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Geology and Oil and Gas Bearing Potential of the East Canadian Continental Margin

  • MARINE GEOLOGY
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Abstract

Within the East Canadian continental margin, three oil and gas bearing regions have been identified from north to south: the Labrador Sea shelf, the margin of the Grand Banks of Newfoundland, and the Nova Scotia continental margin. In each of these regions, a number of sedimentary basins are distinguished and completely submerged. The following large sedimentary basins are distinguished on the Labrador Sea shelf: the Saglek, Hopdale, and Havke; on the margin of the Grand Banks of Newfoundland, the following basins are known: the Jeanne d’Arc, Flemish Pass, and Orphan. The Scotian Shelf distinguishes the Nova Scotia and Sable basins. It is noteworthy that at high latitudes, such as the Labrador Sea region, the age of productive sediments begins with more ancient rocks (since the Paleozoic) than in the basins to the low latitude (since the Mesozoic), due to which the stratigraphic range of oil and gas bearing in the high latitude basins is much wider. The oil and gas bearing potential in the entire region is mainly related to the continental slopes and turbidite deposits occurring within them. Late Jurassic and Early Cretaceous reservoirs will be the target sediments during deep drilling. Widespread Late Cretaceous and Early Tertiary formations with oil and gas potential are quite realistic, since they do not lie at deep horizons. The oil and gas bearing potential on the margins of basins is associated with Late Cretaceous and Tertiary sediments, alluvial fan deposits, and salt diapirs.

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Authors and Affiliations

  1. Shirshov Institute of Oceanology, Russian Academy of Sciences, 117997, Moscow, Russia

    A. Zabanbark & L. I. Lobkovsky

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  1. A. Zabanbark
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  2. L. I. Lobkovsky
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Correspondence to A. Zabanbark or L. I. Lobkovsky.

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Zabanbark, A., Lobkovsky, L.I. Geology and Oil and Gas Bearing Potential of the East Canadian Continental Margin. Oceanology 59, 591–602 (2019). https://doi.org/10.1134/S0001437019040192

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  • DOI: https://doi.org/10.1134/S0001437019040192

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