Okamura, S, Tomioka, A, Katoh, T, Tatsuda, S, Azuma, T, Sakai, T. Chloritized rocks associated with serpentinite from the Kamuikotan Tectonic Belt, North Japan; implications for source and manufacturing of the beads and stone tools from the Paleolithic - Jomon period. Learning from Our Ancestors: Using Modern Earth Science Methods to Understand Ancient Practices Posters, AGU Fall Meeting 2018, GH11B-0916. 2018