Substrate Origin | Geologic Substrate |
Substrate Class | Unconsolidated Mineral Substrate |
Substrate Subclass | Fine Unconsolidated Substrate |
Substrate Group | Sandy Mud |
Substrate Subgroup | Sandy Clay |
Definition | Geologic Substrate surface layer shows no trace of Gravel and contains 10% to < 50% Sand; the remaining Clay-Silt mix is 67% or more Clay. |