A5011003120- Geology and Paleoclimatology Research
- Paleontology and Stratigraphy of Fossils
- Hydrocarbon exploration and reservoir analysis
- Geological and Geochemical Analysis
- Geochemistry and Elemental Analysis
- Methane Hydrates and Related Phenomena
- Geochemistry and Geologic Mapping
- Groundwater and Isotope Geochemistry
- Metal Extraction and Bioleaching
- Minerals Flotation and Separation Techniques
- Mine drainage and remediation techniques
- Chemical Synthesis and Characterization
- Radioactive element chemistry and processing
- Marine and coastal ecosystems
- Calcium Carbonate Crystallization and Inhibition
- Soil erosion and sediment transport
- Aeolian processes and effects
- Astro and Planetary Science
- Mineral Processing and Grinding
- Karst Systems and Hydrogeology
- Geological and Geophysical Studies Worldwide
- Marine and environmental studies
- Extraction and Separation Processes
- Aquaculture Nutrition and Growth
- Soil and Water Nutrient Dynamics
University of North Carolina at Charlotte
2023-2024
University of Minnesota
2013-2023
Yale University
2018-2023
Wheaton College - Illinois
2022
Planetary Science Institute
2020-2021
Massachusetts Institute of Technology
2020
Monash University
2016-2018
Whitney Museum of American Art
2018
Twin Cities Orthopedics
2013-2015
Felsic volcanism in South China with Cu, Hg, and S released exacerbated environmental changes that drove the end-Permian extinction.
Abstract Phosphorus is an essential element for life, and the phosphorous cycle widely believed to be a key factor limiting extent of Earth's biosphere its impact on remotely detectable features atmospheric chemistry. Continental weathering conventionally considered only source bioavailable phosphorus marine biosphere, with submarine hydrothermal processes acting as sink. Here, we use novel 29 Si tracer technique demonstrate that alteration basalt under anoxic conditions leads significant...
Abstract Circulating fluids within Earth’s mid-ocean ridge system cool and alter the oceanic crust, contribute distinct chemistry to ocean, generate economically geologically important metal-sulfide deposits at seafloor. Yet, we have few constraints on characteristics of these peak subseafloor pressure temperature conditions or how primary variable, seafloor spreading, affects fluids’ delivery metals sulfur seawater. Here, develop a new, robust technique for estimating endowment heat...
Abstract Osmium isotope ratios are a key tool to track changes in global weathering and carbon cycle evolution through time. Long‐term seawater Os records over the Cenozoic have been used argue for from increased uplift, leading long‐term cooling. Sulfide mineral precipitation during hydrothermal circulation traps majority of mantle‐derived within mid‐ocean ridge (MOR) systems. Building evidence that amount sulfide subseafloor MOR systems is related sulfate calcium seawater, we show as...
Multidisciplinary studies at the 9°50’N East Pacific Rise (EPR) hydrothermal field span three decades and encompass two periods of volcanic activity in 1991-1992 2005-2006. Shifts pressure temperature circulation induced by magmatic cycle drive changes composition venting fluids. Previous geothermobarometric model approaches used quartz solubility fluid Cl concentrations to estimate conditions zone where fluids originate [1, 2]. A geothermometer based on dissolved Fe/Mn...