Mineral Evolution Database
Created and maintained by the Mineral Evolution Project in partnership with RRUFF and mindat.
Mineral locality data provided by mindat.org

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The goal of this page is to present localities at which the mineral is found, and estimates of the oldest possible geologic age of the minerals at these localities.


Locality Name:
Riddle District, Douglas Co., Oregon, USA

Oldest recorded age at locality: 163
Youngest recorded age at locality: 163

mindat Locality ID: 50156
mindat URL: http://www.mindat.org/loc-50156.html

Tectonic Settings:

Total number of sublocalities beneath "Riddle District, Douglas Co., Oregon, USA": 52
Total number of bottom-level sublocalities: 51

Number of Child Localities: 51
Child Localities:
A Mine (Rice Chrome)
Beaver Spring Occurrence
Black Boy (Starvout Group)
Buckhorn Prospect
Bull Run Placers
Cedar Springs Prospect
Cloudy Day
Curtis Occurrence (Starvout Creek)
Dodson Deposit (Whitsett)
Douglas Mine (Baker)
Fisher Occurrence
Flying Squirrel Occurrence
Forget-Me-Not
Four Point Chrome Claim
Garden Mines
Glenbrook Nickel Company (Nickel Mt Group)
Gold Bluff Mine
Gray Boy (Starvout Group)
Green Copper Claim
Green Mountain Occurrence
Green Mountain Prospect
Hackler Height Placer (Hackler & Heights Placer)
Hogum Hydraulic Mine (Hogum Creek; Booth Placer)
Huckleberry Mine
Indiana Placer
Levan's Ledge Mine
Linda Marie (Triple L)
Lucky Nine Group (Davis; Baxter; Pansy)
Mildred Mine
Miser Mine
Morris Occurrence
Nickel Mountain
Nickel Mountain (Hanna Nickel Mine)
Nickel Mountain Group (Lower Occurrence)
Nickel Mountain Group (Upper Occurrence)
Ollala Placers (Fisher Placer)
Puzzler Mine
Quartzmill Occurrence
Riddle
Silver Peak (Oregon Exploration Company; Umpqua Consolidated Mining Company; Silver Butte Mine)
Starve Out Occurrence
Stuempges Prospect
Sweetbriar Occurrence (Gold Ridge Claim?)
Tennessee Bulch Prospect
Union Leader
Unnamed Gold Pit (MRDS - 10298321)
Unnamed Gold Prospect (MRDS - 10176690)
Unnamed Gold Prospect (MRDS - 10274511)
Victory Placer Mine
Warner
Willis Occurrence

Latitude: 42°50'50"N
Longitude: 123°19'21"W
Decimal Degree (lat, lon): 42.847222222222,-123.3225

AThis mineral is Anthropogenic.
GThis mineral is directly dated.
BThis mineral is reported as having this age.
YThis mineral is using an age reported as an element mineralization period.
OThis mineral is using an age calculated from all data at the locality.
RThe age displayed for this mineral originates from a different, non-child locality.
PThe age displayed for this mineral is the range of ages for this mineral at all of this locality's children.
This mineral's age has not yet been recorded.

This Mineral list contains entries from this locality, including sub-localities. Minerals in bold are reported by mindat.org as occurring directly at this locality, and do not occur at any children (sublocalities) of this locality.

Elements at this locality, including sub-localities: Al As Au Ba C Cr Cu Fe H Hg Mg Ni O Pb S Si Ti Zn 

Elements from minerals reported directly at this locality: 

Structural Groups for minerals in this locality: 
BaryteChalcopyriteClayCopperCorundumCovelliteCubaniteMalachiteNickelineNone
PyriteQuartzRocksaltSepioliteSerpentineSphaleriteSpinelTetrahedriteWurtzite

