1986•ScienceRequires access
Cometary Particles: Thin Sectioning and Electron Beam Analysis
J. P. Bradley, D. E. Brownlee
Open publisher page 156 citations
Abstract
Thin sections (500 to 1000 angstroms thick) of individual micrometeorites (5 to 15 micrometers) have been prepared with an ultramicrotome equipped with a diamond knife. Electron microscopic examination of these sections has revealed the internal structures of chondritic micrometeorites, and a subset of highly porous, fragile particles has been identified. Delicate meteoritic materials such as these are characteristic of debris from cometary meteors.