Search SEDIS
| Data sets | Publications | Expeditions | Thesaurus |
stratigraphic gaps  | |
|---|---|
| UF | gaps, stratigraphic |
| hiatus, stratigraphic | |
| RT | stratigraphy |
| unconformities | |
| hardground | |
| lithostratigraphy | |
| SN | Before 1998, also search hiatus or hiatuses. Added to Thesaurus in 1981. |