1. Mineral Resources
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  3. Mineral Resource Data System (MRDS)

S Area

Past Producer in Lyon county in Nevada, United States with commodity Gold
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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. Host and associated rocks
  10. Nearby scientific data
  11. Ore body information
  12. Controls for ore emplacement
  13. Economic information about the deposit and operations
  14. Mining district
  15. Land status
  16. Ownership information
  17. Links to other databases
  18. Bibliographic references
  19. General comments
  20. Reporter information

Geologic information

Identification information

Deposit ID 10099345
MRDS ID RE00024
Record type Site
Current site name S Area

Geographic coordinates

Geographic coordinates: -119.39266, 39.43323 (WGS84)
Elevation 1670

Site location context

Political divisions (FIPS codes)

Lyon(county)

Nevada(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Martin Canyon(quadrangle 1:24,000 scale)

Carson City(quadrangle 1:100,000 scale)

Reno(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Middle Carson(hydrologic unit)

Carson(hydrologic accounting unit)

Central Lahontan(hydrologic subregion)

Great Basin(hydrologic region)

Geographic areas

Country State County
United States Nevada Lyon

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 18N 23E 15 NW OF NE Nevada

Commodities

Commodity Importance
Gold Primary

Comments on the commodity information

  • AG NOTED IN JOHN AND SHERLOCK (1991), BUT ASAMERA DENIED HAVING AG AT THIS SITE (MORROW, 1991).

Materials information

Materials Type of material
Pyrite Gangue
Quartz Gangue

Alteration

  • (Local) Argillic, Silicification, Hydrothermal, Adularia, Sericite

Analytical data

Result WEAK: SB AS HG GEOHEM. ANOMALY

Host and associated rocks

  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite
    Rock unit name Alta
    Rock description Alta
    Stratigraphic age (youngest) Miocene
    Stratigraphic age (youngest) Miocene
    Stratigraphic age (youngest) Miocene
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite

Nearby scientific data

(1) -119.39266, 39.43323
ListMap

Economic information

Ore body information

  • Depth to top 0M
    Depth to bottom 76.2M

Controls for ore emplacement

  • Random-Oriented Fractures, Closely Spaced (Em) N40w Walker Lane Fractures (Lm); Also N30e Approx. 12 Ma Faulting

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1988
Discoverer Asamera (K. Craig)

Mining district

District name Ramsey

Land status

Ownership category BLM Administrative Area

Ownership information

  • Type Owner
    Owner Asamera Minerals (U. S.), Inc.
    First year 1991

Comments on the workings information

  • 216 DRILL HOLES, BULLDOZER CUTS (LM)

Comments on development

  • 216 SHALLOW DRILL HOLES, USUALLY <100 FT, DRILLED. PROPERTY IS DRILLED OFF, BUT NOT ECONOMIC ACCORDING TO ED MORROW. ; ECON.COM: TOO SMALL AND LOW GRADE TO BE ECONOMIC FOR ASAMERA. ASAMERA DELINEATED 400,000 TONS GRADING 0.02 OZ/TON AU, WHICH THEY DID NOT CONSIDER TO BE RESOURCES (MORROW, 1991). GARSIDE WAS TOLD OF GRADES FROM 0.04 TO 0.07 OZ/TON AU AT DEPTHS TO 40 FT. IN ONE PLACE AND 200' IN ANOTHER.

Reference information

Bibliographic references

  • Deposit

    JOHN, D. A., AND SHERLOCK, M.G., 1991, MAP SHOWING MINES AND PROSPECTS IN THE RENO 1X2 QUADRANGLE, NEVADA AND CALIFORNIA, USGS MF-2154-B, SITE #K8

  • Deposit

    GARSIDE, L., 1991, UNPUBLISHED FIELD NOTES, 18 NOV 1988, NBMG

  • Deposit

    MORROW, ED, ORAL COMMUNICATION, 8 OCT/91, ASAMERA MINERALS US, INC.

  • Deposit

    MCMASTER, LARRY, 1991, ORAL COMMUNICATION, 11 OCT/91

General comments

Subject category Comment text
Deposit ASAMERA SAID THAT THIS IS A SURFACE OCCURRENCE IN WHICH MOST OF THE DEPOSIT MAY HAVE BEEN ERODED OFF. DEPOSIT HAS FLAT BOTTOM, BUT NOT THRUST (LM).
Deposit SCOTT CLARK, DOING A M. SC. AT UNIVERSITY OF IDAHO ON THIS SITE, 208-882-1089 ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT

Reporter information

Type Date Name Affiliation Comment
Reporter 01-OCT-1991 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.