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Peace River meteorite, Peace River, Alberta, Canadai
Regional Level Types
Peace River meteoriteMeteorite Fall Location
Peace RiverRiver
AlbertaProvince
CanadaCountry

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Latitude & Longitude (WGS84): 56° 7' 59'' North , 117° 55' 59'' West
Latitude & Longitude (decimal): 56.13333,-117.93333
GeoHash:G#: c3upk6g86
Locality type:Meteorite Fall Location
Meteorite Class:L6 chondrite meteorite
Meteoritical Society Class:L6
Metbull:View entry in Meteoritical Bulletin Database
Köppen climate type:Dfc : Subarctic climate
Nearest Settlements:
PlacePopulationDistance
Grimshaw2,560 (2008)21.2km
Fairview3,312 (2017)29.0km


Ordinary Chondrite, shocked (L6; S4; W0)
Fell, 31 March 1963; 45.76 kg

Just over 3 week after a fireball and detonations, fragments of the Peace River meteorite were recovered after much of the snow had melted. The meteorite is particularly interesting because it contains ringwoodite and wadsleyite (two high-pressure polymorphs of olivine) and majorite (a high-pressure polymorph of orthopyroxene).

The meteorite is today classified as an L6 chondrite, a member of the low iron geochemical group of ordinary chondrites. When recovered it was classified as a hypersthene-olivine chondrite utilizing more explicitly mineralogical criteria than is current practice.

Regions containing this locality

North America PlatePlate

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


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

Meteorite/Rock Types Recorded

Note: this is a very new system on mindat.org and data is currently VERY limited. Please bear with us while we work towards adding this information!

Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

Akimotoite
Formula: (Mg,Fe2+)SiO3
'Albite-Anorthite Series'
'Apatite'
Chromite
Formula: Fe2+Cr3+2O4
'Fayalite-Forsterite Series'
Ilmenite
Formula: Fe2+TiO3
Iron
Formula: Fe
Iron var: Kamacite
Formula: (Fe,Ni)
Jadeite
Formula: Na(Al,Fe3+)Si2O6
Majorite
Formula: Mg3(Fe2+,Si,Al)2(SiO4)3
'Maskelynite'
Merrillite
Formula: Ca9NaMg(PO4)7
'Orthopyroxene Subgroup'
Ringwoodite
Formula: (Mg,Fe2+)2SiO4
Troilite
Formula: FeS
Wadsleyite (TL)
Formula: (Mg,Fe2+)2(SiO4)
Type Locality:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
Iron1.AE.05Fe
var: Kamacite1.AE.05(Fe,Ni)
Group 2 - Sulphides and Sulfosalts
Troilite2.CC.10FeS
Group 4 - Oxides and Hydroxides
Akimotoite4.CB.05(Mg,Fe2+)SiO3
Chromite4.BB.05Fe2+Cr3+2O4
Ilmenite4.CB.05Fe2+TiO3
Group 8 - Phosphates, Arsenates and Vanadates
Merrillite8.AC.45Ca9NaMg(PO4)7
Group 9 - Silicates
Jadeite9.DA.25Na(Al,Fe3+)Si2O6
Majorite9.AD.25Mg3(Fe2+,Si,Al)2(SiO4)3
Ringwoodite9.AC.15(Mg,Fe2+)2SiO4
Wadsleyite (TL)9.BE.02(Mg,Fe2+)2(SiO4)
Unclassified Minerals, Rocks, etc.
'Albite-Anorthite Series'-
'Apatite'-
'Fayalite-Forsterite Series'-
'Maskelynite'-
'Orthopyroxene Subgroup'-

List of minerals arranged by Dana 8th Edition classification

Group 1 - NATIVE ELEMENTS AND ALLOYS
Metals, other than the Platinum Group
Iron
var: Kamacite
1.1.11.1(Fe,Ni)
Group 2 - SULFIDES
AmXp, with m:p = 1:1
Troilite2.8.9.1FeS
Group 4 - SIMPLE OXIDES
A2X3
Ilmenite4.3.5.1Fe2+TiO3
Group 7 - MULTIPLE OXIDES
AB2X4
Chromite7.2.3.3Fe2+Cr3+2O4
Group 38 - ANHYDROUS NORMAL PHOSPHATES, ARSENATES, AND VANADATES
(AB)3(XO4)2
Merrillite38.3.4.4Ca9NaMg(PO4)7
Group 51 - NESOSILICATES Insular SiO4 Groups Only
Insular SiO4 Groups Only with all cations in octahedral [6] coordination
Ringwoodite51.3.3.1(Mg,Fe2+)2SiO4
Wadsleyite (TL)51.3.4.1(Mg,Fe2+)2(SiO4)
Insular SiO4 Groups Only with cations in [6] and >[6] coordination
Majorite51.4.3a.5Mg3(Fe2+,Si,Al)2(SiO4)3
Group 65 - INOSILICATES Single-Width,Unbranched Chains,(W=1)
Single-Width Unbranched Chains, W=1 with chains P=2
Jadeite65.1.3c.1Na(Al,Fe3+)Si2O6
Unclassified Minerals, Mixtures, etc.
Akimotoite-(Mg,Fe2+)SiO3
'Albite-Anorthite Series'-
'Apatite'-
'Fayalite-Forsterite Series'-
Iron-Fe
'Maskelynite'-
'Orthopyroxene Subgroup'-

