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Deciphering Regional Geology Using The New Usgs-Ewu Mineral Separation Lab, Zachary Shimp, Katlin Gamache, Travis Morton, Chad Pritchard
Deciphering Regional Geology Using The New Usgs-Ewu Mineral Separation Lab, Zachary Shimp, Katlin Gamache, Travis Morton, Chad Pritchard
2022 Symposium
U/Pb radiometric dating of zircon is one of the most widely used methods to determine the crystallization ages of igneous and metamorphic rocks and the provenance of sedimentary rocks. Eastern Washington University (EWU) has collaborated with the U.S. Geological Survey (USGS) to build a mineral separation lab for isolating zircon (and other) minerals for analysis. This lab was completed in Fall 2022 and is currently being transferred to the new ISC for future use. Graphically illustrated below are the methods used for sampling and pulverizing the rock, as well as grain mount preparation techniques. One of the EWU projects that …