Geology for ELR LTN1 is based on British Geological Survey (BGS) low-resolution data sampled at 100 metre intervals along the ELR. The geology presented should not be treated as accurate or complete. Data marked with Ⓤ is classed as undifferentiated by the BGS.
| Mileage | Material | Deposit | Bedrock |
|---|---|---|---|
| 0M -067y to 2M 1155y | Sand and Gravel | River Terrace Deposits Ⓤ | Thames Group - Clay, Silt, Sand and Gravel |
| 2M 1155y to 3M 0605y | Clay, Silt and Sand | Alluvium | Thames Group - Clay, Silt, Sand and Gravel |
| 3M 0605y to 3M 1375y | Clay, Silt and Sand | Alluvium | Lambeth Group - Clay, Silt, Sand and Gravel |
| 3M 1375y to 4M 1265y | Sand and Gravel | River Terrace Deposits Ⓤ | Lambeth Group - Clay, Silt, Sand and Gravel |
| 4M 1265y to 5M 0495y | Sand and Gravel | River Terrace Deposits Ⓤ | Thames Group - Clay, Silt, Sand and Gravel |
| 5M 0495y to 6M 0605y | Sand and Gravel | River Terrace Deposits Ⓤ | Lambeth Group - Clay, Silt, Sand and Gravel |
| 6M 0605y to 6M 0825y | Sand and Gravel | River Terrace Deposits Ⓤ | Thames Group - Clay, Silt, Sand and Gravel |
| 6M 0825y to 6M 1595y | Clay, Silt and Sand | Alluvium | Thames Group - Clay, Silt, Sand and Gravel |
| 6M 1595y to 7M 0495y | Sand and Gravel | River Terrace Deposits Ⓤ | Lambeth Group - Clay, Silt, Sand and Gravel |
| 7M 0495y to 10M 1485y | Sand and Gravel | River Terrace Deposits Ⓤ | Thames Group - Clay, Silt, Sand and Gravel |
| 10M 1485y to 11M 1045y | Thames Group - Clay, Silt, Sand and Gravel | ||
| 11M 1045y to 13M 0825y | Sand and Gravel | River Terrace Deposits Ⓤ | Thames Group - Clay, Silt, Sand and Gravel |
| 13M 0825y to 18M 0275y | Thames Group - Clay, Silt, Sand and Gravel | ||
| 18M 0275y to 18M 1375y | Bracklesham Group and Barton Group Ⓤ - Sand, Silt and Clay | ||
| 18M 1375y to 21M 1375y | Thames Group - Clay, Silt, Sand and Gravel | ||
| 21M 1375y to 22M 0165y | Diamicton | Till | Thames Group - Clay, Silt, Sand and Gravel |
| 22M 0165y to 23M 1155y | Thames Group - Clay, Silt, Sand and Gravel | ||
| 23M 1155y to 23M 1265y | Diamicton | Till | Thames Group - Clay, Silt, Sand and Gravel |
| 23M 1265y to 24M 0495y | Diamicton | Till | Bracklesham Group and Barton Group Ⓤ - Sand, Silt and Clay |
| 24M 0495y to 25M 1045y | Diamicton | Till | Thames Group - Clay, Silt, Sand and Gravel |
| 25M 1045y to 25M 1155y | Thames Group - Clay, Silt, Sand and Gravel | ||
| 25M 1155y to 26M 0715y | Diamicton | Till | Thames Group - Clay, Silt, Sand and Gravel |
| 26M 0715y to 26M 1265y | Thames Group - Clay, Silt, Sand and Gravel | ||
| 26M 1265y to 27M 0275y | Diamicton | Till | Thames Group - Clay, Silt, Sand and Gravel |
| 27M 0275y to 28M 1595y | Thames Group - Clay, Silt, Sand and Gravel | ||
| 28M 1595y to 29M 0385y | Clay, Silt and Sand | Alluvium | Thames Group - Clay, Silt, Sand and Gravel |
