(U-Th)/He Dating of Uplift-Induced Cooling in a Complex Terrestrial Impact Structure: The Manicouagan Example
Abstract
(U-Th)/He methods were applied to preexisting Proterozoic rocks that comprise the central peaks at the 90 km Manicouagan impact structure in Quebec, to yield an "uplift” age in good agreement with the structure"s accepted 214 Ma U-Pb "formation” age.
- Publication:
-
Meteoritics and Planetary Science Supplement
- Pub Date:
- September 2012
- Bibcode:
- 2012M&PSA..75.5344B