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The Chuckanut Formation in northwestern Washington (named after the Chuckanut Mountains, near Bellingham), its extension in southwestern British Columbia (the Huntingdon Formation), and various related formations in central Washington (including the Swauk, Roslyn, Manastash, and Chumstick) are fluvial sedimentary formations of Eocene age ...
Tucker, Dave (July 2010), "Whidbey Island glacial deposits", Northwest Geology Field Trips "Whidbey Island: Glacial erratics", Western Geo Hikes, January 29, 2008, archived from the original on 2015-06-10; Whidbey Island Glaciation (ESS 210) (PDF) (Field trip handbook), University of Washington Department of Earth and Space Sciences
The soil of Seattle, the county's (and state's) largest city, is approximately 80% glacial drift, most of which is Vashon glacial deposits , [7] and nearly all of the city's major named hills are characterized as drumlins (Beacon Hill, First Hill, Capitol Hill, Queen Anne Hill) or drift uplands (Magnolia, West Seattle).
The Puget Sound faults under the heavily populated Puget Sound region (Puget Lowland) of Washington state form a regional complex of interrelated seismogenic (earthquake-causing) geologic faults. These include (from north to south, see map) the: Devils Mountain Fault; Strawberry Point and Utsalady Point faults; Southern Whidbey Island Fault (SWIF)
Floodplain deposits consist of up to six distinct Touchet Beds, as well as loess silt and fine sand. These alluvial and loess deposits narrow as they approach the basalt valley walls, and thicken into the central valley, with a maximum sediment thickness of between 20 and 100 ft (6 and 30 m). Due to the elevation of the valley, only six of the ...
A morning walker takes in the erosion eating away on Tuesday at Town Neck Beach in Sandwich. A $15M sand replacement project is scheduled to start soon after a 20-year effort by federal, state and ...
Map of the Channeled Scablands. Bretz conducted research and published many papers during the 1920s describing the Channeled Scablands. His theories of how they were formed required short but immense floods – 500 cubic miles (2,100 km 3) – for which Bretz had no explanation.
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