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Geochemistry Activities

Stream sampling in the Animas River
USGS photo

This collection of activities can be used in geochemistry courses. The collection includes lab exercises, classroom activities, problem sets and more. The materials below are sorted by topic, and may be listed under more than one topic. Help us expand the collection by contributing your favorite teaching activity.



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Results 31 - 45 of 143 matches

Rb-Sr isotope in-class exercise part of Cutting Edge: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 ...

Origins of Mafic Enclaves in the Dinkey Creek Pluton, Central Sierra Nevada Batholith, California part of Cutting Edge:Petrology:Teaching Examples
Jade Star Lackey, Pomona College;
In this lab exercise, students use and substantial spreadsheet of major, minor and trace element data compiled from studies of the Dinkey Creek pluton (Sierra Nevada batholith) and its microgranular mafic enclaves. ...

Batch and Rayleigh Decarbonation Modeling of d13C part of Cutting Edge: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 ...

Chemical Differentiation in the Palisades Sill part of Cutting Edge:Petrology:Teaching Examples
Matthew Gorring, Montclair State University
The purpose of this assignment is for students to synthesize field observations, petrography, and whole-rock chemical analyses in order to investigate chemical differentiation processes in a basaltic magma chamber. ...

Homework on Volcanic Rock Chemistry and Binary Phase Diagrams part of Cutting Edge:Petrology:Teaching Examples
Jane Selverstone, University of New Mexico-Main Campus
This homework has 2 main parts: In the first part, students are given bulk compositions for 6 volcanic rocks and asked to classify them, think about their normative compositions, and given likely tectonic settings ...

Major Element Control Presentation part of Cutting Edge:Petrology:Teaching Examples
Kurt Hollocher, Union College (Lincoln, NE)
The presentation is an introduction to the control of magma chemical compositions by the fractionation of crystallizing phases. It is followed by a lab exercise where students interpret volcanic rock petrology and ...

Application of Sr Isotopic Data to Tuolumne Intrusive Series, Sierra Nevada, CA part of Cutting Edge: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 ...

Major Element Fractionation During Differentiation part of Cutting Edge:Petrology:Teaching Examples
Elizabeth King
This problem set introduces some of the more advanced uses of Excel to not only calculate how the chemistry of a magma changes with crystallization but also to see how the liquidus assemblage can drastically change ...

Learning Thermodynamics and Using Spreadsheets part of Cutting Edge:Petrology:Teaching Examples
Sumit Chakraborty and Somnath Dasgupta
These files contain a set of three Excel files to balance mineral reactions, to explore variation of thermodynamic properties as a function of P, T and composition and to explore stability of different mineral ...

Geothermal Gradients part of Cutting Edge:Petrology:Teaching Examples
Cameron Davidson, Carleton College
In this problem set the students use two different equations to calculate a conductive geothermal gradient using a spreadsheet program like Excel. Once they have the geothermal gradient plotted, they are asked to ...

Magma Modification in the central Sierra Nevada Batholith part of Cutting Edge:Petrology:Teaching Examples
Jennifer Wenner, University of Wisconsin-Oshkosh
This exercise is centered around a suite of rocks from the Sierra Nevada batholith. The activities are designed to give petrology students a capstone experience for the igneous portion of the upper-level Petrology ...

Calculating Rb-Sr Isochrons part of Cutting Edge:Petrology:Teaching Examples
Andy Barth, Indiana University-Bloomington
This is a spreadsheet that I use in petrology to walk students through calculating Rb-Sr isochrons and talking about isotope heterogeneity and sampling at various scales. The example exercise is the Tuolumne ...

Volcanoes around the Globe (Beta test copy) part of Cutting Edge:Introductory Courses:Activities
Mark Abolins, Middle Tennessee State University
Undergraduate non-majors use the Arcview geographic information system (GIS) to explore volcanic hazards and the geochemistry of volcanic rocks. Students explore geochemical data from the GEOROC global database and ...

Deciphering complex fluid-mineral interactions in the palm of your hand part of Cutting Edge:Complex Systems:Teaching Activities
Barb Dutrow, Louisiana State University
This exercise uses polished rock slabs containing veins sealed by copper-bearing minerals to understand the feedback effects in complex fluid-rock systems. By determining the minerals and their relative timing, the ...

An In-Class Demonstration and Activity Using the FCAEM Remotely Operable Electron Microprobe part of Activities
Jeff Ryan, University of South Florida
This activity takes advantage of the full remote operation capabilities of the electron microprobe system available through the Florida Center for Analytical Electron Microscopy (FCAEM) at Florida International ...