# geological formation

> body of rock identified by lithic characteristics and stratigraphic position; it is usually but not necessarily tabular and is mappable at the Earth's surface or traceable in the subsurface. Smaller than a subgroup

**Wikidata**: [Q736917](https://www.wikidata.org/wiki/Q736917)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Geological_formation)  
**Source**: https://4ort.xyz/entity/geological-formation


## References

1. [Nuovo soggettario](https://thes.bncf.firenze.sbn.it/termine.php?id=33613)
2. Freebase Data Dumps. 2013
3. YSO-Wikidata mapping project
4. National Library of Israel
5. KBpedia
6. GF WordNet