| Deposit ID | 10014080 |
|---|---|
| MRDS ID | D010702 |
| Record type | Site |
| Current site name | Brooklyn Group |
| Related records | 10191219 |
| Geographic coordinates: | -107.65342, 37.6189 (WGS84) |
|---|---|
| Elevation | 3322 |
| Location accuracy | 2000(meters) |
| Relative position | 13 MILES S 3 E FROM SILVERTON |
Political divisions (FIPS codes)
La Plata(county)
Colorado(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Mountain View Crest(quadrangle 1:24,000 scale)
Silverton(quadrangle 1:100,000 scale)
Durango(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
Animas(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)
Weminuche Wilderness(Wilderness)
Wilderness 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 | 039N | 007W | 29 | Colorado |
| Commodity | Importance |
|---|---|
| Gold | Primary |
| Silver | Primary |
| Copper | Tertiary |
| Lead | Tertiary |
| Materials | Type of material |
|---|---|
| Chalcopyrite | Ore |
| Quartz | Gangue |
| Model code | 85 |
|---|---|
| USGS model code | 22c |
| Deposit model name | Polymetallic veins |
| Mark3 model number | 46 |
| Host or associated | Associated | ||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rock type | Plutonic Rock > Granitoid > Quartz Monzonite | ||||||||||||||||||||||||||||||||
| |||||||||||||||||||||||||||||||||
| Host or associated | Associated | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rock type | Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Rhyolite | ||||||||||||
| |||||||||||||
| Host or associated | Associated | ||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rock type | Plutonic Rock > Granitoid > Granite | ||||||||||||||||||||||||||||||||
| Rock unit name | Eolus Granite;Intrusive Bodies And Related Rocks (Younger And Older Bodies Of Chicago Basin Stock) | ||||||||||||||||||||||||||||||||
| Rock description | Eolus Granite;Intrusive Bodies And Related Rocks (Younger And Older Bodies Of Chicago Basin Stock) | ||||||||||||||||||||||||||||||||
| |||||||||||||||||||||||||||||||||
| Host or associated | Host | ||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rock type | Plutonic Rock > Granitoid > Quartz Monzonite | ||||||||||||||||||||||||||||||||
| |||||||||||||||||||||||||||||||||
| Host or associated | Host |
|---|---|
| Rock type | Metamorphic Rock > Schist |
| Host or associated | Host |
|---|---|
| Rock type | Metamorphic Rock > Gneiss |
| Rock unit name | Irving Formation;Eolus Granite |
| Rock description | Irving Formation;Eolus Granite |
| Host or associated | Host | ||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rock type | Plutonic Rock > Granitoid > Granite | ||||||||||||||||||||||||||||||||
| |||||||||||||||||||||||||||||||||
| (1) | -107.65342, 37.6189 |
|---|
| Type of structure | Regional |
|---|---|
| Structure description | San Juan Uplift, San Juan Basin, San Juan Volcanic Field |
| Type of structure | Local |
| Structure description | Needle Mtns Uplift, Eolus Batholith, Chicago Basin Stock, Trimble Stock |
| Development status | Past Producer |
|---|---|
| Commodity type | Metallic |
| Deposit size | Small |
| Significant | No |
| Year of last production | 1916 |
| District name | Needle Mountain (Tacoma, Florida, Vallecito) District |
|---|
| Ownership category | National Forest |
|---|---|
| Area name | San Juan N. F. |
| Type | Owner-Operator |
|---|---|
| Owner | Costin Brothers, James Gorman, Frank Rivers |
| Home office | Durango, Co. |
| First year | 1916 |
| Type of workings | Underground |
|---|---|
| Length | 79.25M |
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | D010702 | |
| U.S. Bureau of Mines | Minerals Availability System | MAS | 0080670043 |
SCHMITT, L.J., AND RAYMOND, W.H., 1977, GEOLOGY AND MINERAL DEPOSITS OF THE NEEDLE MOUNTAINS DISTRICT, SOUTH-WESTERN COLORADO: USGS BULL. 1434, 40 P.
STEVEN, T.A., AND OTHERS, 1969, MINERAL RESOURCES OF THE SAN JUAN PRIMITIVE AREA, COLORADO: USGS BULL, 1261-F, P. 30-32, 55-67.
CROSS, WHITMAN, AND OTHERS, 1905, DESCRIPTION OF THE NEEDLE MOUNTAINS QUADRANGLE, COLORADO: USGS FOLIO 131.
COLORADO DIV. MINES INF. REPT.
| Subject category | Comment text |
|---|---|
| Deposit | QUARTZ VEIN REPORTEDLY OCCURS IN GRANITE, PROBABLY JUST EAST OF CONTACT WITH IRVING FM METAMORPHICS. VEIN TREND UNKNOWN BU TCOULD BE EXTENSION OF VEIN RELATED TO REGIONAL FRACTURE SYSTEM AND TRENDING APPROX N 75 TO 80 W. |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 01-JUL-1983 | Schwochow, Stephen D. | Colorado Geological Survey |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.
These are landing pages for further research — the state agencies don't currently expose per-mine deep links.