Chevron (land form)
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- See also: chevron (disambiguation)
A chevron is a wedge-shaped sediment deposit observed on coastlines around the world. It is hypothesised by the Holocene Impact Research Group that these formations are composed of material from the ocean floor; a tsunami from an submarine slide or meteorite impact lifts sediment up and carrys it hundreds of miles until depositing it on coastlines to create the formations. Chevrons are of particular interest to geologists for their unique composition of ocean microfossils. The majority of chevrons can be found in Australia, but others are concentrated around the coastline of major ocean craters around the world. For instance there are chevrons in Hither Hills State Park on Long Island and in Madagascar.
Also, like the NY Times article says, such formations are hypothesised to be created from erosion, glaciers, and other natural phenomena.
[edit] References
New York Times Science Times Article "Ancient Crash, Epic Wave" (11.14.06)
Chevron-shaped Accumulations Along the Coastlines of Australia as Potential Tsunami Evidences? Science of Tsunami Hazards (2003), Vol. 21, #3, p 174.
