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Peace River meteorite, Peace River, Alberta, Canada

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Latitude & Longitude (WGS84): 56° 7' 60'' North , 117° 55' 60'' 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


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.


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

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



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

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PRICE, R.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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