Hierarchy classification:

1. top of the aat hierarchies
2. Activities Facet
3. Disciplines (hierarchy name)
4. disciplines (concept)
5. social sciences
6. archaeology

Anotations

Scope note:

Branch of archaeology that deals with the recovery of ancient objects found beneath the sea, as shipwrecks or remains from submerged human settlements, and with the techniques of underwater exploration, excavation, and retrieval.