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![]() Date: 2003-05-06 22:54:47Tephra Petrology Sediments Sedimentary rocks Bruneau-Jarbidge caldera Pyroclastic rock Volcanic ash Ashfall Fossil Beds Loess Geology Volcanology Volcanic rocks | Source URL: www.geo.mtu.eduDownload Document from Source WebsiteFile Size: 413,53 KBShare Document on Facebook |