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- Title
Features of Degassing of the Allende (CV3) Carbonaceous Chondrite in the Temperature Interval of 200–800°C.
- Authors
Voropaev, S. A.; Dushenko, N. V.; Krivenko, A. P.; Fedulov, V. S.; Ryazantsev, K. M.; Korochantsev, A. V.
- Abstract
The degassing of Allende carbonaceous chondrite (CV3 type) was studied using a setup specially designed for this purpose. The experiments involved stepwise heating (without gas accumulation) and isothermal annealing of meteorite samples with the composition of released gases determined through gas chromatography methods in the temperature range from 200 to 800°C. To account for sorbed water, degassing at 50 and 110°C was additionally analyzed. The Raman and IR spectra of both the primary Allende substance and the substance after its annealing at three temperatures (200, 500, and 800°C) were obtained. These spectra were used to trace the thermal transformation of the substance of the meteorite's parent body and estimate the maximum temperature of metamorphism. The results were compared with the degassing of the Murchison carbonaceous chondrite of another type (CM2).
- Subjects
RAMAN spectroscopy; GAS chromatography; TEMPERATURE; METEORITES
- Publication
Solar System Research, 2023, Vol 57, Issue 6, p592
- ISSN
0038-0946
- Publication type
Article
- DOI
10.1134/S0038094623050076