C-isotope stratigraphy, a calibration tool between ammonite- and magnetostratigraphy: the Valanginian-Hauterivian transition

by Hennig, Susanne, Bulot, Luc, Weissert, Helmut
Source: 1. Geologica carpathica 1. 1335-0552 1. Roč. 50, č. 1 (1999), s. 91-96