<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31438502</termId><termName>dacite</termName><termType>PT</termType><termNote><![CDATA[ An extrusive acid igneous rock that is sometimes partly glassy and is composed of plagioclase and quartz with biotite, hornblende, or pyroxene. ]]></termNote><termCreatedDate>2026-03-30 20:58:11</termCreatedDate><relation><relationType>BT</relationType><termId>31438505</termId><termName>acid igneous rock</termName><termType>PT</termType></relation><relation><relationType>BT</relationType><termId>31412239</termId><termName>extrusive rock</termName><termType>PT</termType></relation></term>  </Zthes>