The zonal scheme of the Givetian-Frasnian boundary interval in Timan-Northern Urals region was detailed according to higher plants spores. Palynological zones were correlated with faunal, including conodont — orthostratigraphic group Devonian. correlation identified critical boundaries development plant communities divisions’ borders International Stratigraphic Scale series and stages, establis...

Depositional environment and source potential of the different organic-rich levels of Devonian age (up to 990m thick) from the onshore EC-1 well (Southern Tunisia) were investigated based on the analysis of more than 130 cutting samples by different geochemical techniques (Rock-Eval pyrolysis, GC-MS). The obtained results including Rock Eval Pyrolysis data and biomarker distribution (terpanes, ...

Stearns, C. and Van der Voo, R., 1988. Dual polarity magnetizations from the Upper Devonian McAras Brook Formation, Nova Scotia, and their implications for the North American apparent polar wander path. Tectonophysics, 156: 179-191. Thermal demagnetization of 57 samples from four lava flows of the Upper Devonian McAras Brook Formation, sampled along the Northumberland Strait in northern Nova Sc...