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Updated: Aug 13, 2026

Measuring Carbon-based Contaminant Mineralization Using Combined CO2 Flux and Radiocarbon Analyses
Published on: October 21, 2016
The AEM and regional carbonate aquifer modeling
1Mifflin & Associates Inc, Las Vegas, NV 89124, USA. ircady@yahoo.com
The analytic element method (AEM) improved understanding of groundwater flow in Nevada's Paleozoic terrain. A later model, incorporating new data, successfully simulated a barrier, refining conceptual models of the Muddy River springs area.
Area of Science:
- Hydrogeology
- Geological modeling
Background:
- Paleozoic carbonate rock terrain in Nevada.
- Muddy River springs area, a critical groundwater source.
Purpose of the Study:
- Understand regional groundwater fluxes and boundary conditions.
- Provide a framework for local transient flow analysis using MODFLOW.
- Support cooling water supply development for a gas-fired generation facility.
Main Methods:
- Application of the analytic element method (AEM) to a 15,000-km2 area.
- Development of initial AEM model maintaining hydraulic continuity.
- Calibration of a later AEM model with a barrier using new monitoring well data.
Main Results:
- Initial model maintained hydraulic continuity between north and south flow fields.
- Later model successfully incorporated a barrier, reflecting updated data.
- AEM proved effective for large-area simulation and stepwise model development.
Conclusions:
- AEM is well-suited for large-scale hydrogeological studies.
- Model adaptability facilitated incorporating new data and refining conceptualization.
- The study enhanced understanding of groundwater dynamics near the Muddy River springs.
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