Tmb Associates Claims

Occurrence in Washoe county in Nevada, United States with commodities Gold, Clay

Sections on this page

Identification information
Geographic coordinates
Site location context
Geographic areas
Public Land Survey System information
Commodities
Materials information
Alteration
Mineral occurrence model information
Host and associated rocks
Nearby scientific data
Economic information about the deposit and operations
Mining district
Land status
Ownership information
Links to other databases
Bibliographic references
General comments
Reporter information

Geologic information

Identification information

Deposit ID	10047413
MRDS ID	M242713
Record type	Site
Current site name	Tmb Associates Claims
Alternate or previous names	NBMG Sample Sites 476,477, Lake Range Mont Morillonite

Geographic coordinates

Geographic coordinates:	-119.38879, 40.43349 (WGS84)
Elevation	1402

Site location context

Political divisions (FIPS codes)

Washoe(county)

Nevada(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

San Emidio Desert North(quadrangle 1:24,000 scale)

Kumiva Peak(quadrangle 1:100,000 scale)

Lovelock(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Smoke Creek Desert(hydrologic unit)

Black Rock Desert(hydrologic accounting unit)

Black Rock Desert-Humboldt(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	Washoe

Public Land Survey System information

Meridian	Township	Range	Section	Fraction	State
Mount Diablo	030N	023E	27,34,		Nevada

Comments on the location information

ON A HILL ON THE NE SIDE OF THE SAN EMIDIO DESERT . INFO FROM LAND.ST :(1972)

Commodities

Commodity	Importance
Gold	Primary
Clay	Secondary

Materials information

Materials	Type of material
Gold	Ore
Montmorillonite	Ore
Chalcedony	Gangue

Alteration

(Local) Strong Silicification, Argillization

Analytical data

Result	SAMPLE 476 OF SELECTED FINELY LAMINATED SUBAQUEOUS SINTER CONTAINS 0.02% MG, 0.07% CA, 0.1% TI, 100 PPM MN, 5 PPM AG, 10 PPM B, 1000 PPM BA, 1.5 PPM BE, 20 PPM CU, 50 PPM LA, 100 PPM PB, 100 PPM SR, 20 PPM V, 30 PPM ZR. SAMPLE 477 OF REED-BEARING SINTER CONTAINS 0.02% MG, 0.07% CA, 20 PPM MN, 1.5 PPM AG, 50 PPM B, 500 PPM BA, 2 PPM BE, 10 PPM CU, 50 PPM LA, 100 PPM PB, 100 PPM SR, 20 PPM V, 10 PPM ZR.

Result

SAMPLE 476 OF SELECTED FINELY LAMINATED SUBAQUEOUS SINTER CONTAINS 0.02% MG, 0.07% CA, 0.1% TI, 100 PPM MN, 5 PPM AG, 10 PPM B, 1000 PPM BA, 1.5 PPM BE, 20 PPM CU, 50 PPM LA, 100 PPM PB, 100 PPM SR, 20 PPM V, 30 PPM ZR. SAMPLE 477 OF REED-BEARING SINTER CONTAINS 0.02% MG, 0.07% CA, 20 PPM MN, 1.5 PPM AG, 50 PPM B, 500 PPM BA, 2 PPM BE, 10 PPM CU, 50 PPM LA, 100 PPM PB, 100 PPM SR, 20 PPM V, 10 PPM ZR.

Mineral occurrence model information

Model code	104
USGS model code	25a
Deposit model name	Hot-spring Au-Ag
Mark3 model number	45

Host and associated rocks

Host or associated Host

Rock type Volcanic Rock (Aphanitic) > Pyroclastic Rock > Tuff

Stratigraphic age (youngest) Pliocene

Nearby scientific data

(1)	-119.38879, 40.43349	ListMap

Economic information

Economic information about the deposit and operations

Development status	Occurrence
Commodity type	Both
Deposit size	Small
Significant	No

Mining district

District name	San Emidio Desert Area.

Land status

Ownership category	BLM Administrative Area

Ownership information

Type Operator

Owner Exploration Associates, Of Tucson

First year 1979
Type Owner

Owner Tmb Associates

First year 1979

Type	Operator
Owner	Exploration Associates, Of Tucson
First year	1979

Type	Owner
Owner	Tmb Associates
First year	1979

Comments on the workings information

DRILL ROADS, SHALLOW? DRILL HOLES

Comments on development

CLAIMS IN AREA STAKED BY EXPLORATION ASSOCIATES (OF TUCSON) FOR TMB ASSOCIATES IN 1979. EXPLORED FOR PRECIOUS METALS IN 1979-81; NO PREVIOUS EXPLORATION. SEVERAL KM OF NEW DRILL ROADS, SHALLOW? DRILL HOLES.

Reference information

Links to other databases

Agency	Database name	Acronym	Record ID	Notes
USGS	Mineral Resources Data System	MRDS	M242713

Bibliographic references

Deposit

GARSIDE, L.J., 15 JUN 83, NBMG FIELD EXAMINATION AND SAMPLE ANALYSES.
Deposit

BONHAM, H.F., JR., AND PAPKE, K.G., 1969, NBMG BULL 70, P.108-130.
Deposit

GARSIDE, L.J. AND SCHILLING, J.M., 1979, THERMAL WATERS OF NEVADA; NBMG BULL. 91.
Deposit

NBMG STAFF, 1985, NBMG OFR 85-3.