List of minerals for each chemical element

OOxygen
O Wadsleyite(Mg,Fe2+)2(SiO4)
O Ringwoodite(Mg,Fe2+)2SiO4
O MajoriteMg3(Fe2+,Si,Al)2(SiO4)3
O IlmeniteFe2+TiO3
O ChromiteFe2+Cr23+O4
O MerrilliteCa9NaMg(PO4)7
O JadeiteNa(Al,Fe3+)Si2O6
O Akimotoite(Mg,Fe2+)SiO3
NaSodium
Na MerrilliteCa9NaMg(PO4)7
Na JadeiteNa(Al,Fe3+)Si2O6
MgMagnesium
Mg Wadsleyite(Mg,Fe2+)2(SiO4)
Mg Ringwoodite(Mg,Fe2+)2SiO4
Mg MajoriteMg3(Fe2+,Si,Al)2(SiO4)3
Mg MerrilliteCa9NaMg(PO4)7
Mg Akimotoite(Mg,Fe2+)SiO3
AlAluminium
Al JadeiteNa(Al,Fe3+)Si2O6
SiSilicon
Si Wadsleyite(Mg,Fe2+)2(SiO4)
Si Ringwoodite(Mg,Fe2+)2SiO4
Si MajoriteMg3(Fe2+,Si,Al)2(SiO4)3
Si JadeiteNa(Al,Fe3+)Si2O6
Si Akimotoite(Mg,Fe2+)SiO3
PPhosphorus
P MerrilliteCa9NaMg(PO4)7
SSulfur
S TroiliteFeS
CaCalcium
Ca MerrilliteCa9NaMg(PO4)7
TiTitanium
Ti IlmeniteFe2+TiO3
CrChromium
Cr ChromiteFe2+Cr23+O4
FeIron
Fe Wadsleyite(Mg,Fe2+)2(SiO4)
Fe TroiliteFeS
Fe Ringwoodite(Mg,Fe2+)2SiO4
Fe IlmeniteFe2+TiO3
Fe ChromiteFe2+Cr23+O4
Fe Iron (var: Kamacite)(Fe,Ni)
Fe IronFe
Fe JadeiteNa(Al,Fe3+)Si2O6
NiNickel
Ni Iron (var: Kamacite)(Fe,Ni)

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

Late Cretaceous
66 - 100.5 Ma



ID: 691207
Kaskapau Formation

Age: Late Cretaceous (66 - 100.5 Ma)

Stratigraphic Name: Kaskapau Formation

Description: Marine

Lithology: Shale and siltstone

Reference: Prior, G.J.; Hathway, B.; Glombick, P.M.; Pana, D.I.; Banks, C.J.; Hay, D.C.; Schneider, C.L.; Grobe, M.; Elgr, R.; Weiss, J.A. Bedrock Geology of Alberta. AER/AGS Open File Report 2013-02. [4]

Late Cretaceous
66 - 100.5 Ma



ID: 3188050
Mesozoic sedimentary rocks

Age: Late Cretaceous (66 - 100.5 Ma)

Lithology: Siltstone,shale,sandstone

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]

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)
PRICE, G.D., PUTNIS, A., AGRELL, S.O. & SMITH, D.G.W. (1983): Wadsleyite, natural bbb-(Mg,Fe)2SiO4 from the Peace River meteorite. Canadian Mineralogist 21, 29-35.
Rubin, A.E. (1990) Kamacite and olivine in ordinary chondrites: Intergroup and intragroup relationships. Geochimica et Cosmochimica Acta 54: 1217-1232. (May 1990).
KUDOH, Y., INOUE, T. & ARASHI, H. (1996): Structure and crystal chemistry of hydrous wadsleyite Mg1.75SiH0.5O4: possible hydrous magnesium silicate in the mantle transition zone. Physics and Chemistry of Minerals 23, 461-469.
SMYTH, J.R., KAWAMOTO, T., JACOBSEN, S.D., SWOPE, R.J., HERVIG, R.L. & HOLLOWAY, J.R. (1997): Crystal structure of monoclinic hydrous wadsleyite β-(Mg,Fe)2SiO4. American Mineralogist 82, 270-275.
Grady, M.M., Pratesi, G. & Moggi-Cecchi, V. (2015) Atlas of Meteorites. Cambridge University Press: Cambridge, United Kingdom. 373 pages.

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