<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/schema/zthes-1.0.dtd">  <Zthes><term><termId>3815</termId><termName>Petrografía</termName><termType>PT</termType><termLanguage>es</termLanguage><termVocabulary>INDICES DE MATERIAS</termVocabulary>	<termStatus>active</termStatus>	<termApproval>approved</termApproval>	<termSortkey>Petrografía</termSortkey><termNote label="Scope"><![CDATA[ Bajo nombres de variedades de rocas, p. ej: Granito. ]]></termNote><termNote label="History"><![CDATA[ Se puede usar con un subencabezamiento geográfico. ]]></termNote><termNote label="Source"><![CDATA[ <p><strong>CDU</strong>: 552</p> ]]></termNote><termCreatedDate>Petrografía</termCreatedDate><relation><relationType>UF</relationType><termId>4551</termId><termName>Litología</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>4552</termId><termName>Petrología</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>BT</relationType><termId>12502</termId><termName>Area 03. Geografía general física</termName><termType>PT</termType></relation><relation><relationType>RT</relationType><termId>3805</termId><termName>Geoquímica</termName><termType>PT</termType></relation><relation><relationType>RT</relationType><termId>3850</termId><termName>Facies (Geología)</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>29</termId><termName>Geología</termName><termType>PT</termType></relation><relation><relationType>RT</relationType><termId>973</termId><termName>Geología física</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><relation><relationType>RT</relationType><termId>24</termId><termName>Mineralogía</termName><termType>PT</termType></relation><relation><relationType>RT</relationType><termId>3816</termId><termName>Rocas</termName><termType>PT</termType></relation><relation><relationType>RT</relationType><termId>3914</termId><termName>Ciencias</termName><termType>PT</termType></relation></term>  </Zthes>