| Deposit ID | 10087849 |
|---|---|
| MRDS ID | D010307 |
| Record type | Site |
| Current site name | Duffields Deposit |
| Alternate or previous names | Hughes Boss Shaft and Leyte Open Pit, Claims: Hughes Boss, MS 14464, Leyte, MS 20742 |
| Related records | 10288326 |
| Geographic coordinates: | -104.90917, 38.73834 (WGS84) |
|---|---|
| Elevation | 2813 |
| Relative position | 7.5 MILES S 32 W FROM COLORADO SPRINGS |
Political divisions (FIPS codes)
El Paso(county)
Colorado(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Mount Big Chief(quadrangle 1:24,000 scale)
Colorado Springs(quadrangle 1:100,000 scale)
Pueblo(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
Fountain(hydrologic unit)
Upper Arkansas(hydrologic accounting unit)
Upper Arkansas(hydrologic subregion)
Arkansas-White-Red(hydrologic region)
Federal lands
Pike and San Isabel National Forests(National Forest)
National Forest FS(Type of land area)
FS(Federal land areas administered by FS)
| Country | State | County |
|---|---|---|
| United States | Colorado | El Paso |
| Meridian | Township | Range | Section | Fraction | State |
|---|---|---|---|---|---|
| 6th Principal | 015S | 067W | 17,20 | SW OF SE (17); NW OF NE (20) | Colorado |
| Commodity | Importance |
|---|---|
| Fluorine-Fluorite Critical | Primary |
| Lead | Secondary |
| Zinc Critical | Secondary |
| Gold | Secondary |
| Silver | Secondary |
| Materials | Type of material |
|---|---|
| Fluorite | Ore |
| Galena | Ore |
| Sphalerite | Ore |
| Barite | Gangue |
| Quartz | Gangue |
| Host or associated | Associated | ||||||
|---|---|---|---|---|---|---|---|
| Rock type | Plutonic Rock > Granitoid > Granite | ||||||
| Rock unit name | Pikes Peak Granite;Aplite Dike | ||||||
| Rock description | Pikes Peak Granite;Aplite Dike | ||||||
| |||||||
| Host or associated | Host |
|---|---|
| Rock type | Plutonic Rock > Granitoid > Granite |
| Rock unit name | Pikes Peak Granite |
| Rock description | Pikes Peak Granite |
| (1) | -104.90917, 38.73834 |
|---|
| Type of structure | Regional |
|---|---|
| Structure description | Front Range Uplift, Pikes Peak Batholith |
| Type of structure | Local |
| Structure description | Mt Rosa Intrusive Center, Ute Pass Fault, Manitou Park Half Graben |
| Thickness | 6.1M |
|---|
| Development status | Past Producer |
|---|---|
| Commodity type | Both |
| Deposit size | Small |
| Significant | No |
| Discovery year | 1901 |
| Discoverer | Thomas Hughes (Hughes Boss Claimant) |
| Year of first production | 1910 |
| Year of last production | 1945 |
| District name | Cheyenne (St. Peters Dome) District |
|---|
| Ownership category | Private |
|---|
| Type | Owner-Operator |
|---|---|
| Owner | Kramer Mines, Inc. |
| Home office | Denver, Co. |
| First year | 1945 |
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | D010307 |
TRIMBLE, D.E., AND MACHETTE, M.N., 1979, GEOLOGIC MAP OF THE COLORADO SPRINGS-CASTLE ROCK AREA, FRONT RANGE URBAN CORRIDOR, COLORADO: USGS MAP I-857-F.
FINLAY, G.I., 1916, DESCRIPTION OF THE COLORADO SPRINGS QUADRANGLE: USGS FOLIO 203.
STEVEN, T.A., 1949, GEOLOGY AND FLUORSPAR DEPOSITS OF THE ST. PETERS DOME DISTRICT, COLORADO: COLORADO SCI. SOC. PROC., V. 15, NO. 6, P. 259-284.
PEARL, R.M., 1965, COLORADO GEM TRAILS AND MINERAL GUIDE: DENVER, SAGE BOOKS, P. 171-180.
OVER, EDWIN, JR., 1929, SOME MINERAL LOCALITIES OF EL PASO COUNTY: ROCKS AND MINERALS, V. 4, NO. 4, P. 106-107.
STEVEN, 1949
| Subject category | Comment text |
|---|---|
| Deposit | COUNTRY ROCK OF PIKES PEAK GRANITE INTRUDED BY SMALL STOCKS AND PLUGS OF FAYALITE GRANITE AND CUT BY N 35 TO 50 W-TRENDING PRECAMBRIAN APLITE DIKES AND BY ARCUATE NE-TRENDING FAULT SUBCONCENTRIC ON SOUTH SIDE OF MT ROSA INTRUSIVE CENTER. VEIN CONSISTS OF FLUORSPAR WITH BRECCIA FILLING OF FINELY GRANULAR QUARTZ AND SOME GALENA AND SPHALERITE (FIRST AND SECOND STAGES OF VEIN DEPOSITION). VEIN LOCALIZED AT BEND IN CROSS-CUTTING FAULT. SOUTH OF BEND, VEIN TRENDS N 20 E, 65 NW, AND NORTH OF BEND TREND IS N 70 W. FARTHER NORTHWARD AT LEYTE OPEN PIT, TREND CHANGES TO NORTHERLY WITH 70 W DIP. HIGHEST GRADE FOUND IN HANGING WALL. |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 01-MAR-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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