Back to Search
Start Over
Tertiary Basalts of Baffin Island: Field Relations and Tectonic Setting
- Source :
- Canadian Journal of Earth Sciences. 8:248-258
- Publication Year :
- 1971
- Publisher :
- Canadian Science Publishing, 1971.
-
Abstract
- This paper describes the field relations of Tertiary basalts which are preserved as small patches intermittently along the coast for 90 km northwest from Cape Dyer, Baffin Island. The flat-lying, subaerial lavas generally rest directly on the Precambrian basement but in some localities a thin sequence of terrestrial sediments intervenes between the basement and the volcanics. Where the sediments occur, the overlying volcanics tend to be divisible into a lower unit of subaqueous volcanic breccia and an upper sequence of subaerial flows. In age, stratigraphic position and magma-type, these volcanics strongly resemble those of the basalt province of west Greenland. A model is presented for the generation of both provinces in a single volcanic episode, related to the opening of Labrador Sea – Baffin Bay by continental drift.
Details
- ISSN :
- 14803313 and 00084077
- Volume :
- 8
- Database :
- OpenAIRE
- Journal :
- Canadian Journal of Earth Sciences
- Accession number :
- edsair.doi...........37c83ca1f8d99b334b26816b466dd4b4