| 29M 0385y to 29M 1485y | Thames Group - Clay, Silt, Sand and Gravel | ||
| 29M 1485y to 30M 0055y | Clay, Silt and Sand | Alluvium | Thames Group - Clay, Silt, Sand and Gravel |
| 30M 0055y to 30M 1705y | Thames Group - Clay, Silt, Sand and Gravel | ||
| 30M 1705y to 31M 0935y | Diamicton | Till | Thames Group - Clay, Silt, Sand and Gravel |
| 31M 0935y to 31M 1705y | Thames Group - Clay, Silt, Sand and Gravel | ||
| 31M 1705y to 34M 0165y | Diamicton | Till | Thames Group - Clay, Silt, Sand and Gravel |
| 34M 0165y to 34M 0605y | Silt | Brickearth | Thames Group - Clay, Silt, Sand and Gravel |
| 34M 0605y to 34M 1375y | Diamicton | Till | Thames Group - Clay, Silt, Sand and Gravel |
| 34M 1375y to 35M 0385y | Silt | Brickearth | Thames Group - Clay, Silt, Sand and Gravel |
| 35M 0385y to 35M 1045y | Sand and Gravel | Glacial Sand and Gravel | Thames Group - Clay, Silt, Sand and Gravel |
| 35M 1045y to 37M 1265y | Diamicton | Till | Thames Group - Clay, Silt, Sand and Gravel |
| 37M 1265y to 38M 1705y | Sand and Gravel | River Terrace Deposits Ⓤ | Thames Group - Clay, Silt, Sand and Gravel |
| 38M 1705y to 41M 0825y | Diamicton | Till | Thames Group - Clay, Silt, Sand and Gravel |
| 41M 0825y to 42M 1375y | Sand and Gravel | River Terrace Deposits Ⓤ | Thames Group - Clay, Silt, Sand and Gravel |
| 42M 1375y to 42M 1485y | Sand and Gravel | Glacial Sand and Gravel | Thames Group - Clay, Silt, Sand and Gravel |
| 42M 1485y to 46M 0165y | Diamicton | Till | Thames Group - Clay, Silt, Sand and Gravel |
| 46M 0165y to 48M 0495y | Thames Group - Clay, Silt, Sand and Gravel | ||
| 48M 0495y to 49M 0055y | Sand and Gravel | Glacial Sand and Gravel | Thames Group - Clay, Silt, Sand and Gravel |
| 49M 0055y to 52M 0605y | Thames Group - Clay, Silt, Sand and Gravel | ||
| 52M 0605y to 52M 0825y | Sand and Gravel | Glacial Sand and Gravel | Thames Group - Clay, Silt, Sand and Gravel |
| 52M 0825y to 53M 0275y | Thames Group - Clay, Silt, Sand and Gravel | ||
| 53M 0275y to 53M 1705y | Diamicton | Till | Thames Group - Clay, Silt, Sand and Gravel |
| 53M 1705y to 54M 1045y | Thames Group - Clay, Silt, Sand and Gravel | ||
| 54M 1045y to 55M 0055y | Thames Group - Clay, Silt, Sand and Gravel | ||
| 55M 0055y to 56M 1595y | Diamicton | Till | Thames Group - Clay, Silt, Sand and Gravel |
| 56M 1595y to 58M 0165y | Thames Group - Clay, Silt, Sand and Gravel | ||
| 58M 0165y to 58M 0275y | Sand and Gravel | River Terrace Deposits Ⓤ | Thames Group - Clay, Silt, Sand and Gravel |
| 58M 0275y to 58M 1595y | Clay, Silt and Sand | Alluvium | Thames Group - Clay, Silt, Sand and Gravel |
| 58M 1595y to 59M 0055y | Sand and Gravel | River Terrace Deposits Ⓤ | Thames Group - Clay, Silt, Sand and Gravel |
