[Rockhounds] Missoula Megafloods and Clovis cache at Wenatchee, Washington

Paul etchplain at att.net
Wed Dec 14 18:22:05 PST 2022


Saw this paper posted elsewhere on the Internet. It is an interesting paper
because it has direct evidence as to whether PaleoIndians were around to
witness any of the Columbia River megafloods. It describes and discusses
the implications of  a Clovis Site discovered within loess that blankets
megaflood deposits, Pangborn bar, along the Columbia River. Dr. Waitt
concludes: "Clovis people came five and a half millennia after the early
gigantic Missoula floods, two and a half millennia after the last small
Missoula flood, and two millennia after the glacial Lake Columbia flood."

The paper is:

Waitt, R.B., 2016. Megafloods and Clovis cache at Wenatchee,
Washington. Quaternary Research, 85(3), pp.430-444.
http://www.fop.cascadiageo.org/pacific_northwest_cell/2018/Background_Literature/Waitt2016WenatcheeMegafloods.pdf
https://iafi.org/iafi/wp-content/uploads/Waitt_2016_WenatcheeClovis.pdf

A related paper is:

Balbas, A.M., Barth, A.M., Clark, P.U., Clark, J., Caffee, M.,
O’Connor, J., Baker, V.R., Konrad, K. and Bjornstad,
B., 2017. 10Be dating of late Pleistocene megafloods and
Cordilleran Ice Sheet retreat in the northwestern
United States. Geology, 45(7), pp.583-586.
http://www.fop.cascadiageo.org/pacific_northwest_cell/2018/Essential_Literature_And_Guides/BalbasEt2017AlMissoulFloodChronologyGeology.pdf
https://iafi.org/iafi/wp-content/uploads/Balbas2017-Missoula-Flood-Chronology.pdf

A review paper is:

O’Connor, J.E., Baker, V.R., Waitt, R.B., Smith, L.N., Cannon,
  C.M., George, D.L. and Denlinger, R.P., 2020. The Missoula
and Bonneville floods—A review of ice-age megafloods in the
Columbia River basin. Earth-science reviews, 208, p.103181.
https://archimer.ifremer.fr/doc/00624/73634/
https://archimer.ifremer.fr/doc/00624/73634/73074.pdf

Ice Age floods - publications
https://www.iafi.org/general/#geptech
https://www.iafi.org

Yours,

Paul H.



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