See detailed information for ELR HTG
⚠️ 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 |
|---|---|---|---|
| 27M 0362y to 27M 0401y | Clay, Silt and Sand | Alluvium | Lambeth Group - Clay, Silt, Sand and Gravel |
| 27M 0401y to 27M 1375y | Clay, Silt and Sand | Alluvium | Thames Group - Clay, Silt, Sand and Gravel |
| 27M 1375y to 28M 0935y | Clay, Silt and Sand | Alluvium | Lambeth Group - Clay, Silt, Sand and Gravel |
| 28M 0935y to 28M 1155y | Clay, Silt and Sand | Alluvium | Thanet Sand Formation - Sand, Silt and Clay |
| 28M 1155y to 31M 0495y | Thanet Sand Formation - Sand, Silt and Clay | ||
| 31M 0495y to 31M 1375y | Lambeth Group - Clay, Silt, Sand and Gravel | ||
| 31M 1375y to 31M 1595y | Thanet Sand Formation - Sand, Silt and Clay | ||
| 31M 1595y to 32M 0495y | Lambeth Group - Clay, Silt, Sand and Gravel | ||
| 32M 0495y to 32M 1485y | Thames Group - Clay, Silt, Sand and Gravel | ||
| 32M 1485y to 33M 0385y | Sand and Gravel | River Terrace Deposits Ⓤ | Thames Group - Clay, Silt, Sand and Gravel |
| 33M 0385y to 34M 0495y | Thames Group - Clay, Silt, Sand and Gravel | ||
| 34M 0495y to 34M 1265y | Silt | Brickearth | Thames Group - Clay, Silt, Sand and Gravel |
| 34M 1265y to 35M 1375y | Thames Group - Clay, Silt, Sand and Gravel | ||
| 35M 1375y to 36M 0165y | |||
| 36M 0165y to 36M 1045y | Thames Group - Clay, Silt, Sand and Gravel | ||
| 36M 1045y to 39M 0055y | Clay, Silt and Sand | Alluvium | Thames Group - Clay, Silt, Sand and Gravel |
| 39M 0055y to 39M 0275y | Sand and Gravel | River Terrace Deposits Ⓤ | Thames Group - Clay, Silt, Sand and Gravel |
| 39M 0275y to 39M 1030y | Clay, Silt and Sand | Alluvium | Thames Group - Clay, Silt, Sand and Gravel |