Overview: The Environmental Geochemistry Lab @ UMass Amherst seeks a postdoctoral researcher specializing in chemical weathering processes and geochemical modeling. Specifically, this postdoctoral project will work to characterize the control of reactive gases (CO2, O2) in upland soil environments on chemical weathering fluxes and stream geochemistry. This research is part of an ongoing project to quantify the thermodynamic controls on modern chemical weathering fluxes and how these controls influence terrestrial carbon cycling and act as global negative feedback on climate, stabilizing atmospheric pCO2 over geologic timescales.
Depending on the applicant’s strengths and interests, duties will involve (1) geochemical reactive transport modeling of soil weathering processes using established software (CrunchFlow, PHREEQC, TOUGHREACT) and/or user-generated models; (2) quantitative analysis of large stream geochemistry concentration-discharge datasets and comparison to geochemical speciation models; (3) and field sampling and monitoring/measuring of soil-, ground-, and stream-water geochemistry and soil gas environments at established field sites in the Colorado Rocky Mountains and western Massachusetts. Duties also include publishing in peer-reviewed journals, presenting results at international conferences, and developing and assisting with project proposals for external funding.
Required Skills: Completed PhD in geochemistry, hydrology, environmental engineering, soil science, or related fields; experience with stable isotope and/or geochemical characterization of natural waters and sediments; expertise in shell scripting used to analyze and interpret large datasets (e.g., R, Python, Matlab); strong record of peer-review publications and conference presentations.
Preferred Skills: Experience developing and applying geochemical reactive transport models; experience installing and maintaining field geochemical monitoring equipment.
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