See detailed information for ELR ACR
⚠️ Geology shown below is based on British Geological Survey (BGS) low-resolution data sampled at 100 metre intervals along the ELR. The geology relative to the mileages should not be treated as accurate or complete. Data marked with Ⓤ is classed as undifferentiated by the BGS.
| Mileage | Material | Deposit | Bedrock |
|---|---|---|---|
| 56M 0573y to 56M 0616y | Wealden Group - Mudstone, Siltstone and Sandstone | ||
| 56M 0616y to 56M 0935y | Clay, Silt and Sand | Alluvium | Wealden Group - Mudstone, Siltstone and Sandstone |
| 56M 0935y to 56M 1375y | Wealden Group - Mudstone, Siltstone and Sandstone | ||
| 56M 1375y to 57M 0275y | Lower Greensand Group - Sandstone and Mudstone | ||
| 57M 0275y to 57M 1045y | Clay, Silt and Sand | Alluvium | Lower Greensand Group - Sandstone and Mudstone |
| 57M 1045y to 58M 1375y | Silt | Brickearth | Lower Greensand Group - Sandstone and Mudstone |
| 58M 1375y to 60M 1045y | Silt | Brickearth | Gault Formation and Upper Greensand Formation Ⓤ - Mudstone, Sandstone and Limestone |
| 60M 1045y to 61M 0275y | Silt | Brickearth | Grey Chalk Subgroup - Chalk |
| 61M 0275y to 61M 1045y | Grey Chalk Subgroup - Chalk | ||
| 61M 1045y to 62M 0495y | White Chalk Subgroup - Chalk | ||
| 62M 0495y to 62M 1265y | Clay, Silt and Sand | Alluvium | White Chalk Subgroup - Chalk |
| 62M 1265y to 64M 0605y | White Chalk Subgroup - Chalk | ||
| 64M 0605y to 64M 0935y | Clay, Silt and Sand | Alluvium | White Chalk Subgroup - Chalk |
| 64M 0935y to 65M 1485y | White Chalk Subgroup - Chalk | ||
| 65M 1485y to 66M 0495y | Clay, Silt and Sand | Alluvium | White Chalk Subgroup - Chalk |
| 66M 0495y to 67M 0825y | White Chalk Subgroup - Chalk | ||
| 67M 0825y to 68M 1485y | Silt | Brickearth | White Chalk Subgroup - Chalk |
| 68M 1485y to 69M 0385y | White Chalk Subgroup - Chalk | ||
| 69M 0385y to 69M 0605y | Silt | Brickearth | White Chalk Subgroup - Chalk |
| 69M 0605y to 69M 1155y | Silt | Brickearth | Thanet Sand Formation - Sand, Silt and Clay |
| 69M 1155y to 70M 0495y | Silt | Brickearth | White Chalk Subgroup - Chalk |
| 70M 0495y to 71M 0275y | Silt | Brickearth | Thanet Sand Formation - Sand, Silt and Clay |
| 71M 0275y to 71M 0605y | Thanet Sand Formation - Sand, Silt and Clay | ||
| 71M 0605y to 71M 1595y | Lambeth Group - Clay, Silt, Sand and Gravel | ||
| 71M 1595y to 72M 0165y | Thanet Sand Formation - Sand, Silt and Clay | ||
| 72M 0165y to 72M 0605y | Lambeth Group - Clay, Silt, Sand and Gravel | ||
| 72M 0605y to 74M 0275y | Thanet Sand Formation - Sand, Silt and Clay | ||
| 74M 0275y to 75M 0385y | Lambeth Group - Clay, Silt, Sand and Gravel | ||
| 75M 0385y to 75M 0825y | Thames Group - Clay, Silt, Sand and Gravel | ||
| 75M 0825y to 76M 0495y | Lambeth Group - Clay, Silt, Sand and Gravel | ||
| 76M 0495y to 76M 0825y | Thames Group - Clay, Silt, Sand and Gravel | ||
| 76M 0825y to 76M 1155y | Clay, Silt and Sand | Alluvium | Thames Group - Clay, Silt, Sand and Gravel |
| 76M 1155y to 76M 1265y | Clay, Silt and Sand | Alluvium | Lambeth Group - Clay, Silt, Sand and Gravel |
| 76M 1265y to 76M 1705y | Lambeth Group - Clay, Silt, Sand and Gravel | ||
| 76M 1705y to 77M 0385y | Thanet Sand Formation - Sand, Silt and Clay | ||
| 77M 0385y to 78M 0605y | Clay, Silt and Sand | Alluvium | Thanet Sand Formation - Sand, Silt and Clay |
| 78M 0605y to 78M 0715y | Silt | Brickearth | Thanet Sand Formation - Sand, Silt and Clay |
| 78M 0715y to 79M 1155y | Silt | Brickearth | White Chalk Subgroup - Chalk |
| 79M 1155y to 83M 1265y | Silt | Brickearth | Thanet Sand Formation - Sand, Silt and Clay |
| 83M 1265y to 83M 1375y | Thanet Sand Formation - Sand, Silt and Clay | ||
| 83M 1375y to 84M 0495y | White Chalk Subgroup - Chalk | ||
| 84M 0495y to 85M 1265y | Silt | Brickearth | White Chalk Subgroup - Chalk |
| 85M 1265y to 85M 1509y | White Chalk Subgroup - Chalk |