thumb|upright=1.35|Diagram illustrating the structural relationship between grabens and horsts upright=1.35|thumb|Infrared-enhanced satellite image of a graben in the Afar Triangle|Afar Depression
thumb|upright=1.35|Diagram illustrating the structural relationship between grabens and horsts upright=1.35|thumb|Infrared-enhanced satellite image of a graben in the Afar Triangle|Afar Depression
In geology, a graben () is a depressed block of the crust of a planet or moon, bordered by parallel normal faults.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).