# outer core

> fluid layer composed of mostly iron and nickel between Earth's solid inner core and its mantle

**Wikidata**: [Q857867](https://www.wikidata.org/wiki/Q857867)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Earth's_outer_core)  
**Source**: https://4ort.xyz/entity/outer-core


## References

1. Freebase Data Dumps. 2013
2. [OpenAlex](https://docs.openalex.org/download-snapshot/snapshot-data-format)