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Results 11 - 20 of 115 for 'subduction' <<  1 2 3 4 5 6  >>
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This site features Flash animations that illustrate various facets of the rock cycle. The visualizations depict rock-forming processes, such as erosion, transportation, deposition, cementation, crystallization, subduction, and eruption, that create sedimentary, igneous, and metamorphic rocks. They also show cooling environments that result in varied crystal sizes and demonstrate igneous rock classification. ... Full description.
Grade level: High (9-12), College (13-14), College (15-16)
Resource type: Illustration - scientific, Photograph
Subject: Geochemistry, Geology, Mineralogy or petrology
 
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Misconceptions: Read (1)
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Cutting Edge    Browse collection
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Step-by-step instructions walk users through working with data from a seismic wave model in a freely available GIS (geographic information system) program, ESRI's ArcVoyager SE. Users generate and examine maps and produce graphs to explore variations in seismic wave velocities at depths of 28 and 100 km below Earth's surface. By examining and analyzing GIS-ready data, users visualize density changes ... Full description.
Grade level: High (9-12), College (13-14)
Resource type: Computer activity, Map, Visualization - scientific
Subject: Physical geography, Geology, Geophysics, Technology
 
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Educational standards associated with this resource:
National Science Education Standards (NSES), National Geography Standards: Read
Pedagogical help
Skills: Read (1)
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Earth Exploration Toolbook (EET)    Browse collection
Pedagogically Annotated Collection     Browse collection
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This site contains information about discoveries made after World War II when ocean-going geologists adapted sensitive magnetometers developed for antisubmarine warfare for use in seafloor research. This modern technology gave geologists their greatest boost in more than a century of field work and led to the idea of sea floor spreading. This site has animations showing sea-floor spreading and a magnetometer ... Full description.
Grade level: Middle (6-8), High (9-12)
Resource type: Illustration - scientific, Ref. material
Subject: Geology, Physical oceanography
 
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Educational standards associated with this resource:
National Science Education Standards (NSES): Read
Examples of use
Read (1)
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DLESE Community Collection (DCC)    Browse collection
Teaching Boxes     Browse collection
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This site examines the variability of volcanic environments and the physical and chemical controls on eruption dynamics. Environments of volcanism are discussed in terms of plate tectonic theory and include spreading center, subduction zone, and interplate volcanism along with a detailed discussion of the Earth's structure and internal heat. Physical and chemical controls of eruption dynamics include ... Full description.
Grade level: High (9-12), College (13-14)
Resource type: Photograph, Ref. material
Subject: Geochemistry, Geology, Geophysics
 
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Educational standards associated with this resource:
National Science Education Standards (NSES): Read
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DLESE Community Collection (DCC)    Browse collection
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This article profiles the work of Elise Knittle, whose research specialty is mineral physics. The essay gives an overview of the core, mantle, and crust of the Earth, including what we know about their physical properties. It explains the work of the author, studying the chemical interactions between the metals that make up the Earth's core and the silicate minerals that compose the mantle. The obstacles ... Full description.
Grade level: High (9-12), College (13-14)
Resource type: Ref. material
Subject: Chemistry, Geology, Geophysics
 
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Educational standards associated with this resource:
National Science Education Standards (NSES): Read
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This site contains information about the general model geologists have developed to explain how most mountain ranges form. This model suggests that mountain building involves three stages, which are accumulation of sediments, an orogenic period of rock deformation and crustal uplift, and a period of crustal uplift caused by isostatic rebound and block-faulting. The later two stages of this model involve ... Full description.
Grade level: High (9-12), College (13-14)
Resource type: Illustration - scientific, Map, Ref. material
Subject: Geology, Geophysics
 
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Educational standards associated with this resource:
National Science Education Standards (NSES): Read
Examples of use
Read (1)
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DLESE Community Collection (DCC)    Browse collection
Teaching Boxes     Browse collection
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Tides, currents, shelf slope, and geologic history all influence how coastline features are broken down or built up. However, more than any other factors, wave energy and coastal rock type influence the erosional processes that shape rocky coastlines. This interactive feature provides an introduction to the landforms and features which are characteristic of rocky coastlines, high-energy environments ... Full description.
Grade level: Middle (6-8), High (9-12)
Resource type: Computer activity, Illustration - scientific, Photograph, Ref. material
Subject: Geology
 
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Recordings on this site present 164 aftershocks as they were heard at one seismic recording station. They occurred after an earthquake with a magnitude of 6.2 beneath and near New Zealand. All events are heard in rapid sequence, without the true time intervals between them. The main shock was at a depth of 30 kilometers, 10 kilometers below the interface between the subducting Pacific Plate and the ... Full description.
Grade level: Graduate / Professional
Resource type: Ref. material, Sound
Subject: Geophysics
 
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This introduction to plate tectonics covers plates and boundaries, subduction zones, colliding continents, plumes, and earthquakes. There is also more advanced material on buoyancy, floating continents, and rates of isostasy; sedimentation, continental growth, rifts and creation of continental margins, passive and active margins, and island arcs and back-arc basins; continental collision, folding ... Full description.
Grade level: College (13-14)
Resource type: Illustration - scientific, Ref. material
Subject: Geology
 
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This map of world seismicity illustrates earthquake data for the years 1991 through 1996. It is intended to provide a sense of the depth distribution of earthquakes. Plate boundaries are shown, along with diffuse regions of seismicity, such as in central Asia, and earthquake locations are color-coded to indicate the depths at which they occurred. In addition to the map, selected cross-sections of ... Full description.
Grade level: Middle (6-8), High (9-12), College (13-14)
Resource type: Illustration - scientific, Map, Modeled dataset
Subject: Geology, Geophysics
 
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DLESE Community Collection (DCC)    Browse collection
Results 11 - 20 of 115 for 'subduction' <<  1 2 3 4 5 6  >>