Chemical composition and cosmogenic records in the recently fallen Dergaon meteorite

Shukla, P. N. ; Shukla, A. D. ; Rai, V. K. ; Murty, S. V. S. ; Bhandari, N. ; Duorah, K. ; Goswami, J. N. (2002) Chemical composition and cosmogenic records in the recently fallen Dergaon meteorite Meteoritics & Planetary Science, 37 (S5). A130. ISSN 1086-9379

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Official URL: http://www.uark.edu/~meteor/37-5toc.htm

Abstract

Four fragments of a meteorite, which fell on March 2, 2001, at 16:40 hrs. local time near Dergaon town (Balidua, 10.3 kg; Koilaghat, 1.4 kg and Majuli, two fragments,≤ 1 kg each), Assam, India, were recovered after two loud explosions were heard. Petrological studies carried out at the Gauhati University indicated that Dergaon is a H5 chondrite. We have studied the two largest fragments (Balidua and Koilaghat) for chemical composition, noble gas isotopes, nuclear tracks and cosmogenic radionuclides.

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