Log InRegister
Quick Links : The Mindat ManualThe Rock H. Currier Digital LibraryMindat Newsletter [Free Download]
Home PageAbout MindatThe Mindat ManualHistory of MindatCopyright StatusWho We AreContact UsAdvertise on Mindat
Donate to MindatCorporate SponsorshipSponsor a PageSponsored PagesMindat AdvertisersAdvertise on Mindat
Learning CenterWhat is a mineral?The most common minerals on earthInformation for EducatorsMindat ArticlesThe ElementsThe Rock H. Currier Digital LibraryGeologic Time
Minerals by PropertiesMinerals by ChemistryAdvanced Locality SearchRandom MineralRandom LocalitySearch by minIDLocalities Near MeSearch ArticlesSearch GlossaryMore Search Options
Search For:
Mineral Name:
Locality Name:
Keyword(s):
 
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportCoordinate Completion ReportAdd Glossary Item
Mining CompaniesStatisticsUsersMineral MuseumsClubs & OrganizationsMineral Shows & EventsThe Mindat DirectoryDevice SettingsThe Mineral Quiz
Photo SearchPhoto GalleriesSearch by ColorNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day GalleryPhotography

Mike deposit, Maggie Creek Mining District, Eureka County, Nevada, USAi
Regional Level Types
Mike depositDeposit
Maggie Creek Mining DistrictMining District
Eureka CountyCounty
NevadaState
USACountry

This page is currently not sponsored. Click here to sponsor this page.
PhotosMapsSearch
Latitude & Longitude (WGS84):
40° 48' 16'' North , 116° 14' 17'' West
Latitude & Longitude (decimal):
40.80444,-116.23806
GeoHash:
G#: 9rm24unp0
GRN:
N28W63
Type:
Deposit
KΓΆppen climate type:
BSk : Cold semi-arid (steppe) climate
Nearest Settlements:
PlacePopulationDistance
Carlin2,302 (2017)15.1km
Elko20,279 (2017)40.1km
Crescent Valley392 (2011)51.8km
Mindat Locality ID:
231282
Long-form identifier:
mindat:1:2:231282:1
GUID (UUID V4):
2da0f314-0797-40e5-9d0d-29c4d0ccbf66


Carlin-type gold mineralization is concentrated along the northwest-dipping Soap Creek fault, the northwest-striking, northeast-dipping Good Hope reverse fault, and the west-dipping Valley fault.

Mike is at the northwest end of a 3-mile (5-km) long belt of Carlin-type gold deposits aligned along the footwall of the northwest-striking, northeast-dipping Good Hope fault. Mike is subdivided into the West Mike deposit in the footwall of this apparent reverse fault and the Main Mike deposit along the fault and in the hanging wall. Contact-metamorphic, Carlin-type, and secondarily enriched mineral systems are hosted in variable hornfels after Silurian to Devonian carbonate and siliciclastic rocks of the Roberts Mountains Formation, Popovich Formation, and Rodeo Creek unit, and in mafic to intermediate dikes of at least 107 Ma age. Contact-metamorphic mineralization is coincident with potassium metasomatism dated at 111-107 Ma, and the formation of hornfels and local skarn. Mineralization typically consists of quartz-sulfide veins dominated by coarse-grained pyrite and iron-rich sphalerite with minor galena, chalcopyrite, and molybdenite. Quartz-carbonate veins hosting an arsenic-bismuth-lead-silver sulfosalt also occur throughout the deposit. At northwest West Mike, sphalerite-dominated, replacement-style base-metal mineralization is concentrated along the contact between the Rodeo Creek unit and the Popovich Formation.
West Mike gold mineralization is roughly flat-lying and stratiform, and segregated into upper and lower zones. The upper zone is 200 to 450 feet (60-135 m) thick, decarbonatized, oxidized, and grades 0.025 opt (0.86 g/t) gold. The lower zone has similar thickness, is partially oxidized, grades 0.080 opt (2.7 g/t), and is coincident with a 70- to 200-foot (21-60 m) thick dolomitic front at the base of decarbonatization. Gold at Main Mike grades an average 0.037 opt (1.2 g/t) and occurs in an oxidized and decarbonatized zone at the intersection of the Soap Creek and Good Hope faults. Sulfide-zone gold at the Mike deposit occurs in micron-size, arsenian pyrite rims coating euhedral, coarser-grained pyrite. Oxide-zone copper occurs in copper silicates, clays, arsenates, phosphates, oxides, and carbonates. Copper is sited in chalcocite and locally covellite in the top-of-sulfide zone and in sulfide lenses in overlying oxidized rock. Copper-bearing zones are typically decarbonatized, clay altered, alunite veined/replaced, and iron oxide stained. Oxide gold deposits at both Main Mike and the analogous Tusc, 4,000 feet (1,200 m) to the southeast, contain higher-grade (>0.05 opt [1.7 g/t]), flat-lying, bedding-discordant cores-possible supergene upgrades.
Mineralization is completely covered by postmineral volcaniclastic sediment of the Tertiary Carlin Formation.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List

Mineral list contains entries from the region specified including sub-localities

35 valid minerals.

