Aqueous alteration of meteorite parent bodies: Possible role of unfrozen water and the Antarctic meteorite analogy
Based on oxygen isotrophy the alteration of CM2 chondrites could occur at or near O C (273 K). Such a scenario can be understood if C chondrite parent bodies evolved as rock/ice mixtures that contained unfrozen (mobile or quasi-liquid below 273K) pure water, a well known phenomenon in cold soils on...
| Main Author: | |
|---|---|
| Format: | Other/Unknown Material |
| Language: | unknown |
| Published: |
1984
|
| Subjects: | |
| Online Access: | http://ntrs.nasa.gov/search.jsp?R=19850007308 |
| Summary: | Based on oxygen isotrophy the alteration of CM2 chondrites could occur at or near O C (273 K). Such a scenario can be understood if C chondrite parent bodies evolved as rock/ice mixtures that contained unfrozen (mobile or quasi-liquid below 273K) pure water, a well known phenomenon in cold soils on Earth. The importance of unfrozen water diagenesis in C chondrite history can be tested by a combined program of experimental simulations and petrologic study of analogous features developed by weathering of meteorites in or an Antarctic ice. |
|---|