Treasure Hill Spar Claim

Occurrence in Hinsdale county in Colorado, United States with commodities Silver, Gold, Copper, Lead, Antimony

Sections on this page

Identification information
Geographic coordinates
Site location context
Geographic areas
Public Land Survey System information
Commodities
Materials information
Host and associated rocks
Nearby scientific data
Geologic structures
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	10094703
MRDS ID	D011622
Record type	Site
Current site name	Treasure Hill Spar Claim
Alternate or previous names	Patented Claims: Treasure Hill Spar, Ms 1085

Geographic coordinates

Geographic coordinates:	-107.39507, 38.03694 (WGS84)
Elevation	3335
Relative position	4.3 MILES N 84 W FROM LAKE CITY

Site location context

Political divisions (FIPS codes)

Hinsdale(county)

Colorado(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Uncompahgre Peak(quadrangle 1:24,000 scale)

Montrose(quadrangle 1:100,000 scale)

Montrose(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper Gunnison(hydrologic unit)

Gunnison(hydrologic accounting unit)

Gunnison(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)

Geographic areas

Country	State	County
United States	Colorado	Hinsdale

Public Land Survey System information

Meridian	Township	Range	Section	Fraction	State
New Mexico	044N	005W	25,26		Colorado

Comments on the location information

CLAIM LIES ABOVE UNNAMED TRIBUTARY OF NELLIE CREEK ABOUT ONE MILE ABOVE CONFLUENCE WITH HENSON CREEK. ELEV AND LAT-LONG GIVEN ARE FOR OPEN CUT SHOWN ON STEVEN AND OTHERS (1977) MAP. ; INFO FROM LAND.ST :1977

Commodities

Commodity	Importance
Silver	Primary
Gold	Primary
Copper	Primary
Lead	Secondary
Antimony Critical	Tertiary

Materials information

Materials	Type of material
Galena	Ore
Calcite	Gangue
Quartz	Gangue
Sericite	Gangue

Analytical data

Result	STEVEN AND OTHERS' (1977) SEMIQUANTITATIVE SPECTROGRAPHIC ANALYSES. SEVEN CHIP AND SPECIMEN SAMPLES FROM VEIN AND TRENCH FLOOR CONTAINED 0.2 TO 5% AL, GT 4% CA, 0.2 TO 1.0% FE, 0.1 TO 0.2% MG, 0.2 TO 0.4% MN, 0.003 TO 0.1% TI, 30 TO 60 PPM CR, LT 20 TO 40 PPM CU, LT 100 TO 100 PPM PB, LT 70 PPM ZR, TRACE AU, 0.01 OZ/TON AG. GRAB SAMPLE FROM PIT SOUTH OF CLAIM CONTAINED GT 7% AL, 0.5% CA, 4% FE, 0.8% MG, 0.2% MN, 0.2% TI, 1000 PPM BA, 200 PPM CR, 80 PPM CU, 100 PPM PB, 70 PPM ZR, CHIP SAMPLE FROM VEIN IN PIT WEST OF CLAIM CONTAINED GT 7% AL, 0.3% CA, 4% FE, 0.8% MG, 0.2% MN, 0.2% TI, 100 PPM B, 1000 PPM BA, 200 PPM CR, 3000 PPM CU, 1500 PPM PB, 0.07% SB, 70 PPM ZR, 0.9 OZ/TON AG (FIRE ASSAY), 0.20% CU AND 0.04% PB (ATOMIC ABSORPTION).

Result

STEVEN AND OTHERS' (1977) SEMIQUANTITATIVE SPECTROGRAPHIC ANALYSES. SEVEN CHIP AND SPECIMEN SAMPLES FROM VEIN AND TRENCH FLOOR CONTAINED 0.2 TO 5% AL, GT 4% CA, 0.2 TO 1.0% FE, 0.1 TO 0.2% MG, 0.2 TO 0.4% MN, 0.003 TO 0.1% TI, 30 TO 60 PPM CR, LT 20 TO 40 PPM CU, LT 100 TO 100 PPM PB, LT 70 PPM ZR, TRACE AU, 0.01 OZ/TON AG. GRAB SAMPLE FROM PIT SOUTH OF CLAIM CONTAINED GT 7% AL, 0.5% CA, 4% FE, 0.8% MG, 0.2% MN, 0.2% TI, 1000 PPM BA, 200 PPM CR, 80 PPM CU, 100 PPM PB, 70 PPM ZR, CHIP SAMPLE FROM VEIN IN PIT WEST OF CLAIM CONTAINED GT 7% AL, 0.3% CA, 4% FE, 0.8% MG, 0.2% MN, 0.2% TI, 100 PPM B, 1000 PPM BA, 200 PPM CR, 3000 PPM CU, 1500 PPM PB, 0.07% SB, 70 PPM ZR, 0.9 OZ/TON AG (FIRE ASSAY), 0.20% CU AND 0.04% PB (ATOMIC ABSORPTION).

