S. A. Voropaev, N. V. Dushenko, V. S. Fedulov, A. V. Korochantsev
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Features of Degassing of the Murchison (CM2) Carbonaceous Chondrite in the Temperature Interval of 200–800°C
The degassing of Murchison carbonaceous chondrite (CM2 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 IR spectra of the Murchison meteorite were obtained after annealing at different temperatures and used to trace the thermal degradation. The comparison with the degassing of the ordinary chondrite Chelyabinsk (type LL5) revealed a significant increase in the release of carbonaceous gases for the Murchison meteorite.
期刊介绍：
Solar System Research publishes articles concerning the bodies of the Solar System, i.e., planets and their satellites, asteroids, comets, meteoric substances, and cosmic dust. The articles consider physics, dynamics and composition of these bodies, and techniques of their exploration. The journal addresses the problems of comparative planetology, physics of the planetary atmospheres and interiors, cosmochemistry, as well as planetary plasma environment and heliosphere, specifically those related to solar-planetary interactions. Attention is paid to studies of exoplanets and complex problems of the origin and evolution of planetary systems including the solar system, based on the results of astronomical observations, laboratory studies of meteorites, relevant theoretical approaches and mathematical modeling. Alongside with the original results of experimental and theoretical studies, the journal publishes scientific reviews in the field of planetary exploration, and notes on observational results.
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