Tue, 24 Sep 2019 03:57:48 GMT

Text

6174

6174

{ }

Anonymous

Anonymous

2

false

false

[ "article:topic-category", "coverpage:yes", "showtoc:yes", "license:ccbyncsa", "authorname:dsumner", "lulu@Geobiology@Dawn Sumner@University of California, Davis@Geobiology" ]

[ "article:topic-category", "coverpage:yes", "showtoc:yes", "license:ccbyncsa", "authorname:dsumner", "lulu@Geobiology@Dawn Sumner@University of California, Davis@Geobiology" ]

https://geo.libretexts.org/@app/auth/3/login?returnto=https%3A%2F%2Fgeo.libretexts.org%2FCourses%2FUniversity_of_California_Davis%2FUCD%253A_Geobiology_(Sumner)%2FText