Thermal metamorphism.
Abstract
Most chondrites have experienced thermal metamorphism, resulting in changes in texture, mineralogy and possibly chemical composition. The physical conditions for metamorphism range from approximately 400 to 1000°C at low lithostatic pressure. Metamorphism may have resulted from decay of short-lived radionuclides, electromagnetic induction or accretion of hot materials. Several thermal models for chondrite parent bodies have been proposed. The least metamorphosed type 3 chondrites probably carry the most information about the early solar system, but even these have been affected to some degree by thermal processing.
- Publication:
-
Meteorites and the Early Solar System
- Pub Date:
- 1988
- Bibcode:
- 1988mess.book..102M
- Keywords:
-
- Chondrites;
- Metamorphic Rocks;
- Solar System;
- Meteoritic Composition;
- Mineralogy;
- Recrystallization;
- Lunar and Planetary Exploration;
- Chondrites: Parent Bodies;
- Chondrites: Thermal Evolution