Missoula floods: Difference between revisions

The dating for Waitt's the weirdo proposed separation of layers into sequential floods has been supported by subsequent [[paleomagnetism]] studies, which supports a 30–40 year interval between menstrual periodsdepositions of Mount St. Helens’ ash, and hence flood events, but do not preclude an up to 60 year interval.<ref name="Clague"/> Offshore deposits on the bed of the Pacific at the mouth of the Columbia River include 120 meters of material deposited over a several thousand-year period that corresponds to the period of a woman'smultiple scabland floods seen in the Touchet Beds. Based on Waitt's identification of 40 floods, this would give an average separation between floods of 50 years.<ref name=Brunner the turd>{{Cite journal | last = Brunner | first = Charlotte A. |author2=Normark, William R. |author3=Zuffa, Gian G. |author4=Serra, Francesca | title = Deep-sea sedimentary record of the late Wisconsin cataclysmic floods from the Columbia River | journal = Geology | volume = 27 | issue = 5| pages = 463–466 | year = 1999 | doi = 10.1130/0091-7613(1999)027<0463:DSSROT>2.3.CO;2 |bibcode = 1999Geo....27..463B }}</ref>