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1. THE EFFECT OF DISSIMILATORY IRON REDUCTION, NITRATE REDUCTION AND MICROBIAL GROWTH ON ELECTRICAL CONDUCTIVITY

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2. ABIOTIC CONTROLS ON COPPER ISOTOPE FRACTIONATION DURING THE DISSOLUTION OF COPPER SULFIDE MINERALS

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3. Weathering Advance Rates in Basalt: Prediction and Comparison Across Scales

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4. Microbial Trace Metal Requirements: Limiting Nutrients and Potential Biosignatures

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5. Biogeochemical Cycling of Copper in Acid Mine Drainage

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6. CONTROLS ON GROUNDWATER CHEMISTRY IN THE CAPE COD AQUIFER, MASSACHUSETTS: THE IMPACT OF ACCESSORY MINERAL PHASES ON SOLUTE CONCENTRATIONS, 87Sr/86Sr, AND RARE EARTH ELEMENT DISTRIBUTIONS

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7. CO2 Emissions in Yellowstone, USA, and Solfatara Volcano, Italy: Use of Eddy Covariance and Mass Flux Modeling

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8. Time-Resolved Structural Analyses of Cation Exchange Reactions in Synthetic Birnessite

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11. Soil Carbon Dioxide Flow Associated With The San Andreas And Calaveras Faults, California

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13. The Effect of Temperature and Precipitation on Sodium Depletion Fronts in Soils Developed on Peoria Loess

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14. Quantifying Subsurface Nitrate Transport and Remediation Using Gene Expression and Finite Element Models

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15. Understanding Redox Processes in Surface Environments from Iron Oxide Transformations and Multiple Sulfur Isotope Fractionations

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17. Biogeochemistry of manganese contamination in a temperate forested watershed

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18. Exploring a 60-year record of manganese deposition in Marietta Ohio using soil chemistry and atmospheric dispersion modeling

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19. The role of water in the development of surface roughness and mineralogical variability on playa surface sediments: implications for aeolian erodibility and dust emission

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20. Chemical and Physical Weathering in Regolith: An Investigation of Three Different Fe-rich Sites of Varying Climate and Lithology

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21. Topographic fingerprints of hillslope erosion in the central Appalachians as revealed by meteoric 10be: Toward understanding the evolution of critical zone architecture

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23. Measuring concentrations of natural gas in three streams in Pennsylvania to estimate methane fluxes from the subsurface

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24. The anatomy of weathering profiles on different lithologies in the tropical forest of northeastern Puerto Rico: from bedrock to clouds

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25. Geochemistry of the Union Springs Member, Marcellus Formation in Central Pennsylvania and Environmental Implications of hydraulic fracturing

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27. CO2 Hydration and Hydroxylation: The Origin of Carbonate Kinetic Isotope Effects

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28. Surface water-sediment interactions: Examples from pristine and contaminated catchments

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29. UNDERSTANDING THE EFFECTS OF HYDROLOGIC CONNECTIVITY, LAND USE, AND LITHOLOGY ON WATER QUALITY ACROSS SCALES: FROM A ZEROTH ORDER CATCHMENT TO A HUC 10 WATERSHED IN THE SUSQUEHANNA RIVER BASIN

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30. WORKING WITH CITIZEN SCIENTISTS AND HOMEOWNERS IN PENNSYLVANIA TO UNDERSTAND HYDROCARBON-RELATED CONTAMINATION OF WATER RESOURCES

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31. Land use versus climate controls on hillslope erosion at a farmed headwater catchment in central Pennsylvania

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32. THE EFFECT OF LITHOLOGY ON (BIO)GEOCHEMICAL WEATHERING: SANDSTONE TO SERPENTINITE

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33. P-wave Velocity Structure of the Shale Hills Watershed, Pennsylvania

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34. Investigating nitrate transport and denitrification in hilly terrain from the scale of a single farm field to a HUC-10 watershed

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35. Utilizing 234U/238U and 87Sr/86Sr to understand the provenance and fate of uranium in Shaver’s Creek, Pennsylvania

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Open Access