Slope failures and event sedimentation in Manicouagan impact crater lake, northeastern Canada: From the 1663 CE Charlevoix earthquake to the large reservoir impoundment.
Léo Chassiot and colleagues used a transect of sediment cores to unravel the environmental history of a 60-km-long fjord-type lake drowned by the impoundment of Manicouagan Reservoir, the Eye of Quebec in northeastern Canada. The sediment cores, collected between 140 m and 430 m deep, contain numerous event deposits generated from multiple landslides, some of which were related to the major 1663 Charlevoix earthquake. The records further highlight how the filling of the annular crater severely disrupted sedimentary regimes with the onset of organic-rich sediments.
Read the full article: geosociety.co/slope
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