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TitlePalynological analysis of the two Labrador Shelf wells, Petro-Canada et al. Roberval C-02 and Total Eastcan et al. Roberval K-92, offshore Newfoundland and Labrador
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AuthorWilliams, G L
SourceGeological Survey of Canada, Open File 8183, 2017, 63 pages (10 sheets), https://doi.org/10.4095/299645
Year2017
PublisherNatural Resources Canada
Documentopen file
Lang.English
Mediaon-line; digital
File formatpdf
ProvinceEastern offshore region
AreaLabrador Shelf; Labrador Sea
Lat/Long WENS -56.0000 -52.0000 56.0000 54.0000
Subjectsfossil fuels; marine geology; paleontology; stratigraphy; petroleum resources; hydrocarbons; hydrocarbon potential; oil; groundwater; palynology; palynomorphs; biostratigraphy; paleoenvironment; correlations; lithostratigraphy; wells; well log analyses; core samples; microfossils; micropaleontology; fossil spores; miospores; pollen; vegetation; fossil assemblages; palynostratigraphy; Paleogene; Paleocene; Eocene; Oligocene; Neogene; Miocene; unconformities; bedrock geology; lithology; sedimentary rocks; dolomites; metamorphic rocks; gneisses; continental margins; continental shelf; Saglek Basin; Hopedale Basin; Gudrid Formation; Bjarni Formation; Kenamu Formation; Leif Member; Alexis Formation; Markland Formation; Cartwright Formation; Mokami Formation; Saglek Formation; Roberval C-02 well; Roberval K-92 well; dinoflagellata; dinoflagellates; Bylot Unconformity; Labrador Unconformity; Avalon Unconformity; Acritarchs; dinocysts; fungal spores; ferns; bisacates; cuttings samples; Phanerozoic; Cenozoic; Tertiary; Mesozoic; Cretaceous; Paleozoic; Precambrian
Illustrationslocation maps; photomicrographs; stratigraphic columns; well logs; bar graphs; biostratigraphic charts
ProgramBaffin Petroleum Systems, GEM2: Geo-mapping for Energy and Minerals
Released2017 01 24
Summary(Plain Language Summary, not published)
Two closely adjacent wells, Roberval K-92 and Roberval C-02, were drilled during the late 1970s and early 1980s in the Hopedale Basin on the Labrador Shelf. The two wells are only about 1800 metres apart, providing an ideal example of replicate sections and the opportunity to test the consistency of the palynomorph events recognized in other wells in the Late Cretaceous and Cenozoic of the region. The palynomorphs studied included fossil dinoflagellate cysts (dinocysts), miospores and acritarchs. Both wells encountered Upper Cretaceous and Cenozoic rocks. However, Lower Cretaceous and Santonian sections in the former well are absent in the latter. In the Tertiary, there is considerable variation in assemblages in the in the two wells. Roberval K-92 was drilled to test the hydrocarbon potential of Paleozoic dolomites, which had proved so productive at the nearby Gudrid H-55 well. But in the former wells, these rocks were water-bearing.
GEOSCAN ID299645