Primitive material surviving in chondrites - Refractory inclusionsThe refractory inclusions embedded in the matrix of many carbonaceous and some ordinary or enstatite chondrites exhibit mineralogical and bulk composition characteristics which correlate with the first, or highest-temperature, condensation products that have been predicted to form from a hot, but cooling, solar nebula. These inclusions' isotopic compositions indicate presolar nucleosynthetic processes that have contributed to the production of the elements from which the solar system was formed; subsequently, the inclusions experienced melting, recrystallization, and alteration histories that have obscured the formation processes.
Document ID
19890040137
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Macpherson, Glenn J. (Smithsonian Institution Washington, DC, United States)
Wark, D. A. (Arizona, University Tucson, United States)
Armstrong, John T. (California Institute of Technology Pasadena, United States)