Geology for ELR SSV 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 |
|---|---|---|---|
| 20M 0430y to 21M 1045y | Thames Group - Clay, Silt, Sand and Gravel | ||
| 21M 1045y to 22M 0165y | Diamicton | Till | Thames Group - Clay, Silt, Sand and Gravel |
| 22M 0165y to 23M 0605y | Thames Group - Clay, Silt, Sand and Gravel | ||
| 23M 0605y to 23M 0935y | Diamicton | Till | Thames Group - Clay, Silt, Sand and Gravel |
| 23M 0935y to 24M 0495y | Thames Group - Clay, Silt, Sand and Gravel | ||
| 24M 0495y to 24M 1155y | Bracklesham Group and Barton Group Ⓤ - Sand, Silt and Clay | ||
| 24M 1155y to 25M 0055y | Thames Group - Clay, Silt, Sand and Gravel | ||
| 25M 0055y to 25M 0715y | Bracklesham Group and Barton Group Ⓤ - Sand, Silt and Clay | ||
| 25M 0715y to 37M 1045y | Thames Group - Clay, Silt, Sand and Gravel | ||
| 37M 1045y to 41M 1010y | Sand and Gravel | River Terrace Deposits Ⓤ | Thames Group - Clay, Silt, Sand and Gravel |