Chondrules: An Origin by Impacts between Dust Grains

Details Chondrules: An Origin by Impacts between Dust Grains Chondrules: An Origin by Impacts between Dust Grains

Nov 1973

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1973sci...182..920l&link_type=abstract

Science, Volume 182, Issue 4115, pp. 920-922

Physics

Scientific paper

A barred chondrule in the Ngawi meteorite contains a magnetite spherule embedded in it. The collision between these two objects fractured and partially remelted the chondrule, an indication that the impact velocity was 105 to 106 centimeters per second. This observation supports Cameron's and Whipple's recent predictions that grains achieved high velocities in the nebula and that the resulting impacts provide a suitable chondrule-forming mechanism.

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