Southern continuation of the Wakeham Group and Robe-Noire mafic suite (eastern Grenville Province) from hydrocarbon-targeted seismic reflection data on Anticosti Island, Quebec, Canada

A seismic reflection study on eastern Anticosti Island, Quebec, has identified the southern extension of the Mesoproterozoic Wakeham Group and Robe-Noire mafic sills, previously exposed only along the north shore of the Gulf of St. Lawrence. The research used hydrocarbon-targeted seismic data to image subparallel reflections below the Paleozoic St. Lawrence Platform, revealing a reflective unit characterized by broad open folds, subparallel markers, and east-northeast-dipping faults. This discovery extends geological understanding of the eastern Grenville Province's basement structure, providing new insights into the region's tectonic history.

Pinet, N. (2016). Southern continuation of the Wakeham Group and Robe-Noire mafic suite (eastern Grenville Province) from hydrocarbon-targeted seismic reflection data on Anticosti Island, Quebec, Canada. Canadian Journal of Earth Sciences, 53(9), 875–882. https://doi.org/10.1139/cjes-2016-0011