On volatilization in vacuum of the elements from the planet surface soil melts |
| |
| Authors: | M D Nussinov Yu B Chernyak |
| |
| Institution: | (1) Space Research Institute, U.S.S.R. Academy of Sciences, Moscow, U.S.S.R. |
| |
| Abstract: | Endogeneous and exogeneous events resulting in the appearance of the large volumes of melted substance on the lunar surface should be accompanied by volatilization of some elements from melts in vacuum 1]. However, it is not clear up to now whether volatilization on the Moon has indeed occurred and how the lower (in comparison with the Earth) content of some elements (Na, K and others) in lunar soil can be explained. There are contradictory opinions on these problems in publications (O'Hara, Ringwood and others) 2]. The numerous laboratory investigations of the similar processes are insufficient 3–15; 36] for interpretation of the results for the lack of an adequate physical model and the theory of these processes and also due to the narrow range of the parameters used (T, p, τ) and the experimental regimes. In the present paper a physical model is developed, which is based on experimental data; together with a theory of the process of volatilization of the volatile components of rock melts in vacuum, taking into account an adsorption of the residual atmosphere gases; all these allow us to interpret such processes successfully. As a result, some preliminary conclusions have been drawn about such phenomena on the Moon and their laboratory simulation. |
| |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ |
|
