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Results 41 - 50 of 455 matches
Flood Frequency and Risk Assessment
Carol Ormand, Carleton College
Students calculate recurrence intervals for various degrees of flooding based on historical data. Students then do a risk assessment for the surrounding community.
Back-of-the-Envelope Calculations: Rate of Lava Flow
Barb Tewksbury, Hamilton College
Question In 1983, an eruption began at Kilauea Volcano in Hawaii that has proved to be the largest and longest-lived eruption since records began in 1823. Lava has poured out of the volcano at an average rate of ...
Understanding Radioactivity in Geology: The Basics of Decay
Christina StringerâUniversity of South Florida, Tampa FL 33620 This activity was developed for Spreadsheets Across the Curriculum . National Science Foundation, DUE 0442629.
PowerPoint module leading students through creation and manipulation of spreadsheet to forward model an example of exponential decayâthe number of remaining unpopped kernels of popcorn in a bag of popping popcorn.
Kent Ratajeski Department of Earth Sciences, Montana State University, Bozeman, MT Published Oct. 26, 2004. Description In this exercise, students use whole-rock major- and trace-element compositions of volcanic ...
What is the Relationship between Lava Flow Length and Effusion Rate at Mt Etna?
SSAC Physical Volcanology module. Students use Excel to determine a log-log relationship for flow length vs effusion rate and compare it with a theoretical expression for the maximum flow length.
What is the Volume of a Debris Flow?
SSAC Physical Volcanology module. Students build a spreadsheet to estimate the volume of volcanic deposits using map, thickness and high-water mark data from the 2005 Panabaj debris flow (Guatemala).
Porosity and Permeability of Magmas
SSAC Physical Volcanology module. Students build a spreadsheet for an iterative calculation to find volume of bubbles and hence porosity, permeability and gas escape as a function of depth.
What is the Volume of the 1992 Eruption of Cerro Negro Volcano, Nicaragua?
SSAC Physical Volcanology module. Students build a spreadsheet to calculate the volume a tephra deposit using an exponential-thinning model.
How Does Surface Deformation at an Active Volcano Relate to Pressure and Volume Change in the Magma Chamber?
Module by Peter LaFemina, Penn State, State College, PA. This cover page by Ali Furmall, University of South Florida, now at University of Oregon.
SSAC Physical Volcanology module. Students build a spreadsheet to examine and apply the Mogi model for horizontal and vertical surface displacement vs. depth and pressure conditions in the magma chamber.
How Do We Estimate Magma Viscosity?
SSAC Physical Volcanology module. Students build a spreadsheet to examine how magma viscosity varies with temperature, fraction of crystals, and water content using the non-Arrhenian VFT model.