<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/schema/zthes-1.0.dtd">  <Zthes><term><termId>3860</termId><termName>Petrología estructural</termName><termType>PT</termType><termLanguage>es</termLanguage><termVocabulary>INDICES DE MATERIAS</termVocabulary>	<termStatus>active</termStatus>	<termApproval>approved</termApproval>	<termSortkey>Petrología estructural</termSortkey><termNote label="Source"><![CDATA[ 552 ]]></termNote><termCreatedDate>Petrología estructural</termCreatedDate><relation><relationType>UF</relationType><termId>4553</termId><termName>Petrología</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>4554</termId><termName>Petrotectónica</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>4518</termId><termName>Área 12. Petrografía y Petrología</termName><termType>PT</termType></relation><relation><relationType>RT</relationType><termId>3856</termId><termName>Metamorfismo (Geología)</termName><termType>PT</termType></relation><relation><relationType>RT</relationType><termId>4314</termId><termName>Metasomatismo (Mineralogía)</termName><termType>PT</termType></relation><relation><relationType>RT</relationType><termId>4549</termId><termName>Petrogénesis</termName><termType>PT</termType></relation></term>  </Zthes>