 EPOD - a service of USRA

The Earth Science Picture of the Day (EPOD) highlights the diverse processes
and phenomena which shape our planet and our lives. EPOD will collect and
archive photos, imagery, graphics, and artwork with short explanatory
captions and links exemplifying features within the Earth system. The
community is invited to contribute digital imagery, short captions and
relevant links.


 Puget Sound Feeder Bluff

   December 30, 2020

    Puget Sound Feeder Bluff

   Photographer:  Rebecca Roush
   Summary Author:  Rebecca Roush

   The  shoreline of  Puget Sound in the state of Washington has
   many  bluffs of sediment ( till) deposited by multiple
    glacial advances that began around two million years ago and ended
   about 15,000 years ago. When a bluff sheds soil to the beach below it's
   called a  feeder bluff, as seen above at Southworth Point. Feeder
   bluffs continuously build beaches as they deposit  sediment,
   resulting in the ongoing integrity of natural habitats and
   revitalization of beaches. Attempts to forestall this process by
   building bulkheads and the like are sometimes called  armoring. This
   disrupts the natural beach-building process. As our climate continues
   to change and the  sea levels rise, beaches where there's no
   armoring stand a better chance of surviving. Photo taken November 2,
   2020.

   Photo Details: Camera: Samsung SM-G986U; Exposure Time: 0.0057s
   (1/174); Aperture: ƒ/2.0; ISO equivalent: 25; Focal Length (35mm): 28
     * Southworth Point, Washington Coordinates:  47.5112435,
       -122.4960871

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Geology Links

     *  Earthquakes
     *  Geologic Time
     *  Geomagnetism
     *  General Dictionary of Geology
     *  Mineral and Locality Database
     *  Mohs Scale of Mineral Hardness
     *  This Dynamic Earth
     *  USGS
     *  USGS Ask a Geologist
     *  USGS/NPS Geologic Glossary
     *  USGS Volcano Hazards Program

-
   Earth Science Picture of the Day is a service of the  Universities
   Space Research Association.

https://epod.usra.edu
 
