Mangilao, Guam

UNNAMED COVE SOUTH OF MANGILAO, GUAM

 

MANGILAO BEACH - Unknown Photographer

 

"The sample comes from a tiny cove on the east coast. There, the waves are much more violent than on the west coast, and beaches are almost non-existent. But this cove, just south of Mangilao, acts as a trap for almost floating in the ocean, from bamboo to refrigerators. All plastic matter, and there is a lot of plastic, is shredded into pieces. The idea of a sea of lastic shards floating in the northern Pacific Ocean must be true. The junk in this tiny cove is quite amazing, mostly plastic. Even golf balls from the nearby golf coarses are rendered smooth, void of dimples. The wave action, and the beach action just tears everything to pieces." Gary Foster

 

GRAIN DISTRIBUTION CHARACTERISTICS (AGI CHART)

International Space Station 400mm Photograph Image credit:  Image Science and Analysis Laboratory, NASA Johnson Space Center

GRAIN SHAPE CHARACTERISTICS

(PREPARED BY GAMMA ZETA CHAPTER , SIGMA GAMMA EPSILON, KENT STATE UNIVERSITY - AGI CHART))

Roundness is the degree of smoothing due to abrasion of sedimentary particles. It is expressed as the ratio of the average radius of curvature of the edges or corners to the radius of curvature of the maximum inscribed sphere.

The sphericity of a particle is: the ratio of the surface area of a sphere (with the same volume as the given particle) to the surface area of the particle.

     
     

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WEATHERED GOLF BALLS

 
 
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