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Geologic structure
General position of rocks in an area, and geometrical relationships among rocks.
Subtopics:
Structure contours (2 items)
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Results 31 - 37 of 37 listed by similarity [list alphabetically]
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.
Schlumberger soundings at the Amargosa Desert Research Site, Nevada [More info]
Report presenting the data, automatic interpretations, cross sections, and resistivity maps of direct current electrical soundings at the Amargosa Desert Research Site near Beatty, Nevada using a Schlumberger array.
Seismic properties of North America and the surrounding ocean basins [More info]
Presentation of maps of the seismic properties of North America and the surrounding ocean basins compiled from seismic refraction and reflection data, earthquake studies, and surface wave analyses showing crustal thickness and geologic provinces.
Southern California Mapping Project (SCAMP) [More info]
Description of the SCAMP project to produce geologic and geophysical maps and reports that describe the geologic setting and geologic history of southern California.
PDF Sutter Buttes-the lone volcano in California's Great Valley [More info]
Explains history and structure of this unusual geologic feature.
The Chesapeake Bay bolide: modern consequences of an ancient cataclysm [More info]
Presentation that the location of Chesapeake Bay may have been predetermined by a Eocene bolide, an extraterrestrial body, impacting the Earth in the vicinity of the Delmarva Peninsula at high velocity and exploding to create a large crater.
USGS geology in the parks [More info]
U.S. Geological Survey and National Park Service virtual geology sites organized by geology topics and individual parks.
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