id author title date pages extension mime words sentence flesch summary cache txt news-005434 Notre Dame geologists’ discovery should cause earth scientists to rethink chemical makeup of Earth’s mantle | News | Notre Dame News | University of Notre Dame .html text/html 790 22 28 University of Notre Dame Skip To Content Skip To Navigation Skip To Search University of Notre Dame Notre Dame News Experts ND in the News Subscribe About Us Home Contact Search Menu Home › News › Notre Dame geologists’ discovery should cause earth scientists to rethink chemical makeup of Earth’s News | Notre Dame News | cache/news-005434.html txt/news-005434.txt