See detailed information for ELR BKE
⚠️ 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 |
|---|---|---|---|
| 35M 1307y to 36M 0715y | Clay, Silt and Sand | Alluvium | White Chalk Subgroup - Chalk |
| 36M 0715y to 36M 1595y | Sand and Gravel | River Terrace Deposits Ⓤ | White Chalk Subgroup - Chalk |
| 36M 1595y to 37M 0055y | White Chalk Subgroup - Chalk | ||
| 37M 0055y to 37M 0605y | Lambeth Group - Clay, Silt, Sand and Gravel | ||
| 37M 0605y to 37M 1595y | Clay, Silt and Sand | Alluvium | Lambeth Group - Clay, Silt, Sand and Gravel |
| 37M 1595y to 38M 0495y | Clay, Silt and Sand | Alluvium | White Chalk Subgroup - Chalk |
| 38M 0495y to 38M 1265y | Clay, Silt and Sand | Alluvium | Lambeth Group - Clay, Silt, Sand and Gravel |
| 38M 1265y to 39M 1265y | Sand and Gravel | River Terrace Deposits Ⓤ | Lambeth Group - Clay, Silt, Sand and Gravel |
| 39M 1265y to 40M 0605y | Sand and Gravel | River Terrace Deposits Ⓤ | Thames Group - Clay, Silt, Sand and Gravel |
| 40M 0605y to 41M 0275y | Thames Group - Clay, Silt, Sand and Gravel | ||
| 41M 0275y to 41M 1155y | Sand and Gravel | River Terrace Deposits Ⓤ | Thames Group - Clay, Silt, Sand and Gravel |
| 41M 1155y to 42M 0275y | Thames Group - Clay, Silt, Sand and Gravel | ||
| 42M 0275y to 42M 0825y | Sand and Gravel | Sand and Gravel of Uncertain Age and Origin | Thames Group - Clay, Silt, Sand and Gravel |
| 42M 0825y to 44M 1375y | Thames Group - Clay, Silt, Sand and Gravel | ||
| 44M 1375y to 45M 0275y | Clay, Silt and Sand | Alluvium | Thames Group - Clay, Silt, Sand and Gravel |
| 45M 0275y to 49M 1595y | Thames Group - Clay, Silt, Sand and Gravel | ||
| 49M 1595y to 50M 0495y | Lambeth Group - Clay, Silt, Sand and Gravel | ||
| 50M 0495y to 51M 0802y | White Chalk Subgroup - Chalk |