7/10 tenths of the Earth’s surface is water. Take the current impact maps of Europe and North America, and apply them to the Oceans. That is what this team is dealing with – cutting edge science. Besides the earlier end pleistocene ice melt, and then the breaching of the eastern ice dams during the HSI, there is also the effects of the Great Atlantic impact Mega-Tsunami ca 1,000 BCE to be examined, plus the events Abbott, Bryant et al hve been working on. The dating for the data is nearly all weak to non-existent on bothe sides of the Atantic, Abbott’s work up the Hudson excepted. Pacific Ocean work is in worse shape, except for Bryant and the HSIWG’s work with no consideration given to the effects of end Holocene melts on the Pacific current flows. Gas bubbles exploding is an interesting explanation for the Carolina Bays. If true, then the good news is that commerically exploitable natural gas deposits may still exist. The bad news is that simulaneity of the Bays may be linked to seismic activity in the region, which raises concerns. Someone needs to be a central clearing house for Earth impact data and research. The petroleum geologists have this ability, and Texas trains them, so Arizona faces some real competition in this field of research. All I know is that this work has to be done, and be done as quickly as possible. Morrison’s hypothesis that Moon impact data could be used as a proxy for estimating the Earth’s impact rate appears not o be vaild.