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Josephine Creek placers, Josephine Creek District, Josephine Co., Oregon, USAi
Regional Level Types
Josephine Creek placersGroup of Placers
Josephine Creek DistrictMining District
Josephine Co.County
OregonState
USACountry

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Key
Lock Map
Latitude & Longitude (WGS84): 42° 13' 16'' North , 123° 42' 35'' West
Latitude & Longitude (decimal): 42.22111,-123.70972
GeoHash:G#: 9r800yj7f
USGS MRDS Record:60000926
Locality type:Group of Placers
Köppen climate type:Csb : Warm-summer Mediterranean climate
Nearest Settlements:
PlacePopulationDistance
Kerby595 (2011)5.6km
Cave Junction1,932 (2017)8.2km
Selma695 (2011)10.0km
O'Brien504 (2011)17.1km
Takilma378 (2011)20.3km


Placer Au-Ni-PGE (Pt-Ir)-Cr-Fe deposits located in sec. 36, T38S, R9W, WM, in Siskiyou National Forest and Illinois National Wild and Scenic River area (designated wilderness land). The deposits are located in Josephine Creek and in the Illinois River from the mouth of Josephine Creek downstream to the mouth of Deer Creek. Many of the workings are in sec. 36 on Josephine Creek. Discovered in 1850. First production was in 1852. MRDS location given is for the mine symbol near the center of sec. 36 shown on the topo map, accurate within area. MRDS database stated accuracy for this location is 100 meters.

Mineralization is a placer Au-PGE deposit (Mineral occurrence model information: Model code 119; USGS model code 39a; BC deposit profile C01. C02; Deposit model name:Placer Au-PGE; Mark3 model number 54). Controls for ore emplacement included stream hydraulics. Local rocks include ultramafic and related rocks of ophiolite sequences (Jurassic).

Following are names of the included sub-localities and/or alternate names: Gold King, Golden Princess, Bear, Independence, Old Ray, Norton, Billman.

Regions containing this locality

Pacific OceanOcean
North America PlateTectonic Plate

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded from this region.


Mineral List

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

30 valid minerals. 1 (TL) - type locality of valid minerals.

Detailed Mineral List:

