Geology for ELR VTB2 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 |
|---|---|---|---|
| 9M 1501y to 10M 0825y | Sand and Gravel | River Terrace Deposits Ⓤ | Thames Group - Clay, Silt, Sand and Gravel |
| 10M 0825y to 10M 1265y | Sand and Gravel | River Terrace Deposits Ⓤ | Lambeth Group - Clay, Silt, Sand and Gravel |
| 10M 1265y to 11M 0055y | Sand and Gravel | River Terrace Deposits Ⓤ | Thanet Sand Formation - Sand, Silt and Clay |
| 11M 0055y to 11M 0385y | Sand and Gravel | River Terrace Deposits Ⓤ | White Chalk Subgroup - Chalk |
| 11M 0385y to 11M 1705y | White Chalk Subgroup - Chalk | ||
| 11M 1705y to 12M 0825y | Sand and Gravel | River Terrace Deposits Ⓤ | White Chalk Subgroup - Chalk |
| 12M 0825y to 17M 1705y | White Chalk Subgroup - Chalk | ||
| 17M 1705y to 18M 0605y | Diamicton | Clay-With-Flints | White Chalk Subgroup - Chalk |
| 18M 0605y to 18M 1045y | Diamicton | Clay-With-Flints | Grey Chalk Subgroup - Chalk |
| 18M 1045y to 19M 0825y | Gault Formation and Upper Greensand Formation Ⓤ - Mudstone, Sandstone and Limestone | ||
| 19M 0825y to 19M 1485y | Lower Greensand Group - Sandstone and Mudstone | ||
| 19M 1485y to 20M 1595y | Sand and Gravel | River Terrace Deposits Ⓤ | Lower Greensand Group - Sandstone and Mudstone |
| 20M 1595y to 21M 0683y | Lower Greensand Group - Sandstone and Mudstone |