See detailed information for ELR XTD
⚠️ 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 |
|---|---|---|---|
| 0M -027y to 0M 0275y | Sand and Gravel | River Terrace Deposits Ⓤ | Thames Group - Clay, Silt, Sand and Gravel |
| 0M 0275y to 0M 0495y | Sand and Gravel | River Terrace Deposits Ⓤ | |
| 0M 0495y to 0M 0605y | Clay, Silt and Sand | Alluvium | |
| 0M 0605y to 1M 1155y | Clay, Silt and Sand | Alluvium | Thames Group - Clay, Silt, Sand and Gravel |
| 1M 1155y to 1M 1265y | Thames Group - Clay, Silt, Sand and Gravel | ||
| 1M 1265y to 2M 1375y | Clay, Silt and Sand | Alluvium | Thames Group - Clay, Silt, Sand and Gravel |
| 2M 1375y to 3M 0385y | Clay, Silt and Sand | Alluvium | Lambeth Group - Clay, Silt, Sand and Gravel |
| 3M 0385y to 3M 0935y | Clay, Silt and Sand | Alluvium | Thanet Sand Formation - Sand, Silt and Clay |
| 3M 0935y to 4M 0275y | Clay, Silt and Sand | Alluvium | White Chalk Subgroup - Chalk |
| 4M 0275y to 4M 1155y | Clay, Silt and Sand | Alluvium | Thanet Sand Formation - Sand, Silt and Clay |
| 4M 1155y to 4M 1485y | Sand and Gravel | River Terrace Deposits Ⓤ | Thanet Sand Formation - Sand, Silt and Clay |
| 4M 1485y to 5M 0605y | Sand and Gravel | River Terrace Deposits Ⓤ | Lambeth Group - Clay, Silt, Sand and Gravel |
| 5M 0605y to 5M 0825y | Sand and Gravel | River Terrace Deposits Ⓤ | Thanet Sand Formation - Sand, Silt and Clay |
| 5M 0825y to 6M 0055y | Sand and Gravel | River Terrace Deposits Ⓤ | White Chalk Subgroup - Chalk |
| 6M 0055y to 6M 1045y | Sand and Gravel | River Terrace Deposits Ⓤ | Thanet Sand Formation - Sand, Silt and Clay |
| 6M 1045y to 6M 1155y | Sand and Gravel | River Terrace Deposits Ⓤ | Lambeth Group - Clay, Silt, Sand and Gravel |
| 6M 1155y to 6M 1375y | Lambeth Group - Clay, Silt, Sand and Gravel | ||
| 6M 1375y to 7M 0165y | Sand and Gravel | River Terrace Deposits Ⓤ | Lambeth Group - Clay, Silt, Sand and Gravel |
| 7M 0165y to 7M 1595y | Sand and Gravel | River Terrace Deposits Ⓤ | Thames Group - Clay, Silt, Sand and Gravel |
| 7M 1595y to 10M 0165y | Thames Group - Clay, Silt, Sand and Gravel | ||
| 10M 0165y to 10M 0715y | Lambeth Group - Clay, Silt, Sand and Gravel | ||
| 10M 0715y to 11M 0055y | Thanet Sand Formation - Sand, Silt and Clay | ||
| 11M 0055y to 11M 1155y | Lambeth Group - Clay, Silt, Sand and Gravel | ||
| 11M 1155y to 13M 0165y | Thames Group - Clay, Silt, Sand and Gravel | ||
| 13M 0165y to 13M 1375y | Lambeth Group - Clay, Silt, Sand and Gravel | ||
| 13M 1375y to 14M 0055y | Thanet Sand Formation - Sand, Silt and Clay | ||
| 14M 0055y to 14M 0605y | White Chalk Subgroup - Chalk | ||
| 14M 0605y to 14M 1155y | Sand and Gravel | River Terrace Deposits Ⓤ | White Chalk Subgroup - Chalk |
| 14M 1155y to 17M 1485y | White Chalk Subgroup - Chalk | ||
| 17M 1485y to 18M 1375y | Diamicton | Clay-with-flints | White Chalk Subgroup - Chalk |
| 18M 1375y to 19M 0165y | White Chalk Subgroup - Chalk | ||
