This animation provides an interactive ternary diagram that shows soil texture classifications for different silt, sand and clay content levels.

This site features a collection of visual resources that can be used to help illustrate the process of physical weathering. Visualizations demonstrate different styles of mechanical weathering and the resulting impact on the landscape. Resources include animations, interactive graphics and photographs showing the effects of physical weathering. These visualizations are suitable for use in an introductory level geology lecture, lab, or other activity.

This site contains a variety of plate tectonic animations, paleogeographic reconstructions, and paleoclimate animations. Each animation is viewable from the web page, and has accompanying text that explains the events portrayed. Examples include the formation of the ocean basins, the assembly and breakup of Pangaea, and the collision of India and Asia.

This site contains several sets of precipitation data from NASA Goddard Space Flight Center. Data sources include the Tropical Rainfall Measuring Mission, global precipitation data, and hydrology field experiments. Data sets include real time, monthly or daily global precipitation analyses, precipitation patterns in the tropical Pacific, and El Nino precipitation analyses. Data may be viewed in raw format, and as maps or animations. The website also includes special topics such as precipitation anomalies and extreme events.

This site features Flash animations and QuickTime movies that illustrate some of the processes associated with river erosion, transport and deposition. Topics include sediment transport processes, such as saltation, sliding, rolling, suspension, and dissolved load; depositional processes, such as the spatial distribution of gravel, sand and clay as a stream enters a lake; and sediment transfer processes, such as sand bar migration and the concept of a graded stream. The site also features 25 QuickTime movies that show real film footage of a variety of sedimentary structures including ripples, planar beds, debris flows, and turbidity currents. These resources are suitable for use in lectures, labs, or other teaching activities.

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.

This set of lecture notes covers the concept of radiometric dating. Topics covered include half-life, parent, and daughter isotopes, Rb/Sr systems, and Ur/Th/Pb systems. Determination of the age of the earth and meteorites are discussed using the geochron. Other methods of dating (Sm/Nd, K/Ar, and Carbon 14) are discussed briefly. This resource is part of the Teaching Petrology collection. http://serc.carleton.edu/NAGTWorkshops/petrology03/index.html

This online book summarizes the results of a workshop that examined the connection between human health and the natural, built, and social environments. The book makes the assertion that a new vision for environmental health is needed because the current infrastructure for linking environmental health and public health is not working as well as it should. The book is available online for free, may be printed from PDF files, or hard copies may be ordered from the site.

These lecture notes provide several examples of regional metamorphism. The notes introduce Barrovian Facies metamorphism, using the classic example of the Dalradian and Moinian Series of Scotland. A Barrovian series in the southern Appalachians is also discussed. The Buchan facies series is discussed briefly. Two high-pressure facies series are discussed, the Franciscan in the western US and the Sanbagawa in Japan. Index minerals and paired metamorphic belts are also discussed. The lecture notes contain several geologic maps. This resource is part of the Teaching Petrology collection. http://serc.carleton.edu/NAGTWorkshops/petrology03/index.html

This site provides access to a number of visual resources and supporting material about physical processes acting in rivers and floodplains. Visualizations include simple animations, visual output from numerical models, sediment transfer movies, and numerous static illustrations and photos. Resources can be integrated into lectures, labs, classes, or other activities about fluvial processes and landscape evolution over time.

This site provides Flash animations that demonstrate the formation of erosional coastal landforms. Visualizations illustrate the erosional processes responsible for the creation of arches and straightening coastlines. These resources may be integrated into lectures, labs or other activities.

This site provides a diverse group of visualizations depicting sedimentation models. Visualizations range from photos and still image sequences to animations, and represent simple conceptual models, output from computer simulations, and physical experimental models. Visual resources can be integrated into lectures, labs, classes, or other activities about sedimentation and stratigraphy.

This site provides visual resources and supporting material about the study of sequence stratigraphy. Resources accessible from this site include informational text, images, animations and short videos which can be integrated into lectures, labs or other activities.

Students use the Coastal Vulnerability Index (CVI) developed by the USGS to evaluate multiple factors that affect shoreline stability in two sites, Maine and Virginia. Students complete a table with the data they collect and answer several summary questions about that data.

The Society for Chaos Theory in Psychology & Life Sciences is an international forum bringing together researchers, theoreticians, and practitioners interested in applying dynamical systems theory, far-from-equilibrium thermodynamics, self-organization, neural nets, fractals cellular automata, and related forms of chaos, catastrophes, bifurcations, nonlinear dynamics, and complexity theories to psychology and the life sciences. This website includes information that explains the basics of the chaos theory and provided tutorials to help explain this concept. In addition, conference reports, journal articles, and a data library is available for users to obtain more information on the Chaos Theory or the Society that hosts this page. This resource is part of the Biocomplexity collection. http://serc.carleton.edu/biocomplexity/

This site provides a collection of audio, visual, and informational resources about soil erosion. Animations and MPG movies cover topics including the migration of African dust across the Atlantic, bank erosion, rain splash erosion, dune sand saltation, and the physical and cultural effects of erosion in Haiti. The site also features audio and visual files about the Dust Bowl during the 1930's as well as links to galleries of soil erosion images.

This site features Flash animations that illustrate the development of soil horizons and their characteristics. Animations depict the processes of eluviation and illuviation, soil thickness and biomantle development, and a typical progression of soil profile development from bedrock to mature soil. These visual resources may be suitable for integration into lectures, labs and other teaching activities.

This site provides illustrated information about soil orders and their global geographical distributions. Visual resources may be incorporated into lectures, labs, or other activities.

This is a chapter on spectroscopy from The Manual of Remote Sensing, Volume 3, Remote Sensing for the Earth Sciences. Topics in the chapter include an overview of spectroscopy, the reflection and absorption process, causes of absorption, spectra of miscellaneous minerals and materials, the sensitivity of absorption bands to crystal structure and chemistry and the scattering process. The chapter also covers quantitative understanding in terms of radiative transfer theory and spectral libraries. The site features an in-depth look at reflectance spectroscopy, and contains many figures and an extensive reference section.

This 81-slide PowerPoint presentation reviews the phase rule in terms of metamorphic systems, using the brucite-periclase system as an example. Binary and ternary chemographic diagrams are used to explain compatibility in mineral assemblages. The presentation covers ternary diagrams for complicated systems, ACF and AKF diagrams, projections from apical phases, and J.B. Thompson's A(K)FM diagram is used as an alternative tool to apply to pelitic rocks. Lastly, a set of rules is laid out to help choose the appropriate chemographic diagram. This resource is part of the Teaching Petrology collection. http://serc.carleton.edu/NAGTWorkshops/petrology03/index.html