Detailed Mineral List:

β“˜ Alunite
Formula: KAl3(SO4)2(OH)6
β“˜ Azurite
Formula: Cu3(CO3)2(OH)2
β“˜ Baryte
Formula: BaSO4
β“˜ Bismuthinite
Formula: Bi2S3
β“˜ Chalcocite
Formula: Cu2S
β“˜ Chalcopyrite
Formula: CuFeS2
β“˜ Chrysocolla
Formula: Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
β“˜ Conichalcite
Formula: CaCu(AsO4)(OH)
β“˜ Copper
Formula: Cu
β“˜ Covellite
Formula: CuS
β“˜ Cuprite
Formula: Cu2O
β“˜ Digenite
Formula: Cu9S5
β“˜ Diopside
Formula: CaMgSi2O6
β“˜ Dolomite
Formula: CaMg(CO3)2
β“˜ Galena
Formula: PbS
β“˜ 'Garnet Group'
Formula: X3Z2(SiO4)3
β“˜ Gold
Formula: Au
β“˜ Hematite
Formula: Fe2O3
β“˜ Kaolinite
Formula: Al2(Si2O5)(OH)4
β“˜ Libethenite
Formula: Cu2(PO4)(OH)
β“˜ 'Limonite'
β“˜ Magnetite
Formula: Fe2+Fe3+2O4
β“˜ Malachite
Formula: Cu2(CO3)(OH)2
β“˜ Molybdenite
Formula: MoS2
β“˜ Montmorillonite
Formula: (Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
β“˜ Orpiment
Formula: As2S3
β“˜ Powellite
Formula: Ca(MoO4)
β“˜ Pyrite
Formula: FeS2
β“˜ Pyrite var. Arsenic-bearing Pyrite
Formula: Fe(S,As)2
β“˜ Quartz
Formula: SiO2
β“˜ Realgar
Formula: As4S4
β“˜ Scheelite
Formula: Ca(WO4)
β“˜ Siderite
Formula: FeCO3
β“˜ Siderite var. Manganese-bearing Siderite
Formula: (Fe,Mn)CO3
β“˜ Sphalerite
Formula: ZnS
β“˜ Stibnite
Formula: Sb2S3
β“˜ 'Tennantite Subgroup'
Formula: Cu6(Cu4C2+2)As4S12S
β“˜ Tenorite
Formula: CuO
β“˜ Tetradymite
Formula: Bi2Te2S
β“˜ Turquoise
Formula: CuAl6(PO4)4(OH)8 · 4H2O

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
β“˜Copper1.AA.05Cu
β“˜Gold1.AA.05Au
Group 2 - Sulphides and Sulfosalts
β“˜Chalcocite2.BA.05Cu2S
β“˜Digenite2.BA.10Cu9S5
β“˜Covellite2.CA.05aCuS
β“˜Sphalerite2.CB.05aZnS
β“˜Chalcopyrite2.CB.10aCuFeS2
β“˜Galena2.CD.10PbS
β“˜Bismuthinite2.DB.05Bi2S3
β“˜Stibnite2.DB.05Sb2S3
β“˜Tetradymite2.DC.05Bi2Te2S
β“˜Molybdenite2.EA.30MoS2
β“˜Pyrite
var. Arsenic-bearing Pyrite		2.EB.05aFe(S,As)2
β“˜2.EB.05aFeS2
β“˜Realgar2.FA.15aAs4S4
β“˜Orpiment2.FA.30As2S3
β“˜'Tennantite Subgroup'2.GB.05Cu6(Cu4C2+2)As4S12S
Group 4 - Oxides and Hydroxides
β“˜Cuprite4.AA.10Cu2O
β“˜Tenorite4.AB.10CuO
β“˜Magnetite4.BB.05Fe2+Fe3+2O4
β“˜Hematite4.CB.05Fe2O3
β“˜Quartz4.DA.05SiO2
Group 5 - Nitrates and Carbonates
β“˜Siderite5.AB.05FeCO3
β“˜var. Manganese-bearing Siderite5.AB.05(Fe,Mn)CO3
β“˜Dolomite5.AB.10CaMg(CO3)2
β“˜Azurite5.BA.05Cu3(CO3)2(OH)2
β“˜Malachite5.BA.10Cu2(CO3)(OH)2
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
β“˜Baryte7.AD.35BaSO4
β“˜Alunite7.BC.10KAl3(SO4)2(OH)6
β“˜Powellite7.GA.05Ca(MoO4)
β“˜Scheelite7.GA.05Ca(WO4)
Group 8 - Phosphates, Arsenates and Vanadates
β“˜Libethenite8.BB.30Cu2(PO4)(OH)
β“˜Conichalcite8.BH.35CaCu(AsO4)(OH)
β“˜Turquoise8.DD.15CuAl6(PO4)4(OH)8 Β· 4H2O
Group 9 - Silicates
β“˜Diopside9.DA.15CaMgSi2O6
β“˜Montmorillonite9.EC.40(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 Β· nH2O
β“˜Kaolinite9.ED.05Al2(Si2O5)(OH)4
β“˜Chrysocolla9.ED.20Cu2-xAlx(H2-xSi2O5)(OH)4 Β· nH2O, x < 1
Unclassified
β“˜'Garnet Group'-X3Z2(SiO4)3
β“˜'Limonite'-

