| Location: | Mineral County, Colorado, United States, North America |
| Lat / long: | 37.8714, -106.93451 |
| dep_id: | 10012364 |
| mrds_id: | D007963 |
| Commodity type: | metallic |
| Major mineral: | Silver |
| Operation type: | Unknown |
| Production size: | No production occurred |
| Development status: | Prospect |
| ore: | Acanthite |
| gangue: | Barite, Hematite, Jarosite, Limonite |
| work_type: | Underground |
| alteration: | Silicification |
| conc_proc: | Following Collapse And Resurgence Of Creede Caldera And Dome, High-Energy Streams Cut Steep Valleys Into Bachelor Mtn. And Other Rhyolites And Deposited Coarse Conglomerates In Valleys Trending South Into Creede Caldera Moat. Bachelor Mtn. Paleovalley Trend Was Controlled By Creede Graben. Later Faulting Of Creede Fm. On Amethyst Fault Hanging Wall Suggests That Lower Part Of Creede Sediments Filling The Paleovalley And In Contact With Amethyst Fault Were Penetrated By The North-To-South-Flowing Hydrothermal Convection Cell Whose Sulfate-Rich Solutions Are Thought To Be Responsible For Ore Deposition In The Amethyst And Related Veins. These Solutions Thus Leaked Out Of The Fracture-Controlled Convection System In The Rhyolite And Into The Overlying Porous Conglomerate. However, The Exact Relations And Ore Controls Are Still Uncertain. |
| ore_ctrl: | Carbonaceous Matter In Sandstone; Porous, Altered, Sandy Matrix In Conglomerate |
| Reporter: | Schwochow, Stephen D. |
| hrock_unit: | Commodore Conglomerate Member Of Creede Formation;Monkemeyer Sandstone Member Of Creede Formation |
| hrock_type: | Sandstone,Conglomerate |
| arock_unit: | Fisher Creek Quartz Latite |
| arock_type: | Quartz Latite |
| Structure: | San Juan Volcanic Field; La Garita, Creede, And Bachelor Calderas, Amethyst Fault, Bachelor Mtn. Paleovalley (Controlled By Creede Graben) |
| tectonic: | Central Cordillera (Southern Rocky Mtns) |
| disc_yr: | 1919 |
| discr: | Fred Monkemeyer |
| References: |
- Deposit:: EMMONS, W.H., AND LARSEN, E.S. 1923, GEOLOGY AND ORE DEPOSITS OF THE CREEDE DISTRICT, COLORADO: USGS BULL. 718, 198 P.
- Deposit:: STEVEN, T.A., AND RATTE, J.C., 1965, GEOLOGY AND STRUCTURAL CONTROL OF ORE DEPOSITION IN THE CREEDE DISTRICT, SAN JUAN MOUNTAINS, COLORADO: USGS PROF. PAPER 487, 90 P.
- Deposit:: LINDEMANN, J.W., AND OTHERS, EDS., 1981, FIELD TRIP NOTES, CREEDE MINING DISTRICT, SAN JUAN VOLCANIC PROVINCE, COLORADO: DENVER REGIONAL EXPLORATION GEOLOGISTS SOC. GUIDEBOOK
|