Rhenium-osmium geochronology of the Toarcian Posidonia Shale, SW Germany van Acken, D. ; Tütken, T. ; Daly, J. S. ; Schmid-Röhl, A. ; Orr, P. J. Abstract Publication: Palaeogeography Palaeoclimatology Palaeoecology Pub Date: November 2019 DOI: 10.1016/j.palaeo.2019.109294 Bibcode: 2019PPP...53409294V