Floods, Faults, and Fire: Geological Field Trips in Washington State and Southwest British Columbia
The ten geological field guides presented in this volume explore key areas of the geologist’s Paradise that is Washington State and British Columbia. These trips investigate a wide variety of geologic and geographic terrains, from the dry steppe of the channeled scablands and Columbia River basalt group to the east, across the glaciated and forested Cascade arc and Coast Mountains, to the geologically complex islands in the west. This guidebook may be unique in that four of the trips utilize boats to reach remote field areas and are therefore rarely visited by geologists. Although these trips were guided during the 2007 GSA Cordilleran Section meeting, the guides were written to ensure that people can easily guide their own trips. The result provides an excellent source of exciting, thought-provoking geologic adventures for years to come.
Murrelets and molasse in the eastern San Juan Islands
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Published:January 01, 2007
Abstract
Sucia Island, part of the San Juan archipelago of western Washington, is underlain by sedimentary rocks of the Upper Cretaceous Nanaimo Group and Eocene Chucka-nut Formation (molasse). The Chuckanut overlies the Nanaimo along an important thrust fault. In addition to the geology, this trip is designed to provide excellent views of many species of sea and land birds that inhabit the offshore waters.
- Aves
- Cenozoic
- Chordata
- Chuckanut Formation
- Cretaceous
- Eocene
- guidebook
- island arcs
- Mesozoic
- molasse
- Nanaimo Group
- ocean floors
- ophiolite
- Paleogene
- road log
- San Juan County Washington
- San Juan Islands
- sedimentary rocks
- tectonics
- tectonostratigraphic units
- Tertiary
- Tetrapoda
- United States
- Upper Cretaceous
- Vertebrata
- Washington
- Sucia Island