Accretion … Erosion
Dynamic tug of war
pushing and pulling
tiny granules of rock to and from beaches.
Winds, waves, water levels;
Summer sands … Winter Sands
create jagged lines and unexpected turns.
Give geologic meaning to
coastal sands uniquely sculpted by
littoral cell location.
Caught between headlands;
shifting to and fro.
Time-travel duration short or long …
sifting sands measured by days, years;
and on through epochs of time.
Evidenced in shoreline change patterns
along dune-backs, coastal bluffs,
marine terraces, beaches, and sandy shores.
This week’s WordPress Photo Challenge: “Zig Zag”
Science behind this post-
Synthesis of information learned in Oregon Master Naturalist Class:http://justanothernatureenthusiast.org/2014/03/23/sands-of-time/
USGS Publication: Shoreline Change