# principle of original horizontality

> layers of sediment are deposited approximately horizontally under the action of gravity

**Wikidata**: [Q2362281](https://www.wikidata.org/wiki/Q2362281)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Principle_of_original_horizontality)  
**Source**: https://4ort.xyz/entity/principle-of-original-horizontality


## References

1. Freebase Data Dumps. 2013