Vaulted earthen roofs [RE1] - jcgomezz/Building_taxonomy GitHub Wiki

These systems include earthen domes and vaults.

Earthen masonry domes, Iran (F. Naeim, World Housing Encyclopedia Report 104)

Collapse of earthen buildings with domed roofs in the 2003 Bam, Iran earthquake (F. Naeim, World Housing Encyclopedia Report 104)