VERDE RIVER NEAR COTTONWOOD AND TUZIGOOT, ARIZONA |
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TOZIGOOT NATIONAL MONUMENT Gary Foster PhotographClick on Image for High Resolution Version |
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GRAIN DISTRIBUTION CHARACTERISTICS (AGI CHART) |
International Space Station 800mm 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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VERDE RIVER COLLECTION SITE - Gary Foster PhotographClick on image for higher resolution version |
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Click on Image for High Resolution Version | Click on Image for High Resolution Version | Click on Image for High Resolution Version |
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This rock was included with the sand sample. It closely resembled the color of the sand grains. Maybe it is a source. The sample is almost 7 cm long at its widest point. |
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