Wellington Group

Dolores County, Colorado, United States

ZincSilverLeadGoldCopperQuartzSulfur-PyriteManganese

⌖ Show on map USGS source ↗

Commodities

PrimaryZinc, Silver, Lead

SecondaryGold, Copper, Quartz, Sulfur-Pyrite

TertiaryManganese

Commodity typeB

Deposit

Model72: Polymetallic replacement

Deposit sizeS

Ore controlChemical Favorability Of Limestone For Replacement Near Major Trunk Fault And Parallel Subsidiary Faults In Its Hanging Wall

Materials

Ore mineralsAnglesite, Chalcopyrite, Limonite, Pyrite, Smithsonite, Sphalerite

GangueAlabandite, Diaspore, Fluorite, Kaolinite, Siderite, Topaz

Other materialsQuartz

Geology

Host rockSandstone,Limestone · Hermosa Formation

Associated rockLatite,Granite · Hornblende Latite Porphyry;Alaskite Porphyry

StructureSan Juan Uplift, Paradox Basin, Rico Dome, Blackhawk Fault, Princeton Fault

Tectonic settingCentral Cordillera (Southern Rocky Mtns)

AlterationOxidation Of Sulfide Ore; Oxidation Of Pyrite To Limonite

Economic & production

Development statusPast Producer

First production1887

Last production1966

Discovery year1885

Identification

Deposit ID10014145

MRDS IDD010793

Alternate namesLittle Casper, MS 19665, Mountain Boy, Gipsy, MS 2499, Leap Year, MS 6105, Mountain Springs, MS 6129, Ethlena, MS 6136, C.S.H.H., MS 6286, Black Night, MS 8135, Iron Rod, MS 8140, Excelsior, MS 8141, Excelsior No. 2, MS 8141, Lottie, MS 8223, Worlds Fair, MS 15233, Cerebus, MS 19665, X-Ray, MS 19665, Goliath, MS 19665, Unpatented Claims: Baby Ruth, Acme, Empire, Slide, Telescope, Triangle, Fair View, Iron Claw, Hornet, Hidden Treasure, Mountain Spring-Wellington Group, Patented Claims: Harvey, MS 914, Uncle Ned, MS 915, Undine, MS 1090, Tip Top, MS 1248, Robber State, MS 1464, Maid of Australia, MS 1587, General Logan, MS 2476, General Sherman, MS 2477, General O.O. Howard, MS 2478, General Sheridan, MS 2479

RegionNA

Data scoreB

Coordinates37.71279, -108.02232

References

MCKNIGHT, E.T., 1974, GEOLOGY AND ORE DEPOSITS OF THE RICO DISTRICT, COLORADO: USGS PROF. PAPER 723, P. 78-79.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. 387-388.CROSS, WHITMAN, AND RANSOME, F.L., 1905, DESCRIPTION OF THE RICO QUADRANGLE: USGS FOLIO 130.COLORADO DIV. MINES INF. REPTS. AND ANNUAL OPERATOR REPTS.BLM MINERAL SURVEYS MS 914, 915, 1090, 1248, 1464, 1587, 2476, 2477, 2478, 2479, 6129, 6105, 6136, 6286, 8135, 8140, 8141, 8223, 15233, 19665COLORADO DIV. MINES ANNUAL OPERATOR REPTS.