Fluorescent organic matter in carbonaceous chondrites.
Fluorescent organic matter in carbonaceous chondrites was investigated using a microscope equipped with a fluorescence spectrophotometer. Fluorescent particles were observed in powdered CM2 carbonaceous chondrites (Y-74662, Y-7791198, and Murchison) without carbon enrichment by acid treatments. Although it was difficult to find fluorescent particles in powdered sample of C3 chondrites (ALH-77307, Y-791717, and Allende) without acid treatments, many fluorescent particles were observed after carbon enrichment by acid treatments. Fluorescence of coronene and shock-altered graphite were observed using the same microscope and the same conditions as those for carbonaceous chondrites.
Murae
T
T
Department of Earth and Planetary Sciences, Kyushu University, Hakozaki, Japan.
D000143:Acids / Q000737:chemistry; D005453:Fluorescence; D006108:Graphite / Q000032:analysis; D019110:Meteoroids; D008856:Microscopy, Fluorescence; D010616:Phenanthrenes / Q000032:analysis; D011083:Polycyclic Compounds / Q000032:analysis; D013050:Spectrometry, Fluorescence
D000143:Acids; D010616:Phenanthrenes; D011083:Polycyclic Compounds; C031181:phenanthrene; D006108:Graphite; C012256:coronene