U.S. DEPARTMENT OF THE INTERIOR U.S. GEOLOGICAL SURVEY

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Date: 2012-02-27 13:27:37 Volcanic rocks Igneous rocks Tephra Tuff Long Valley Caldera Types of volcanic eruptions Caldera Volcano Volcanic cone Geology Petrology Volcanology		U.S. DEPARTMENT OF THE INTERIOR U.S. GEOLOGICAL SURVEY Add to Reading List Source URL: pubs.usgs.gov Download Document from Source Website File Size: 1,14 MB Share Document on Facebook

	Why so many earthquakes in the Kīlauea summit area? The floor of Kīlauea Caldera continues to subside as pressure in the magma reservoir decreases in response to withdrawal of magma towards the East Rift Zone. This is DocID: 1urKr - View Document
	UNIVERSITY OF OREGON FIELD TRIP Quack! Quack! Go Ducks! Travel to University of Oregon and join Portland Caldera students to tour campus and learn about exciting opportunities for after high school! DocID: 1tM5c - View Document
	SPRING WEEKEND INTENSIVE SATURDAY, APRIL 29 & SUNDAY, APRIL 30 9:30 A.M.–4:00 P.M. Join us for the 2017 Caldera Spring Weekend Intensive! All Portland DocID: 1tJ4z - View Document
	CENTRAL OREGON SPRING WEEKEND INTENSIVE SATURDAY & SUNDAY, Join us for the 2016 Caldera Spring Weekend Intensive! All APRIL 9 & 10 Central Oregon Caldera middle and high school students are 9:30 A.M.–4:00 P.M. invited DocID: 1tFGX - View Document
	CENTRAL OREGON FALL WEEKEND INTENSIVE SATURDAY & SUNDAY, Join us for the 2016 Caldera Fall Weekend Intensive! All Central NOVEMBER 5 & 6 Oregon Caldera middle and high school students are invited for 10:00 A.M.–4:00 P. DocID: 1tDDJ - View Document