Deposit ID | 10101868 |
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MRDS ID | D010784 |
Record type | Site |
Current site name | Rico-Argentine Mine |
Alternate or previous names | Argentine Mine Encompassing Rico Consolidated, Argentine Shaft, Blackhawk Log Cabin, James G. Blaine Tunnel, Maggie Shaft, Blacksmith Tunnel, And Portion of St. Louis Tunnel |
Geographic coordinates: | -108.00815, 37.70112 (WGS84) |
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Elevation | 2865 |
Relative position | 1.32 MILES N 64 E FROM RICO |
(click for info) |
Country | State | County |
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United States | Colorado | Dolores |
Meridian | Township | Range | Section | Fraction | State |
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New Mexico | 040N | 010W | 30 | Colorado |
Commodity | Importance |
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Silver | Primary |
Lead | Primary |
Zinc | Primary |
Copper | Secondary |
Gold | Secondary |
Sulfur-Pyrite | Secondary |
Cadmium | Secondary |
Manganese | Tertiary |
Bismuth | Tertiary |
Tungsten | Tertiary |
Beryllium | Tertiary |
Materials | Type of material |
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Chalcopyrite | Ore |
Gold | Ore |
Hydrozincite | Ore |
Limonite | Ore |
Pyrite | Ore |
Smithsonite | Ore |
Tennantite | Ore |
Alabandite | Gangue |
Aurichalcite | Gangue |
Barite | Gangue |
Clinozoisite | Gangue |
Fluorite | Gangue |
Garnet | Gangue |
Helvite | Gangue |
Huebnerite | Gangue |
Kaolinite | Gangue |
Magnetite | Gangue |
Pyrrhotite | Gangue |
Quartz | Gangue |
Rhodochrosite | Gangue |
Topaz | Gangue |
Result | CRUDE ORE MINED FROM 1917 TO 1950 CONTAINED 3.88 TO 15.87 OZ/TON AG, 5.7 TO 15.5% PB, 2 TO 22% ZN, 0.09 TO 4% CU, TRACE TO 0.159 OZ/TON AU. PB-ZN MILLING ORE MINED FROM 1939 TO 1950 CONTAINED 3.659 TO 5.818 OZ/TON AG, 6.37 TO 10.23% PB, 11.15 TO 17.2% ZN, 0.18 TO 1.06% CU, TRACE TO 0.015 OZ/TON AU. MUILENBURG'S (1919) ANALYSES OF MANGANIFEROUS LIMONITE AND OXIDES: RICO CONSOLIDATED DUMP, 25.25% MN, 44.40% SIO2, 3.27% FE, 0.602% S, 0.050% P |
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Result | RICO ARGENTINE MINE, 31.18% MN, 23.60% SIO2, 2.34% FE, 0.082% S, 0.027% P. |
Model code | 72 |
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USGS model code | 19a |
Deposit model name | Polymetallic replacement |
Mark3 model number | 47 |
Host or associated | Associated | ||||||||
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Rock type | Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Latite | ||||||||
Rock unit name | Hornblende Latite Porphyry | ||||||||
Rock description | Hornblende Latite Porphyry | ||||||||
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Host or associated | Host |
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Rock type | Sedimentary Rock > Clastic Sedimentary Rock > Shale |
Host or associated | Host |
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Rock type | Sedimentary Rock > Clastic Sedimentary Rock > Sandstone |
Host or associated | Host |
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Rock type | Sedimentary Rock > Carbonate > Limestone |
Rock unit name | Hermosa Formation |
Rock description | Hermosa Formation |
Host or associated | Host |
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Rock type | Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Latite |
(1) | -108.00815, 37.70112 |
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Type | Description | Terms |
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Regional | San Juan Uplift, Paradox Basin | |
Local | Rico Dome, Blackhawk Fault, Hidden Fault, Allegheny Fissure, Last Chance Fault, Honduras Fault |
General form | TABULAR, LINEAR, IRREGULAR |
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Thickness | 12.19M |
Width | 60.96M |
Length | 198.12M |
Development status | Past Producer |
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Commodity type | Metallic |
Deposit size | Small |
Significant | No |
Discovery year | 1877 |
Discoverer | John Glasgow (Blackhawk Lode) |
Discovery method | Ore-Mineral In Place |
Year of first production | 1879 |
Year of last production | 1976 |
District name | Pioneer (Rico) District |
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Ownership category | National Forest |
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Area name | San Juan N. F. |
Type | Owner-Operator |
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Owner | Anaconda Copper Co. |
Home office | Rico, Co. |
First year | 1980 |
Agency | Database name | Acronym | Record ID | Notes |
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USGS | Mineral Resources Data System | MRDS | D010784 | |
U.S. Bureau of Mines | Minerals Availability System | MAS | 0080330029 | |
U.S. Bureau of Mines | Minerals Availability System | MAS | 0080330040 | |
U.S. Bureau of Mines | Minerals Availability System | MAS | 0080330042 | |
U.S. Bureau of Mines | Minerals Availability System | MAS | 0080330001 | |
U.S. Bureau of Mines | Minerals Availability System | MAS | 0080330186 | |
U.S. Bureau of Mines | Minerals Availability System | MAS | 0080330169 |
MCKNIGHT, E.T., 1974, GEOLOGY AND ORE DEPOSITS OF THE RICO DISTRICT, COLORADO: USGS PROF. PAPER 723, P. 81-89.
