# positions[].organizations[].parent[].label
Texas A&M Engineering Experiment Station (TEES)

# overview
My research focuses on global change and paleoclimates, stable isotope geochemistry, coastal environments past and present, hypoxia, isotope hydrology, past and present, biogeochemistry and geomicrobiology of aquifer systems.

# keywords[]
3709 Physical Geography And Environmental Geoscience

# keywords[]
3709 Physical Geography And Environmental Geoscience

# keywords[]
3709 Physical Geography And Environmental Geoscience

# keywords[]
3709 Physical Geography And Environmental Geoscience

# keywords[]
3709 Physical Geography And Environmental Geoscience

# keywords[]
3709 Physical Geography And Environmental Geoscience

# keywords[]
3709 Physical Geography And Environmental Geoscience

# keywords[]
3709 Physical Geography And Environmental Geoscience

# keywords[]
Latest Devonian To Earliest Carboniferous

# keywords[]
Oceanography : Biological And Chemical : Geochemistry

# keywords[]
Oceanography : General : Diurnal, Seasonal, And Annual Cycles

# keywords[]
3709 Physical Geography And Environmental Geoscience

# keywords[]
3709 Physical Geography And Environmental Geoscience

# keywords[]
3407 Theoretical And Computational Chemistry

# keywords[]
3709 Physical Geography And Environmental Geoscience

# keywords[]
3709 Physical Geography And Environmental Geoscience

# keywords[]
3709 Physical Geography And Environmental Geoscience

# keywords[]
3709 Physical Geography And Environmental Geoscience

# keywords[]
3709 Physical Geography And Environmental Geoscience

# keywords[]
3709 Physical Geography And Environmental Geoscience

# keywords[]
3709 Physical Geography And Environmental Geoscience

# keywords[]
3709 Physical Geography And Environmental Geoscience

# educationAndTraining[].organization.label
University of Southern California - (Los Angeles, California, United States)

# educationAndTraining[].organization.label
University at Albany, State University of New York - (Albany, New York, United States)

# publications[].label
Sedimentary organic matter sources and depositional environment in the Yegua formation (Brazos County, Texas)

# publications[].label
STABLE-ISOTOPE STRATIGRAPHY OF BRACHIOPODS FROM PENNSYLVANIAN SHALES IN TEXAS

# publications[].label
STABLE ISOTOPE FRACTIONATION IN LIVE BENTHIC FORAMINIFERA FROM THE SOUTHERN-CALIFORNIA BORDERLAND

# publications[].label
THE CARBON AND OXYGEN ISOTOPE RECORD DURING THE EVOLUTION OF PANGEA - CARBONIFEROUS TO TRIASSIC

# publications[].id
 Testing a multiproxy approach for inferring paleotemperature and paleosalinity

# publications[].label
Stable isotope and Sr/Ca profiles from the marine gastropod Conus ermineus

# publications[].label
Late Pennsylvanian seasonality reflected in the 18 O and elemental composition of a brachiopod shell

# publications[].label
Millennial-scale change on a Caribbean reef system that experiences hypoxia

# publications[].label
STABLE ISOTOPIC VARIATION IN PTEROPODS AND ATLANTIDS FROM NORTH PACIFIC SEDIMENT TRAPS

# publications[].label
The oxygen isotopic record of seasonality in Conus shells and its application to understanding late middle Eocene (38 Ma) climate

# publications[].label
OXYGEN ISOTOPES IN METEORIC CALCITE CEMENTS AS INDICATORS OF CONTINENTAL PALEOCLIMATE

# publications[].label
Reassessment of ocean paleotemperatures during the Late Ordovician

# publications[].label
STABLE ISOTOPES IN MOLLUSK SHELLS AS INDICATORS OF BENTHIC RESPIRATION AND FRESHWATER PENETRATION ON THE TEXAS-LOUISIANA SHELF

# publications[].label
Oxygen-carbon isotope stratigraphy of upper Carboniferous to lower Permian marine deposits in midcontinent USA (Kansas and NE Oklahoma): Implications for sea water chemistry and depositional cyclicity

# publications[].label
Radiogenic isotope composition of Carboniferous seawater from North American epicontinental seas

# publications[].label
CARBON ISOTOPIC FRACTIONATION IN SYNTHETIC ARAGONITE AND CALCITE - EFFECTS OF TEMPERATURE AND PRECIPITATION RATE

# publications[].label
Citation for the 2022 FW Clarke Award to Yige Zhang

# publications[].label
Temperature evolution and the oxygen isotope composition of Phanerozoic oceans from carbonate clumped isotope thermometry