| 59M 0055y to 59M 1375y | Clay, Silt and Sand | Alluvium | Thames Group - Clay, Silt, Sand and Gravel |
| 59M 1375y to 59M 1485y | Clay, Silt and Sand | Alluvium | |
| 59M 1485y to 59M 1705y | Clay, Silt and Sand | Alluvium | Thames Group - Clay, Silt, Sand and Gravel |
| 59M 1705y to 60M 0275y | Clay, Silt and Sand | Alluvium | |
| 60M 0275y to 60M 0605y | Clay, Silt and Sand | Alluvium | Thames Group - Clay, Silt, Sand and Gravel |
| 60M 0605y to 60M 0825y | Clay, Silt and Sand | Alluvium | |
| 60M 0825y to 60M 0935y | Clay, Silt and Sand | Alluvium | Thames Group - Clay, Silt, Sand and Gravel |
| 60M 0935y to 60M 1155y | Clay, Silt and Sand | Alluvium | |
| 60M 1155y to 60M 1705y | Clay, Silt and Sand | Alluvium | Thames Group - Clay, Silt, Sand and Gravel |
| 60M 1705y to 61M 0605y | Sand and Gravel | Glacial Sand and Gravel | Thames Group - Clay, Silt, Sand and Gravel |
| 61M 0605y to 61M 1155y | Sand and Gravel | Glacial Sand and Gravel | Neogene to Quaternary Rocks Ⓤ - Gravel, Sand, Silt and Clay |
| 61M 1155y to 61M 1485y | Clay, Silt and Sand | Alluvium | Neogene to Quaternary Rocks Ⓤ - Gravel, Sand, Silt and Clay |
| 61M 1485y to 63M 0275y | Sand and Gravel | Glacial Sand and Gravel | Thames Group - Clay, Silt, Sand and Gravel |
| 63M 0275y to 65M 1485y | Sand and Gravel | Glacial Sand and Gravel | Neogene to Quaternary Rocks Ⓤ - Gravel, Sand, Silt and Clay |
| 65M 1485y to 66M 0055y | Diamicton | Till | Neogene to Quaternary Rocks Ⓤ - Gravel, Sand, Silt and Clay |
| 66M 0055y to 67M 0055y | Diamicton | Till | Thames Group - Clay, Silt, Sand and Gravel |
| 67M 0055y to 67M 0275y | Thames Group - Clay, Silt, Sand and Gravel | ||
| 67M 0275y to 67M 0605y | Lambeth Group - Clay, Silt, Sand and Gravel | ||
| 67M 0605y to 67M 0825y | White Chalk Subgroup - Chalk | ||
| 67M 0825y to 68M 0495y | Lambeth Group - Clay, Silt, Sand and Gravel | ||
| 68M 0495y to 68M 0935y | Thames Group - Clay, Silt, Sand and Gravel | ||
| 68M 0935y to 69M 0055y | Sand and Gravel | River Terrace Deposits Ⓤ | Thames Group - Clay, Silt, Sand and Gravel |
| 69M 0055y to 69M 0715y | Sand and Gravel | River Terrace Deposits Ⓤ | Lambeth Group - Clay, Silt, Sand and Gravel |
| 69M 0715y to 69M 1265y | Clay, Silt and Sand | Alluvium | White Chalk Subgroup - Chalk |
| 69M 1265y to 70M 0275y | Sand and Gravel | River Terrace Deposits Ⓤ | White Chalk Subgroup - Chalk |
| 70M 0275y to 70M 1375y | Sand and Gravel | Glacial Sand and Gravel | White Chalk Subgroup - Chalk |
| 70M 1375y to 71M 0275y | Diamicton | Till | White Chalk Subgroup - Chalk |
| 71M 0275y to 71M 0495y | Sand and Gravel | Glacial Sand and Gravel | White Chalk Subgroup - Chalk |
| 71M 0495y to 72M 0715y | White Chalk Subgroup - Chalk | ||
| 72M 0715y to 73M 0165y | Clay, Silt and Sand | Alluvium | White Chalk Subgroup - Chalk |
