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Geology
Study of the planet earth, its composition, structure, physical and chemical processes, and history since its origin.
Subtopics:
Economic geology (143 items)
Geochronology (23 items)
Geomorphology (42 items)
Hydrogeology (37 items)
Marine geology (52 items)
Mineralogy (14 items)
Petrology (2 items)
Sedimentology (19 items)
Stratigraphy (8 items)
Structural geology (7 items)
Volcanology (59 items)

Subsurface maps (93 items)
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Results 1 - 10 of 450 listed by similarity [list alphabetically]
Geology and hydrogeology of the Florida Keys [More info]
Article on geology and hydrogeology of the Florida Keys with sections on Holocene and Pleistocene geology, water resources, and introduction with a brief history and overview of early studies.
Geology of Death Valley National Park [More info]
Site has links to Death Valley's geologic history, rocks and minerals, geologic time, geologic maps.
Geology of Lake Meade National Recreation Area [More info]
Site has links to Lake Mead National Recreation Area: geologic field trips, geologic history, plate tectonics, rocks and minerals, geologic time, geologic maps, and glossary.
Geology of Mojave National Preserve [More info]
Site has links to Mohave National Preserve: geologic field trips, geologic history, plate tectonics, rocks and minerals, geologic time, geologic maps, and glossary.
PDF Geology of National Parks [More info]
Two sheets of 3D images showing geologic features of many National Parks. Red-and-cyan viewing glasses are need to see the three-dimensional effect.
Geology of Sunset Crater Volcano National Monument [More info]
Site has links to Sunset Crater Volcano National Monument geologic field trips, geologic history, plate tectonics, rocks and minerals, geologic time, geologic maps, and glossary.
Geology of the Chesapeake and Ohio Canal National Historical Park and Potomac River Corridor, District of Columbia, Maryland, West Virginia, and Virginia [More info]
Rocks representing a variety of tectonic and depositional environments outcrop along the canal and towpath and reveal the geologic history of the central Appalachian region from the Mesoproterozoic to Jurassic Period.
Geology of the onshore part of San Mateo County, California: a digital database [More info]
This digital map database represents the general distribution of the geology (bedrock and surficial deposits) in San Mateo County. Accompanying text file (*.txt or *.ps) provides current information on the geologic structure and stratigraphy.
Geology research and information [More info]
Alternative web access to geological, geochemical, and geophysical research programs that are divided among the new USGS mission areas.
Geology, geochemistry and geophysics of sedimentary rock-hosted gold deposits in China [More info]
Second report of a joint project with the Tianjin Geological Academy to study sedimentary rock-hosted Au deposits in China.
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