New Windfall Shaft

Past Producer in Eureka county in Nevada, United States with commodities Gold, Silver, Lead, Copper, Arsenic, Zinc
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. Links to other databases
  18. Bibliographic references
  19. General comments
  20. Reporter information

Geologic information

Identification information

Deposit ID 10044652
MRDS ID M232201
Record type Site
Current site name New Windfall Shaft

Geographic coordinates

Geographic coordinates: -115.97951, 39.45437 (WGS84)
Elevation 2329

Site location context

Political divisions (FIPS codes)

Eureka(county)

Nevada(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Pinto Summit(quadrangle 1:24,000 scale)

Mount Hamilton(quadrangle 1:100,000 scale)

Ely(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Diamond-Monitor Valleys(hydrologic unit)

Central Nevada Desert Basins(hydrologic accounting unit)

Central Nevada Desert Basins(hydrologic subregion)

Great Basin(hydrologic region)

Federal lands

Bureau of Land Management(Bureau of Land Management NV)

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

BLM(Federal land areas administered by BLM)

Geographic areas

Country State County
United States Nevada Eureka

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 018N 053E 11 Nevada

Comments on the location information

  • UTM PRECISION 100M

Commodities

Commodity Importance
Gold Primary
Silver Primary
Lead Primary
Copper Tertiary
Arsenic Critical Tertiary
Zinc Critical Tertiary

Materials information

Materials Type of material
Gold Ore

Alteration

  • (Local) Smalluanities Of Silica And Iron Occur As Veinlets Hamburg Dolomite Alterred To "Sandolomite". Rock Has Texture And Look Of Dolomite But Has Been Subjected To Interanular Corrosion Causing Disintegration.

Mineral occurrence model information

Model code 75
USGS model code 19c
Deposit model name Distal disseminated Ag-Au
Mark3 model number 18

Host and associated rocks

  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite
    Stratigraphic age (youngest) Holocene
    Stratigraphic age (youngest) Late Cambrian
    Stratigraphic age (youngest) Late Cambrian
  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Dolomite
    Rock unit name Hamburg Dolomite
    Rock description Hamburg Dolomite

Nearby scientific data

(1) -115.97951, 39.45437

Economic information

Geologic structures

Type of structure Local
Structure description Ne-Striking Transverse Faults

Ore body information

  • General form IRREGULAR

Controls for ore emplacement

  • Intersection Of Faults And Fissures W/Hamburg Delamite

Comments on the geologic information

  • GEOL.COM: THE WINDFALL ORE BODIES DIFFER MARKEDLY FROM THE OTHER MINERALIZED BODIES IN THE DISTRICT IN THAT THEY ARE LOW-GRADE GOLD ORE SHOOTS WITH INDISTINCT ASSAY WALLS THE SHOOTS EXHIBITED MARKED STRUCTURAL AND STRATIGRAPHIC CONTROL BEING LOCALIZED THE INTERSECTION OF NE-STRIKING FISSURES OR FAULTS W/THE HAMBURG DOLOMITE. (NOLAN, 1962)

Economic information about the deposit and operations

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

Mining district

District name Eureka District

Comments on the production information

  • LARGE LOW-GRADE ORE-BODIES OF GOLD

Comments on the workings information

  • SHAFT

Comments on development

  • SHAFT IS PART OF THE WINDFALL MINE

Reference information

Bibliographic references

  • Deposit

    ROBERTS R. J., ETAL (1967) GEOLOGY AND MINERAL RESOURCES OF EUREKA CO. NEV.,EV BUREAU OF MINES BULL 64

  • Deposit

    US BUREAU OF MINES (ELY) MILS NO 112, REFERENCE NO 3201100141

  • Deposit

    NOLAN T.B. (1962) THE EUREKA MINING DISTRICT, USGS PROF PAPER 406

  • Deposit

    NBMG, 1994, MI-1993

  • Production

    NOLAN, T.B., (1962) NBMG MI-1993

  • Reserve-Resource

    NBMG MI-1993

General comments

Subject category Comment text
Deposit LOW-GRADE GOLD ORE SHOOTS WITH INDISTINCT ASSAY WALLS. SHOOTS ARE LOCALIZED BY INTERSECTION OF FISSURES AND FAULTS WITH HAMBURGOLOMITE
Deposit PREDOMINANTY A PRODUCER OF GOLD, THIS SHAFT IS PART OF THE WINDFALL MINE ; INFO.SRC : 1 PUB LIT

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAR-1980 Kirkham, Richard A. Nevada Bureau of Mines and Geology
Updater 06-NOV-1992 Li, Zhiping (Moyer, Lorre A.) U.S. Geological Survey CHECKED AND MODIFIED ROCK TYPE, ROCK UNIT AND AGES FIELDS.
Editor 01-SEP-1994 Mosier, Dan U.S. Geological Survey

Beyond USGS

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

External references

Authoritative Nevada resources

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