Slide Rock-Silver Dollar Group

Past Producer in San Miguel county in Colorado, United States with commodities Silver, Gold, Lead, Copper, Zinc

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
Geologic structures
Ore body information
Controls for ore emplacement
Economic information about the deposit and operations
Mining district
Land status
Links to other databases
Bibliographic references
General comments
Reporter information

Geologic information

Identification information

Deposit ID	10014223
MRDS ID	D010896
Record type	Site
Current site name	Slide Rock-Silver Dollar Group

Geographic coordinates

Geographic coordinates:	-107.97704, 37.85722 (WGS84)
Elevation	3810
Relative position	11.5 MILES S 58 W FROM TELLURIDE

Site location context

Political divisions (FIPS codes)

San Miguel(county)

Colorado(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Mount Wilson(quadrangle 1:24,000 scale)

Silverton(quadrangle 1:100,000 scale)

Durango(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

San Miguel(hydrologic unit)

Upper Colorado-Dolores(hydrologic accounting unit)

Upper Colorado-Dolores(hydrologic subregion)

Upper Colorado(hydrologic region)

Federal lands

Grand Mesa, Uncompahgre and Gunnison National Forests(National Forest)

National Forest FS(Type of land area)

FS(Federal land areas administered by FS)

Lizard Head Wilderness(Wilderness)

Wilderness FS(Type of land area)

FS(Federal land areas administered by FS)

Geographic areas

Country	State	County
United States	Colorado	San Miguel

Public Land Survey System information

Meridian	Township	Range	Section	Fraction	State
New Mexico	042N;041N	010W;010W	33;04	S2 (33); N2 (04)	Colorado

Comments on the location information

(LAND STATUS AND ADMINISTRATIVE AREA LOCATIONS CALCULATED USING GIS OVERLAY ANALYSIS FOR SAN JUAN N. F.). CLAIMS LIE IN UPPER BILK BASIN ALONG UNNAMED EAST-FLOWING TRIBUTARY TO BILK CREEK AROUND SMALL TARN AND 0.5 MILE SE OF WILSON PEAK. PROSPECTS LIE WEST AND NW OF TARN. ELEV AND LAT-LONG GIVEN ARE FOR PROSPECT ON STRONGEST VEIN 1200 FT NW OF TARN (E2 SW SEC. 33). ; INFO FROM LAND.ST :1975

Commodities

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

Materials information

Materials	Type of material
Gold	Ore
Pyrite	Ore
Sphalerite	Ore
Calcite	Gangue
Quartz	Gangue

Alteration

(Local) Oxidation Of Pyrite To Fe Oxides (Gossan)

Analytical data

Result	BROMFIELD AND OTHERS' (1972) FIRE ASSAYS OF GRAB AND CHIP SAMPLES CONTAINED 0.01 TO 0.10 OZ/TON AU, TRACE TO 3.3 OZ/TON AG, TRACE TO 0.10% CU, 0.08 TO 9.76% PB, 0.10 TO 8.85% ZN. SEMIQUANTITATIVE SPECTROGRAPHIC ANALYSIS OF HIGH-GRADE VEIN SAMPLE FROM DUMP CONTAINED 10% FE, 0.02% MG, 0.07% CA, 0.03% TI, 500 PPM MN, 70 PPM AG, 10000 PPM AS, LT 10 PPM B, 100 PPM BA, LT 10 PPM BI, GT 500 PPM CD, 20 PPM CO, 5 PPM CR, 1000 PPM CU, LT 5 PPM MO, LT 5 PPM NI, GT 20000 PPM PB, 200 PPM SB, LT 10 PPM SN, LT 100 PPM SR, 20 PPM V, GT 10000 PPM ZN
Result	CHEMICAL ANALYSIS, 6 PPM AU, 180 PPM AG, 2300 PPM CU, 14000 PPM PB, 96000 PPM ZN.

Result

BROMFIELD AND OTHERS' (1972) FIRE ASSAYS OF GRAB AND CHIP SAMPLES CONTAINED 0.01 TO 0.10 OZ/TON AU, TRACE TO 3.3 OZ/TON AG, TRACE TO 0.10% CU, 0.08 TO 9.76% PB, 0.10 TO 8.85% ZN. SEMIQUANTITATIVE SPECTROGRAPHIC ANALYSIS OF HIGH-GRADE VEIN SAMPLE FROM DUMP CONTAINED 10% FE, 0.02% MG, 0.07% CA, 0.03% TI, 500 PPM MN, 70 PPM AG, 10000 PPM AS, LT 10 PPM B, 100 PPM BA, LT 10 PPM BI, GT 500 PPM CD, 20 PPM CO, 5 PPM CR, 1000 PPM CU, LT 5 PPM MO, LT 5 PPM NI, GT 20000 PPM PB, 200 PPM SB, LT 10 PPM SN, LT 100 PPM SR, 20 PPM V, GT 10000 PPM ZN

Result

CHEMICAL ANALYSIS, 6 PPM AU, 180 PPM AG, 2300 PPM CU, 14000 PPM PB, 96000 PPM ZN.

