Kerogen of Toarcian Shales of the Paris Basin: A Study of its Maturation by Flash Pyrolysis Techniques Back to all publications Publication date 1 January 1981 Reference G. van Graas, J.W. de Leeuw, P.A. Schenck and J.R. Haverkamp, Kerogen of Toarcian Shales of the Paris Basin: A Study of its Maturation by Flash Pyrolysis Techniques, Geochim. Cosmochim. Acta 45, 2465-2474 (1981)