| 19M 0165y to 20M 0605y | Grey Chalk Subgroup - Chalk | ||
| 20M 0605y to 21M 0055y | Gault Formation and Upper Greensand Formation Ⓤ - Mudstone, Sandstone and Limestone | ||
| 21M 0055y to 21M 1045y | Lower Greensand Group - Sandstone and Mudstone | ||
| 21M 1045y to 21M 1485y | Clay, Silt and Sand | Alluvium | Lower Greensand Group - Sandstone and Mudstone |
| 21M 1485y to 24M 0605y | Lower Greensand Group - Sandstone and Mudstone | ||
| 24M 0605y to 28M 0385y | Wealden Group - Mudstone, Siltstone and Sandstone | ||
| 28M 0385y to 28M 0825y | Wealden Group - Sandstone and Siltstone, Interbedded | ||
| 28M 0825y to 28M 1705y | Sand and Gravel | River Terrace Deposits Ⓤ | Wealden Group - Sandstone and Siltstone, Interbedded |
| 28M 1705y to 29M 1375y | Clay, Silt and Sand | Alluvium | Wealden Group - Sandstone and Siltstone, Interbedded |
| 29M 1375y to 29M 1705y | Wealden Group - Sandstone and Siltstone, Interbedded | ||
| 29M 1705y to 30M 1155y | Clay, Silt and Sand | Alluvium | Wealden Group - Sandstone and Siltstone, Interbedded |
| 30M 1155y to 30M 1265y | Clay, Silt and Sand | Alluvium | Wealden Group - Mudstone, Siltstone and Sandstone |
| 30M 1265y to 30M 1485y | Clay, Silt and Sand | Alluvium | Wealden Group - Sandstone and Siltstone, Interbedded |
| 30M 1485y to 31M 0495y | Sand and Gravel | River Terrace Deposits Ⓤ | Wealden Group - Sandstone and Siltstone, Interbedded |
| 31M 0495y to 31M 0825y | Sand and Gravel | River Terrace Deposits Ⓤ | Wealden Group - Mudstone, Siltstone and Sandstone |
| 31M 0825y to 32M 0715y | Sand and Gravel | River Terrace Deposits Ⓤ | Wealden Group - Sandstone and Siltstone, Interbedded |
| 32M 0715y to 33M 0715y | Clay, Silt and Sand | Alluvium | Wealden Group - Sandstone and Siltstone, Interbedded |
| 33M 0715y to 34M 1155y | Sand and Gravel | River Terrace Deposits Ⓤ | Wealden Group - Sandstone and Siltstone, Interbedded |
| 34M 1155y to 35M 0825y | Sand and Gravel | River Terrace Deposits Ⓤ | Wealden Group - Mudstone, Siltstone and Sandstone |
| 35M 0825y to 36M 0715y | Wealden Group - Mudstone, Siltstone and Sandstone | ||
| 36M 0715y to 36M 0935y | Sand and Gravel | River Terrace Deposits Ⓤ | Wealden Group - Mudstone, Siltstone and Sandstone |
| 36M 0935y to 36M 1485y | Clay, Silt and Sand | Alluvium | Wealden Group - Mudstone, Siltstone and Sandstone |
| 36M 1485y to 37M 0055y | Wealden Group - Mudstone, Siltstone and Sandstone | ||
| 37M 0055y to 38M 0715y | Sand and Gravel | River Terrace Deposits Ⓤ | Wealden Group - Mudstone, Siltstone and Sandstone |
| 38M 0715y to 38M 1485y | Clay, Silt and Sand | Alluvium | Wealden Group - Mudstone, Siltstone and Sandstone |
| 38M 1485y to 39M 1485y | Wealden Group - Mudstone, Siltstone and Sandstone | ||
| 39M 1485y to 40M 1265y | Sand and Gravel | River Terrace Deposits Ⓤ | Wealden Group - Mudstone, Siltstone and Sandstone |