Andradite
Formula: Ca3Fe3+2(SiO4)3
Reference: www.geo.cornell.edu/geology/faculty/Bird.html.; (inclusions in "josephinite" nuggets) Dick, H.J.B. (1974) Earth and Planetary Science Letters, 24, 291-298.; Dick, H. J. (1974). Terrestrial nickel-iron from the Josephine peridotite, its geologic occurrence, associations, and origin. Earth and Planetary Science Letters, 24(2), 291-298
Awaruite
Formula: Ni3Fe
Reference: Dick, H.J.B. (1974) Earth and Planetary Science Letters, 24, 291-298.
Bornite
Formula: Cu5FeS4
Reference: bronze-purple alluvial pebble obtained by Alfredo Petrov, originally labelled "awaruite, Josephine Creek" - microprobed by Excalibur Mineral Co.; Fleischer M (1960) New mineral names. American Mineralogist 45, 1130-1136
Chalcopyrite
Formula: CuFeS2
Reference: Fleischer M (1960) New mineral names. American Mineralogist 45, 1130-1136
Chromite
Formula: Fe2+Cr3+2O4
Clinochlore
Formula: Mg5Al(AlSi3O10)(OH)8
Reference: Fleischer M (1960) New mineral names. American Mineralogist 45, 1130-1136
Clinochlore var: Chromian Clinochlore
Formula: Mg5(Al,Cr)2Si3O10(OH)8
Description: The mineral contains 2.04 mas.% Cr2O2 and 0.59 mas.% NiO.
Reference: Pavel M. Kartashov analytical data (2013), Lonny Hodges specimens
Clinochlore var: Pennine
Formula: Mg5Al(AlSi3O10)(OH)8
Reference: Fleischer M (1960) New mineral names. American Mineralogist 45, 1130-1136
Copper
Formula: Cu
Reference: (inclusions in "josephinite" nuggets) Dick, H.J.B. (1974) Earth and Planetary Science Letters, 24, 291-298.; Fleischer M (1960) New mineral names. American Mineralogist 45, 1130-1136
Copper var: Nickeloan Copper
Formula: (Cu,Ni,Fe)
Reference: Pavel M. Kartashov analytical data (2013), Lonny Hodges specimens
Cuprite
Formula: Cu2O
Reference: Pavel M. Kartashov analytical data (2013), Lonny Hodges specimens
Daubréeite
Formula: (BiO)(OH,Cl)
Reference: Dr. Frank Keutsch specimen (microinclusion in awaruite nugget)
Gold
Formula: Au
Hematite
Formula: Fe2O3
Reference: Oregon Metal Mines Handbook, 1952, Oregon Department of Geology and Mineral Industries: Bulletin No. 14-C, Vol. 2, Section 1 - Josephine Co., 2nd Edition, page 123.
Iridium
Formula: (Ir,Os,Ru)
Iridium var: Osmiridium
Formula: (Ir,Os,Ru)
Reference: www.geo.cornell.edu/geology/faculty/Bird.html.
Kassite
Formula: CaTi2O4(OH)2
Reference: Am Min 76:283-287
'Limonite'
Formula: (Fe,O,OH,H2O)
Maghemite
Formula: Fe3+2O3
Reference: www.geo.cornell.edu/geology/faculty/Bird.html.
Magnetite
Formula: Fe2+Fe3+2O4
Reference: www.geo.cornell.edu/geology/faculty/Bird.html.; Dick, H.J.B. (1974) Earth and Planetary Science Letters, 24, 291-298.; Dick, H. J. (1974). Terrestrial nickel-iron from the Josephine peridotite, its geologic occurrence, associations, and origin. Earth and Planetary Science Letters, 24(2), 291-298
Malachite
Formula: Cu2(CO3)(OH)2
Reference: Pavel M. Kartashov analytical data (2013), Lonny Hodges specimens
Molybdenite
Formula: MoS2
Reference: Fleischer M (1960) New mineral names. American Mineralogist 45, 1130-1136
Nickeline ?
Formula: NiAs
Reference: Fleischer M (1960) New mineral names. American Mineralogist 45, 1130-1136
Orcelite
Formula: Ni5-xAs2, x ~ 0.25
Description: Microinclusions in Josephinite pebble.
Reference: Pavel M. Kartashov analytical data (1992)
Oregonite (TL)
Formula: Ni2FeAs2
Type Locality:
Reference: Ramdohr V P, Schmitt M (1959) Oregonit ein neues Nickel-Eisenarsenid mit metallartigen Eigenschaften. Neues Jahrbuch für Mineralogie, Monatshefte 1959, 239-247.; Fleischer M (1960) New mineral names. American Mineralogist 45, 1130-1136; Dick, H. J. (1974). Terrestrial nickel-iron from the Josephine peridotite, its geologic occurrence, associations, and origin. Earth and Planetary Science Letters, 24(2), 291-298
Osmium
Formula: (Os,Ir,Ru)
Reference: www.geo.cornell.edu/geology/faculty/Bird.html.
Osmium var: Iridosmine
Formula: (Os,Ir)
Reference: www.geo.cornell.edu/geology/faculty/Bird.html.
Pentlandite
Formula: (FexNiy)Σ9S8
Reference: Pavel M. Kartashov analytical data of 2017
Platinum
Formula: Pt
Reference: Oregon Metal Mines Handbook, 1952, Oregon Department of Geology and Mineral Industries: Bulletin No. 14-C, Vol. 2, Section 1 - Josephine Co., 2nd Edition, page 123.
Ringwoodite ?
Formula: (Mg,Fe2+)2SiO4
Reference: www.geo.cornell.edu/geology/faculty/Bird.html
Rutile
Formula: TiO2
Reference: Am Min 76:283-287
'Serpentine Subgroup'
Formula: D3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
Reference: www.geo.cornell.edu/geology/faculty/Bird.html.; Fleischer M (1960) New mineral names. American Mineralogist 45, 1130-1136
'Serpentine Subgroup var: Picrolite'
Formula: D3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
Reference: (inclusions in "josephinite" nuggets) Dick, H.J.B. (1974) Earth and Planetary Science Letters, 24, 291-298.
Silicon
Formula: Si
Reference: www.geo.cornell.edu/geology/faculty/Bird.html
Silver
Formula: Ag
Reference: (inclusions in "josephinite" nuggets) Dick, H.J.B. (1974) Earth and Planetary Science Letters, 24, 291-298.; Pavel M. Kartashov analytical data of 2017
Tetrataenite
Formula: FeNi
Reference: Pavel M. Kartashov analytical data of 2017
Trevorite
Formula: Ni2+Fe3+2O4
Reference: www.geo.cornell.edu/geology/faculty/Bird.html.
Wairauite
Formula: CoFe
Reference: www.geo.cornell.edu/geology/faculty/Bird.html; (inclusions in "josephinite" nuggets) Dick, H.J.B. (1974) Earth and Planetary Science Letters, 24, 291-298.

