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Mammoth Revenue Mine (Mammoth Mine), Platoro District (Ute District), Conejos Co., Colorado, USAi
Regional Level Types
Mammoth Revenue Mine (Mammoth Mine)Mine
Platoro District (Ute District)Mining District
Conejos Co.County
ColoradoState
USACountry

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Key
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Latitude & Longitude (WGS84): 37° 20' 48'' North , 106° 32' 4'' West
Latitude & Longitude (decimal): 37.34694,-106.53445
GeoHash:G#: 9wshrwzcx
Locality type:Mine
Köppen climate type:Dfc : Subarctic climate
Nearest Settlements:
PlacePopulationDistance
Gerrard278 (2011)37.1km
South Fork362 (2017)37.1km
Capulin200 (2011)38.0km
Alpine174 (2011)38.3km
Del Norte1,604 (2017)40.2km


Ore deposit consists of quartz – pyrite veins, fracture fillings, in north-northwest trending faults. Ore shoots within the vein contain gold tellurides and silver sulphosalts. Wallrock alteration associated with mineralization is relatively minor. The geological literature of the Platoro region mostly concerns the volcanism and caldera development. Adjunct to this, brief reviews of the ore deposits are given by Lipman and Steven (1970) and Lipman (1975).

Regions containing this locality

North America PlatePlate
Rocky Mountains, North AmericaMountain Range

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


20 valid minerals.

Detailed Mineral List:

Acanthite
Formula: Ag2S
'Andorite'
Formula: AgPbSb3S6
Anhydrite
Formula: CaSO4
Arsenopyrite
Formula: FeAsS
Baryte
Formula: BaSO4
Calcite
Formula: CaCO3
Chalcocite
Formula: Cu2S
Digenite
Formula: Cu9S5
'Electrum'
Formula: (Au, Ag)
Gold
Formula: Au
Marcasite
Formula: FeS2
Miargyrite
Formula: AgSbS2
Molybdenite
Formula: MoS2
Petzite
Formula: Ag3AuTe2
Polybasite
Formula: [(Ag,Cu)6(Sb,As)2S7][Ag9CuS4]
Proustite
Formula: Ag3AsS3
Pyrargyrite
Formula: Ag3SbS3
Pyrrhotite
Formula: Fe7S8
Quartz
Formula: SiO2
Quartz var: Chalcedony
Formula: SiO2
Silver
Formula: Ag
Sphalerite
Formula: ZnS
Zinkenite
Formula: Pb9Sb22S42

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
'Electrum'1.AA.05(Au, Ag)
Gold1.AA.05Au
Silver1.AA.05Ag
Group 2 - Sulphides and Sulfosalts
Acanthite2.BA.35Ag2S
Arsenopyrite2.EB.20FeAsS
Chalcocite2.BA.05Cu2S
Digenite2.BA.10Cu9S5
Marcasite2.EB.10aFeS2
Miargyrite2.HA.10AgSbS2
Molybdenite2.EA.30MoS2
Petzite2.BA.75Ag3AuTe2
Polybasite2.GB.15[(Ag,Cu)6(Sb,As)2S7][Ag9CuS4]
Proustite2.GA.05Ag3AsS3
Pyrargyrite2.GA.05Ag3SbS3
Pyrrhotite2.CC.10Fe7S8
Sphalerite2.CB.05aZnS
Zinkenite2.JB.35aPb9Sb22S42
Group 4 - Oxides and Hydroxides
Quartz4.DA.05SiO2
var: Chalcedony4.DA.05SiO2
Group 5 - Nitrates and Carbonates
Calcite5.AB.05CaCO3
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
Anhydrite7.AD.30CaSO4
Baryte7.AD.35BaSO4
Unclassified Minerals, Rocks, etc.
'Andorite'-AgPbSb3S6

List of minerals arranged by Dana 8th Edition classification

Group 1 - NATIVE ELEMENTS AND ALLOYS
Metals, other than the Platinum Group
Gold1.1.1.1Au
Silver1.1.1.2Ag
Group 2 - SULFIDES
AmBnXp, with (m+n):p = 2:1
Acanthite2.4.1.1Ag2S
Chalcocite2.4.7.1Cu2S
Digenite2.4.7.3Cu9S5
Petzite2.4.3.3Ag3AuTe2
AmXp, with m:p = 1:1
Pyrrhotite2.8.10.1Fe7S8
Sphalerite2.8.2.1ZnS
AmBnXp, with (m+n):p = 1:2
Arsenopyrite2.12.4.1FeAsS
Marcasite2.12.2.1FeS2
Molybdenite2.12.10.1MoS2
Group 3 - SULFOSALTS
ø > 4
Polybasite3.1.7.2[(Ag,Cu)6(Sb,As)2S7][Ag9CuS4]
ø = 3
Proustite3.4.1.1Ag3AsS3
Pyrargyrite3.4.1.2Ag3SbS3
ø = 2
Miargyrite3.7.3.2AgSbS2
1 < ø < 2
Zinkenite3.8.1.1Pb9Sb22S42
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Calcite14.1.1.1CaCO3
Group 28 - ANHYDROUS ACID AND NORMAL SULFATES
AXO4
Anhydrite28.3.2.1CaSO4
Baryte28.3.1.1BaSO4
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Unclassified Minerals, Mixtures, etc.
'Andorite'-AgPbSb3S6
'Electrum'-(Au, Ag)
Quartz
var: Chalcedony
-SiO2

