# TAS classification

> system to assign names to many common types of volcanic rocks based upon the relationships between the combined alkali content and the silica content

**Wikidata**: [Q1753363](https://www.wikidata.org/wiki/Q1753363)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/TAS_classification)  
**Source**: https://4ort.xyz/entity/tas-classification


## References

1. Freebase Data Dumps. 2013