| It is predominantly of a brown forest soil type with some gleying, the lower parts being formed from raised beach sands and gravels derived from Old Red Sandstone and lavas. |
| The maximum depth to mollic colors can become thinner in a soil profile over time due to erosion, compaction, decomposition of organic matter, or gleying. |
| The main soil-forming processes in these soils are ferrolysis with Fe-segregation, deferritization and surface gleying. |