See detailed information for ELR SPC1
⚠️ 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 |
|---|---|---|---|
| 0M -109y to 0M 0935y | Thames Group - Clay, Silt, Sand and Gravel | ||
| 0M 0935y to 0M 1375y | Sand and Gravel | River Terrace Deposits Ⓤ | Thames Group - Clay, Silt, Sand and Gravel |
| 0M 1375y to 6M 0495y | Thames Group - Clay, Silt, Sand and Gravel | ||
| 6M 0495y to 6M 1485y | Sand and Gravel | Glacial Sand and Gravel | Thames Group - Clay, Silt, Sand and Gravel |
| 6M 1485y to 13M 1595y | Thames Group - Clay, Silt, Sand and Gravel | ||
| 13M 1595y to 14M 0495y | Lambeth Group - Clay, Silt, Sand and Gravel | ||
| 14M 0495y to 16M 0275y | White Chalk Subgroup - Chalk | ||
| 16M 0275y to 16M 0715y | Clay, Silt and Sand | Alluvium | White Chalk Subgroup - Chalk |
| 16M 0715y to 17M 1155y | Sand and Gravel | Glacial Sand and Gravel | White Chalk Subgroup - Chalk |
| 17M 1155y to 18M 1045y | Diamicton | Till | White Chalk Subgroup - Chalk |
| 18M 1045y to 20M 0715y | Sand and Gravel | Glacial Sand and Gravel | White Chalk Subgroup - Chalk |
| 20M 0715y to 20M 1485y | Sand and Gravel | Glacial Sand and Gravel | Lambeth Group - Clay, Silt, Sand and Gravel |
| 20M 1485y to 20M 1705y | Sand and Gravel | Glacial Sand and Gravel | White Chalk Subgroup - Chalk |
| 20M 1705y to 21M 0935y | White Chalk Subgroup - Chalk | ||
| 21M 0935y to 22M 0825y | Diamicton | Clay-with-flints | White Chalk Subgroup - Chalk |
| 22M 0825y to 22M 1375y | White Chalk Subgroup - Chalk | ||
| 22M 1375y to 23M 1045y | Diamicton | Clay-with-flints | White Chalk Subgroup - Chalk |
| 23M 1045y to 24M 1045y | White Chalk Subgroup - Chalk | ||
| 24M 1045y to 26M 0275y | Diamicton | Clay-with-flints | White Chalk Subgroup - Chalk |
| 26M 0275y to 29M 0715y | White Chalk Subgroup - Chalk | ||
| 29M 0715y to 32M 0715y | Sand and Gravel | River Terrace Deposits Ⓤ | White Chalk Subgroup - Chalk |
| 32M 0715y to 33M 0055y | Sand and Gravel | River Terrace Deposits Ⓤ | Grey Chalk Subgroup - Chalk |
| 33M 0055y to 36M 1595y | Grey Chalk Subgroup - Chalk | ||
| 36M 1595y to 37M 1265y | Gault Formation and Upper Greensand Formation Ⓤ - Mudstone, Sandstone and Limestone | ||
| 37M 1265y to 37M 1375y | Diamicton | Till | Gault Formation and Upper Greensand Formation Ⓤ - Mudstone, Sandstone and Limestone |
| 37M 1375y to 38M 1265y | Gault Formation and Upper Greensand Formation Ⓤ - Mudstone, Sandstone and Limestone | ||
| 38M 1265y to 39M 0605y | Clay, Silt and Sand | Alluvium | Gault Formation and Upper Greensand Formation Ⓤ - Mudstone, Sandstone and Limestone |
| 39M 0605y to 39M 1045y | Gault Formation and Upper Greensand Formation Ⓤ - Mudstone, Sandstone and Limestone | ||
| 39M 1045y to 40M 1155y | Lower Greensand Group - Sandstone and Mudstone | ||
| 40M 1155y to 42M 1375y | West Walton Formation, Ampthill Clay Formation and Kimmeridge Clay Formation Ⓤ - Mudstone | ||
| 42M 1375y to 47M 1595y | Kellaways Formation and Oxford Clay Formation Ⓤ - Mudstone, Siltstone and Sandstone | ||
| 47M 1595y to 49M 0165y | Sand and Gravel | River Terrace Deposits Ⓤ | Kellaways Formation and Oxford Clay Formation Ⓤ - Mudstone, Siltstone and Sandstone |
| 49M 0165y to 49M 0495y | Clay, Silt and Sand | Alluvium | Great Oolite Group - Sandstone, Limestone and Argillaceous Rocks |
| 49M 0495y to 49M 1485y | Sand and Gravel | River Terrace Deposits Ⓤ | Great Oolite Group - Sandstone, Limestone and Argillaceous Rocks |
| 49M 1485y to 50M 0050y | Kellaways Formation and Oxford Clay Formation Ⓤ - Mudstone, Siltstone and Sandstone |