同位 #20307;比分析で探る太陽系形成時の蒸 #30330; #12539;凝縮過程
기관명 | NDSL |
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저널명 | Journal of the Mass Spectrometry Society of Japan |
ISSN | 1340-8097,1880-4225 |
ISBN |
저자(한글) | |
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저자(영문) | |
소속기관 | |
소속기관(영문) | |
출판인 | |
간행물 번호 | |
발행연도 | 2000-01-01 |
초록 | The isotope mass fractionations of various refractory inclusions observed in the primitive materials as well as its estimated thermal origin are reviewed, which are generally inconsistent with the origins estimated by other procedures. The temperature dependence was studied for the mass fractionation of condensates produced form Mg-silicate gas in the evaporation-condensation experiment. The 26 Mg/ 24 Mg values of the condensates with respect to the starting material fractionated both in the heavy and light isotopes. The theoretical relationship of the condensates showed good agreement with the experimental values. It has revealed that the amount of mass fractionation cannot be a simple indicator to judge whether the inclusion was a condensate or an evaporation residue. Rayleigh mass fractionation occurs under a restricted condition. It is necessary to know the actual fractionation coefficient in the nebula, in order to discuss the relationship between the mass loss of a depleted element and its isotope fractionation in the primitive planetary bodies in terms of the Rayleigh distillation process. |
원문URL | http://click.ndsl.kr/servlet/OpenAPIDetailView?keyValue=03553784&target=NART&cn=NART09939052 |
첨부파일 |
과학기술표준분류 | |
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ICT 기술분류 | |
DDC 분류 | |
주제어 (키워드) | Isotope mass fractionation,Primitive materials,Meteorites,Evaporation,Condensation |