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Macbruson Claims Claims

Occurrence in Lincoln county in Nevada, United States with commodities Tungsten, Molybdenum, Gold, Silver
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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. Mineral occurrence model information
  9. Host and associated rocks
  10. Nearby scientific data
  11. Geologic structures
  12. Economic information about the deposit and operations
  13. Mining district
  14. Land status
  15. Links to other databases
  16. Bibliographic references
  17. General comments
  18. Reporter information

Geologic information

Identification information

Deposit ID 10037368
MRDS ID M032064
Record type Site
Current site name Macbruson Claims Claims
Alternate or previous names Bruson Prospect, NBMG Sample Sites 1449, 1450
Related records 10295724

Geographic coordinates

Geographic coordinates: -114.29165, 36.96165 (WGS84)
Elevation 1006
Relative position ABOUT 2 MILES S OF GOURD SPRING ON E SIDE OF MORMON MOUNTAINS.

Site location context

Political divisions (FIPS codes)

Lincoln(county)

Nevada(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Davidson Peak(quadrangle 1:24,000 scale)

Overton(quadrangle 1:100,000 scale)

Las Vegas(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Lower Virgin(hydrologic unit)

Lower Colorado-Lake Mead(hydrologic accounting unit)

Lower Colorado-Lake Mead(hydrologic subregion)

Lower Colorado(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 Lincoln

Public Land Survey System information

Meridian Township Range Section Fraction State
011S;012S 069E;069E 32,33;04;33;04 Nevada

Comments on the location information

  • AREA UNSURVEYED, UTM'S PROBABLY ACCURATE

Commodities

Commodity Importance
Tungsten Critical Primary
Molybdenum Primary
Gold Secondary
Silver Secondary

Materials information

Materials Type of material
Molybdenite Ore
Powellite Ore
Scheelite Ore
Epidote Gangue
Garnet Gangue
Idocrase Gangue
Muscovite Gangue
Tourmaline Gangue

Analytical data

Result SEMIQUANTITATIVE SPECTRO GRAPHIC ANALYSIS (BY TSCHANTZ & PAMPEYAN): GREATER THAN 10% SI, AL, CO, 7% FE, 1.5% MG, NA, TI, .4 W, .3 MN, .15 SR, BA, BE, V, ZR, AND .007 BI, NB, SR, Y. COMPOSITE SAMPLE BY US BUR. MINES CONTAINED 1.08% WO3. NBMG SAMPLES 1449 AND 1450 CONTAIN, RESPECTIVELY, 2000 PPM MN, 0 AND 100 PPM AG, 0 AND 300 PPM AU, 100 AND 0 PPM B, 200 AND 100 PPM BA, 7 AND 150 PPM BE, 0 AND 200 PPM MO, 100 AND 70 PPM PB, 0 AND 100 PPM SB, 300 AND 0 PPM SN, 500 AND 100 PPM SR, 700 AND 0 PPM V, 1000 AND 10 000 PPM W. NBMG SAMPLES 1449 AND 1450 CONTAIN, RESPECTIVELY, 2000 PPM MN, 0 AND 100 PPM AG, 0 AND 300 PPM AU, 100 AND 0 PPM B, 200 AND 100 PPM BA, 7 AND 150 PPM BE, 0 AND 200 PPM MO, 100 AND 70 PPM PB, 0 AND 100 PPM SB, 300 AND 0 PPM SN, 500 AND 100 PPM SR, 700 AND 0 PPM V, 1000 AND 10 000 PPM W.

Mineral occurrence model information

Model code 42
USGS model code 14a
Deposit model name W skarn

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Pegmatite
    Stratigraphic age (youngest) Neoproterozoic
  • Host or associated Host
    Rock type Metamorphic Rock > Amphibolite

Nearby scientific data

(1) -114.29165, 36.96165
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Thrust Fault (Plate Composed Of Penn Limestone)
Type of structure Local
Structure description Normal Faults Along E Flank Of Range

Comments on the geologic information

  • DISSEMINATED SCHEELITE IN AMPHIBOLITE NEAR LARGE PEGMATITE BODIES

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Gourd Springs District District

Land status

Ownership category Private

Comments on the workings information

  • REMAINS OF STONE CABINS, OLD HAULAGE ROADS, MINOR PROSPECT PITS, NUMEROUS CUTS, 20-FT SHAFT, ALL IN A 200-FT SQUARE AREA. NO UNDERGROUND WORKINGS NOTED IN 1983.

Comments on development

  • 28 CLAIMS. INTERMITTENTLY EXPLORED IN 1920'S. NO ACTIVITY AT TIME OF EXAMINATION IN 1983.

Reference information

Bibliographic references

  • Deposit

    TSCHANTZ PAMPEYAN, 1970, GEOLOGY & MINERAL DEPOSITS OF LINCOLN CO., NEV BUR MINES BULL 73

  • Deposit

    SMITH, P. AND BENTZ, J.,1983, FIELD EXAMINATION REPORT, AUG 29, 1983.

  • Deposit

    STAGER, H. K., MANUSCRIPT IN PREPARATION ON TUNGSTEN IN NEVADA.

  • Deposit

    MORMON MOUNTAINS G-E-M RESOURCES AREA TECHNICAL REPORT, FOR BLM, 1983.

General comments

Subject category Comment text
Deposit CLOTS AND STRINGERS OF SCHEELITE AND POWELLITE IN SKARN. QUARTZ PEGMATITE ALSO CARRIES FINE SPRAYS AND CLOTS OF MOLYBDENITE AND OXIDIZED PYRITE CRYSTALS. LATE STAGE OPALINE SILICA COATS ROCKS. GARNETIFEROUS PHYLLITE/ SCHIST IN FLOAT. INTRUSIVE DIKES (N30E, 30 NW) ARE INTENSELY FRACTURED AND CRUSHED AT EXPOSED BASE (OR LOWEST UNIT). THIN QUARTZ VEINLETS 0.5-1 FT WIDE ALSO CARRY SCHEELITE. A THIN TACTITE ZONE ABOUT 200 FT LONG BORDERS THE GRANITE PEGMATITE, WHICH ALSO CONTAINS SMALL AMOUNTS OF SCHEELITE.
Deposit DISTRICT UNORGANIZED ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT; 3 FIELD OBSERV

Reporter information

Type Date Name Affiliation Comment
Reporter 01-FEB-1980 Harner, Joy L. (Roberts, Ralph J.) U.S. Geological Survey
Updater 01-SEP-1984 La Pointe, D.D. (Tingley, J.V.) 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.