS A 100 FT. TUNNEL WITH A 35 FT. RAISE. THE SAME ORE BODY WAS APPARENTLY EXPOSED IN BOTH.

Reference information

Bibliographic references

  • Deposit

    USGS BULL 574, P. 94-95.

  • Deposit

    SAHINEN, U.M., 1950, GEOL. AND ORE DEPOSITS-ROCHESTER MINING DISTRICT, MADISON CO., MT.: MT. BUREAU OF MINES AND GEOL., MEM 19, P. 52

  • Deposit

    CONSV. DIV. COMP. DATE, 05-23-1963

  • Deposit

    1914 RECON WINCHELL, A.N., U.S.G.S. BULLETIN 574

  • Deposit

    1950 GEOLMAP MBMG MEMOIR 19

  • Production

    U.S.G.S. BULL. 574.

General comments

Subject category Comment text
Deposit RICHER ORE AVERAGED 30 INCHES WIDE, PINCHING DOWN TO 6 INCHES IN THE SOUTHERN WORKING. LOW-GRADE ORE (2 % CU) AVERAGED ABOUT 15 FT. WIDE.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAR-1974 Unknown U.S. Geological Survey
Updater 01-JUN-1980 Loen, Jeffrey S. (Pearson, Robert C.) U.S. Geological Survey

Beyond USGS

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