Origin of the Penalver Formation in northwestern Cuba and its relation to K/T boundary impact event

1. Takayama, H.
2. Tada, R.
3. Matsui, T.
4. Iturralde-Vinent, M.A.
5. Oji, T.
6. Tajika, E.
7. Kiyokawa, S.
8. Garcia, D.
9. Okada, H.
10. Hasegawa, T.
11. Toyoda, K.