| Title | Geological map and notes on the Ordovician and Silurian Lith- and Biostratigraphy, Anticosti Island, Quebec |
| Download | Downloads |
| |
| Licence | Please note the adoption of the Open Government Licence - Canada
supersedes any previous licences. |
| Author | Bolton, T E |
| Source | Geological Survey of Canada, Paper 71-19, 1972, 44 pages (2 sheets), https://doi.org/10.4095/102433  Open Access |
| Year | 1972 |
| Publisher | Canada Department of Energy, Mines and Resources |
| Document | serial |
| Lang. | English |
| Maps | Publication contains 1 map |
| Map Info. | geological, 1:250,000 |
| Media | paper; on-line; digital |
| Related | This publication contains Anticosti Island, Quebec
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| File format | pdf |
| Province | Quebec |
| NTS | 12E; 12F/03; 12F/04; 12F/05; 12F/06; 12F/11; 12F/12; 12F/13; 12F/14; 22H/01; 22H/02; 22H/07; 22H/08; 22H/09; 22H/10; 22H/15; 22H/16 |
| Area | Anticosti Island |
| Lat/Long WENS | -65.0000 -61.5000 50.0000 49.0000 |
| Subjects | geochronology; industrial minerals; aggregates; bioherms; drillholes; fossil lists; fossil zones; radiometric dates; lithostratigraphy; biostratigraphy; richmondian; Becscie Formation; Chicotte
Formation; Ellis Bay Formation; Gun River Formation; Jupiter Formation; Vaureal Formation; Ordovician; Silurian |
| Illustrations | correlation charts |
| Released | 1972 01 01; 2015 08 27 |
| Abstract | The six formations detailed on the preliminary geological map of Anticosti Island, Quebec, represent an uninterrupted sequence of nearly flatlying rocks of Upper Ordovician to Middle Silurian ages. The
Upper Ordovician strata, divisible into two formations, Vaureal and Ellis Bay, are persistent, alternating calcareous and argillaceous units, each bearing distinct marine faunal assemblages. These rocks occupy the northwestern one-third of the
island. The succeeding Lower and Middle Silurian strata of the Becscie, Gun River and Jupiter Formations are more variable lithological units, the upperrnost Chicotte Formation, occurring only along the southern coast of the island, being everywhere
a massive, crinoidal limestone. These Silurian formations, of Llandoverian and early Wenlockian ages (Alexandrian and early Niagaran), are highly fossiliferous and divisible into several tentative faunal units. Characteristic fossils from each of the
six formations are illustrated in a preliminary fashion and grouped by formation. |
| GEOSCAN ID | 102433 |
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