Magnetite in CI Carbonaceous Meteorites: Origin by Aqueous Activity on a Planetesimal Surface
Abstract
The composition and morphology of magnetite in CI carbonaceous meteorites appear incompatible with a nebular origin. Mineralization on the meteorite parent body is a more plausible mode of formation. The iodine-xenon age of this material therefore dates an episode of secondary mineralization on a planetesimal rather than the epoch of condensation in the primitive solar nebula.
- Publication:
-
Science
- Pub Date:
- July 1979
- DOI:
- 10.1126/science.205.4404.395
- Bibcode:
- 1979Sci...205..395K
- Keywords:
-
- Carbonaceous Meteorites;
- Magnetite;
- Meteoritic Composition;
- Protoplanets;
- Radioactive Age Determination;
- Crystallization;
- Iodine Isotopes;
- Iron Oxides;
- Nebulae;
- Stellar Evolution;
- Water;
- Xenon Isotopes;
- Lunar and Planetary Exploration; Meteorites;
- METEORITES;
- CARBONACEOUS CHONDRITES;
- C1 CHONDRITES;
- MAGNETITE;
- ORIGIN;
- PARENT BODIES;
- AGES;
- DATING TECHNIQUES;
- IODINE;
- ELECTRON MICROSCOPY;
- XENON;
- ORGUEIL METEORITE;
- ALAIS METEORITE;
- IVUNA METEORITE;
- MORPHOLOGY