Mineral occurrence model information

Model code	72
USGS model code	19a
Deposit model name	Polymetallic replacement
Mark3 model number	47

Host and associated rocks

Host or associated

Associated

Rock type

Plutonic Rock > Mafic Intrusive Rock > Diorite

Stratigraphic age (youngest)	Pliocene
Stratigraphic age (youngest)	Pliocene

Host or associated	Associated
Rock type	Plutonic Rock > Mafic Intrusive Rock > Gabbro
Rock unit name	Wilson Peak Stock--Microgranogabbro;Wilson Peak Stock--Granodiorite
Rock description	Wilson Peak Stock--Microgranogabbro;Wilson Peak Stock--Granodiorite

Host or associated Host

Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite

Host or associated	Host
Rock type	Plutonic Rock > Mafic Intrusive Rock > Gabbro
Rock unit name	Mancos Shale;Telluride Conglomerate
Rock description	Mancos Shale;Telluride Conglomerate

Nearby scientific data

(1)	-107.97704, 37.85722	ListMap

Economic information

Geologic structures

Type of structure	Regional
Structure description	Paradox Basin, San Miguel Mtns
Type of structure	Local
Structure description	Wilson Peak Stock

Ore body information

Thickness 1.83M

Thickness	1.83M

Controls for ore emplacement

Generally East-West-Trending Fissures Cutting Intrusive Rocks And Metamorphosed Shale Country Rock

Economic information about the deposit and operations

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

Mining district

District name	Mount Wilson District

Land status

Ownership category	National Forest
Area name	San Juan N. F.

Comments on the workings information

SURFACE PROSPECT PITS; SOME "GOPHERING" ALONG VEINS; 100-FT CROSSCUT WITH PERHAPS 80 FT OF DRIFTING, OTHER MINOR CROSSCUT AND STUB DRIFT.

Comments on development

MINOR "GOPHERING" MAY HAVE TAKEN PLACE IN 1890S, YIELDING A FEW TONS OF HANDCOBBED ORE.

Reference information

Links to other databases

Agency	Database name	Acronym	Record ID	Notes
USGS	Mineral Resources Data System	MRDS	D010896

Bibliographic references

Deposit

BROMFIELD, C.S., AND OTHERS, 1972, MINERAL RESOURCES OF THE WILSON MOUNTAINS PRIMITIVE AREA, COLORADO: USGS BULL. 1353-A, P. 39, 48-49, 66-67.
Deposit

BROMFIELD, C.S., 1967, GEOLOGY OF THE MOUNT WILSON QUADRANGLE, WESTERN SAN JUAN MOUNTAINS, COLORADO: USGS BULL. 1227.

General comments

Subject category	Comment text
Deposit	ALONG NORTH SIDE OF WILSON PEAK STOCK, SEVERAL EAST-WEST- TO ENE-TRENDING FISSURES DIP STEEPLY NORTH AND SOUTH IN GRANODIORITE NEAR CONTACT WITH MICROGRANOGABBRO, RANGE TO 3 INCHES IN WIDTH ALTHOUGH ANASTOMOSING VEINLETS FORM 2- TO 3-FT-WIDE SHEETED ZONE IN PROSPECTS. STRONGEST VEIN IS 3- TO 6-FT-WIDE ALTERED, PYRITIZED FISSURE ZONE THAT MAY BE THE SE TERMINUS OF SYNOPSIS VEIN, CUTTING MICROGRANOGABBRO AND DYING OUT IN METAMORPHOSED MANCOS SHALE.

Subject category

Comment text

Deposit

ALONG NORTH SIDE OF WILSON PEAK STOCK, SEVERAL EAST-WEST- TO ENE-TRENDING FISSURES DIP STEEPLY NORTH AND SOUTH IN GRANODIORITE NEAR CONTACT WITH MICROGRANOGABBRO, RANGE TO 3 INCHES IN WIDTH ALTHOUGH ANASTOMOSING VEINLETS FORM 2- TO 3-FT-WIDE SHEETED ZONE IN PROSPECTS. STRONGEST VEIN IS 3- TO 6-FT-WIDE ALTERED, PYRITIZED FISSURE ZONE THAT MAY BE THE SE TERMINUS OF SYNOPSIS VEIN, CUTTING MICROGRANOGABBRO AND DYING OUT IN METAMORPHOSED MANCOS SHALE.

Reporter information

Type	Date	Name	Affiliation	Comment
Reporter	01-OCT-1983	Schwochow, Stephen D.	Colorado Geological Survey

Beyond USGS

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

Maps centered on this site

Authoritative Colorado resources

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