# publications[].label
Nd isotopes as indicator of glacio-eustasy, mid-Carboniferous boundary Arrow Canyon, NV

# publications[].label
Stable Isotope Profiles of Tridacna maxima as Environmental Indicators

# publications[].label
OXYGEN AND CARBON ISOTOPE FRACTIONATION IN BIOGENIC ARAGONITE - TEMPERATURE EFFECTS

# publications[].label
STABLE ISOTOPES IN MODERN BENTHIC FORAMINIFERA - A STUDY OF VITAL EFFECT

# publications[].publisher
Cushman Foundation for Foraminiferal Research

# publications[].label
Conus Shell 13C values as proxies for 13CDIC in tropical waters

# publications[].label
Characterization and origin of dissolved organic carbon in Yegua ground water in Brazos County, Texas.

# publications[].label
Latest Devonian to earliest Carboniferous conodont and carbon isotope stratigraphy of a shallow-water sequence in South Chinad

# publications[].label
Stable carbon isotopes as indicators of microbial activity in aquifers

# publications[].label
Texas Coastal Hypoxia Linked to Brazos River Discharge as Revealed by Oxygen Isotopes

# publications[].label
Mass balance of generation, retention, and production for the Wolfcamp- sourced hydrocarbon in the Permian Delaware Basin: Insight on remaining recoverable resource and expulsion efficiency

# publications[].label
Enhanced transfer of terrestrially derived carbon to the atmosphere in a flooding event

# publications[].label
Sulfur Cycling in the Terrestrial Subsurface: Commensal Interactions, Spatial Scales, and Microbial Heterogeneity.

# publications[].label
Carboniferous isotope stratigraphies of North America: Implications for Carboniferous paleoceanography and Mississippian glaciation

# publications[].label
Isotope Studies of Paleozoic Paleoceanography: Opportunities and Pitfalls

# publications[].label
CHEMICAL AND ISOTOPIC TRACER EVALUATION OF WATER MIXING AND EVAPORATION IN A DAMMED TEXAS RIVER DURING DROUGHT

# publications[].label
Variability of foraminiferal stable isotope ratios in Caribbean shallow waters of Panama: A modern framework for Neogene studies

# publications[].label
Microbial Abundance and Activity in a Low-Conductivity Aquifer System in East-Central Texas.

# publications[].label
Low seasonality in central equatorial Pangea during a late Carboniferous highstand based on high-resolution isotopic records of brachiopod shells

# publications[].label
Stable carbon isotopes as indicators of microbial activity in aquifers

# publications[].label
Formation of barrel concretions around methane seepage pathways in Upper Middle Eocene shelf sediments, Stone City Bluff, Texas

# publications[].label
Clumped isotopes reveal relationship between mussel growth and river discharge.

# publications[].label
ORIGIN OF GASEOUS HYDROCARBONS IN SPARTA AQUIFER IN BRAZOS-COUNTY AND BURLESON-COUNTY, TEXAS

# publications[].label
LATE QUATERNARY CHRONOLOGY OF TUFA DEPOSITS, WALKER LAKE, NEVADA

# publications[].label
Anaerobic methane oxidation in a landfill-leachate plume.

# publications[].label
Freshwater input, upwelling, and the evolution of Caribbean coastal ecosystems during formation of the Isthmus of Panama

# publications[].label
The Brachiopod 11B Record Across the Carboniferous-Permian Climate Transition

# publications[].label
Joint discussion of sedimentary geochemistry data management systems that cross the waterline

# publications[].label
Scientists' Perspective on Introducing Authentic Inquiry to High School Teachers During an Intensive Three-Week Summer Professional Development Experience

# publications[].label
Millennial-scale change on a Caribbean reef system that experiences hypoxia

# publications[].label
Temperature limits for preservation of primary calcite clumped isotope paleotemperatures

# publications[].label
Volatile organic acids and microbial processes in the Yegua formation, east-central Texas

# publications[].label
Stable isotopes in bivalves as indicators of nutrient source in coastal waters in the Bocas del Toro Archipelago, Panama.

