<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31457325</termId><termName>felsite</termName><termType>PT</termType><termNote><![CDATA[ A general term applied to light-colored, aphanitic acid igneous rock, composed mainly of feldspar and quartz and which may or may not contain phenocrysts. ]]></termNote><termCreatedDate>2026-03-30 21:03:05</termCreatedDate><relation><relationType>UF</relationType><termId>31457326</termId><termName>aphanite</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31457327</termId><termName>aphanites</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31457328</termId><termName>felsites</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31438505</termId><termName>acid igneous rock</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31471229</termId><termName>trachyte</termName><termType>PT</termType></relation></term>  </Zthes>