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
Awaruite1.AE.20Ni3Fe
Copper1.AA.05Cu
var: Nickeloan Copper1.AA.05(Cu,Ni,Fe)
Gold1.AA.05Au
Iridium1.AF.10(Ir,Os,Ru)
var: Osmiridium1.AF.10(Ir,Os,Ru)
Osmium1.AF.05(Os,Ir,Ru)
var: Iridosmine1.AF.05(Os,Ir)
Platinum1.AF.10Pt
Silicon1.CB.15Si
Silver1.AA.05Ag
Tetrataenite1.AE.10FeNi
Wairauite1.AE.15CoFe
Group 2 - Sulphides and Sulfosalts
Bornite2.BA.15Cu5FeS4
Chalcopyrite2.CB.10aCuFeS2
Molybdenite2.EA.30MoS2
Nickeline ?2.CC.05NiAs
Orcelite2.AB.10Ni5-xAs2, x ~ 0.25
Oregonite (TL)2.BB.05Ni2FeAs2
Pentlandite2.BB.15(FexNiy)Σ9S8
Group 3 - Halides
Daubréeite3.DC.25(BiO)(OH,Cl)
Group 4 - Oxides and Hydroxides
Chromite4.BB.05Fe2+Cr3+2O4
Cuprite4.AA.10Cu2O
Hematite4.CB.05Fe2O3
Kassite4.DH.10CaTi2O4(OH)2
Maghemite4.BB.15Fe3+2O3
Magnetite4.BB.05Fe2+Fe3+2O4
Rutile4.DB.05TiO2
Trevorite4.BB.05Ni2+Fe3+2O4
Group 5 - Nitrates and Carbonates
Malachite5.BA.10Cu2(CO3)(OH)2
Group 9 - Silicates
Andradite9.AD.25Ca3Fe3+2(SiO4)3
Clinochlore9.EC.55Mg5Al(AlSi3O10)(OH)8
var: Chromian Clinochlore9.EC.55Mg5(Al,Cr)2Si3O10(OH)8
var: Pennine9.EC.55Mg5Al(AlSi3O10)(OH)8
Ringwoodite ?9.AC.15(Mg,Fe2+)2SiO4
Unclassified Minerals, Rocks, etc.
'Limonite'-(Fe,O,OH,H2O)
'Serpentine Subgroup'-D3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
'var: Picrolite'-D3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn

List of minerals arranged by Dana 8th Edition classification

Group 1 - NATIVE ELEMENTS AND ALLOYS
Metals, other than the Platinum Group
Awaruite1.1.11.4Ni3Fe
Copper1.1.1.3Cu
Gold1.1.1.1Au
Silver1.1.1.2Ag
Tetrataenite1.1.11.3FeNi
Wairauite1.1.11.6CoFe
Platinum Group Metals and Alloys
Iridium1.2.1.2(Ir,Os,Ru)
Osmium1.2.2.1(Os,Ir,Ru)
Platinum1.2.1.1Pt
Semi-metals and non-metals
Silicon1.3.7.1Si
Group 2 - SULFIDES
AmBnXp, with (m+n):p = 5:2
Orcelite2.3.2.1Ni5-xAs2, x ~ 0.25
AmBnXp, with (m+n):p = 3:2
Bornite2.5.2.1Cu5FeS4
Oregonite (TL)2.5.4.1Ni2FeAs2
AmBnXp, with (m+n):p = 9:8
Pentlandite2.7.1.1(FexNiy)Σ9S8
AmXp, with m:p = 1:1
Nickeline ?2.8.11.1NiAs
AmBnXp, with (m+n):p = 1:1
Chalcopyrite2.9.1.1CuFeS2
AmBnXp, with (m+n):p = 1:2
Molybdenite2.12.10.1MoS2
Group 4 - SIMPLE OXIDES
A2X
Cuprite4.1.1.1Cu2O
A2X3
Hematite4.3.1.2Fe2O3
Maghemite4.3.7.1Fe3+2O3
AX2
Rutile4.4.1.1TiO2
Group 7 - MULTIPLE OXIDES
AB2X4
Chromite7.2.3.3Fe2+Cr3+2O4
Magnetite7.2.2.3Fe2+Fe3+2O4
Trevorite7.2.2.5Ni2+Fe3+2O4
Group 8 - MULTIPLE OXIDES CONTAINING NIOBIUM,TANTALUM OR TITANIUM
AB2O6
Kassite8.3.9.1CaTi2O4(OH)2
Group 10 - OXYHALIDES AND HYDROXYHALIDES
A(O,OH)Xq
Daubréeite10.2.1.3(BiO)(OH,Cl)
Group 16a - ANHYDROUS CARBONATES CONTAINING HYDROXYL OR HALOGEN
Malachite16a.3.1.1Cu2(CO3)(OH)2
Group 51 - NESOSILICATES Insular SiO4 Groups Only
Insular SiO4 Groups Only with all cations in octahedral [6] coordination
Ringwoodite ?51.3.3.1(Mg,Fe2+)2SiO4
Insular SiO4 Groups Only with cations in [6] and >[6] coordination
Andradite51.4.3b.1Ca3Fe3+2(SiO4)3
Group 71 - PHYLLOSILICATES Sheets of Six-Membered Rings
Sheets of 6-membered rings interlayered 1:1, 2:1, and octahedra
Clinochlore71.4.1.4Mg5Al(AlSi3O10)(OH)8
Unclassified Minerals, Mixtures, etc.
var: Chromian Clinochlore-Mg5(Al,Cr)2Si3O10(OH)8
var: Pennine-Mg5Al(AlSi3O10)(OH)8
Copper
var: Nickeloan Copper
-(Cu,Ni,Fe)
Iridium
var: Osmiridium
-(Ir,Os,Ru)
'Limonite'-(Fe,O,OH,H2O)
Osmium
var: Iridosmine
-(Os,Ir)
'Serpentine Subgroup'-D3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
'var: Picrolite'-D3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn

