Anchor

Site Name

Primary: Anchor

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Commodity

Primary: Silver
Secondary: Copper
Secondary: Gold
Secondary: Zinc
Secondary: Lead

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Location

State: Nevada
County: Clark
District: Goodsprings

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Land Status

Land ownership: BLM Administrative Area
Note: the land ownership field only identifies whether the area the mine is in is generally on public lands like Forest Service or BLM land, or if it is in an area that is generally private property. It does not definitively identify property status, nor does it indicate claim status or whether an area is open to prospecting. Always respect private property.

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Holdings

Not available

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Workings

Type: Surface

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Ownership

Not available

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Production

Not available

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Deposit

Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Year Last Production: 1952
Discovery Year: 1893
Years of Production:
Organization:
Significant: N
Deposit Size: S

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Physiography

General Physiographic Area: Intermontane Plateaus
Physiographic Province: Basin And Range Province
Physiographic Section: Sonoran Desert
Physiographic Detail: Spring Mountains

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Mineral Deposit Model

Model Name: Polymetallic replacement

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Orebody

Form: FLATENED ELLIPTICAL PIPES

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Structure

Type: R
Description: Thrust Faults (Late Jurpssic, Early Tert). Fredrickson Rift Zone; (Nw Belt Of Shearing).

Type: L
Description: Shallow Synclinal Fold, Normal Faults, Anticlinal Fold.,

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Alterations

Alteration Type: L
Alteration Text: Dolomitization

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Rocks

Name: Limestone
Role: Host
Age Type: Host Rock
Age Young: Mississippian

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Analytical Data

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

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Materials

Ore: Calamine
Ore: Epsomite
Ore: Hydrozincite
Ore: Anglesite
Ore: Galena

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Comments

Comment (Location): INFO FROM LAND.ST :(1972)

Comment (Production): 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.

Comment (Deposit): THERE ARE 2 GROUPS OF ORE SHOOTS, ONE WITH MORE GALENA THAN HYDROZINCITE, AND ONE THAT HAS ONLY ZINC MINERALS

Comment (Workings): WORKINGS CONSIST OF A MAIN INCLINE, DEVELOPED BY SEVERAL LEVELS.202-FT SHAFT WITH 3 LEVELS, 212-FT WINZE FROM 3RD LEVEL.

Comment (Geology): 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.

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References

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

Reference (Deposit): LONGWELL, C.R., ETAL, 1965, GEOLOGY AND MINERAL DEPOSITS OF CLARK CO., NEV., NBMG BULL 62, P186.

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

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

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Nevada Gold

Nevada has a total of 368 distinct gold districts. Of the of those, just 36 are major producers with production and/or reserves of over 1,000,000 ounces, 49 have production and/or reserves of over 100,000 ounces, with the rest having less than 100,000 ounces. Read more: Gold Districts of Nevada.