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news-000650		Geologists find key indicator of carbon sources in Earth's mantle | News | Notre Dame News | University of Notre Dame			.html	text/html	644	16	35	News | Notre Dame News | 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 › Geologists find key indicator of carbon sources in Earth's mantle Geologists find key indicator of carbon sources in Earth's mantle Published: November 09, 2016 Author: Jessica Sieff Scientists have found a key indicator in determining whether the presence of carbon, found in the Earth’s mantle, is derived from continental crust – a step toward better understanding the history of crustal formation on Earth’s surface and the rate at which tectonic plates have moved throughout geologic time, which can be linked to the cooling of Earth’s mantle.	cache/news-000650.html	txt/news-000650.txt