--> Insights to a complex Mesozoic sedimentary system: 2D and 3D seismic imaging coupled with petrophysical data from deep wells, the Scotian Basin, Nova Scotia (Canada)

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Insights to a complex Mesozoic sedimentary system: 2D and 3D seismic imaging coupled with petrophysical data from deep wells, the Scotian Basin, Nova Scotia (Canada)

Abstract

The Mesozoic Scotian Basin off the coast of Nova Scotia, Canada is 800 km long and 200 km wide, with sediment thickness of up to 18 km. This passive continental margin preserves continuous sediments from the opening of the Atlantic Ocean as North America separated from Africa during the breakup of Pangea, beginning 250 Ma. The sedimentary record is well preserved displaying multiple depositional environments. The region has been explored in the last half century but the wireline and seismic data are limited. 2D and 3D seismic imaging coupled with wireline data from selected deep wells cutting into the Jurassic sediments, we have created a series of basin wide cross-sections. From SW to NE, these sections differentiate three domains, the inner, middle and outer, and demonstrate sedimentary environments, ranging from sabka to carbonate platforms to deltas. This study highlights the marked contrast, in depositional environments and stratigraphic complexity of the Scotian Basin. Research will develop 1D, 2D and 3D geomodeling of organic-rich facies deposition, paleoenvironmental controls, and maturity of source rocks.