Genetic horizon | Granulometric parameters | Granulometric features description | ||||
Symbols | Horizon depth, from - to, cm | Average grain diameter Mz, φ | Sorting, σ1 | Skewness (SK1) | ||
Profile 1 | ||||||
O/A | 0 - 2 | ***** | ***** | ***** | ***** | |
A | 2 - 12 | 2.171 | 1.427 | 0.457 | Fine-grain sand; poorly sorted; very positive slant distribution | |
Es | 12 - 25 | 2.145 | 1.428 | 0.458 | Fine-grain sand; poorly sorted; very positive slant distribution | |
Bs | 25 - 76 | 2.01 | 1.488 | 0.416 | Fine-grain sand; poorly sorted; very positive slant distribution | |
B/C | 76 - 140 | 1.993 | 0.992 | 0.291 | Medium-grain sand; moderately sorted; very positive slant distribution | |
C | 140 - 160 | 1.967 | 0.866 | 0.272 | Medium-grain sand; moderately sorted; positive slant distribution | |
Profile 2 | ||||||
O/A | 0 - 6 | ***** | ***** | ***** | ***** | |
A | 6 - 13 | 3.347 | 1.999 | 0.509 | Very fine-grain sand; poorly sorted; very positive slant distribution | |
Es | 13 - 21 | 2.944 | 1.725 | 0.545 | Fine-grain sand; poorly sorted; very positive slant distribution | |
Bs | 21 - 70 | 2.315 | 1.297 | 0.357 | Fine-grain sand; poorly sorted; very positive slant distribution | |
B/C | 70 - 110 | 2.113 | 0.604 | 0.028 | Fine-grain sand; moderately well sorted; symetric distribution | |
C | 110 - 120 | 1.859 | 0.621 | 0.007 | Medium-grain sand; moderately well sorted; symetric distribution | |
Profile 3 | ||||||
O/A | 0 - 5 | ***** | ***** | ***** | ***** | |
A | 5 - 17 | 2.753 | 1.921 | 0.593 | Fine-grain sand; poorly sorted; very positive slant distribution | |
Es | 17 - 23 | 1.966 | 1.345 | 0.385 | Medium-grain sand; poorly sorted; very positive slant distribution | |
Bs | 23 - 60 | 1.945 | 1.432 | 0.392 | Medium-grain sand; poorly sorted; very positive slant distribution | |
B/C | 60 - 115 | 1.944 | 0.788 | 0.083 | Medium-grain sand; moderately sorted; symetric distribution | |
C | 115 - 130 | 1.668 | 0.738 | 0.103 | Medium-grain sand; moderately sorted; very positive slant distribution | |