Angle of Repose part of Quantitative Skills:Activity Collection
Eric Baer, Highline Community College
A student activity to determine the angle of repose and what factors determine the angle of repose.

Mid-level spreadsheeting and complex modeling of real-world scarp evolution part of Quantitative Skills:Activity Collection
William Locke, Montana State University-Bozeman
This exercise is a second or familiarization exercise in spreadsheeting, but is also a mathematical model for slope evolution. It uses the concept of "erosivity" (generally, the relative ratio of driving and resisting forces) and slope angle to reshape an initial topography. Finally, it asks the students themselves to come up with a real-world situation worth modeling.

Exploring Radiometric Dating with Dice part of Quantitative Skills:Activity Collection
Carla Whittington derived from Baer (1999) Related Links Radioactive Decay ProbabilityExponential Growth and Decay
An activity in which students use dice to explore radioactive decay and dating and make simple calculations.

Application of Sr Isotopic Data to Tuolumne Intrusive Series, Sierra Nevada, CA part of Petrology:Teaching Examples
Jeff Tepper, University of Puget Sound
In this problem set students are given Rb/Sr and 87Sr/86Sr data for whole rock and mineral samples from three granitic intrusions in the Sierra Nevada. They use these data (in EXCEL) to calculate isochron ages and ...

Variation Diagrams and the Evolution of Thingmuli Lavas, Iceland part of Petrology:Teaching Examples
Jeff Tepper, University of Puget Sound
In this problem set students are provided with an EXCEL spreadsheet containing major element analyses of lavas frm Thingmuli Volcano in Iceland. They are asked to construct variation diagrams (Harker plots) and ...

Batch and Rayleigh Decarbonation Modeling of d13C part of Petrology:Teaching Examples
Jade Star Lackey, Pomona College
This is an Excel spreadsheet and graph that illustrates standard "batch" and Rayleigh decarbonation models and how they can be used to detect fluid infiltration during metamorphism of carbonates. It makes ...

Properties of Rhyolite Magma part of Petrology:Teaching Examples
Barbara Nash, University of Utah
The purpose of the exercise is to acquaint igneous petrology students with properties of silicic magmas, and to emphasize the effect of water content on viscosity of silicic magmas. Students have to determine the ...

Rb-Sr isotope in-class exercise part of Petrology:Teaching Examples
Allen Glazner
This set of problems involves calculations of changes in radiogenic isotope ratios. It requires students to understand the concept of an isochron and how isotope ratios change (or do not change) during magma mixing ...

Bubbles in Magmas part of Pedagogy in Action:Partners:Spreadsheets Across the Curriculum:Physical Volcanology:Examples
Module by Chuck Connor, University of South Florida, Tampa. This cover page by Ali Furmall, USF, now at U. Oregon.
SSAC Physical Volcanology module. Students build a spreadsheet and apply the ideal gas law to model the velocity of a bubble rising in a viscous magma.

Earthquake Magnitude: How Can We Compare the Sizes of Earthquakes? part of Spreadsheets Across the Curriculum:General Collection:Examples
Laura Wetzel, Eckerd College
Spreadsheets Across the Curriculum module. Students build spreadsheets to tabulate and graph seismic wave amplitude and energy release to explore the logarithmic scale of earthquake magnitude.