Reanalysis of porous chondritic cosmic dust particles

Details Reanalysis of porous chondritic cosmic dust particles Reanalysis of porous chondritic cosmic dust particles

Oct 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001coska..31...79k&link_type=abstract

Contributions of the Astronomical Observatory Skalnate Pleso, vol. 31, no. 2, p. 79-89.

Astronomy and Astrophysics

Astronomy

2

Cosmic/Interplanetary Dust, Chemistry, Analytical Electron Microscope, Olivine, Pyroxene, Porous Chondritic Micrometeorites

Scientific paper

The particles reanalysed in this study were obtained from the NASA Johnson Space Center (JSC) Cosmic Dust Collection. The reanalysis of the particle L2008 P9 indicates typical assemblage of olivine - pyroxene. This sample can be classified as a chondritic porous IDP with the metallic phase grain containing essential amount of nickel and copper (the latter element is most probably due to instrumental artefact). The chemical composition of the particle L2011 S5 corresponds mostly to an assemblage of pyroxene phase - (Mg,Fe,Ni)SiO_3 roughly 75 wt.% and a sulphide phase - probably pyrrhotite (Fe,Ni)S about 25 wt.%.

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