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The 2017 Seventeenth Annual UMM Undergraduate Research Symposium (URS) celebrates student scholarly achievement and creative activities. Students from all disciplines participate in the URS. Types of presentations include posters, oral presentations, and short or abbreviated theatrical, dance, or musical performances. 

Presentations are accompanied by discussions and multimedia.

 


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Saturday, April 22 • 10:00am - 12:00pm
Petrology and Geochemistry of the Taupo Volcanic Zone

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New Zealand is a relatively young, geologically active area of the world. Volcanic activity is particularly focused on the North Island within an area called the Taupo Volcanic Zone. This zone is comprised of several active volcanoes with a variety of compositions from rhyolitic to andesitic. This study is focused around Mt. Ruapehu, an active volcano marking the southern terminus of the Taupo Volcanic Zone. A new vent was discovered in 2016 in the ring plain zone on the eastern side of Mt. Ruapehu. The vent is composed of two types of volcanic material: lithics and spatter. The study has two primary goals: 1) to demonstrate the vent is in-situ and not material eroded from the Ruapehu cone, and 2) to attempt to better-understand the vent, its origins, and the potential to place it within the context of the regional volcanic activity. In an addition to field observations, multiple laboratory-based methods were employed towards these goals, including petrographic, geochemical, geomorphological, and hand sample and mineral analyses. The geochemistry of the lithic sample plots within published data from Mt. Ruapehu, while the geochemistry of the spatter forms a cluster consistent with published compositional data from the western margin. Lithic and spatter compositions indicate that the two types of vent outcrop samples came from separate magma sources. Further work on the eastern side of Ruapehu is required to better understand the vent’s origins.

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Saturday April 22, 2017 10:00am - 12:00pm
Student Center, Oyate Hall 600 E 4th St., Morris MN 56267