# core sample

> cylindrical section of a naturally occurring substance, usually obtained by drilling into it with special drills

**Wikidata**: [Q1942237](https://www.wikidata.org/wiki/Q1942237)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Core_sample)  
**Source**: https://4ort.xyz/entity/core-sample


## References

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