See detailed information for ELR SWM1
⚠️ 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 |
|---|---|---|---|
| 77M 0588y to 79M 1265y | West Walton Formation, Ampthill Clay Formation and Kimmeridge Clay Formation Ⓤ - Mudstone | ||
| 79M 1265y to 80M 0935y | Corallian Group - Limestone, Sandstone, Siltstone and Mudstone | ||
| 80M 0935y to 82M 0165y | Kellaways Formation and Oxford Clay Formation Ⓤ - Mudstone, Siltstone and Sandstone | ||
| 82M 0165y to 82M 0825y | Clay, Silt and Sand | Alluvium | Kellaways Formation and Oxford Clay Formation Ⓤ - Mudstone, Siltstone and Sandstone |
| 82M 0825y to 85M 1595y | Kellaways Formation and Oxford Clay Formation Ⓤ - Mudstone, Siltstone and Sandstone | ||
| 85M 1595y to 85M 1705y | Sand and Gravel | River Terrace Deposits Ⓤ | Kellaways Formation and Oxford Clay Formation Ⓤ - Mudstone, Siltstone and Sandstone |
| 85M 1705y to 87M 0495y | Kellaways Formation and Oxford Clay Formation Ⓤ - Mudstone, Siltstone and Sandstone | ||
| 87M 0495y to 87M 1265y | Clay, Silt and Sand | Alluvium | Kellaways Formation and Oxford Clay Formation Ⓤ - Mudstone, Siltstone and Sandstone |
| 87M 1265y to 88M 0605y | Kellaways Formation and Oxford Clay Formation Ⓤ - Mudstone, Siltstone and Sandstone | ||
| 88M 0605y to 88M 1155y | Clay, Silt and Sand | Alluvium | Kellaways Formation and Oxford Clay Formation Ⓤ - Mudstone, Siltstone and Sandstone |
| 88M 1155y to 88M 1265y | Kellaways Formation and Oxford Clay Formation Ⓤ - Mudstone, Siltstone and Sandstone | ||
| 88M 1265y to 95M 0495y | Great Oolite Group - Sandstone, Limestone and Argillaceous Rocks | ||
| 95M 0495y to 96M 0165y | Unknown Lithology | Landslip | Great Oolite Group - Sandstone, Limestone and Argillaceous Rocks |
| 96M 0165y to 96M 1595y | Unknown Lithology | Landslip | Inferior Oolite Group - Limestone, Sandstone, Siltstone and Mudstone |
| 96M 1595y to 97M 0935y | Unknown Lithology | Landslip | Lias Group - Mudstone, Siltstone, Limestone and Sandstone |
| 97M 0935y to 97M 1485y | Unknown Lithology | Landslip | Inferior Oolite Group - Limestone, Sandstone, Siltstone and Mudstone |
| 97M 1485y to 98M 1045y | Unknown Lithology | Landslip | Lias Group - Mudstone, Siltstone, Limestone and Sandstone |
| 98M 1045y to 98M 1595y | Lias Group - Mudstone, Siltstone, Limestone and Sandstone | ||
| 98M 1595y to 102M 0275y | Unknown Lithology | Landslip | Lias Group - Mudstone, Siltstone, Limestone and Sandstone |
| 102M 0275y to 102M 0385y | Sand and Gravel | River Terrace Deposits Ⓤ | Lias Group - Mudstone, Siltstone, Limestone and Sandstone |
| 102M 0385y to 103M 0935y | Unknown Lithology | Landslip | Lias Group - Mudstone, Siltstone, Limestone and Sandstone |
| 103M 0935y to 103M 1375y | Lias Group - Mudstone, Siltstone, Limestone and Sandstone | ||
| 103M 1375y to 104M 1375y | Unknown Lithology | Landslip | Lias Group - Mudstone, Siltstone, Limestone and Sandstone |
| 104M 1375y to 106M 1644y | Lias Group - Mudstone, Siltstone, Limestone and Sandstone |