See detailed information for ELR RSJ
⚠️ 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 |
|---|---|---|---|
| 22M 1001y to 24M 1045y | Lower Greensand Group - Sandstone and Mudstone | ||
| 24M 1045y to 25M 0495y | Gault Formation and Upper Greensand Formation Ⓤ - Mudstone, Sandstone and Limestone | ||
| 25M 0495y to 25M 1155y | Lower Greensand Group - Sandstone and Mudstone | ||
| 25M 1155y to 27M 0055y | Gault Formation and Upper Greensand Formation Ⓤ - Mudstone, Sandstone and Limestone | ||
| 27M 0055y to 27M 1045y | Grey Chalk Subgroup - Chalk | ||
| 27M 1045y to 28M 0495y | Gault Formation and Upper Greensand Formation Ⓤ - Mudstone, Sandstone and Limestone | ||
| 28M 0495y to 28M 1375y | Diamicton | Clay-with-flints | Gault Formation and Upper Greensand Formation Ⓤ - Mudstone, Sandstone and Limestone |
| 28M 1375y to 28M 1705y | Grey Chalk Subgroup - Chalk | ||
| 28M 1705y to 29M 0935y | Gault Formation and Upper Greensand Formation Ⓤ - Mudstone, Sandstone and Limestone | ||
| 29M 0935y to 29M 1595y | Clay, Silt and Sand | Alluvium | Gault Formation and Upper Greensand Formation Ⓤ - Mudstone, Sandstone and Limestone |
| 29M 1595y to 30M 0055y | Gault Formation and Upper Greensand Formation Ⓤ - Mudstone, Sandstone and Limestone | ||
| 30M 0055y to 30M 1595y | Grey Chalk Subgroup - Chalk | ||
| 30M 1595y to 32M 0055y | Diamicton | Clay-with-flints | Grey Chalk Subgroup - Chalk |
| 32M 0055y to 32M 0935y | Diamicton | Clay-with-flints | White Chalk Subgroup - Chalk |
| 32M 0935y to 32M 1595y | Diamicton | Clay-with-flints | Gault Formation and Upper Greensand Formation Ⓤ - Mudstone, Sandstone and Limestone |
| 32M 1595y to 33M 0605y | Diamicton | Clay-with-flints | White Chalk Subgroup - Chalk |
| 33M 0605y to 33M 0715y | White Chalk Subgroup - Chalk | ||
| 33M 0715y to 33M 1155y | Gault Formation and Upper Greensand Formation Ⓤ - Mudstone, Sandstone and Limestone | ||
| 33M 1155y to 33M 1595y | Diamicton | Clay-with-flints | Gault Formation and Upper Greensand Formation Ⓤ - Mudstone, Sandstone and Limestone |
| 33M 1595y to 34M 0165y | Diamicton | Clay-with-flints | White Chalk Subgroup - Chalk |
| 34M 0165y to 34M 0715y | Sand and Gravel | Crag Group | Gault Formation and Upper Greensand Formation Ⓤ - Mudstone, Sandstone and Limestone |
| 34M 0715y to 35M 0385y | Gault Formation and Upper Greensand Formation Ⓤ - Mudstone, Sandstone and Limestone | ||
| 35M 0385y to 40M 1595y | Lower Greensand Group - Sandstone and Mudstone | ||
| 40M 1595y to 41M 0385y | Sand and Gravel | River Terrace Deposits Ⓤ | Lower Greensand Group - Sandstone and Mudstone |
| 41M 0385y to 41M 0715y | Clay, Silt and Sand | Alluvium | Wealden Group - Mudstone, Siltstone and Sandstone |
| 41M 0715y to 41M 0825y | Sand and Gravel | River Terrace Deposits Ⓤ | Wealden Group - Mudstone, Siltstone and Sandstone |
| 41M 0825y to 41M 1045y | Wealden Group - Mudstone, Siltstone and Sandstone | ||
| 41M 1045y to 41M 1342y | Lower Greensand Group - Sandstone and Mudstone |