Organic Petrology Characterization of Shales from Bucaco Basin, Central Portugal: Preliminar Study

摘要

The organic matter of the grey mudstones from Vale da Mo Formation consists of type Ⅲ kerogen that originated from higher order land plants. Considering the vitrinite reflectance of this organic matter and an effective heating time of 40my (Permian duration) the palaeotemperature is estimated to be in the region of 120-130 ℃ (Bostick et al. 1979). Similar temperatures were obtained using the Barker method (Taylor et al. 1998).