Wednesday, February 20, 2013

US89 "Bitter Spring" landslide geology

AZGS Chief Geologist Jon Spencer says today's landslide on highway US89, just above the village of Bitter Spring, occurred in the Petrified Forest Member of the Chinle Formation [below].





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3 comments:

  1. Ron Schott3:31 PM

    Is there a good stratigraphic column available for this area?

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    Replies
    1. Anonymous6:22 PM

      http://myweb.cableone.net/gneal3965/lees%20strat.pdf

      Delete
  2. Lee Allison4:15 PM

    Ron, the following paper describes stratigraphy, but does not have a simple stratigraphic column.

    Repenning, C.A., Cooley, M.E., and Akers, J.P., 1969, Stratigraphy of the Chinle and Moenkopi Formations, Navajo and Hopi Indian Reservations, Arizona, New Mexico, and Utah: U.S. Geological Survey Professional Paper 521-B, 34 p., 2 plates.

    There are no 1:24,000 scale geologic maps published in this area.

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