Search SEDIS
| Data sets | Publications | Expeditions | Thesaurus |
KREEP  | |
|---|---|
| UF | nonmare basalt |
| RT | Moon |
| rare earths | |
| phosphorus | |
| potassium | |
| SN | Acronym for a basaltic lunar rock type first found in Apollo 12 fines and breccias and characterized by unusually high contents of potassium (K), rare-earth elements (REE), phosphorus (P), and other trace elements in comparison to other lunar rock types. |