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Book Chapter

Presolar grains

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Hoppe,  P.
Particle Chemistry, Max Planck Institute for Chemistry, Max Planck Society;

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Citation

Hoppe, P. (2017). Presolar grains. In W. M. White (Ed.), Encyclopedia of Geochemistry.


Cite as: https://hdl.handle.net/11858/00-001M-0000-002D-BC13-F
Abstract
Presolar grains are nanometer- to micrometer-sized dust grains that are found in small quantities in primitive meteorites , interplanetary dust particles (IDPs), and in cometary matter. They are older than our Solar System and formed in the winds of evolved stars and in the ejecta of stellar explosions, as evidenced by large isotopic abundance anomalies .