See detailed information for ELR SUD
⚠️ 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 |
|---|---|---|---|
| 46M 1004y to 46M 1595y | Thames Group - Clay, Silt, Sand and Gravel | ||
| 46M 1595y to 48M 1155y | Diamicton | Till | Thames Group - Clay, Silt, Sand and Gravel |
| 48M 1155y to 49M 1265y | Thames Group - Clay, Silt, Sand and Gravel | ||
| 49M 1265y to 51M 1265y | Diamicton | Till | Thames Group - Clay, Silt, Sand and Gravel |
| 51M 1265y to 52M 1155y | Thames Group - Clay, Silt, Sand and Gravel | ||
| 52M 1155y to 54M 0715y | Clay, Silt and Sand | Alluvium | Thames Group - Clay, Silt, Sand and Gravel |
| 54M 0715y to 54M 1045y | Clay, Silt and Sand | Alluvium | Lambeth Group - Clay, Silt, Sand and Gravel |
| 54M 1045y to 55M 0055y | Lambeth Group - Clay, Silt, Sand and Gravel | ||
| 55M 0055y to 55M 1595y | White Chalk Subgroup - Chalk | ||
| 55M 1595y to 56M 0825y | Diamicton | Till | White Chalk Subgroup - Chalk |
| 56M 0825y to 56M 1265y | Clay, Silt and Sand | Alluvium | White Chalk Subgroup - Chalk |
| 56M 1265y to 57M 1705y | Sand and Gravel | River Terrace Deposits Ⓤ | White Chalk Subgroup - Chalk |
| 57M 1705y to 58M 0912y | Diamicton | Till | White Chalk Subgroup - Chalk |