Cometary Particles: Thin Sectioning and Electron Beam Analysis
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.
- Publication:
-
Science
- Pub Date:
- March 1986
- DOI:
- 10.1126/science.231.4745.1542
- Bibcode:
- 1986Sci...231.1542B
- Keywords:
-
- Chondrites;
- Electron Microscopy;
- Meteoritic Composition;
- Micrometeoroids;
- Debris;
- Petrography;
- Porous Materials;
- Sections;
- Lunar and Planetary Exploration; Comets;
- COMETS;
- PARTICLES;
- ANALYSIS;
- MICROMETEORITES;
- TECHNIQUES;
- PROCEDURE;
- ELECTRON MICROSCOPY;
- STRUCTURE;
- CHONDRITIC MATERIAL;
- PHOTOMICROGRAPHS;
- POROSITY;
- DESCRIPTION;
- CHARACTERISTICS;
- FEATURES;
- SOURCE;
- HYDRATION;
- SAMPLES;
- EXTRATERRESTRIAL;
- TEXTURE;
- COMPARISONS;
- COMPOSITION;
- ORIGIN;
- PETROGRAPHY