| 40M 1265y to 42M 0605y | Wealden Group - Mudstone, Siltstone and Sandstone | ||
| 42M 0605y to 42M 0935y | Sand and Gravel | River Terrace Deposits Ⓤ | Wealden Group - Mudstone, Siltstone and Sandstone |
| 42M 0935y to 42M 1265y | Clay, Silt and Sand | Alluvium | Wealden Group - Mudstone, Siltstone and Sandstone |
| 42M 1265y to 43M 0825y | Sand and Gravel | River Terrace Deposits Ⓤ | Wealden Group - Mudstone, Siltstone and Sandstone |
| 43M 0825y to 53M 0825y | Wealden Group - Mudstone, Siltstone and Sandstone | ||
| 53M 0825y to 53M 0935y | Lower Greensand Group - Sandstone and Mudstone | ||
| 53M 0935y to 53M 1375y | Clay, Silt and Sand | Alluvium | Lower Greensand Group - Sandstone and Mudstone |
| 53M 1375y to 54M 0385y | Clay, Silt and Sand | Alluvium | Wealden Group - Mudstone, Siltstone and Sandstone |
| 54M 0385y to 56M 0605y | Wealden Group - Mudstone, Siltstone and Sandstone | ||
| 56M 0605y to 56M 0935y | Clay, Silt and Sand | Alluvium | Wealden Group - Mudstone, Siltstone and Sandstone |
| 56M 0935y to 57M 0605y | Wealden Group - Mudstone, Siltstone and Sandstone | ||
| 57M 0605y to 58M 0825y | Lower Greensand Group - Sandstone and Mudstone | ||
| 58M 0825y to 59M 0055y | Wealden Group - Mudstone, Siltstone and Sandstone | ||
| 59M 0055y to 60M 0825y | Lower Greensand Group - Sandstone and Mudstone | ||
| 60M 0825y to 60M 1705y | Wealden Group - Mudstone, Siltstone and Sandstone | ||
| 60M 1705y to 61M 0495y | Clay, Silt and Sand | Alluvium | Wealden Group - Mudstone, Siltstone and Sandstone |
| 61M 0495y to 61M 0825y | Wealden Group - Mudstone, Siltstone and Sandstone | ||
| 61M 0825y to 61M 1595y | Lower Greensand Group - Sandstone and Mudstone | ||
| 61M 1595y to 64M 0495y | Silt | Brickearth | Lower Greensand Group - Sandstone and Mudstone |
| 64M 0495y to 70M 0605y | Lower Greensand Group - Sandstone and Mudstone | ||
| 70M 0605y to 70M 1045y | Unknown Lithology | Landslip | Lower Greensand Group - Sandstone and Mudstone |
| 70M 1045y to 70M 1485y | Unknown Lithology | Landslip | Gault Formation and Upper Greensand Formation Ⓤ - Mudstone, Sandstone and Limestone |
| 70M 1485y to 71M 0495y | Gault Formation and Upper Greensand Formation Ⓤ - Mudstone, Sandstone and Limestone | ||
| 71M 0495y to 71M 0605y | Grey Chalk Subgroup - Chalk | ||
| 71M 0605y to 71M 1045y | Diamicton | Clay-with-flints | Grey Chalk Subgroup - Chalk |
| 71M 1045y to 72M 0825y | Diamicton | Clay-with-flints | Gault Formation and Upper Greensand Formation Ⓤ - Mudstone, Sandstone and Limestone |
| 72M 0825y to 73M 1155y | Diamicton | Clay-with-flints | White Chalk Subgroup - Chalk |
| 73M 1155y to 74M 0605y | White Chalk Subgroup - Chalk | ||
| 74M 0605y to 75M 0165y | Diamicton | Clay-with-flints | White Chalk Subgroup - Chalk |
| 75M 0165y to 76M 0715y | White Chalk Subgroup - Chalk | ||
| 76M 0715y to 76M 0805y | Sand and Gravel | Raised Marine Deposits Ⓤ | White Chalk Subgroup - Chalk |