Anchor

Past Producer in Clark county in Nevada, United States with commodities Silver, Lead, Gold, Copper, Zinc

Geologic information

Identification information

Deposit ID 10047003
MRDS ID M242243
Record type Site
Current site name Anchor

Geographic coordinates

Geographic coordinates: -115.43917, 35.75056 (WGS84)
Elevation 1341
Location accuracy 250(meters)
Relative position 7 MILES WEST OF JEAN., Within 1/8 Mile, Within 1/8 Mile, Within 1/8 Mile, Within 1/8 Mile
(click for info)

Geographic areas

Country State County
United States Nevada Clark

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 25S 58E 23;26 Nevada

Comments on the location information

  • INFO FROM LAND.ST :(1972)

Commodities

Commodity Importance
Silver Primary
Lead Secondary
Gold Secondary
Copper Secondary
Zinc Secondary

Materials information

Materials Type of material
Anglesite Ore
Calamine Ore
Epsomite Ore
Galena Ore
Hydrozincite Ore

Alteration

  • (Local) Dolomitization

Analytical data

Result CRUDE ORE COMMONLY CONTAINED LESS THAN 10% ZN, AND FROM 6 TO 16 OZ AG/TON.

Mineral occurrence model information

Model code 72
USGS model code 19a
Deposit model name Polymetallic replacement
Mark3 model number 47

Host and associated rocks

  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone
    Stratigraphic age (youngest) Mississippian

Nearby scientific data

(1) -115.43917, 35.75056

Geologic structures

Type Description Terms
Regional Thrust Faults (Late Jurpssic, Early Tert). Fredrickson Rift Zone; (Nw Belt Of Shearing).
Local Shallow Synclinal Fold, Normal Faults, Anticlinal Fold.,

Ore body information

  • General form FLATENED ELLIPTICAL PIPES
    Strike WEST TO SOUTHWEST N 20 W
    Dip 20-35W
    Thickness 18.29M
    Plunge 20-30 EASTWARD
    Length 167.64M

Controls for ore emplacement

  • Breccia Zones

Comments on the geologic information

  • THE WORKINGS CUT ACROSS THREE DIFFERENT ROCK TYPES, 1) MASSIVE LIMESTONE, 2) THINLY BEDDED LIMESTONE WITH LENTICS OF PRIMARY CHERT, 3) AND THINLY BEDDED NON-CHERTY LIMESTONE. ORE ZONE CLOSELY COINCIDES WITH CONTACT OF THIN BEDDED SHALY LIMESTONE WITH MASSIVE CHERT-BEARING BEDS ABOVE. GALENA FORMS POORLY-DEFINED LENSES 6-8 INCHES THICK AND 5-10 FT LONG IN BRECCIA ZONES; IN A LARGER ZONE UP TO 50 FT THICK.ZINC MINERALS MORE COMMON IN THE SOUTHERN STOPES, AND GALENA PRESENT THERE IS EMBEDDED IN THE MASSES OF HYDROZINCITE.

Economic information

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1893
Discoverer Richard Duncan
Year of last production 1952

Mining district

District name Goodsprings

Land status

Ownership category BLM Administrative Area

Comments on the production information

  • AG CONTENT IN THE GALENA WAS 1 OZ AG TO EVERY 5-6 % PB IN CONCENTRATE; 1 OZ AG FOR EVERY 10 % PB IN THE CRUDE ORE WITH UNOXIDIZED GALENA. CRUDE PB ORE CONTAINED 50 % PB AND LESS THAN 10 % ZN, BUT CONCENTRATE HAD SLIGHTLY MORE.

Workings at the site

  • Type of workings Surface
    Length 219.46M
    Overall depth 67.97M

Comments on the workings information

  • WORKINGS CONSIST OF A MAIN INCLINE, DEVELOPED BY SEVERAL LEVELS.202-FT SHAFT WITH 3 LEVELS, 212-FT WINZE FROM 3RD LEVEL.

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Mineral Resources Data System MRDS M242243

Bibliographic references

  • Deposit

    ALBRITON, C.C., ETAL, 1954, GEOLOGIC CONTROLS OF LEAD AND ZINC DEPOSITS IN GOODSPRINGS (YELLOW PINE)

  • Deposit

    HEWETT, D.F., 1931, GEOLOGY AND ORE DEPOSITS OF THE GOODSPRINGS QUAD., NEV., USGS PROFESSIONAL PAPER 162, P.160.

  • Deposit

    LONGWELL, C.R., ETAL, 1965, GEOLOGY AND MINERAL DEPOSITS OF CLARK CO., NEV., NBMG BULL 62, P186.

  • Production

    HEWETT, D.F., 1931, GEOLOGY AND ORE DEPOSITS OF THE GOODSPRINGS QUAD., NEV., USGS PROFESSIONAL PAPER 162, P.160. LONGWELL, ET AL., 1965.

General comments

Subject category Comment text
Deposit THERE ARE 2 GROUPS OF ORE SHOOTS, ONE WITH MORE GALENA THAN HYDROZINCITE, AND ONE THAT HAS ONLY ZINC MINERALS

Reporter information

Type Date Name Affiliation Comment
Reporter 01-FEB-82 Lyles, B.F. (Tingley, J.V.) Nevada Bureau of Mines and Geology