List of minerals for each chemical element

HHydrogen
H Serpentine SubgroupD3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
H Limonite(Fe,O,OH,H2O)
H KassiteCaTi2O4(OH)2
H Serpentine Subgroup (var: Picrolite)D3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
H Daubréeite(BiO)(OH,Cl)
H Clinochlore (var: Pennine)Mg5Al(AlSi3O10)(OH)8
H MalachiteCu2(CO3)(OH)2
H Clinochlore (var: Chromian Clinochlore)Mg5(Al,Cr)2Si3O10(OH)8
H ClinochloreMg5Al(AlSi3O10)(OH)8
CCarbon
C MalachiteCu2(CO3)(OH)2
OOxygen
O AndraditeCa3Fe23+(SiO4)3
O MagnetiteFe2+Fe23+O4
O MaghemiteFe23+O3
O TrevoriteNi2+Fe23+O4
O Serpentine SubgroupD3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
O Limonite(Fe,O,OH,H2O)
O ChromiteFe2+Cr23+O4
O HematiteFe2O3
O RutileTiO2
O KassiteCaTi2O4(OH)2
O Serpentine Subgroup (var: Picrolite)D3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
O Daubréeite(BiO)(OH,Cl)
O Clinochlore (var: Pennine)Mg5Al(AlSi3O10)(OH)8
O MalachiteCu2(CO3)(OH)2
O CupriteCu2O
O Clinochlore (var: Chromian Clinochlore)Mg5(Al,Cr)2Si3O10(OH)8
O ClinochloreMg5Al(AlSi3O10)(OH)8
O Ringwoodite(Mg,Fe2+)2SiO4
MgMagnesium
Mg Serpentine SubgroupD3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
Mg Serpentine Subgroup (var: Picrolite)D3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
Mg Clinochlore (var: Pennine)Mg5Al(AlSi3O10)(OH)8
Mg Clinochlore (var: Chromian Clinochlore)Mg5(Al,Cr)2Si3O10(OH)8
Mg ClinochloreMg5Al(AlSi3O10)(OH)8
Mg Ringwoodite(Mg,Fe2+)2SiO4
AlAluminium
Al Serpentine SubgroupD3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
Al Serpentine Subgroup (var: Picrolite)D3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
Al Clinochlore (var: Pennine)Mg5Al(AlSi3O10)(OH)8
Al Clinochlore (var: Chromian Clinochlore)Mg5(Al,Cr)2Si3O10(OH)8
Al ClinochloreMg5Al(AlSi3O10)(OH)8
SiSilicon
Si AndraditeCa3Fe23+(SiO4)3
Si Serpentine SubgroupD3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
Si SiliconSi
Si Serpentine Subgroup (var: Picrolite)D3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
Si Clinochlore (var: Pennine)Mg5Al(AlSi3O10)(OH)8
Si Clinochlore (var: Chromian Clinochlore)Mg5(Al,Cr)2Si3O10(OH)8
Si ClinochloreMg5Al(AlSi3O10)(OH)8
Si Ringwoodite(Mg,Fe2+)2SiO4
SSulfur
S BorniteCu5FeS4
S MolybdeniteMoS2
S ChalcopyriteCuFeS2
S Pentlandite(FexNiy)Σ9S8
ClChlorine
Cl Daubréeite(BiO)(OH,Cl)
CaCalcium
Ca AndraditeCa3Fe23+(SiO4)3
Ca KassiteCaTi2O4(OH)2
TiTitanium
Ti RutileTiO2
Ti KassiteCaTi2O4(OH)2
CrChromium
Cr ChromiteFe2+Cr23+O4
Cr Clinochlore (var: Chromian Clinochlore)Mg5(Al,Cr)2Si3O10(OH)8
MnManganese
Mn Serpentine SubgroupD3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
Mn Serpentine Subgroup (var: Picrolite)D3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
FeIron
Fe OregoniteNi2FeAs2
Fe AwaruiteNi3Fe
Fe AndraditeCa3Fe23+(SiO4)3
Fe MagnetiteFe2+Fe23+O4
Fe MaghemiteFe23+O3
Fe TrevoriteNi2+Fe23+O4
Fe Serpentine SubgroupD3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
Fe BorniteCu5FeS4
Fe WairauiteCoFe
Fe Limonite(Fe,O,OH,H2O)
Fe ChromiteFe2+Cr23+O4
Fe HematiteFe2O3
Fe Serpentine Subgroup (var: Picrolite)D3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
Fe ChalcopyriteCuFeS2
Fe Copper (var: Nickeloan Copper)(Cu,Ni,Fe)
Fe TetrataeniteFeNi
Fe Pentlandite(FexNiy)Σ9S8
Fe Ringwoodite(Mg,Fe2+)2SiO4
CoCobalt
Co WairauiteCoFe
NiNickel
Ni OregoniteNi2FeAs2
Ni AwaruiteNi3Fe
Ni TrevoriteNi2+Fe23+O4
Ni Serpentine SubgroupD3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
Ni Serpentine Subgroup (var: Picrolite)D3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
Ni OrceliteNi5-xAs2, x ~ 0.25
Ni Copper (var: Nickeloan Copper)(Cu,Ni,Fe)
Ni TetrataeniteFeNi
Ni Pentlandite(FexNiy)Σ9S8
Ni NickelineNiAs
CuCopper
Cu BorniteCu5FeS4
Cu CopperCu
Cu ChalcopyriteCuFeS2
Cu Copper (var: Nickeloan Copper)(Cu,Ni,Fe)
Cu MalachiteCu2(CO3)(OH)2
Cu CupriteCu2O
ZnZinc
Zn Serpentine SubgroupD3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
Zn Serpentine Subgroup (var: Picrolite)D3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
AsArsenic
As OregoniteNi2FeAs2
As OrceliteNi5-xAs2, x ~ 0.25
As NickelineNiAs
MoMolybdenum
Mo MolybdeniteMoS2
RuRuthenium
Ru Iridium (var: Osmiridium)(Ir,Os,Ru)
AgSilver
Ag SilverAg
OsOsmium
Os Iridium (var: Osmiridium)(Ir,Os,Ru)
Os Osmium (var: Iridosmine)(Os,Ir)
Os Osmium(Os,Ir,Ru)
IrIridium
Ir Iridium (var: Osmiridium)(Ir,Os,Ru)
Ir Osmium (var: Iridosmine)(Os,Ir)
Ir Iridium(Ir,Os,Ru)
PtPlatinum
Pt PlatinumPt
AuGold
Au GoldAu
BiBismuth
Bi Daubréeite(BiO)(OH,Cl)

