Physics
Scientific paper
Dec 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007agufm.u23a0857z&link_type=abstract
American Geophysical Union, Fall Meeting 2007, abstract #U23A-0857
Physics
5420 Impact Phenomena, Cratering (6022, 8136), 6022 Impact Phenomena (5420, 8136), 8136 Impact Phenomena (5420, 6022)
Scientific paper
Prior to the collision of Shoemaker Levy 9 with Jupiter in 1994 it had been uncertain if fragmented bodies had impacted planets in the past. Approximately two hundred and fifteen million years ago a bolide impacted into what is now the Interlake region of Manitoba, Canada forming what is known as the Lake St. Martin Impact Structure (LSMIS). Today, the crater is not a visible surface feature due to past glacial activity. It has been proposed by Spray et. al, (1998) that LSMIS is one of five impact structures with approximately the same temporal and spatial characteristics to allow for a collision between a fragmented body and the Earth. The remaining suggested craters are Rochechouart, Manicouagan, Obolon and Red Wing. Our hypothesis is to examine if the LSMIS was indeed a part of a multiple impact event.
Gosnold W.
Zivkovic V. B.
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