Qidong (meteorite)
{{Infobox meteorite
|Name= Qidong
|Image=
|Image_caption=
|Type= Chondrite
|Class= Ordinary chondrite
|Group= L/LL5-an
|Structural_classification=
|Composition= Fa25.7,[http://articles.adsabs.harvard.edu/cgi-bin/nph-iarticle_query?bibcode=1987Metic..22..157G&db_key=AST&page_ind=3&plate_select=NO&data_type=GIF&type=SCREEN_GIF&classic=YES A. L. Graham. Meteoritical Bulletin, No. 65. Meteoritics, vol. 22, page 160] Fe21.5, Fe-Ni metal abundance 4.7 wt%
|Shock=
|Weathering=
|Country= China
|Region= Jiangsu province, Qidong County
|Lat_Long= {{coord|32|5|N|121|30|E|display=inline,title}}{{metbull|18907|Qidong}}
|Observed_fall= Yes
|Fall_date= July 2, 1982, 17:45 hrs.
|Found_date=
|Image2=
|Image2_caption=
}}
Qidong is a L/LL5-an chondrite meteorite fallen in 1982 in China. After detonation a single individual specimen was found in the field. Other circumstances of fall and recovery were not reported.
Composition and classification
This meteorite is intermediate between L and LL ordinary chondrites, possibly indicating formation on a separate parent body.Kallemeyn G. W., Rubin A. E., Wang D., and Wasson J. T. Ordinary chondrites: Bulk compositions, classification, lithophile-element fractionations, and composition-petrographic type relationships. 1989, Geochim. Cosmochim. Acta, 53, 2747–2767. Its fayalite, ferrosilite place this stone at the extreme higher end of L chondrites, the metal content is typical of LL chondrites and the Co abundance in matrix kamacite (15 mg/g) is at the extreme lower end of LL chondrites.
See also
Notes
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External links
- [http://www.meteoritestudies.com/protected_QIDONG.HTM Meteorite Studies, a photographic classification: Qidong]
{{Meteorites}}
{{Meteorites by name}}