| Deposit ID | 10013877 |
|---|---|
| MRDS ID | D010417 |
| Record type | Site |
| Current site name | Sphalerite Mine |
| Geographic coordinates: | -106.61534, 39.03193 (WGS84) |
|---|---|
| Elevation | 3414 |
| Relative position | 6.1 MILES S 27 W FROM INDEPENDENCE PASS |
Political divisions (FIPS codes)
Pitkin(county)
Colorado(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Independence Pass(quadrangle 1:24,000 scale)
Leadville(quadrangle 1:100,000 scale)
Leadville(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
Roaring Fork(hydrologic unit)
Colorado Headwaters(hydrologic accounting unit)
Colorado Headwaters(hydrologic subregion)
Upper Colorado(hydrologic region)
Federal lands
White River National Forest(National Forest)
National Forest FS(Type of land area)
FS(Federal land areas administered by FS)
| Country | State | County |
|---|---|---|
| United States | Colorado | Pitkin |
| Meridian | Township | Range | Section | Fraction | State |
|---|---|---|---|---|---|
| 6th Principal | 012S | 083W | 01 | Colorado |
| Commodity | Importance |
|---|---|
| Zinc Critical | Primary |
| Lead | Primary |
| Copper | Primary |
| Materials | Type of material |
|---|---|
| Chalcopyrite | Ore |
| Galena | Ore |
| Pyrite | Ore |
| Sphalerite | Ore |
| Barite | Gangue |
| Quartz | Gangue |
| Host or associated | Associated | ||||
|---|---|---|---|---|---|
| Rock type | Plutonic Rock > Mafic Intrusive Rock > Diorite | ||||
| |||||
| Host or associated | Associated |
|---|---|
| Rock type | Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Rhyolite |
| Host or associated | Associated |
|---|---|
| Rock type | Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Quartz Latite |
| Rock unit name | Quartz Latite Porphyry (Sawmill Plug);Diorite (Twin Lakes Batholith) |
| Rock description | Quartz Latite Porphyry (Sawmill Plug);Diorite (Twin Lakes Batholith) |
| Host or associated | Host |
|---|---|
| Rock type | Plutonic Rock > Mafic Intrusive Rock > Diorite |
| Host or associated | Host |
|---|---|
| Rock type | Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Quartz Latite |
| Rock unit name | Quartz Latite Porphyry (Sawmill Plug);Diorite (Twin Lakes Batholith) |
| Rock description | Quartz Latite Porphyry (Sawmill Plug);Diorite (Twin Lakes Batholith) |
| (1) | -106.61534, 39.03193 |
|---|
| Type of structure | Regional |
|---|---|
| Structure description | Sawatch Uplift, Central Colorado Trough, Arkansas Valley Graben, Twin Lakes Batholith |
| Type of structure | Local |
| Structure description | Grizzly Peak Cauldron, Mt Elbert Volcanotectonic Depression, Lincoln Gulch Stock, Sawmill Plug |
| Thickness | 0.15M |
|---|
| Development status | Occurrence |
|---|---|
| Commodity type | Metallic |
| Deposit size | Small |
| Significant | No |
| District name | Lincoln (Lincoln Gulch, Ruby) District |
|---|
| Ownership category | Private |
|---|
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | D010417 |
CRUSON, M.G., 1973, GEOLOGY AND ORE DEPOSITS OF THE GRIZZLY PEAK CAULDRON COMPLEX, SAWATCH RANGE, COLORADO: COLORADO SCHOOL OF MINES PH.D. THESIS T-1538.
| Subject category | Comment text |
|---|---|
| Deposit | QUARTZ LATITE DIKES RADIATE FROM POST-BLOCK FAULT ACIDIC PLUG THAT INTRUDES SATELLITE DIORITE STOCK OF TWIN LAKES BATHOLITH ON TRACE OF LINCOLN GULCH FAULT. SAWMILL PLUG IS ONE OF SEVERAL INTRUSIONS ON ARCUATE ZONE EXTENDING FROM PINE-BOWMAN CREEK DIVIDE TO WEST RED MTN. AND MAY POSSIBLY CONNECT WITH RING DIKE AT DEPTH. PLUG COMPOSED OF BANDED FELSITE PORPHYRY CENTER GRADING INTO PYROCLASTIC CORE CUT BY SEVERAL VUGGY RHYOLITE DIKES. CONTACTS OF PLUG AND DIORITE GENERALLY MARKED BY GLASSY PORPHYRY AND BY 50-FT-WIDE BRECCIA ON NE EDGE. ALTERATION CONSISTS OF QUARTZ-SERICITE-PYRITE CORE ENCLOSED IN QUARTZ-SERICITE ZONE ENCLOSED IN ARGILLIC ZONE. PLUG BELIEVED TO POSTDATE CAULDRON DEVELOPMENT AND WAS LOCALIZED ON NNW-TRENDING BLOCK FAULT BECAUSE 1) IT IS MORE ACIDIC THAN EARLIER MAFIC INTRUSIONS; AND 2) LACK OF OFFSET ON LINCOLN GULCH FAULT. |
| 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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