Search SEDIS
| Data sets | Publications | Expeditions | Thesaurus | 
| stratigrap  | 
|---|
| stratigraphic  | |
|---|---|
| SN | A valid term through 1977. After 1977, use stratigraphic maps. | 
| stratigraphic boundary  | |
|---|---|
| NT | K-T boundary | 
| Permian-Triassic boundary | |
| UF | boundaries, stratigraphic | 
| RT | allostratigraphy | 
| stratigraphy | |
| stratigraphic columns | |
| stratotypes | |
| SN | Before 1993, also search boundary which was used for this concept from 1978-1992. Use in combination with appropriate age terms (list E). Added to Thesaurus in 1993. | 
| stratigraphic columns  | |
|---|---|
| RT | cross sections | 
| stratigraphic boundary | |
| stratigraphic units | |
| stratigraphy | |
| stratotypes | |
| type sections | |
| SN | Added to Thesaurus in 1982. | 
| stratigraphic controls  | |
|---|---|
| RT | controls | 
| lithologic controls | |
| mineral deposits, genesis | |
| structural controls | |
| SN | As of 1993, restricted to economic studies. | 
| stratigraphic correlation  | |
|---|---|
| USE | correlation | 
| 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. | 
| stratigraphic geology  | |
|---|---|
| USE | stratigraphy | 
| stratigraphic maps  | |
|---|---|
| BT | maps | 
| .stratigraphic maps | |
| RT | structural maps | 
| SN | Before 1978, search maps AND stratigraphic. | 
| stratigraphic range  | |
|---|---|
| USE | range | 
| stratigraphic units  | |
|---|---|
| UF | strata | 
| units, stratigraphic | |
| RT | allostratigraphy | 
| stratigraphy | |
| biozones | |
| stratigraphic columns | |
| tectonostratigraphic units | |
| lithostratigraphy | |
| stratigraphic wedges  | |
|---|---|
| UF | pinch-outs | 
| pinchouts | |
| RT | oil and gas fields | 
| stratigraphy | |
| petroleum | |
| petroleum exploration | |
| reservoir rocks | |
| natural gas | |
| lithofacies | |
| lithostratigraphy | |
| petroleum accumulation | |
| stratigraphic traps | |
| SN | Used for beds that pinch out. Added to Thesaurus in 1981. | 
| stratigraphy  | |
|---|---|
| UF | stratigraphic geology | 
| RT | biogeography | 
| biomarkers | |
| allostratigraphy | |
| aminostratigraphy | |
| biostratigraphy | |
| continental drift | |
| catalogs | |
| bibliography | |
| Continental Offshore Stratigraphic Test | |
| cross sections | |
| correlation | |
| biozones | |
| chemostratigraphy | |
| chronostratigraphy | |
| cyclostratigraphy | |
| diachroni | |
| SN | Used for the discipline as a whole. |