List of minerals for each chemical element

CCarbon
C CalciteCaCO3
OOxygen
O QuartzSiO2
O AnhydriteCaSO4
O Quartz (var: Chalcedony)SiO2
O BaryteBaSO4
O CalciteCaCO3
SiSilicon
Si QuartzSiO2
Si Quartz (var: Chalcedony)SiO2
SSulfur
S MarcasiteFeS2
S ProustiteAg3AsS3
S PyrargyriteAg3SbS3
S PyrrhotiteFe7S8
S MolybdeniteMoS2
S SphaleriteZnS
S Polybasite[(Ag,Cu)6(Sb,As)2S7][Ag9CuS4]
S ZinkenitePb9Sb22S42
S ChalcociteCu2S
S AnhydriteCaSO4
S BaryteBaSO4
S AndoriteAgPbSb3S6
S DigeniteCu9S5
S AcanthiteAg2S
S MiargyriteAgSbS2
S ArsenopyriteFeAsS
CaCalcium
Ca AnhydriteCaSO4
Ca CalciteCaCO3
FeIron
Fe MarcasiteFeS2
Fe PyrrhotiteFe7S8
Fe ArsenopyriteFeAsS
CuCopper
Cu Polybasite[(Ag,Cu)6(Sb,As)2S7][Ag9CuS4]
Cu ChalcociteCu2S
Cu DigeniteCu9S5
ZnZinc
Zn SphaleriteZnS
AsArsenic
As ProustiteAg3AsS3
As Polybasite[(Ag,Cu)6(Sb,As)2S7][Ag9CuS4]
As ArsenopyriteFeAsS
MoMolybdenum
Mo MolybdeniteMoS2
AgSilver
Ag SilverAg
Ag ProustiteAg3AsS3
Ag PyrargyriteAg3SbS3
Ag Polybasite[(Ag,Cu)6(Sb,As)2S7][Ag9CuS4]
Ag Electrum(Au, Ag)
Ag AndoriteAgPbSb3S6
Ag AcanthiteAg2S
Ag MiargyriteAgSbS2
Ag PetziteAg3AuTe2
SbAntimony
Sb PyrargyriteAg3SbS3
Sb Polybasite[(Ag,Cu)6(Sb,As)2S7][Ag9CuS4]
Sb ZinkenitePb9Sb22S42
Sb AndoriteAgPbSb3S6
Sb MiargyriteAgSbS2
TeTellurium
Te PetziteAg3AuTe2
BaBarium
Ba BaryteBaSO4
AuGold
Au GoldAu
Au Electrum(Au, Ag)
Au PetziteAg3AuTe2
PbLead
Pb ZinkenitePb9Sb22S42
Pb AndoriteAgPbSb3S6

Regional Geology

This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.

Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org

Miocene - Eocene
5.333 - 56 Ma



ID: 3190650
Cenozoic volcanic rocks

Age: Cenozoic (5.333 - 56 Ma)

Stratigraphic Name: San Juan Mountains

Comments: Southern Rocky Mountains

Lithology: Intermediate-felsic volcanic rocks

Reference: Chorlton, L.B. Generalized geology of the world: bedrock domains and major faults in GIS format: a small-scale world geology map with an extended geological attribute database. doi: 10.4095/223767. Geological Survey of Canada, Open File 5529. [154]

Oligocene
23.03 - 33.9 Ma



ID: 2780687
Ash-flow tuff of main volcanic sequence

Age: Oligocene (23.03 - 33.9 Ma)

Description: Includes many named units

Comments: Original map source: Green, G.N., 1992, The Digital Geologic Map of Colorado in ARC/INFO Format: U.S. Geological Survey Open-File Report 92-0507, 9 p., scale 1:500,000.

Lithology: Major:{volcanic}

Reference: Horton, J.D., C.A. San Juan, and D.B. Stoeser. The State Geologic Map Compilation (SGMC) geodatabase of the conterminous United States. doi: 10.3133/ds1052. U.S. Geological Survey Data Series 1052. [133]

Data and map coding provided by Macrostrat.org, used under Creative Commons Attribution 4.0 License

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
LIPMAN, P.W., AND STEVEN, T.A., 1970, RECONNAISSANCE GEOLOGY AND ECONOMIC SIGNIFICANCE OF THE PLATORO CALDERA, SOUTHEASTERN SAN JUAN MOUNTAINS, COLORADO: USGS PROF. PAPER 700-C, P. C19-C29.
LIPMAN, P.W., 1975, EVOLUTION OF THE PLATORO CALDERA COMPLEX AND RELATED VOLCANIC ROCKS, SOUTHEASTERN SAN JUAN MOUNTAINS, COLORADO: USGS PROF. PAPER 852.


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