This USGS report presents an overview of the interactions between ground water and surface water in a variety of terrains. It serves as a general educational document with the intention of helping agencies understand the basic science involved in the management and protection of aquifers and watersheds. The report describes the natural processes of ground water and surface water interactions and the ... Full description.

This is an advanced isotope geochemistry class page from Cornell, with five problem sets and corresponding solutions. The problem sets include exercises in graphing, dating, growth rates, nuclide identification, binding strengths, equilibration, and much more. This resource is part of the Teaching Quantitative Skills in the Geosciences collection. http://serc.carleton.edu/quantskills/ Full description.

This site features a lecture about isotope fractionation from a geochemistry course offered by Dr. Scott Wood at the University of Idaho. Topics include isotopic fractionation and the fundamental reasons for its occurrence, the notation used in measuring and reporting stable isotope fractionation, isotopic variations of meteoric waters with respect to latitude and altitude, the use of oxygen and hydrogen ... Full description.

This website from the "On the Cutting Edge" workshop series is designed for faculty who teach undergraduate geochemistry and for geochemistry students. Here you will find a growing collection of materials for teaching geochemistry, such as classroom activities and a collection of internet resources. A database of geochemical analytical equipment provides information about instruments across the country ... Full description.

This site from the "On the Cutting Edge" workshop series contains a collection of activities that can be used in undergraduate geochemistry courses. The collection includes lab exercises, classroom activities, problem sets and more. Full description.

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.

This clearinghouse consists of crystallography links with an emphasis on education and tutorials. There is also a search feature, which allows the user to explore a large crystallographic database. Additionally, the site is available in French. Full description.

This site provides a detailed look at the crystal structure and compositional variations of amphiboles. Also discussed are ways to assess the quality of analyses from looking at the stoichiometry of mineral formulas, how to estimate ferric iron, and special considerations affecting formula recalculation. A 3-D model of the mineral's structure is also included. Full description.

This searchable database, maintained by the Russian Foundation of Basic Research, includes 4785 entries (2365 unique mineral names). Each mineral can be searched by name, specification, crystal chemical formula, or crystal structure characteristics. The crystal structure information includes mineral name, specification, crystal chemical formula, space group, unit cell parameters, coordinates, thermal ... Full description.

This site hosts a computer application for thermobarometry. The program calculates pressures and temperatures for garnet, cordierite, spinel, sillimanite/kyanite, quartz anhydrous or hydrous pelitic assemblages. The user enters cation values for each mineral, and the model generates pressure vs. temperature graphs or data tables of the calculated isopleths. The program is derived from the shareware ... Full description.