<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31412313</termId><termName>silcrete</termName><termType>PT</termType><termNote><![CDATA[ A very hard crust in or on soil formed of sand grains or pebbles glued together by silica; a quartzite. ]]></termNote><termCreatedDate>2026-03-30 20:50:51</termCreatedDate><relation><relationType>BT</relationType><termId>31375464</termId><termName>quartzite</termName><termType>PT</termType></relation></term>  </Zthes>