List of minerals for each chemical element

HHydrogen
Hβ“˜ AluniteKAl3(SO4)2(OH)6
Hβ“˜ AzuriteCu3(CO3)2(OH)2
Hβ“˜ ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
Hβ“˜ ConichalciteCaCu(AsO4)(OH)
Hβ“˜ KaoliniteAl2(Si2O5)(OH)4
Hβ“˜ LibetheniteCu2(PO4)(OH)
Hβ“˜ MalachiteCu2(CO3)(OH)2
Hβ“˜ Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Hβ“˜ TurquoiseCuAl6(PO4)4(OH)8 · 4H2O
CCarbon
Cβ“˜ AzuriteCu3(CO3)2(OH)2
Cβ“˜ DolomiteCaMg(CO3)2
Cβ“˜ MalachiteCu2(CO3)(OH)2
Cβ“˜ SideriteFeCO3
Cβ“˜ Siderite var. Manganese-bearing Siderite(Fe,Mn)CO3
OOxygen
Oβ“˜ AluniteKAl3(SO4)2(OH)6
Oβ“˜ AzuriteCu3(CO3)2(OH)2
Oβ“˜ BaryteBaSO4
Oβ“˜ ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
Oβ“˜ ConichalciteCaCu(AsO4)(OH)
Oβ“˜ CupriteCu2O
Oβ“˜ DiopsideCaMgSi2O6
Oβ“˜ DolomiteCaMg(CO3)2
Oβ“˜ HematiteFe2O3
Oβ“˜ KaoliniteAl2(Si2O5)(OH)4
Oβ“˜ LibetheniteCu2(PO4)(OH)
Oβ“˜ MagnetiteFe2+Fe23+O4
Oβ“˜ MalachiteCu2(CO3)(OH)2
Oβ“˜ Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Oβ“˜ PowelliteCa(MoO4)
Oβ“˜ QuartzSiO2
Oβ“˜ ScheeliteCa(WO4)
Oβ“˜ SideriteFeCO3
Oβ“˜ TenoriteCuO
Oβ“˜ TurquoiseCuAl6(PO4)4(OH)8 · 4H2O
Oβ“˜ Garnet GroupX3Z2(SiO4)3
Oβ“˜ Siderite var. Manganese-bearing Siderite(Fe,Mn)CO3
NaSodium
Naβ“˜ Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
MgMagnesium
Mgβ“˜ DiopsideCaMgSi2O6
Mgβ“˜ DolomiteCaMg(CO3)2
Mgβ“˜ Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
AlAluminium
Alβ“˜ AluniteKAl3(SO4)2(OH)6
Alβ“˜ ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
Alβ“˜ KaoliniteAl2(Si2O5)(OH)4
Alβ“˜ Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Alβ“˜ TurquoiseCuAl6(PO4)4(OH)8 · 4H2O
SiSilicon
Siβ“˜ ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
Siβ“˜ DiopsideCaMgSi2O6
Siβ“˜ KaoliniteAl2(Si2O5)(OH)4
Siβ“˜ Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Siβ“˜ QuartzSiO2
Siβ“˜ Garnet GroupX3Z2(SiO4)3
PPhosphorus
Pβ“˜ LibetheniteCu2(PO4)(OH)
Pβ“˜ TurquoiseCuAl6(PO4)4(OH)8 · 4H2O
SSulfur
Sβ“˜ AluniteKAl3(SO4)2(OH)6
Sβ“˜ BaryteBaSO4
Sβ“˜ BismuthiniteBi2S3
Sβ“˜ ChalcopyriteCuFeS2
Sβ“˜ ChalcociteCu2S
Sβ“˜ CovelliteCuS
Sβ“˜ DigeniteCu9S5
Sβ“˜ GalenaPbS
Sβ“˜ MolybdeniteMoS2
Sβ“˜ OrpimentAs2S3
Sβ“˜ PyriteFeS2
Sβ“˜ RealgarAs4S4
Sβ“˜ SphaleriteZnS
Sβ“˜ StibniteSb2S3
Sβ“˜ Tennantite SubgroupCu6(Cu4C22+)As4S12S
Sβ“˜ TetradymiteBi2Te2S
Sβ“˜ Pyrite var. Arsenic-bearing PyriteFe(S,As)2
KPotassium
Kβ“˜ AluniteKAl3(SO4)2(OH)6
CaCalcium
Caβ“˜ ConichalciteCaCu(AsO4)(OH)
Caβ“˜ DiopsideCaMgSi2O6
Caβ“˜ DolomiteCaMg(CO3)2
Caβ“˜ Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Caβ“˜ PowelliteCa(MoO4)
