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TitleOn the deposition of sediments in craters
AuthorBeals, C S; Hitchen, A
SourcePublications of the Dominion Observatory vol. 39, no. 4, 1970, 14 pages,
PublisherCanada Department of Energy, Mines and Resources (Ottawa, Canada)
Mediapaper; on-line; digital
File formatpdf
ProvinceQuebec; Ontario
Subjectsregional geology; structural geology; craters; depositional models; meteorite craters; sedimentary basins; stratiform deposits; Holleford Crater; Mecatina Crater
Released1970 01 01; 2018 11 19
AbstractScale mode! experiments in sedimentation have been carried out using a small artificial crater with depth-to-diameter ratio corresponding to an impact crater a mile in diameter. The experiments were performed under deep water conditions using both mechanical and chemical means of deposition. The results indlcated that the crater was obliterated after the deposition of a depth of sediments approximately three times the floor-to-rim depth of the crater. Since an impact crater of one mile diameter is about 800 feet deep, the experiments indicated that a crater of this size would be obliterated by sediments of very moderate depth (2400 feet). Profile studies of the mode! crater made during the process of sedimentary deposition, have revealed interesting analogies wtth the Holleford crater (known to be an ancient meteorite crater filled with Paleozoic sediments) and with the Mecatina crater, the origin and subsequent history of which are still uncertain.