Results 76 - 90 of 144 matches
Analysis of Hydrochemical Data part of Cutting Edge:Hydrogeology:Hydrogeology, Soils, Geochemistry 2013:Activities
Joseph Asante, Oberlin College
In this activity students examine groundwater flow path based on hydraulic head data/ potentiometric surface and spatial variation of groundwater chemistry. Students analyze the data using AquaChem and Phreeqc ...
Resistivity Profile in an Urban Setting part of Cutting Edge:Geophysics:Workshop 07:Geophysics Activities
William Montgomery, New Jersey City University
Activity in an urban setting that includes an electrical resistivity line and hydrogeological information from nearby monitoring wells that enables students to create a meaningful interpretation of subsurface ...
Research Paper part of Cutting Edge:Early Career:Previous Workshops:Workshop 2010:Teaching Activities
Alan Wanamaker, Iowa State University
This writing assignment was a major part of a class entitled "Stable Isotopes in the Environment" at Iowa State University. The main goals of the assignment were to foster effective scientific writing and ...
Modeling Exsolution (and Perthite Formation) as an Example of Complex-System Behavior part of Cutting Edge:Complex Systems:Teaching Activities
Dave Mogk, Montana State University-Bozeman; Barb Dutrow, Louisiana State University
Students use a physical model, computer simulation, examples from the natural world, visualizations, and overarching thought experiments to explore this phenomenon. Exsolution embodies attributes of a complex ...
Modeling U-Series Concordia/Discordia Using STELLA part of Rates and Time:GSA Activity Posters
Kirsten Menking, Vassar College
U-Series dating techniques are widely used to determine the absolute ages of some of Earth's oldest rocks, but the concordia/discordia diagram can be quite difficult for students to grasp. I have produced a STELLA-based lab exercise to develop students' understanding of this important chronologic technique. Students create models of the two isotopic decay systems and run these models to create the concordia diagram. They then carry out experiments in which they "add" or "remove" varying amounts of lead or uranium in simulation of metamorphism. In the course of the lab, students are introduced to the concepts of exponential decay and secular equilibrium as well as modeling concepts such as the creation of if-then statements.
Introduction to Equilibrium Thermodynamics: Salt Dissolution part of Cutting Edge:Geochemistry:Activities
Andrew Knudsen, Lawrence University;
Students dissolve simple salts, halite and sylvite, in water at different temperatures and explore the thermodynamics of this simple system to build a foundation for further studies.
Variation Diagrams and the Evolution of Thingmuli Lavas, Iceland part of Cutting Edge: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 ...
Zoned Plagioclase Exercise part of Cutting Edge:Petrology:Teaching Examples
R. K. Smith
The purpose of this exercise is to: become familiar with the various types of zoning found to occur in plagioclase feldspars, be able to recognize and identify the various zoning types, and be able to interpret the ...
Graphing Chemical Data to Identify Fractional Crystallization part of Cutting Edge:Petrology:Teaching Examples
John Brady, Smith College
Students are given major-element, whole-rock chemical analyses from ten samples of lava from the 1868 eruption of Mauna Loa. They do not know sequence of eruption, only that the lavas came from the same volcano. ...
Differentiation and Discrimination of Big Bend Ranch State Park Igneous Rocks part of Cutting Edge:Petrology:Teaching Examples
Linda Davis, Austin Community College
I give the students analyses from work that I did with Chris Henry on the Bofecillos Mountains and the Solitario. (Tertiary Volcanism of the Bofecillos Mountains and Big Bend Ranch State Park, Texas: Revised ...
Stable Isotopes and M&Ms part of Cutting Edge:Oceanography:Activities
Roman de Jesus, SUNY at Stony Brook
Students are often confused by the concepts of stable isotope signatures and conventional notation. This activity is designed to introduce students to the del notation (isotopic signature), fractionation, and end ...
Geochemistry all around us part of Cutting Edge:Geochemistry:Activities
Andrew Knudsen, Lawrence University
We look at a variety of natural waters in and around Appleton over the course of the term. The goal is for students to recognize differences and how those play into the topics we have covered in the course.
Rock Samples and Geochemistry Analyses part of Cutting Edge:Geochemistry:Activities
Maria Rosa Lourdes, Bahia Federal University
We will emphasize the importance of rock sampling and preparation for geochemistry analyses.
Integrating research methods into geochemistry using local resources part of Cutting Edge:Geochemistry:Activities
Jeanette Jerz, DePauw University
This is a semester-long project that introduces students to research methods and practices. Students learn both field and lab techniques and how to develop testable hypotheses. Using local resources is an easy way ...
Nitrous Oxide Transport and Transformation part of Cutting Edge:Geochemistry:Activities
Pierre-Andre Jacinthe, Indiana University-Purdue University-Indianapolis
In this laboratory exercise, students gain experience manipulating gas concentration data, determining soil properties related to transport of gases through porous medium like soils. This exercise is appropriate ...