<?xml version="1.0" encoding="utf-8"?><metadata xmlns:dc="http://purl.org/dc/elements/1.1/"  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:dcterms="http://purl.org/dc/terms/"><dc:title xml:lang="en">trace elements</dc:title><dc:identifier>http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31343478</dc:identifier><dc:language>en</dc:language><dc:publisher xml:lang="en">Getty Institute</dc:publisher><dcterms:created>2026-03-30 20:32:38</dcterms:created><dcterms:isPartOf xsi:type="dcterms:URI">http://AATesaurus.cultura.gencat.cat/aat/getty_en</dcterms:isPartOf><dcterms:isPartOf xml:lang="en">Tesaurus d&apos;Art i Arquitectura</dcterms:isPartOf><dc:format>text/html</dc:format> <dcterms:alternative xml:lang="en">accessory elements</dcterms:alternative> <dcterms:alternative xml:lang="en">elements, accessory</dcterms:alternative> <dcterms:alternative xml:lang="en">elements, guest</dcterms:alternative> <dcterms:alternative xml:lang="en">elements, minor</dcterms:alternative> <dcterms:alternative xml:lang="en">elements, trace</dcterms:alternative> <dcterms:alternative xml:lang="en">guest elements</dcterms:alternative> <dcterms:alternative xml:lang="en">metals, trace</dcterms:alternative> <dcterms:alternative xml:lang="en">microelements</dcterms:alternative> <dcterms:alternative xml:lang="en">minor elements</dcterms:alternative> <dcterms:alternative xml:lang="en">trace element</dcterms:alternative> <dcterms:alternative xml:lang="en">trace metals</dcterms:alternative> <dc:description xml:lang="en"><![CDATA[ Elements found in minute quantities in minerals, not essential to their composition but found in their structure or adsorbed on their surface, conventionally held to constitute significantly less than 1.0% of the mineral. Use also for elements found in plant and animal tissue in concentrations of 1.0% or less, which are physiologically essential to the organism. ]]></dc:description></metadata>