Qidong (meteorite)

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Qidong
Type Chondrite
Class Ordinary chondrite
Group L/LL5-an
Composition Fa25.7,[1] Fe21.5, Fe-Ni metal abundance 4.7 wt%
Country China
Region Jiangsu province, Qidong County
Coordinates 32°5′N 121°30′E / 32.083°N 121.500°E / 32.083; 121.500Coordinates: 32°5′N 121°30′E / 32.083°N 121.500°E / 32.083; 121.500[2]
Observed fall Yes
Fall date July 2, 1982, 17:45 hrs.[1]
TKW 1275 g[1]

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.[1]

Composition and classification

This meteorite is intermediate between L and LL ordinary chondrites, possibly indicating formation on a separate parent body.[3] 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

  1. ↑ 1.0 1.1 1.2 1.3 A. L. Graham. Meteoritical Bulletin, No. 65. Meteoritics, vol. 22, page 160
  2. ↑ Meteoritical Bulletin Database: Qidong
  3. ↑ 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.

External links

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