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Zhaodong meteorite, Zhaodong Co., Suihua Prefecture, Heilongjiang Province (Manchuria; Dongbei Region), China

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Latitude & Longitude (WGS84): 45° 49' North , 125° 55' East
Latitude & Longitude (decimal): 45.8166666667, 125.916666667
Name(s) in local language(s): 肇东陨石, 肇东市, 绥化市, 黑龙江省, 中国
 
Chondrite (L4), shock stage S3, weathering grade W0-1.
Fell October 25, 1984.
Recovered weight: 42 kg.

After the appearance of a fireball, a small shower fell with 4 stones being recovered, the largest 25 kg. The meteorite contains fairly well-defined chondrules closely packed together within a dark matrix, but some incipient integration of chondrules into the matrix is observed. Olivine (Fa24.4) is well equilibrated, but pyroxene (Fs14-23) is still incompletely equilibrated. Most of the low-Ca pyroxene is orthopyroxene, but ~20% is monoclinic (clinopyroxene). Fe-Ni metal and troilite are frequently found near chondrule rims. Undulose extinction and fracturing in olivine account for the S3 shock level classification.

A cosmic ray exposure age of 15.7 Ma is reported.

Mineral List



9 entries listed. 3 valid minerals.

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References

Wei, H., Daode, W., Wenzhu, L., & Yongheng, C. (1986) Zaoyang and Zhaodong Chondrites: Abstracts and Program for the 49th Annual Meeting of the Meteoritical Society. LPI Contribution 600, p.216.

Wang, D. & Rubin, A. (1987) Petrology of Nine Ordinary Chondrite Falls from China: Meteoritics 22(1): 97-104. (March 1987).

Wei Hou and Mingzai Wang (1988): The dark inclusions in Zhaodong chondrite and Boxian chondrite and their genetic significance. Acta Petrologica Sinica 4(3), 74-79 (in Chinese with English abstract).

Wei Hou, Daode Wang, Hongsen Xie, and Mingzai Wang (1989): An experimental study on heating-melting of Zhaodong chondrite at high pressure. Acta Petrologica Sinica 5(2), 1-9 (in Chinese with English abstract).

Grady, M.M (2000). Catalogue of Meteorites (5/e). Cambridge University Press: Cambridge; New York; Oakleigh; Madrid; Cape Town. 689 pages.

Grady, M.M., Pratesi, G. & Moggi-Cecchi, V. (2015) Atlas of Meteorites. Cambridge University Press: Cambridge, United Kingdom. 373 pages.

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