Title

Seasons pass: Geochemical Dynamics in Silver Bow and Blacktail Creeks

Document Type

Lecture

Publication Date

11-14-2018

Abstract

Longitudinal geochemical sampling coupled with in situ incubation experiments in Silver Bow and Blacktail Creeks suggest seasonal water column sulfate reduction and unusual halogen depletion at some sites. More than three years of quarterly sampling indicate on average elevated Zn, F, Br, and Cl - but not Al - in the restored corridor relative to the control on Upper Blacktail Creek. Sequenced microbial DNA concurrently collected and extracted from a full year cycle at each site will be queried for biological contributions to elemental cycling.

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Comments

Dr. Alysia Cox is an Assistant Professor of Environmental Chemistry. She grew up in Michigan and moved to Arizona State University (ASU) on a National Merit Scholarship where she received her B.S. summa cum laude in the Geological Sciences with minors in Biology and German from the Barrett Honors College. She earned her PhD in Chemical Oceanography at the Massachusetts Institute of Technology and the Woods Hole Oceanographic Institution. After postdoctoral work at ASU and the Swiss Federal Institute of Technology (ETH Zurich), Dr. Cox started the Laboratory Exploring Geobiochemical Engineering and Natural Dynamics (LEGEND) at Tech. Her research combines geochemistry with biochemistry to determine active mechanisms of chemical reactions with wide application to the environment.

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