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Rocks and deposits
Solid masses that make up the earth's crust as well as accumulations of materials. Use for major rock types and unconsolidated deposits. For deposits of economic value, see related terms.
Subtopics:
Permafrost (2 items)
Fossils (14 items)
Igneous rocks (10 items)
Metamorphic rocks (2 items)
Sedimentary rocks (14 items)
Unconsolidated deposits (20 items)
Petroleum (79 items)

Lithologic maps (17 items)
Related topics:
Results 91 - 100 of 156 listed alphabetically [list by similarity]
Fossils, rocks, and time [More info]
Booklet describes how paleontologists use the identification of fossils to recognize rocks of the same or different ages.
Geochemical sediment analysis procedures [More info]
Manual of chemical sediment analysis using Coulometer and CHN Analyzers to measure carbon content, spectrometric analysis for biogenic silica, and radiochemistry to measure isotopes. Includes techniques,sample preparation, and safety procedures.
PDF Geologic hazards at volcanoes [More info]
Poster diagram showing the various hazards that accompany volcanic activity as they relate to the structure of the volcano.
Geologic map of the Eagle quadrangle, Eagle County, Colorado [More info]
The Eagle quadrangle covers an area that straddles the Eagle River and Interstate 70 (I-70) and it includes the town of Eagle, Colo., which is located in the southwestern part of the quadrangle, just south of I-70 and the Eagle River, about 37 km west of
Geologic mapping in National Parks: National Park Service Support Project [More info]
Summaries of geologic projects in cooperation with the National Park Service including Grand Canyon National Park, Lake Mead National Recreation Area, Golden Gate National Recreation Area, Joshua Tree National Park, Yosemite National Park, and others.
Geologic time online edition [More info]
Booklet giving general explanations of geologic time, major divisions of geologic time, relative and radiometric time scales, index fossils, and the age of the earth.
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.
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.
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