PRATT, W.P., AND OTHERS, 1969, GEOLOGIC MAP OF THE RICO QUADRANGLE, DOLORES AND MONTEZUMA COUNTIES, COLORADO: USGS MAP GQ-797.
RANSOME, F.L., 1901, THE ORE DEPOSITS OF THE RICO MOUNTAINS, COLORADO: USGS 22D ANN, REPT., PT. 2, P. 368-372, 374.
CROSS, WHITMAN, AND RANSOME, F.L., 1905, DESCRIPTION OF THE RICO QUADRANGLE: USGS FOLIO 130.
MUILENBURG, G.A., 1919, MANGANESE DEPOSITS OF COLORADO: CGS BULL. 15, P. 48-49.
COLORADO DIV. MINES INF. REPTS. AND ANNUAL OPERATOR REPTS.
COLORADO DIV. MINES ANNUAL OPERATOR REPTS.
Subject category | Comment text |
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Deposit | Discovery Year: LATE 1870S |
Deposit | LIMESTONE, SANDSTONE, AND SHALE OF LOWER, MIDDLE, AND UPPER HERMOSA FM ARE INTRUDED BY HORNBLENDE LATITE PORPHYRY SILLS AND DIKES AND ARE CUT BY GENERALLY NW-TRENDING BLACKHAWK FAULT (DOWNTHROWN ON NE) AND HIDDEN FAULT, AND BY GENERALLY EAST-WEST-TRENDING HONDURAS FAULT (VERTICAL TO STEEPLY SOUTH DIPPING). MIDDLE AND UPPER HERMOSA STRATA DIP EAST AND NE IN BLACKHAWK HANGING WALL; LOWER AND MIDDLE HERMOSA STRATA DIP SEIN BLACKHAWK FOOTWALL. RANSOME (1901) DESCRIBED UPPER BLACKHAWK DEPOSITS AS SIMPLE FISSURE VEINS STRIKING N 70 W, 60 NE, & CONTAINING OXIDIZED AG ORE DOWN TO ABOUT M LEVEL. REPLACEMENT SULFIDES WORKED FROM LIMESTONES DIPPING NE AWAY FROM VEIN. SULFIDE BODIES UP TO 15 FT THICK EXTEND IRREGULARLY INTO LIMESTONE 50 TO 60 FT FROM VEIN AND CONSIST MOSTLY OF PYRITE CONTAINING IRREGULAR BODIES OF GALENA/SPHALERITE/CHALCOPYRITE/PYRITE IN FLUORITE GANGUE; ON PERIPHERY, ORE PASSES INTO LOWER GRADE MASSIVE GALENA AND SPHALERITE WITH SOME CHALCOPYRITE AND LITTLE GANGUE. NEAR |
Deposit | BLACKHAWK FAULT, REPLACEMENTS STEEPEN AND APPEAR TO TURN UP INTO FISSURE. UPPER PORTIONS OF PYRITE BODIES OFTEN OXIDIZED AND CAVERNOUS, LEAVING RUSTY QUARTZ NETWORKS. MCKNIGHT (1974) IDENTIFIED 12 LIMESTONE BEDS (A THROUGH L) IN MIDDLE HERMOSA MINERALIZED LARGELY IN BLACKHAWK FAULT HANGING WALL. ORE BODIES LOCALIZED BY ZONES OF CROSS FRACTURES CUTTING LIMESTONES; BY BEDDING PLANE FAULTS; BY INTERSECTION OF TWO FAULTS; BY ALLEGHENY FISSURE, PARALLEL TO BLACKHAWK BUT WITH REVERSE MOVEMENT, DIPPING SW AND DOWNTHROWN ON NE, JOINING BLACKHAWK FAULT ABOVE BLAINE TUNNEL; BY HONDURAS WNW-TRENDING REVERSE FAULT NEAR ITS INTERSECTION WITH BLACKHAWK FAULT; AND BY SHATTERED ZONES ADJACENT TO LATITE PORPHYRY DIKES. ON BLAINE LEVEL, SMALL ORE BODIES IN BLACKHAWK FOOT WALL FOUND IN CLASTICS COMPLEXLY FAULTED IN ANGLE FORMED BY INTERSECTION OF BLACKHAWK AND LAST CHANCE FAULTS. ORE CAN REPLACE ALL OR PART OF LIMESTONE BED THICKNESS. ON 200 LEVEL, H BED MINERALIZATION ATTAINED 40 FT, COMPLETE BED |
Deposit | THICKNESS. I-J BED WAS WIDE BLANKET REPLACEMENT BORDERING DIRECTLY ON BLACKHAWK FAULT AND EXTENDING, AS SHOWN BY STOPES, UP TO 650 FT LONG DIAGONALLY DOWN DIP ALONG BEDDING AND UP TO 200 FT WIDE. |
Type | Date | Name | Affiliation | Comment |
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Reporter | 01-SEP-1983 | Schwochow, Stephen D. | Colorado Geological Survey |