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Density of the Earth - How to Solve It
Len Vacher, Dept of Geology, University of South Florida
This module addresses the real problem of determining the density of the Earth and invites the student to figure out how to solve the problem.

The Floating Lithosphere - Isostasy
Len Vacher, Dept of Geology, University of South Florida
Students are asked to numerically and then analytically determine the relations governing the depth of compensation.

Question of the Day: ANWR Drilling Policy
Question of the Day developed by William Prothero, University of California, Santa Barbara.
Students analyze the interplay between science and politics on the issue of drilling for oil in the Arctic National Wildlife Refuge.

Back-of-the-Envelope Calculations: Percentage of Copper in Ore
Barb Tewksbury, Hamilton College
Question Suppose that you are building a new house. It will take about 90 kg (198 pounds) of copper to do the electrical wiring. In order to get the copper in the first place, someone needs to mine solid rock that ...

Back-of-the-Envelope Calculations: Depth of Buried Metamorphic Rock
Barb Tewksbury, Hamilton College
Question In many high-grade metamorphic belts around the world, rocks were buried 20-30 km beneath the surface during deformation and metamorphism. How deep is that relative to the cruising altitude of a typical ...

Crystallization-Differentiation of the Kilauea Iki Lava Lake
Kent Ratajeski Department of Earth Sciences, Montana State University, Bozeman, MT Published Oct. 26, 2004. Description In this exercise, students use major-element compositions of whole-rocks, volcanic glasses, ...

Crystal Structures as Geobarometers
Kent Ratajeski, kratajeski@montana.edu Department of Earth Sciences, Montana State University, Bozeman, MT Published Jan. 4, 2005 Description This exercise is based on the recent formulation of a geobarometer ...

Order/Disorder Within Crystal Structures as a Function of Temperature
Kent Ratajeski Department of Earth Sciences, Montana State University, Bozeman, MT Published Jan. 25, 2005 Description The olivine unit cell. Crystallographic sites house Si (black), O (red), and the M1 (brown) ...

The Metrical Mastrix in Teaching Mineralogy
G. V. Gibbs
The calculation of the d-spacings, the angles between planes and zones, the bond lengths and angles and other important geometric relationships for a mineral can be a tedious task for the student and the ...

Matlab Module to Delineate Zones of Contribution
Roseanna Neupauer, University of Colorado at Boulder
This module includes two Matlab routines to delineate zones of contribution. Students can vary aquifer parameters and stresses and observe the effects on the zone of contribution.


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