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Cx Deposit

Prospect in Humboldt county in Nevada, United States with commodities Gold, Arsenic, Mercury, Antimony, Zinc
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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. Mineral occurrence model information
  10. Host and associated rocks
  11. Nearby scientific data
  12. Geologic structures
  13. Ore body information
  14. Controls for ore emplacement
  15. Economic information about the deposit and operations
  16. Mining district
  17. Ownership information
  18. Reserves and resources
  19. Workings at the site
  20. Links to other databases
  21. Bibliographic references
  22. General comments
  23. Reporter information

Geologic information

Identification information

Deposit ID 10097325
MRDS ID RE00030
Record type Site
Current site name Cx Deposit

Geographic coordinates

Geographic coordinates: -117.26068, 41.13517 (WGS84)
Elevation 1554
Relative position 27 MILES NE OF WINNEMUCCA, NEVADA

Site location context

Political divisions (FIPS codes)

Humboldt(county)

Nevada(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Adam Peak(quadrangle 1:24,000 scale)

Osgood Mountains(quadrangle 1:100,000 scale)

McDermitt(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Middle Humboldt(hydrologic unit)

Humboldt(hydrologic accounting unit)

Black Rock Desert-Humboldt(hydrologic subregion)

Great Basin(hydrologic region)

Geographic areas

Country State County
United States Nevada Humboldt

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 038N 042E 28,29,32,33 Nevada

Comments on the location information

  • LOCATED BETWEEN PINSON AND MAG DEPOSITS ON THE EAST FLANK OF THE OSGOOD MOUNTAINS, 2500 FT. EAST OF THE PINSON MILL.

Commodities

Commodity Importance
Gold Primary
Arsenic Critical Tertiary
Mercury Tertiary
Antimony Critical Tertiary
Zinc Critical Tertiary

Comments on the commodity information

  • NO AG RECOVERED.

Materials information

Materials Type of material
Calcite Ore
Quartz Ore
Wollastonite Ore

Alteration

  • (Local) Decalcification, Silicification, Oxidation. Decalcification And Iron Oxide Staining Are Associated With Ore. Decalcification Extends Well Into Barren Wall Rocks. Jasperoidal Silicification Occurs Locally.

Analytical data

Result VERY LITTLE GEOCHEMISTRY COMPLETED FOR THIS DEPOSIT. STYLE OF MINERALIZATION AND TRACE ELEMENT SIGNATURE IS SIMILAR TO THE MAG AND PINSON DEPOSITS.

Mineral occurrence model information

Model code 172
USGS model code 26a
Deposit model name Carbonate-hosted Au-Ag
Mark3 model number 15

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
    Rock unit name Osgood Mountain Stock
    Rock description Osgood Mountain Stock
    Stratigraphic age (youngest) Late Cretaceous
    Stratigraphic age (youngest) Late Ordovician
    Stratigraphic age (youngest) Late Cretaceous
    Stratigraphic age (youngest) Late Ordovician
  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone
    Rock unit name Comus Formation
    Rock description Comus Formation

Nearby scientific data

(1) -117.26068, 41.13517
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Northeasterly Pinson "Trend" (Range Front Fault System).
Type of structure Local
Structure description Rocks Are Typically Contorted Due To Pre-Ore Folding. Fault Offsets In The Alluvium Indicate Post-Ore Movement.

Ore body information

  • Strike N30-40E
    Dip 50-60 SE
    Thickness 15.24M
    Length 457.2M
    Width 15.24M
    Depth to top 3.05M

Controls for ore emplacement

  • A Series Of Subparallel Faults. Favorable Host Rocks Are Unmetamorphosed Thin-Bedded Shaly Limestones.

Comments on the geologic information

  • OSGOOD MOUNTAIN STOCK CROPS OUT 1200 FT. WEST OF CX DEPOSIT.

Economic information about the deposit and operations

Development status Prospect
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1983
Discoverer Pinson Mining Co.
Production years SCHEDULED TO BEGIN PRODUCTION IN 1994.

Mining district

District name Potosi District; Getchell Trend

Ownership information

  • Type Owner-Operator
    Owner Pinson Mining Co.,
    Home office P.O. Box 192, Winnemucca, Nv 89445

Reserves and resources

  • Type Milling
    Estimate year 1992
    Commodity Subtype Grade units Group Importance Year
    Gold Au 2.371 g/mt Gold Major 1992
  • Type Leaching
    Estimate year 1992
    Commodity Subtype Grade units Group Importance Year
    Gold Au 0.847 g/mt Gold Major 1992

Comments on the reserve resource information

  • 1992 FIGURES CALCULATED USING A STRIP RATIO OF 12.1:1.

Workings at the site

  • Type of workings Surface
    Length 609.6M
    Overall depth 152.4M
    Overall width 365.76M

Comments on the workings information

  • FIGURES REPRESENT ULTIMATE PIT DESIGN.

Comments on development

  • DISCOVERED UNDER SHALLOW ALLUVIUM IN 1983 BY STEPOUT DRILLING ALONG STRIKE NORTHEAST FROM THE PINSON A-ZONE OREBODY. A SMALL TEST PIT WAS EXCAVATED IN 1990. ; ECON.COM: MILL RECOVERIES EXPECTED TO BE 85-90%.

Reference information

Bibliographic references

  • Deposit

    FOSTER, J.M., AND KRETSCHMER, E.L., 1991, GEOLOGY OF THE MAG DEPOSIT, PINSON MINE, HUMBOLDT COUNTY, NEVADA, IN RAINES, G.L., ET AL, EDS., GEOLOGY AND ORE DEPOSITS OF THE GREAT BASIN, THE GEOLOGICAL SOCIETY OF NEVADA, RENO, P. 845-856

General comments

Subject category Comment text
Deposit ORE OCCURS IN SIX SUB-PARALLEL STRANDS THAT RANGE IN THICKNESS FROM 5 FT. TO 50 FT. AND TYPICALLY HAVE A PINCH-AND-SWELL OR CYMOID LOOP MORPHOLOGY.
Deposit THIS RECORD BASED ON PUBLISHED ARTICLE BY FOSTER AND KRETSCHMER (1991) AND DATA SUPPLIED BY JOSEPH FOSTER (PINSON MINE GEOLOGIST) ON A MRDS QUESTIONNAIRE, MARCH 1992. ; INFO.SRC : 1 PUB LIT

Reporter information

Type Date Name Affiliation Comment
Reporter 01-DEC-1991 Phinisey, J. D. (Marcus, S.) 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 Nevada resources

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