| Deposit ID | 10014174 |
|---|---|
| MRDS ID | D010832 |
| Record type | Site |
| Current site name | Little Kate Mine |
| Alternate or previous names | Patented Claim: Little Kate, Ms 8964 |
| Related records | 10191133 |
| Geographic coordinates: | -108.06065, 37.43223 (WGS84) |
|---|---|
| Elevation | 3280 |
| Relative position | 14.4 MILES N 45 W FROM DURANGO |
Political divisions (FIPS codes)
La Plata(county)
Colorado(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
La Plata(quadrangle 1:24,000 scale)
Cortez(quadrangle 1:100,000 scale)
Cortez(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
Middle San Juan(hydrologic unit)
Upper San Juan(hydrologic accounting unit)
San Juan(hydrologic subregion)
Upper Colorado(hydrologic region)
Federal lands
San Juan National Forest(National Forest)
National Forest FS(Type of land area)
FS(Federal land areas administered by FS)
| Country | State | County |
|---|---|---|
| United States | Colorado | La Plata |
| Meridian | Township | Range | Section | Fraction | State |
|---|---|---|---|---|---|
| New Mexico | 037N | 011W | 27 | SE | Colorado |
| Commodity | Importance |
|---|---|
| Gold | Primary |
| Silver | Primary |
| Copper | Tertiary |
| Materials | Type of material |
|---|---|
| Chalcopyrite | Ore |
| Calcite | Gangue |
| Epidote | Gangue |
| Quartz | Gangue |
| Result | DUMPS, OUTCROPS, AND UNDERGROUND EXPOSURES YIELDED ASSAYS OF 0.034 TO 0.38 OZ/TON AU. MAIN BODY OF BRECCIA CONTAINS 0.02 TO 0.11 OZ/TON AU AND AVERAGES 0.04 TO 0.06 OZ/TON AU. ECKEL AND OTHERS' (1949) ANALYSES OF THREE BRECCIA SAMPLES SHOWED 0.01 TO 0.04 OZ/TON AU AND TRACE TO 0.05 OZ/TON AG. |
|---|
| Model code | 85 |
|---|---|
| USGS model code | 22c |
| Deposit model name | Polymetallic veins |
| Mark3 model number | 46 |
| Host or associated | Associated | ||||
|---|---|---|---|---|---|
| Rock type | Plutonic Rock > Mafic Intrusive Rock > Diorite | ||||
| Rock unit name | Porphyritic Rocks--Diorite-Monzonite Porphyry;Nonporphyritic Rocks--Diorite | ||||
| Rock description | Porphyritic Rocks--Diorite-Monzonite Porphyry;Nonporphyritic Rocks--Diorite | ||||
| |||||
| Host or associated | Host |
|---|---|
| Rock type | Plutonic Rock > Mafic Intrusive Rock > Diorite |
| Rock unit name | Cutler Formation |
| Rock description | Cutler Formation |
| (1) | -108.06065, 37.43223 |
|---|
| Type of structure | Regional |
|---|---|
| Structure description | San Juan Uplift, Four Corners Platform |
| Type of structure | Local |
| Structure description | La Plata Dome, Diorite Peak Stock |
| General form | LENTICULAR |
|---|
| Development status | Past Producer |
|---|---|
| Commodity type | Metallic |
| Deposit size | Small |
| Significant | No |
| Discovery year | 1892 |
| Discoverer | Allen Gold Mining Co. (Claimant) |
| Year of first production | 1895 |
| Year of last production | 1900 |
| District name | California (La Plata) District |
|---|
| Ownership category | National Forest |
|---|---|
| Area name | San Juan N. F. |
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | D010832 | |
| U.S. Bureau of Mines | Minerals Availability System | MAS | 0080670188 |
ECKEL, E.B., AND OTHERS, 1949, GEOLOGY AND ORE DEPOSITS OF THE LA PLATA DISTRICT, COLORADO: USGS PROF. PAPER 219, P. 67-68, 136-138, 171.
MCCAUSLAND, ROSS, 1936, TOMAHAWK-BLACK DIAMOND MINES, DURANGO, COLORADO: UNPUB. ENG. REPT., 22 P.
BECKER, C.M., 1934, REPORT ON THE TOMAHAWK AND BLACK DIAMOND PROPERTIES, SAN JUAN DISTRICT, LA PLATA COUNTY, COLORADO: UNPUB. ENG. REPT., 5 P.
BLM MINERAL SURVEY MS 8964
| Subject category | Comment text |
|---|---|
| Deposit | Discovery Year: EARLY 1890S |
| Deposit | COUNTRY ROCK CONSISTS OF METAMORPHOSED CUTLER FM RED BEDS (QUARTZITE AND HORNFELS) INTRUDED BY DIORITE-MONZONITE PORPHYRY SILLS AND DIORITE STOCK. MINE INTERSECTS WESTWARD EXTENSION OF EAST-WEST-TRENDING CLYDESDALE AND TOMAHAWK VEINS IN PORPHYRY AND DEVELOPED NE-TRENDING VEIN THAT INTERSECTS TOMAHAWK VEIN AT NW END OF PROMINENT NW-TRENDING BODY OF BRECCIA ALONG SW SIDE OF DIORITE STOCK. DEPOSIT IS UNIQUE IN DISTRICT IN THAT VEIN IS BELT OF NARROW, PYRITE-BEARING QUARTZ STRINGERS CUTTING BRECCIA AND TRENDING GENERALLY N 60 E, 70 TO 90 NW. MOST ORE IS OXIDIZED TO LIMONITE, BUT UNOXIDIZED PYRITE ORE OCCURRED WITHIN 10 TO 12 FT OF SURFACE. |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 01-AUG-1983 | Schwochow, Stephen D. | Colorado Geological Survey |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.
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