Graphic Standard Deviation
Description
Is an approximate measure of sorting or variation of a particle size distribution in phi scale; can be estimated from the percentages of the particles which correspond to the percentages 84% and 16%
Related formulasVariables
| σg | Graphic Standard Deviation (ϕ) |
| ϕ84 | Particle's percentage which corresponds to 84% phi unit (ϕ) |
| ϕ16 | Particle's percentage which corresponds to 16% phi unit (ϕ) |
Categories
External links