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A possible new impact structure near Lac de la Presqu‘île, Québec, Canada
Author(s) -
Higgins Michael,
Tait Larry
Publication year - 1990
Publication title -
meteoritics
Language(s) - English
Resource type - Journals
eISSN - 1945-5100
pISSN - 0026-1114
DOI - 10.1111/j.1945-5100.1990.tb01003.x
Subject(s) - geology , impact crater , impact structure , erosion , peninsula , paleontology , geochemistry , archaeology , physical geography , geomorphology , geography , physics , astrobiology
— Lac de la Presqu'île is a sub‐circular lake, about 7 km in diameter with a prominent central peninsula. The shape of this lake and the occurrence of shatter cones to the east suggest that an impact created a crater with an original diameter of at least 12 km (Tait, 1990). Deep erosion of the structure suggests that it was formed in the distant past, at least several hundred million years ago.