Pipe Springs National Monument, Arizona (Geographic Keyword)

DOCUMENT Full-Text Linda Scott Cummings. Kathryn Puseman. Barbara Winsborough.

Two sediment samples collected from a black, organic layer exposed in a trench at Pipe Spring National Monument, Arizona, were examined for pollen, diatoms, and/or macrofloral remains. This layer is believed to represent an intact, natural organic stratum that formed when water ponded at the mouth of the spring. Pollen, macrofloral, and diatom analyses will be used to define environmental information and local vegetation at the time this stratum was deposited. Pollen analysis provides evidence...