Devils Tower, WyomingHalf Dome, Yosemiteexposed, hardened magmaDevils Tower, WyomingHalf Dome, Yosemite, CAKilauea Volcano's summit caldera, HICaldera After an eruption, the magma reservoir of a volcano may be partially emptied. Some volcanoes collapse into this chamber, forming a large depression on the surface called a caldera.Volcanic Necks & Dome MountainsVolcanic necks are the remnants of a volcanic plug within a previously active volcano. The hardened magma is exposed by weathering and erosion. A dome mountain is magma that hardens below the crust and is uplifted.caldera(lake forms)cinder coneMount Pinatubo caldera, PhillipinesPuu Oo caldera, Hawaiicalderacalderamagma chamberpartially emptiedHot Springs and GeysersMagma that exists very close to the Earth's surface can warm the groundwater. Hot springs and geysers are formed when this water emerges on the surface of the Earth.hot springsgeyserOld FaithfulSome photos courtesy of USGS & NPS.Volcanic Landforms, Hot Springs & Geysers© Copyright NewPath Learning. All Rights Reserved. 94-4540Visit www.newpathlearning.com for Online Learning Resources.
< Page 9 | Page 11 >