Host and associated rocks

Host or associated

Associated

Rock type

Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Rhyolite

Rock unit name

Eureka Member Of Sapinero Mesa Tuff

Rock description

Eureka Member Of Sapinero Mesa Tuff

Stratigraphic age (youngest)	Oligocene
Stratigraphic age (youngest)	Oligocene
Stratigraphic age (youngest)	Oligocene
Stratigraphic age (youngest)	Oligocene

Host or associated	Host
Rock type	Volcanic Rock (Aphanitic) > Pyroclastic Rock > Volcanic Breccia (Agglomerate)
Rock unit name	Picayune Megabreccia Member Of Sapinero Mesa Tuff
Rock description	Picayune Megabreccia Member Of Sapinero Mesa Tuff

Nearby scientific data

(1)	-107.39507, 38.03694	ListMap

Economic information

Geologic structures

Type of structure	Regional
Structure description	San Juan Volcanic Field, San Juan Depression
Type of structure	Local
Structure description	San Juan-Uncompahgre Calderas, Lake City Caldera, Eureka Graben

Controls for ore emplacement

Ne-Trending Fault/Fracture Transverse To Lake City Caldera Ring Fault But Subparallel To Trend Of Pre-Lake City Caldera Eureka Graben.

Economic information about the deposit and operations

Development status	Occurrence
Commodity type	Metallic
Deposit size	Small
Significant	No

Mining district

District name	Galena (Henson Creek) District

Land status

Ownership category	Private

Comments on the workings information

EXPLORATORY TRENCH AND OPEN CUTS.

Reference information

Links to other databases

Agency	Database name	Acronym	Record ID	Notes
USGS	Mineral Resources Data System	MRDS	D011622

Bibliographic references

Deposit

IRVING, J.D., AND BANCROFT, HOWLAND, 1911, GEOLOGY AND ORE DEPOSITS NEAR LAKE CITY, COLORADO: USGS BULL, 478.
Deposit

SLACK, J.F., 1980, MULTISTAGE VEIN ORES OF THE LAKE CITY DISTRICT, WESTERN SAN MOUNTAINS, COLORADO: ECON. GEOLOGY, V. 75, NO. 7, P. 963-991.
Deposit

LIPMAN, P.W., 1976, GEOLOGIC MAP OF THE LAKE CITY CALDERA AREA, WESTERN SAN JUAN MOUNTAINS, SOUTHWESTERN COLORADO: USGS MAP I-962.
Deposit

STEVEN, T.A., AND OTHERS, 1977, MINERAL RESOURCES OF STUDY AREAS CONTIGUOUS TO THE UNCOMPAHGRE PRIMITIVE AREA, SAN JUAN MOUNTAINS, SOUTHWESTERN COLORADO: USGS BULL. 1391-C, P. 84-85, 110-111.
Deposit

BLM MINERAL SURVEY MS 1085

General comments

Subject category	Comment text
Deposit	BETWEEN RIMS OF UNCOMPAHGRE AND LAKE CITY CALDERAS, DEPOSIT LIES IN INFILL SEQUENCE COMPOSED OF EUREKA MEMBER RHYOLITE OVERLYING AND PROBABLY INTERBEDDED WITH CALDERA COLLAPSE BRECCIA, CONSISTING OF CHAOTIC MASSES OF PRECALDERA INTERMEDIATE-COMPOSITION ROCKS INTERPRETED TO BE REULT OF SLUMPING FROM OVERSTEEPENED CALDERA WALLS DURING INITIAL SUBSIDENCE. DEPOSIT APPEARS TO BE TRANSVERSE VEIN LOCATED IN SLACK'S (1980) QUARTZ/BASE-METAL ASSEMBLAGE, OUTER CARBONATE-TETRAHEDRITE ZONE AND IS CHARACTERIZED BY MASSIVE ORE-STAGE CARBONATE--CALCITE IN CONTRAST TO RHODOCHROSITE COMMON AT MINES IN INNER ZONES.

Subject category

Comment text

Deposit

BETWEEN RIMS OF UNCOMPAHGRE AND LAKE CITY CALDERAS, DEPOSIT LIES IN INFILL SEQUENCE COMPOSED OF EUREKA MEMBER RHYOLITE OVERLYING AND PROBABLY INTERBEDDED WITH CALDERA COLLAPSE BRECCIA, CONSISTING OF CHAOTIC MASSES OF PRECALDERA INTERMEDIATE-COMPOSITION ROCKS INTERPRETED TO BE REULT OF SLUMPING FROM OVERSTEEPENED CALDERA WALLS DURING INITIAL SUBSIDENCE. DEPOSIT APPEARS TO BE TRANSVERSE VEIN LOCATED IN SLACK'S (1980) QUARTZ/BASE-METAL ASSEMBLAGE, OUTER CARBONATE-TETRAHEDRITE ZONE AND IS CHARACTERIZED BY MASSIVE ORE-STAGE CARBONATE--CALCITE IN CONTRAST TO RHODOCHROSITE COMMON AT MINES IN INNER ZONES.

Reporter information

Type	Date	Name	Affiliation	Comment
Reporter	01-APR-1984	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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