Petrographic, chemical and spectroscopic evidence for thermal metamorphism in carbonaceous chondrites I: CI and CM chondrites
Tonui E, Zolensky M, Hiroi T, Nakamura T, Lipschutz ME, Wang M-S and Okudaira K
Geochimica et Cosmochimica Acta
Volume 126, 1 February 2014, Pages 284–306