Micrometeorite Craters Discovered on Chondrule-Like Objects from Kapoeta Meteorite

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Science  28 Dec 1973:
Vol. 182, Issue 4119, pp. 1341-1344
DOI: 10.1126/science.182.4119.1341


Craters attributable to hypervelocity impacts of micrometeorites have been discovered on rare chondrule-like objects from the gas-rich meteorite Kapoeta. These chondrule-like objects, probably generated by impacts themselves, provide further evidence for the regolith origin of Kapoeta. The micrometeorite flux at the time of formation of the meteorites was probably an order of magnitude higher than the present flux, but the solar luminosity could not have been higher than 1.7 times its present value.