Geology for ELR PAA2 is based on British Geological Survey (BGS) low-resolution data sampled at 100 metre intervals along the ELR. The geology presented should not be treated as accurate or complete. Data marked with Ⓤ is classed as undifferentiated by the BGS.
| Mileage | Material | Deposit | Bedrock |
|---|---|---|---|
| 39M 0437y to 39M 0935y | Gault Formation and Upper Greensand Formation Ⓤ - Mudstone, Sandstone and Limestone | ||
| 39M 0935y to 42M 1265y | Lower Greensand Group - Sandstone and Mudstone | ||
| 42M 1265y to 43M 1045y | Sand and Gravel | River Terrace Deposits Ⓤ | Gault Formation and Upper Greensand Formation Ⓤ - Mudstone, Sandstone and Limestone |
| 43M 1045y to 43M 1375y | Gault Formation and Upper Greensand Formation Ⓤ - Mudstone, Sandstone and Limestone | ||
| 43M 1375y to 45M 1705y | Sand and Gravel | River Terrace Deposits Ⓤ | Gault Formation and Upper Greensand Formation Ⓤ - Mudstone, Sandstone and Limestone |
| 45M 1705y to 46M 1375y | Gault Formation and Upper Greensand Formation Ⓤ - Mudstone, Sandstone and Limestone | ||
| 46M 1375y to 49M 0495y | Grey Chalk Subgroup - Chalk | ||
| 49M 0495y to 49M 1270y | Sand and Gravel | River Terrace Deposits Ⓤ | Grey Chalk Subgroup - Chalk |