Little Valley Prospect

The Little Valley Prospect is a antimony, gold, and thallium mine located in Tooele county, Utah at an elevation of 6,499 feet.

About the MRDS Data:

All mine locations were obtained from the USGS Mineral Resources Data System. The locations and other information in this database have not been verified for accuracy. It should be assumed that all mines are on private property.

Mine Info

Satelite View

MRDS mine locations are often very general, and in some cases are incorrect. Some mine remains have been covered or removed by modern industrial activity or by development of things like housing. The satellite view offers a quick glimpse as to whether the MRDS location corresponds to visible mine remains.

Site Name

Primary: Little Valley Prospect

Commodity

Primary: Antimony
Primary: Gold
Primary: Thallium

Location

State: Utah
County: Tooele
District: Sheeprock Mountains Area

Land Status

Land ownership: State
Note: the land ownership field only identifies whether the area the mine is in is generally on public lands like Forest Service or BLM land, or if it is in an area that is generally private property. It does not definitively identify property status, nor does it indicate claim status or whether an area is open to prospecting. Always respect private property.

Holdings

Not available

Workings

Not available

Ownership

Owner Name: Steele, Robert And Terry

Owner Name: Steele, Robert And Terry

Production

Not available

Deposit

Record Type: Site
Operation Category: Prospect
Operation Type: Unknown
Discovery Year: 1987
Discovery Method: Ore-Mineral In Place
Years of Production:
Organization:
Significant: N
Deposit Size: S

Physiography

Not available

Mineral Deposit Model

Not available

Orebody

Form: TABULAR

Structure

Type: R
Description: Sevier Fold And Thrust Belt

Type: L
Description: North-South Striking Faults That Terminate To The South Against A Prominent Northwest-Striking Fault

Alterations

Alteration Type: L
Alteration Text: Silicification And Minor Bleaching

Rocks

Name: Limestone
Role: Host
Age Type: Host Rock
Age Young: Late Cambrian

Analytical Data

Analytical Data: A SAMPLE CONTAINING PARAPIERROTITE WAS COLLECTED BY THE UGMS AND CONTAINED: 5 PPB AU, OVER 5000 PPB HG, LESS THAN 20 PPM BA, 21 PPM CU, 255 PPM PB, 186 PPM ZN, 8 PPM MO, LESS THAN 0.5 PPM AG, LESS THAN 1 PPM CO, 13 PPM NI, 166 PPM CR, 286 PPM MN, LESS THAN 10 PPM W, LESS THAN 5 PPM SE, LESS THAN 2 PPM BI, 210 PPM AS, OVER 2000 PPM SB, OVER 100 PPM TL

Materials

Ore: Gold
Ore: Parapierrotite
Gangue: Hematite
Gangue: Quartz
Gangue: Limonite
Gangue: Calcite

Comments

Comment (Development): JASPEROID OUTCROPS SEEN FROM TRUCK WHILE ON RECONNAISSANCE, ONE OUTCROP FOUND TO CONTAIN VISIBLE SULFIDE MINERALIZATION, OTHER OUTCROPS CONTAINED ANOMALOUS SB, TL, AND AU GEOCHEMICAL VALUES

Comment (Deposit): DEPOSIT CONSISTS OF SULFIDE-BEARING JASPEROID. JASPEROID FORMED BY REPLACEMENT OF LIMESTONE ADJACENT TO NORTH STRIKING FAULTS AND FRACTURE ZONES. POD-LIKE DISTRIBUTION OF JASPEROID OVER A 1 MILE STRIKE LENGTH.

Comment (Commodity): ANALYSIS SHOWS STRONG ENRICHMENT IN SB, TL, AND HG; TYPICAL OF A POTENTIAL AU- AND AG- BEARING EPITHERMAL SYSTEM

Comment (Location): LOCATION GIVEN IS THE DISCOVERY OUTCROP WHICH CONSISTS OF MINERALIZED JASPEROID ; INFO FROM LAND.ST :(1977)

Comment (Workings): WORKINGS CONSIST OF ONE TINY DIGGING

Comment (Deposit): THE RARE MINERAL PARAPIERROTITE OCCURS AT THIS LOCALITY. IT WAS DISCOVERED BY X-RAY DIFFRACTION ANALYSIS BY STEVE AXON OF THE USBM, SALT LAKE CITY, UTAH. PARAPIERROTITE IS A THALLIUM-ANTIMONY SULFOSALT (TLSB5S8). ; INFO.SRC : 1 PUB LIT; 3 FIELD OBSERV

References

Reference (Deposit): COHENOUR, R.E., 1959, SHEEPROCK MOUNTAINS, TOOELE AND JUAB COUNTIES, UTAH: UGMS BULL. 63, 201P.

Reference (Deposit): MOORE, W.J., AND SORENSEN, M.L., 1979, GEOLOGIC MAP OF THE TOOELE 1X2 QUADRANGLE, UTAH: USGS MISCELLANEOUS INVESTIGATIONS MAP I-1132, SCALE 1:250,000.

Reference (Deposit): EDENHARTER, A., AND PETERS, T., 1979, HYDROTHERMAL SYNTHESIS OF SULFOSALTS CONTAINING TL: Z. KRISTALLOGR., VOL. 150, NO. 1-4, PP. 169-180.

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