# greenstone belt

> zone of variably metamorphosed (ultra)mafic volcanic sequences with associated sedimentary rocks occurring in Archaean and Proterozoic cratons between granite and gneiss bodies, typically dozens to thousands of kilometres long

**Wikidata**: [Q595991](https://www.wikidata.org/wiki/Q595991)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Greenstone_belt)  
**Source**: https://4ort.xyz/entity/greenstone-belt


## References

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