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

Pleistocene
0.0117 - 2.588 Ma



ID: 1482885
Quaternary surficial deposits; Terrace deposits

Age: Pleistocene (0.0117 - 2.588 Ma)

Description: River terrace deposits; unconsolidated rocks; mixed grained sediments; fluvial; mixed grains

Lithology: Major:: {terrace sediment}

Reference: R.L. Smith, W.P. Roe (compilers). Oregon Geologic Data Compilation, release 6. State of Oregon Department of Geology and Mineral Industries. [20]

Jurassic
145 - 201.3 Ma



ID: 3188602
Mesozoic volcanic and intrusive rocks

Age: Jurassic (145 - 201.3 Ma)

Stratigraphic Name: Josephine Ophiolite

Lithology: Ophiolite complex; mafic 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]

Jurassic - Paleozoic
145 - 541 Ma



ID: 3013144
Ultramafic and related rocks of ophiolite sequences

Age: Phanerozoic (145 - 541 Ma)

Description: Predominantly harzburgite and dunite with both cumulate and tectonite fabrics. Locally altered to serpentinite. Includes gabbroic rocks and sheeted diabasic dike complexes. Comprises Josephine ophiolite of Harper (1980), ophiolites of Onion Mountain, Sexton Mountain, Pearsoll Peak, Rogue River, and Riddle areas (Smith and others, 1982) and Coast Range ophiolite and serpentinite melange of M.C. Blake, Jr. and A.S. Jayko (unpublished data, 1985). In southwest Oregon, locally includes small bodies of early Mesozoic or late Paleozoic serpentinized and sheared ultramafic rocks, mostly in shear zones. Locally, volcanic and sedimentary rocks shown separately

Comments: Original map source: Miller, R.J., Raines, G.L., and Connors, K.A., 2002, Spatial digital database for the geologic map of Oregon: Geology compiled by G.W. Walker and N.S. MacLeod, USGS Open-File Report 03-67, scale 1:500,000.

Lithology: Major:{peridotite,serpentinite}, Minor:{gabbro,diorite}

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)
Schmeltz, Fred W. (1931) Interesting localities and how to reach them: Josephine Creek, Oregon. Rocks and Minerals, 6, #3, 142. (on panning for "josephinite" nuggets)
Oregon Department of Geology and Mineral Industries Bulletin 14-C (1942), Volume 2: 120-150.
Oregon Metal Mines Handbook (1952), Oregon Department of Geology and Mineral Industries: Bulletin No. 14-C, Vol. 2, Section 1 - Josephine Co., 2nd Edition, page 123.
Ramdohr V P, Schmitt M (1959) Oregonit ein neues Nickel-Eisenarsenid mit metallartigen Eigenschaften. Neues Jahrbuch für Mineralogie, Monatshefte 1959, 239-247.
Brooks, H.C., and Ramp, Len (1968), Gold and Silver in Oregon: Oregon Department of geology and Mineral Industries Bulletin 61: 194.
Spencer, C.H., Jr. (1971), Statistical Correlation of Platinum Metals with Heavy Minerals in Stream Sediments of the Klamath Mountains, California: San Jose, California State University, M.S. thesis: 30, 34.
Dick, H.J.B. (1974), Terrestrial nickel-iron from the Josephine peridotite, its geologic occurrence, associations, and origin. Earth and Planetary Science Letters: 24(2): 291-298.
Bird, J. M., & Weathers, M. S. (1975). Josephinite: specimens from the Earth's core?. Earth and Planetary Science Letters, 28(1), 51-64.
Ramp, Len, and Peterson, N.V. (1979), Geology and Mineral Resources of Josephine County, Oregon: Oregon Department of Geology and Mineral Industries Bulletin 100: 30.
Brooks, H.C., Ramp, Len, Ferns, M.L., and Gray, J.J. (1985), Mineral Industry in Oregon, 1984, Oregon Geology, Volume 47, No. 4: 39-46.
American Mineralogist (1991): 76: 283-287.
Kartashov, Pavel M. (1992), analytical data.
USGS (2005), Mineral Resources Data System (MRDS): U.S. Geological Survey, Reston, Virginia, loc. file ID #60000926 & 10274123.
U.S. Bureau of Mines, Minerals Availability System (MAS) file ID #0410330282.

External Links

www.geo.cornell.edu/geology/faculty/Bird.html. (inclusions in "josephinite" nuggets)

Localities in this Region
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