ashfall
1Ashfall Fossil Beds — Geobox|Protected Area name = Ashfall Fossil Beds State Historical Park native name = other name = other name1 = category local = Nebraska State Historical Park category iucn = III image caption = The hills surrounding the fossil beds etymology… …
2ashfall — noun Date: 1923 a deposit of volcanic ash …
3ashfall — ˈ ̷ ̷ˌ ̷ ̷ noun Etymology: ash (III) + fall : a deposit of volcanic ash called also ash shower …
4Liste des parcs d'État du Nebraska — Ashfall Fossil Beds Ashfall Foss …
5Volcanic ash — consists of small tephra, which are bits of pulverized rock and glass created by volcanic eruptions,United States Geological Survey. [http://volcanoes.usgs.gov/Hazards/What/Tephra/tephra.html Tephra: Volcanic Rock and Glass Fragments.] Retrieved… …
6Mount Pinatubo — The eruption column of Mount Pinatubo on June 12, 1991, three days before the climactic eruption. Elevation …
7Teleoceras — Taxobox name = Teleoceras fossil range = early Miocene to early PlioceneProthero, 2005, pp. 189 194.] image width = 250px image caption = Teleoceras regnum = Animalia phylum = Chordata classis = Mammalia ordo = Perissodactyla familia =… …
8Supervolcano — A supervolcano is a volcano capable of producing a volcanic eruption with an ejecta volume greater than 1,000 cubic kilometers (240 cubic miles). This is thousands of times larger than most historic volcanic eruptions.[1] Supervolcanoes can occur …
9Yellowstone hotspot — Schematic of the hotspot and the Yellowstone Caldera Location of the hotspot in …
10Bruneau-Jarbidge caldera — The Bruneau Jarbidge caldera (sometimes called a supervolcano) is located in present day southwest Idaho. The volcano erupted during the Miocene, between ten and twelve million years ago, spreading a thick blanket of ash in the Bruneau Jarbidge… …
