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GRAIN DISTRIBUTION CHARACTERISTICS (AGI CHART) |
International Space Station 180mm 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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0X IMAGE |
1X IMAGE (BACKGROUND IMAGE) |
3X IMAGE |
| 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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I do not usually use 4X or 5X for my samples because there usually is no benefit. That is not true with this sample! The more detail the better! Unfortunately I don't have normal scale bars for 4X or 5X, so use your imagination. If I learn how to create them, I will add them to the images. Enjoy! |
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4X IMAGE (BACKGROUND IMAGE) |
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5X IMAGE |
| Click on Image for High Resolution Version |
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Click on Image for High Resolution Version |
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