General comments

Subject category	Comment text
Deposit	THE AREA HAS BEEN KNOWN FOR 15 YRS OR MORE TO CONTAIN SILICIFIED REEDS IN PLIOCENE SEDIMENTARY ROCKS AN AREA OF 2-3 SQ. KM. IN THE PLIOCENE TUFFACEOUS AND VOLCANICLASTIC SEDIMENTARY ROCKS IS ARGILLIZED AND SILICIFIED. UNALTERED EQUIVALENT? STRATA ARE EXPOSED TO THE EAST OF THE LONE MINERALIZED HILL. THE HILL APPEARS TO BE CAPPED BY STRONGLY SILICIFIED SEDIMENTS, WHICH ARE UNDERLAIN AND SURROUNDED? BY ARGILIZED ROCKS. THE SILICIFIED ROCKS CONSIST, IN PART, OF SYN DEPOSITIONAL SUBAQUEOUS SPRING SINTER, PROBABLY PRODUCED BY SUBLACUSTRINE, SILICA-CHARGED HOT SPRINGS WHICH VENTED DURING THE DEPOSITION OF THE PLIOCENE SEDIMENTS. IN ADDITION TO THE REED-BEARING SUBAQUEOUS SINTER, A VERY FINELY AND EVENLY LAMINATED SINTER IS INTERPRETED AS BEING SUBAQUEOUS ALSO. THE PLIOCENE SEDIMENTARY ROCKS ARE GENTLY DIPPING, AND IN THE SILICIFIED AREA CONTAIN IRREGULAR PODS AND LENSES (UP TO 0.5 M THICK) OF LIGHT TO DARK GREY CHALCEDONY, BELIEVED TO BE SINTER. A FEW SILICIFIED HYDROTHERMAL?
Deposit	BRECCIAS WERE NOTED. AT A PROSPECT SYMBOL SHOWN ON THE TOPOMAP APPROX. ON THE SEC 27/SEC28 LINE, ARGILLIZED, TUFFACEOUS SEDIMENTS (SMECTITE CLAYS AND SELENITE GYPSUM ARE PRESENT) ARE EXPOSED. THIS PROSPECT IS PROBABLY THE LAKE RANGE MONTMORILLONITE DESCRIBED BY PAPKE (1969, P.113). ARGILLIC ALTERATION PROBABLY RESULTED FROM HYDROTHERMAL ALTERATION DURING THE PERIOD OF HOT SPRING DISCHARGE IN THE PLIOCENE LAKE PRODUCING A SINTER CAP OVER ARGILLIZED SEDIMENTS.

Subject category

Comment text

Deposit

THE AREA HAS BEEN KNOWN FOR 15 YRS OR MORE TO CONTAIN SILICIFIED REEDS IN PLIOCENE SEDIMENTARY ROCKS AN AREA OF 2-3 SQ. KM. IN THE PLIOCENE TUFFACEOUS AND VOLCANICLASTIC SEDIMENTARY ROCKS IS ARGILLIZED AND SILICIFIED. UNALTERED EQUIVALENT? STRATA ARE EXPOSED TO THE EAST OF THE LONE MINERALIZED HILL. THE HILL APPEARS TO BE CAPPED BY STRONGLY SILICIFIED SEDIMENTS, WHICH ARE UNDERLAIN AND SURROUNDED? BY ARGILIZED ROCKS. THE SILICIFIED ROCKS CONSIST, IN PART, OF SYN DEPOSITIONAL SUBAQUEOUS SPRING SINTER, PROBABLY PRODUCED BY SUBLACUSTRINE, SILICA-CHARGED HOT SPRINGS WHICH VENTED DURING THE DEPOSITION OF THE PLIOCENE SEDIMENTS. IN ADDITION TO THE REED-BEARING SUBAQUEOUS SINTER, A VERY FINELY AND EVENLY LAMINATED SINTER IS INTERPRETED AS BEING SUBAQUEOUS ALSO. THE PLIOCENE SEDIMENTARY ROCKS ARE GENTLY DIPPING, AND IN THE SILICIFIED AREA CONTAIN IRREGULAR PODS AND LENSES (UP TO 0.5 M THICK) OF LIGHT TO DARK GREY CHALCEDONY, BELIEVED TO BE SINTER. A FEW SILICIFIED HYDROTHERMAL?

Deposit

BRECCIAS WERE NOTED. AT A PROSPECT SYMBOL SHOWN ON THE TOPOMAP APPROX. ON THE SEC 27/SEC28 LINE, ARGILLIZED, TUFFACEOUS SEDIMENTS (SMECTITE CLAYS AND SELENITE GYPSUM ARE PRESENT) ARE EXPOSED. THIS PROSPECT IS PROBABLY THE LAKE RANGE MONTMORILLONITE DESCRIBED BY PAPKE (1969, P.113). ARGILLIC ALTERATION PROBABLY RESULTED FROM HYDROTHERMAL ALTERATION DURING THE PERIOD OF HOT SPRING DISCHARGE IN THE PLIOCENE LAKE PRODUCING A SINTER CAP OVER ARGILLIZED SEDIMENTS.

Reporter information

Type	Date	Name	Affiliation	Comment
Reporter	01-JUN-1986	La Pointe, D.D. (Tingley, J.V.)	Nevada Bureau of Mines and Geology
Updater	01-SEP-1994	Li, Zhiping (Peters, 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

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