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Volcanic features
Features formed from those igneous rocks that have reached or nearly reached the Earth's surface before solidifying. [Adapted from Glossary of Geology, 4th ed.]
Alexandria Digital Library Feature Type Thesaurus
Subtopics:
Lava fields (4 items)
Volcanoes (51 items)


Results 31 - 40 of 57 listed alphabetically [list by similarity]
Most recent updates for U.S. volcanoes [More info]
Short descriptions of recent volcanic activity in the US.
PDF Mount Rainier - Living Safely With a Volcano in Your Backyard [More info]
One of our Nation's most dangerous volcanoes, Mount Rainier has been the source of countless eruptions and volcanic mudflows, and many people live in the areas that will be affected by it.
PDF Mount St. Helens lidar [More info]
Poster available in two sizes for downloading and printing.
PDF Mount St. Helens, 1980 to now--what's going on? [More info]
Summarizes the eruptions of this spectacular volcano and the consequences for the surrounding landscape, explains how volcanoes like this form, and how we monitor their activity to mitigate hazards they pose.
Photo gallery of the Long Valley area, California [More info]
Selection of photographic images of the Long Valley area that illustrate the consequences of the past geologic history of the Sierra Nevada, Long Valley Caldera, the Mono-Inyo Craters volcanic chain, glaciation, and faulting.
Potential hazards from future volcanic eruptions in the Long Valley -- Mono Lake Area, California [More info]
An introduction to the volcano hazards in the Long Valley area based on the past geologic history of the Long Valley Caldera and the Mono-Inyo Craters volcanic chain.
Satellite technologies detect uplift in the Yellowstone Caldera [More info]
Explanation of uplift in the land surface of the northern part of the Yellowstone caldera (12cm, about ~5 inches) that occurred between 1997 and 2003, including the scientific methods by which it was detected and analyzed.
Selected volcano information [More info]
Selected books, maps, videos, and other materials produced by the USGS Volcano Hazards Program. Many products highlighted here are intended for general audiences.
PDF Sutter Buttes-the lone volcano in California's Great Valley [More info]
Explains history and structure of this unusual geologic feature.
PDF The California Volcano Observatory: monitoring the state's restless volcanoes [More info]
Summarizes where, when, how often volcanoes erupt in California, and explains how our monitoring of these features helps people avoid the hazards that they pose.
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