| Alluvial and reworked deposits |
| Eruptive centre |
| Lava flows, domes, and associated deposits |
| Major scarp feature-possible collapse scars |
| Pyroclastic deposits of Soufriere volcanic centres |
| Pyroclastic deposits of pre-Soufriere volcanic centres |
| Red scoria deposits of spatter cones |
| Undifferentiated volcaniclastics and lavas of Grand Bonhomme V.C. |
| Unknown |
| Yellow Tephra underlain by volcaniclastics |