14 Quaternary Geology, Geomorphology (Posters)

Saturday, 5 May 2007
8:00 AM - 6:00 PM

NEW 1:24,000 SCALE GEOLOGIC MAP AND AGE CONTROL FOR SOUTHWESTERN WHIDBEY ISLAND, -FROM GREENBANK TO DOUBLE BLUFF, ISLAND CO., WA

Paper number: 14-5
Program: Technical Sessions
Time: 8:00 AM – 6:00 PM

Authors

  • Michael Polenz Presenting Author
    Washington Department of Natural Resources, Olympia, WA
  • Henry Schasse
    Washington State Department of Natural Resources, Division of Geology and Earth Resources, Olympia, WA
  • Bradley Petersen
    Washington State Department of Transportation, Port Angeles, WA

Abstract

We present a new surficial geologic map of the Freeland Quadrangle and the Whidbey Island portion of the Hansville Quadrangle. Our mapping includes a compilation of old and new age control data from the map area and an updated interpretation of the stratigraphy exposed east of Double Bluff, including the type sections of the Double Bluff and Whidbey Formations. We speculate on possible structural implications of new age control data and highlight new insights into sedimentary provenance and the paleoenvironmental and geomorphic development of southern Whidbey Island.