Caβ“˜ ScheeliteCa(WO4)
MnManganese
Mnβ“˜ Siderite var. Manganese-bearing Siderite(Fe,Mn)CO3
FeIron
Feβ“˜ ChalcopyriteCuFeS2
Feβ“˜ HematiteFe2O3
Feβ“˜ MagnetiteFe2+Fe23+O4
Feβ“˜ PyriteFeS2
Feβ“˜ SideriteFeCO3
Feβ“˜ Siderite var. Manganese-bearing Siderite(Fe,Mn)CO3
Feβ“˜ Pyrite var. Arsenic-bearing PyriteFe(S,As)2
CuCopper
Cuβ“˜ AzuriteCu3(CO3)2(OH)2
Cuβ“˜ ChalcopyriteCuFeS2
Cuβ“˜ ChalcociteCu2S
Cuβ“˜ ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
Cuβ“˜ ConichalciteCaCu(AsO4)(OH)
Cuβ“˜ CovelliteCuS
Cuβ“˜ CupriteCu2O
Cuβ“˜ CopperCu
Cuβ“˜ DigeniteCu9S5
Cuβ“˜ LibetheniteCu2(PO4)(OH)
Cuβ“˜ MalachiteCu2(CO3)(OH)2
Cuβ“˜ Tennantite SubgroupCu6(Cu4C22+)As4S12S
Cuβ“˜ TenoriteCuO
Cuβ“˜ TurquoiseCuAl6(PO4)4(OH)8 · 4H2O
ZnZinc
Znβ“˜ SphaleriteZnS
AsArsenic
Asβ“˜ ConichalciteCaCu(AsO4)(OH)
Asβ“˜ OrpimentAs2S3
Asβ“˜ RealgarAs4S4
Asβ“˜ Tennantite SubgroupCu6(Cu4C22+)As4S12S
Asβ“˜ Pyrite var. Arsenic-bearing PyriteFe(S,As)2
MoMolybdenum
Moβ“˜ MolybdeniteMoS2
Moβ“˜ PowelliteCa(MoO4)
SbAntimony
Sbβ“˜ StibniteSb2S3
TeTellurium
Teβ“˜ TetradymiteBi2Te2S
BaBarium
Baβ“˜ BaryteBaSO4
WTungsten
Wβ“˜ ScheeliteCa(WO4)
AuGold
Auβ“˜ GoldAu
PbLead
Pbβ“˜ GalenaPbS
BiBismuth
Biβ“˜ BismuthiniteBi2S3
Biβ“˜ TetradymiteBi2Te2S

Other Databases

Link to USGS MRDS:10310468

Localities in this Region

USA

Other Regions, Features and Areas containing this locality

North America PlateTectonic Plate

This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.

References

John W. Norby and Michael J.T. Orobona (2002) Geology and Mineral Systems of the Mike Deposit. In: Gold Deposits of the Carlin Trend, NBMG Bulletin 111, pp. 143-167.
Bawden, T.M., et al. (2003): Extreme 34S depletions in ZnS at the Mike gold deposit, Carlin Trend, Nevada: Evidence for bacteriogenic supergene sphalerite. Geology 31, 913-916.
Quick NavTopMineral ListOther DatabasesLocalities in RegionOther RegionsReferences
 
Mineral and/or Locality  
Mindat Discussions Facebook Logo Instagram Logo Discord Logo
Mindat.org is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2024, except where stated. Most political location boundaries are Β© OpenStreetMap contributors. Mindat.org relies on the contributions of thousands of members and supporters. Founded in 2000 by Jolyon Ralph.
Privacy Policy - Terms & Conditions - Contact Us / DMCA issues - Report a bug/vulnerability Current server date and time: April 25, 2024 16:44:48 Page updated: April 15, 2024 22:32:47
Go to top of page