22 IMA Minerals at location:
Baryte  (*)Bornite  (*)Chalcocite  (*)Chalcopyrite  (*)Chromite  (*)
Covellite  (*)Cubanite  (*)Galena  (*)Gold  (*)Ilmenite  (*)
Lizardite  (*)Magnetite  (*)Malachite  (*)Mercury  (*)Pecoraite  (*)
Pyrite  (*)Pyrrhotite  (*)Quartz  (*)Sepiolite  (*)Sphalerite  (*)
Spinel  (*)Tennantite-(Fe)  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Baryte  (*)BaryteBa(SO4)125747611547
Bornite  (*)NoneCu5FeS42257437,2574765516
Chalcocite  (*)NoneCu2S2257476,2574785707
Chalcopyrite  (*)ChalcopyriteCuFeS27257437,257442,257448,257456,257461,257476,25747927198
Chromite  (*)SpinelFe2+Cr2O416316311257436,257438,257439,257449,257453,257455,257462,257463,257468,257469,2574773902
Covellite  (*)CovelliteCuS12574764165
Cubanite  (*)Cubanite WurtziteCuFe2S31257456802
Galena  (*)RocksaltPbS125747624243
Gold  (*)CopperAu7257442,257443,257445,257448,257461,257471,25748730554
Ilmenite  (*)CorundumFe2+Ti4+O312574685433
Lizardite  (*)Serpentine ClayMg3Si2O5(OH)41257474359
Magnetite  (*)SpinelFe2+Fe3+2O42257468,25747814899
Malachite  (*)MalachiteCu2(CO3)(OH)22257478,25747912537
Mercury  (*)NoneHg1257466397
Pecoraite  (*)Clay SerpentineNi3Si2O5(OH)4125747540
Pyrite  (*)PyriteFeS29257437,257448,257456,257459,257461,257473,257476,257479,25748739462
Pyrrhotite  (*)NickelineFe7S812574569056
Quartz  (*)QuartzSiO24257442,257468,257474,25747661156
Sepiolite  (*)Sepiolite ClayMg4Si6O15(OH)2·6H2O1257468241
Sphalerite  (*)SphaleriteZnS2257437,25747621482
Spinel  (*)SpinelMgAl2O412574681934
Tennantite-(Fe)  (*)TetrahedriteCu6(Cu4Fe2)As4S1312574761803



5 Ages assigned to this locality:

Excel IDMax Age (Ma)Min Age (Ma)Age as listed in referenceDating MethodAge InterpretPrioritized?Sample SourceSample NumRun NumAge from other LocalityDated MineralMinerals explicitely stated as having this ageAge applies to these ElementsMinDat Locality IDDated Locality (Max Age)Location as listed in referenceReferenceReference DOIReference IDAge Notes
podchrome-00415163163Middle Jurassic (164-162 Ma)       Cr147594Black Boy (Starvout Group), Riddle District, Douglas Co., Oregon, USABlack Boy ChromiteMoiser et al. (2012) USGSSIR2012_5157 
podchrome-00416163163Middle Jurassic (164-162 Ma)       Cr148876Four Point Chrome Claim, Riddle District, Douglas Co., Oregon, USAFour Point Chrome ClaimMoiser et al. (2012) USGSSIR2012_5157 
podchrome-00414163163Middle Jurassic (164-162 Ma)       Cr149966Linda Marie (Triple L), Riddle District, Douglas Co., Oregon, USALinda Maria ClaimMoiser et al. (2012) USGSSIR2012_5157 
podchrome-00412163163Middle Jurassic (164-162 Ma)       Cr150136Lucky Nine Group (Davis; Baxter; Pansy), Riddle District, Douglas Co., Oregon, USAUnnamed CutsMoiser et al. (2012) USGSSIR2012_5157 
podchrome-00413163163Middle Jurassic (164-162 Ma)       Cr150136Lucky Nine Group (Davis; Baxter; Pansy), Riddle District, Douglas Co., Oregon, USADavis CutMoiser et al. (2012) USGSSIR2012_5157 


SampleSource LocalityReference URL


All locality data graciously provided by mindat.org

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