Changes to the composition and mineralogy of interplanetary dust particles by terrestrial encounters
| Autor: | G. J. Flynn |
|---|---|
| Rok vydání: | 1994 |
| Předmět: |
education.field_of_study
Population Astrophysics::Cosmology and Extragalactic Astrophysics Contamination Atmospheric sciences complex mixtures respiratory tract diseases Astrobiology Interplanetary dust cloud Atmospheric entry Physics::Space Physics Astrophysics::Solar and Stellar Astrophysics Astrophysics::Earth and Planetary Astrophysics Formation and evolution of the Solar System education Chemical composition Stratosphere Astrophysics::Galaxy Astrophysics Geology Thermal pulse |
| Zdroj: | AIP Conference Proceedings. |
| ISSN: | 0094-243X |
| DOI: | 10.1063/1.46529 |
| Popis: | Individual interplanetary dust particles can experience alteration or contamination by a variety of mechanisms during Earth encounter. Velocity selection effects produce a stratospheric dust population different from the interplanetary dust population. The thermal pulse experienced during Earth atmospheric entry is, in some cases, sufficient to alter the mineralogical and chemical properties of the interplanetary dust recovered from the Earth’s stratosphere. Stratospheric residence or the collection and curation process is known to produce a surface contamination of S and possibly other elements. A thorough understanding of the nature and magnitude of these contamination and alteration processes is essential if the properties of the interplanetary dust, and of the parent bodies of the dust and of the primitive solar nebula, are to be inferred. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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