<?xml version="1.0" encoding="utf-8"?><mads xmlns="http://www.loc.gov/mads/" xmlns:mods="http://www.loc.gov/mods/v3" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.loc.gov/mads/
mads.xsd"><authority><topic authority="http://AATesaurus.cultura.gencat.cat/aat/getty_en">underwater archaeology</topic></authority><related type="other"><topic>maritime history</topic></related><related type="broader"><topic>archaeology</topic></related><variant type="other"><topic>nautical archaeology</topic></variant><variant type="other"><topic>submarine archaeology</topic></variant><variant type="other"><topic>underwater archeology</topic></variant><variant type="other"><topic>archaeology, marine</topic></variant><variant type="other"><topic>archaeology, nautical</topic></variant><variant type="other"><topic>archaeology, submarine</topic></variant><variant type="other"><topic>archaeology, underwater</topic></variant><variant type="other"><topic>archeology, underwater</topic></variant><variant type="other"><topic>marine archaeology</topic></variant> <note xml:lang="en"><![CDATA[ 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. ]]></note></mads>