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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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ELEPHANT ROCK |
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ELEPHANT ROCK WITH ME FOR SCALE! (Click on Image for High Resolution Version) |
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WHITE DOMES TRAIL |
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SAMPLE COLLECTION SITE (BACKGROUND IMAGE) |
ABSTRACT IMAGE |
CROSSBEDDED SANDSTONE |
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THE CABINS |
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ANSEL ADAMS #1 |
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ANSEL ADAMS #2 |
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RANDOM ROADSIDE STOP |
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RIPPLES WITH ROCK |
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ASSORTED GEOLOGIC (AND ORGANIC) FEATURES I FOUND IN VALLEY OF FIRE |
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