| 73M 0165y to 73M 0605y | Sand and Gravel | River Terrace Deposits Ⓤ | White Chalk Subgroup - Chalk |
| 73M 0605y to 73M 1595y | Clay, Silt and Sand | Alluvium | White Chalk Subgroup - Chalk |
| 73M 1595y to 74M 0605y | Sand and Gravel | River Terrace Deposits Ⓤ | White Chalk Subgroup - Chalk |
| 74M 0605y to 75M 0165y | Clay, Silt and Sand | Alluvium | White Chalk Subgroup - Chalk |
| 75M 0165y to 75M 0935y | White Chalk Subgroup - Chalk | ||
| 75M 0935y to 76M 0385y | Clay, Silt and Sand | Alluvium | White Chalk Subgroup - Chalk |
| 76M 0385y to 76M 1485y | White Chalk Subgroup - Chalk | ||
| 76M 1485y to 78M 0275y | Clay, Silt and Sand | Alluvium | White Chalk Subgroup - Chalk |
| 78M 0275y to 78M 0385y | Diamicton | Till | White Chalk Subgroup - Chalk |
| 78M 0385y to 79M 0385y | Clay, Silt and Sand | Alluvium | White Chalk Subgroup - Chalk |
| 79M 0385y to 79M 1375y | Diamicton | Till | White Chalk Subgroup - Chalk |
| 79M 1375y to 81M 1375y | Diamicton | Till | Neogene to Quaternary Rocks Ⓤ - Gravel, Sand, Silt and Clay |
| 81M 1375y to 81M 1705y | Sand and Gravel | Glacial Sand and Gravel | Neogene to Quaternary Rocks Ⓤ - Gravel, Sand, Silt and Clay |
| 81M 1705y to 87M 0715y | Diamicton | Till | Neogene to Quaternary Rocks Ⓤ - Gravel, Sand, Silt and Clay |
| 87M 0715y to 87M 1595y | Sand and Gravel | River Terrace Deposits Ⓤ | Neogene to Quaternary Rocks Ⓤ - Gravel, Sand, Silt and Clay |
| 87M 1595y to 92M 0165y | Diamicton | Till | Neogene to Quaternary Rocks Ⓤ - Gravel, Sand, Silt and Clay |
| 92M 0165y to 93M 1265y | Diamicton | Till | White Chalk Subgroup - Chalk |
| 93M 1265y to 95M 0275y | Sand and Gravel | Glacial Sand and Gravel | White Chalk Subgroup - Chalk |
| 95M 0275y to 100M 1155y | Diamicton | Till | White Chalk Subgroup - Chalk |
| 100M 1155y to 100M 1595y | Diamicton | Till | Neogene to Quaternary Rocks Ⓤ - Gravel, Sand, Silt and Clay |
| 100M 1595y to 104M 1265y | Diamicton | Till | White Chalk Subgroup - Chalk |
| 104M 1265y to 105M 1045y | Clay, Silt and Sand | Alluvium | White Chalk Subgroup - Chalk |
| 105M 1045y to 105M 1705y | Diamicton | Till | White Chalk Subgroup - Chalk |
| 105M 1705y to 106M 0495y | Clay, Silt and Sand | Alluvium | White Chalk Subgroup - Chalk |
| 106M 0495y to 110M 0715y | Diamicton | Till | White Chalk Subgroup - Chalk |
| 110M 0715y to 111M 1485y | Sand and Gravel | Glacial Sand and Gravel | White Chalk Subgroup - Chalk |
| 111M 1485y to 112M 0275y | Clay, Silt and Sand | Alluvium | White Chalk Subgroup - Chalk |
| 112M 0275y to 113M 1045y | Sand and Gravel | Glacial Sand and Gravel | White Chalk Subgroup - Chalk |
| 113M 1045y to 113M 1481y | White Chalk Subgroup - Chalk | ||
| 113M 1481y to 113M 1532y | Clay, Silt and Sand | Alluvium | White Chalk Subgroup - Chalk |