| Title | Siliceous microfossils and agglutinated foraminifera from the Upper Cretaceous Smoking Hills and Mason River formations in the Smoking Hills area, Northwest Territories |
| Download | Downloads |
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| Licence | Please note the adoption of the Open Government Licence - Canada
supersedes any previous licences. |
| Author | Diaz, J F; Galloway, J M ; Bringué, M; Pedersen, P K; Grasby, S E |
| Source | Geological Survey of Canada, Open File 8716, 2020, 21 pages, https://doi.org/10.4095/325466  Open Access |
| Image |  |
| Year | 2020 |
| Publisher | Natural Resources Canada |
| Document | open file |
| Lang. | English |
| Media | on-line; digital |
| File format | pdf |
| Province | Northwest Territories |
| NTS | 97C/06; 97C/13 |
| Area | Smoking Hills; Horton River; Cape Bathurst; Franklin Bay; Canadian Arctic |
| Lat/Long WENS | -127.0000 -126.9667 69.4833 69.4500 |
| Lat/Long WENS | -127.1167 -127.1167 69.9833 69.9667 |
| Subjects | paleontology; stratigraphy; Nature and Environment; Science and Technology; Upper Cretaceous; Maastrichtian; Campanian; micropaleontology; microfossils; diatoms; fossil assemblages; fossil distribution,
strata; fossil lists; fossil zones; type sections; bedrock geology; lithology; sedimentary rocks; mudstones; jarosite; sandstones; field work; correlations; Smoking Hills Formation; Mason River Formation; Foraminifera; Radiolarians;
Silicoflagellates; Sponges; Spicules; Horton-Anderson Plains; Sverdrup Basin; Western Interior Seaway; Phanerozoic; Mesozoic; Cretaceous |
| Illustrations | location maps; tables; stratigraphic columns |
| Program | GEM2:
Geo-mapping for Energy and Minerals TransGEM |
| Released | 2020 04 23 |
| Abstract | Five microfossil groups are herein described from the Upper Cretaceous Smoking Hills and Mason River formations in the Horton River area (Northwest Territories). Microfossil assemblages from the Smoking
Hills Formation are dominated by radiolarians and foraminifera whereas the Mason River Formation mainly contains diatoms, silicoflagellates, and sponge spicules. These microfossil groups have been reported before in these units and age-equivalent
strata from the Canadian Arctic except for radiolarians. The radiolarian assemblage described in this study represents one of the most diverse and abundant assemblages reported in Campanian-Maastrichtian rocks in North America and can be used to
reconstruct the climatic, paleoceanographic, and paleobiogeographic conditions that took place at the end of the Cretaceous Period. This Open File documents the stratigraphic occurrence of the microfossil types. |
| Summary | (Plain Language Summary, not published)
Five microfossil groups are described from the Upper Cretaceous Smoking Hills and Mason River formations in the Horton River area (Northwest
Territories): radiolarians, foraminifera, diatoms, silicoflagellates, and sponge spicules. The radiolarian assemblage described in this study represents one of the most diverse and abundant assemblages reported in Upper Cretaceous rocks from North
America. These microfossils can be used for stratigraphic investigations and to reconstruct the environmental conditions during the end of the Cretaceous Period. |
| GEOSCAN ID | 325466 |
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