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This spiral graph visualization, which includes both marine and terrestrial components, represents 4.5 billion years of geologic time. Stratigraphy, paleontology, and geochronology study results provide evidence in support of this old earth. This graphical representation is from an article called Age of the Earth. Full description.
Grade level: Informal, General public
Resource type: Illustration - scientific
Subject: Geologic time
 
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This resource provides illustrated lecture notes from a geochemistry course offered by Dr. Scott Wood at the University of Idaho. Topics include the law of radioactivity and the general geochronometry equation, the use common radioactive decay equations such as K-Ar, Ar-Ar, Rb-Sr, and U-Th-Pb, the use of isochrones, concordia diagrams and discordia, the concept of "blocking temperature," the use of ... Full description.
Grade level: College (15-16)
Resource type: Problem set, Visualization - scientific, Ref. material
Subject: Geochemistry, Geologic time
 
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This site provides access to a number of visual resources and supporting material illustrating the concept of radioactive decay and its central role in radiometric dating. Visualizations include diagrams, graphs, static illustrations and photos. Resources found on this site are suitable for use in lectures and classes and may also be used as the basis for labs or other activities. Full description.
Grade level: High (9-12), College (13-14), College (15-16), Graduate / Professional
Resource type: Illustration - scientific, Photograph, Visualization - scientific, Abstract / Summary, Clearinghouse
Subject: Geochemistry, Geologic time
 
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Pedagogical help
Misconceptions: Read (1)
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This collection provides a wide array of visual resources and supporting material about plate tectonic movements. Visualizations include simple animations, GIS-based animated maps, paleogeographic maps and globes, and numerous illustrations and photos. This collection is not exhaustive but does represent some of the best sources for teaching. Resources can be incorporated into lectures, labs, or other ... Full description.
Grade level: High (9-12), College (13-14), College (15-16), Graduate / Professional
Resource type: Illustration - scientific, Map, Photograph, Video, Visualization - scientific, Abstract / Summary, Clearinghouse
Subject: Geologic time, Structural geology
 
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The Climate Timeline (CTL) is a tool for examining climate change and variability at different time scales (days, months, decades, centuries). This site defines variability, links to related resources and offers an interactive climatic variance visualization. It is supported by the Cooperative Institute for Research in Environmental Sciences (CIRES), the NOAA Paleoclimatology Program, and the National ... Full description.
Grade level: High (9-12), College (13-14)
Resource type: Illustration - scientific, Ref. material
Subject: Climatology, Geologic time
 
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This site presents a series of paleogeographic and plate-tectonic reconstructions that illustrate the broad patterns of the Earth's structural history. Reconstructions of North America, the Mediterranean, Central and Southern Asia, and global views are organized by both geographic region and time period and may be viewed by either category. There is also a Time Slice feature which gives a brief summary ... Full description.
Grade level: College (15-16), Graduate / Professional
Resource type: Map, Visualization - scientific
Subject: Geologic time, Geology, Structural geology
 
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This site provides numerous diagrams, maps, and cross sections of the terranes and tectonic elements of the Canadian Cordillera and northwestern North America. The site also features several abstracts about the source and mineralogy of Cordilleran rocks and whether or not terranes are of a native or exotic origin. Full description.
Grade level: College (15-16), Graduate / Professional
Resource type: Map, Visualization - scientific, Abstract / Summary
Subject: Geologic time, Geology, Structural geology
 
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This website hosts an animation depicting how cast and mold fossils are preserved in the rock record. Users can play, rewind, fast forward and stop the animation at any point in the formation as well as read captions outlining the process. The animation is part of the Earth Exploration Visualization collection. Full description.
Grade level: High (9-12), College (13-14), College (15-16)
Resource type: Visualization - scientific, Ref. material
Subject: Geologic time, Geology, Paleontology
 
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This site provides access to a spectrum of web-based visual resources and supporting material that can be used to teach students about paleoclimate through geologic time. Visualizations include simple animations, GIS-based animated maps and paleogeographic maps, as well as numerous illustrations and photos. Resources can be integrated into lectures, labs, classes, or other activities about paleoclimate ... Full description.
Grade level: High (9-12), College (13-14), College (15-16), Graduate / Professional
Resource type: Imagery - remotely sensed, Map, Photograph, Visualization - scientific, Abstract / Summary, Clearinghouse
Subject: Climatology, Physical geography, Geologic time
 
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This site provides animations, images, interactive maps and videos that can be used to teach about the concept of geologic time. Visual resources cover some specific topics of earth history including plate tectonics, continental drift, relative age dating and paleontology. These resources are appropriate for an introductory level geology course. Full description.
Grade level: High (9-12), College (13-14), College (15-16), Graduate / Professional
Resource type: Illustration - scientific, Map, Video, Clearinghouse
Subject: Geologic time, Paleontology, Structural geology
 
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