Search SEDIS
| Data sets | Publications | Expeditions | Thesaurus |
trap rock  | |
|---|---|
| USE | trap rocks |
| trap rocks | |
|---|---|
| BT | igneous rocks |
| .volcanic rocks | |
| ..basalts | |
| ...trap rocks | |
| UF | trap rock |
| RT | aggregate |
| construction materials | |
| diabase | |
| SN | For petroleum and natural gas, use traps if applicable. |