Mid Cretaceous sand supply to offshore SW Nova Scotia: tectonic diversion of Labrador rivers during Naskapi Member deposition

Principal Investigator:

Dr. Georgia Pe-Piper, Saint Mary’s University

Start Date:      September 2015

End Date:       September 2017

This study will test the hypothesis that tectonic diversion of Labrador rivers during the Aptian resulted in sand supply through the Bay of Fundy to the Shelburne sub-basin, allowing shales to accumulate farther east in the Scotian Basin. It will also test the hypothesis that rivers from Maine contributed to the Shelburne sub-basin, despite the Yarmouth Arch. This will provide an assessment of the largest potential supply of reservoir sand to the deep water Shelburne sub-basin, allowing estimates of total volume of sand supply and its likely reservoir quality based on petrography. The likely reservoir quality of sands sourced from Maine would also be evaluated. It will provide improved information on basement tectonics and volcanism in the mid Cretaceous, both significant for thermal modelling of the basin. The results are expected to support or contradict the initial hypothesis of the diversion of the Sable River and to provide more regional information on sandstone provenance in the southwest Scotian Basin.