Chondrules: An Origin by Impacts between Dust Grains
- 30 November 1973
- journal article
- other
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 182 (4115) , 920-922
- https://doi.org/10.1126/science.182.4115.920
Abstract
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.Keywords
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