CR-TYPE CHONDRITE FOR AIRBURST EVENT OVER EAST ANTARCTICA 430 KA AGO

Authors :: Goderis, S.
Ginneken, M.
Hibiya, Y.
Hobin, K.
Grigoryan, R.
Greenwood, R. C.
Maldeghem, F.
Chernonozhkin, S. M.
Vanhaecke, F.
Debaille, V.
Philippe Claeys
Chemistry
Analytical, Environmental & Geo-Chemistry
Faculty of Sciences and Bioengineering Sciences
Earth System Sciences
Source :: Web of Science
Publication Year :: 2022
Publisher :: Meteoritical Society, Tucson, Arizona, USA, 2022.
Abstract: Introduction: The geological record contains scarce evidence for airbursts, the most common type of hypervelocity impact events. During airbursts, impactors of 50 to 150 m in size are fragmented and vaporized during atmospheric entry, as exemplified by the Tunguska and Chelyabinsk events [1]. In recent years, meteoritic debris resulting from such low-altitude airbursts has been found on various locations across Antarctica (cf. summary in [2]). Fine-grained (

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