<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31320365</termId><termName>tephra</termName><termType>PT</termType><termNote><![CDATA[ Collective term for all clastic material ejected from a volcano during an eruption, especially ash. ]]></termNote><termCreatedDate>2026-03-30 20:26:21</termCreatedDate><relation><relationType>BT</relationType><termId>31306080</termId><termName>pyroclastic material</termName><termType>PT</termType></relation><relation><relationType>RT</relationType><termId>31351755</termId><termName>volcanoes</termName><termType>PT</termType></relation><relation><relationType>RT</relationType><termId>31318470</termId><termName>tephrochronology</termName><termType>PT</termType></relation></term>  </Zthes>