Search SEDIS
| Data sets | Publications | Expeditions | Thesaurus | 
| grade  | |
|---|---|
| UF | metamorphic grade | 
| RT | facies | 
| metamorphism | |
| high-grade metamorphism | |
| cutoff grade | |
| ore grade | |
| low-grade metamorphism | |
| isograds | |
| P-T conditions | |
| grade and tonnage models  | |
|---|---|
| SN | Not a valid term for GeoRef. As of 1995, use ore grade AND tonnage. | 
| graded bedding  | |
|---|---|
| BT | sedimentary structures | 
| .turbidity current structures | |
| ..graded bedding | |
| RT | planar bedding structures | 
| bedding | |
| Bouma sequence | |
| varves | |
| SN | Also index planar bedding structures if applicable (See list K.) |