# publications[].label
Ocean temperatures through the Phanerozoic reassessed.

# publications[].label
BACTERIAL PRODUCTION OF METHANE AND ITS INFLUENCE ON GROUNDWATER CHEMISTRY IN EAST-CENTRAL TEXAS AQUIFERS

# publications[].publisher
American Association for the Advancement of Science (AAAS)

# publications[].label
STABLE ISOTOPES IN LATE PENNSYLVANIAN BRACHIOPODS FROM THE UNITED-STATES - IMPLICATIONS FOR CARBONIFEROUS PALEOCEANOGRAPHY

# publications[].label
CARBON ISOTOPIC FRACTIONATION IN LIVE BENTHIC FORAMINIFERA - COMPARISON WITH INORGANIC PRECIPITATE STUDIES

# publications[].label
The PhanSST global database of Phanerozoic sea surface temperature proxy data.

# publications[].label
Freshwater input, upwelling, and the evolution of Caribbean coastal ecosystems during formation of the Isthmus of Panama (vol 47, pg 857, 2019)

# publications[].label
Sequential vein growth with fault displacement: An example from the Austin Chalk Formation, Texas

# publications[].label
ORIGIN OF HIGH PRODUCTIVITY IN THE PLIOCENE OF THE FLORIDA PLATFORM EVIDENCE FROM STABLE ISOTOPES AND TRACE ELEMENTS

# publications[].label
Investigation of the thermal history of the Delaware Basin (West Texas, USA) using carbonate clumped isotope thermometry

# publications[].label
Dating calcic soils under marginal climatic or lithologic conditions using a soil developmental index: An example from the Stockton Plateau, Terrell County, Texas

# publications[].publisher
Association of Environmental and Engineering Geologists

# publications[].label
Chemical variation in Pennsylvanian brachiopod shells - Diagenetic, taxonomic, microstructural, and seasonal effects

# publications[].label
Microbial Sulfur Cycling in Terrestrial Subsurface

# publications[].label
Siberian glaciation as a constraint on Permian-Carboniferous CO2 levels

# publications[].label
QUANTIFYING UP WELLING AND FRESHENING IN NEARSHORE TROPICAL AMERICAN ENVIRONMENTS USING STABLE ISOTOPES IN MODERN GASTROPODS

# publications[].label
PROGRESS AND PROBLEMS IN SHAFT SINKING AT TRACT C-A

# publications[].label
LATE PENNSYLVANIAN SEASONALITY REFLECTED IN THE O-18 AND ELEMENTAL COMPOSITION OF A BRACHIOPOD SHELL

# publications[].label
Carbon and oxygen isotope variations of the Middle-Late Triassic Al Aziziyah Formation, northwest Libya

# publications[].label
100 Years of benthic foraminiferal history on the inner Texas shelf inferred from fauna and stable isotopes: Preliminary results from two cores

# publications[].label
Water mass stability reconstructions from greenhouse (Eocene) to icehouse (Oligocene) for the northern Gulf Coast continental shelf (USA)

# publications[].label
Oxygen isotopes in meteoric calcite cements as indicators of continental paleoclimate

# publications[].label
EVIDENCE THAT INOCERAMID BIVALVES WERE BENTHIC AND HARBORED CHEMOSYNTHETIC SYMBIONTS - COMMENT

# publications[].id
 Growth rate effects and temperature calibration

# publications[].label
Strontium to calcium ratios in the marine gastropod Conus ermineus

# publications[].label
Glaciation, aridification, and carbon sequestration in the Permo-Carboniferous: The isotopic record from low latitudes

# publications[].label
Isotopic records of brachiopod shells from the Russian Platform - evidence for the onset of mid-Carboniferous glaciation

# publications[].label
The oxygen isotope record for the Phanerozoic

# publications[].label
Oxygen and carbon isotope trends in a Late Glacial-Holocene pollen site in Wyoming, USA

# publications[].label
Clumped isotope thermometry in deeply buried sedimentary carbonates: The effects of bond reordering and recrystallization

# publications[].label
Experimental studies of oxygen isotope fractionation in the carbonic acid system at 15, 25, and 40C

# publications[].label
Factors influencing methane distribution in Texas ground water

# publications[].label
Stable and clumped isotope sclerochronologies of mussels from the Brazos River, Texas (USA): Environmental and ecologic proxy

# publications[].label
Density functional theory and ab initio molecular dynamics reveal atomistic mechanisms for carbonate clumped isotope reordering.

# publications[].publisher
American Association for the Advancement of Science (AAAS)

# publications[].label
Brachiopod geochemical records from across the Carboniferous seas of North America: Evidence for salinity gradients, stratification, and circulation patterns

# publications[].label
Ground-water microbiology and geochemistry by F. H. Chapelle. John Wiley & Sons, Inc., 1993, 424p., US $69.95 (ISBN 0-471-52951-6)

# publications[].label
Bacterial production of methane and its influence on ground-water chemistry in east-central Texas aquifers

# publications[].label
Brachiopod 34SCAS microanalyses indicate a dynamic, climate-influenced Permo-Carboniferous sulfur cycle

# publications[].label
Stable isotope characterization of hypoxia-susceptible waters on the Louisiana shelf: Tracing freshwater discharge and benthic respiration

# publications[].label
NANNOFOSSIL DIVERSITY AND EQUITABILITY AND FINE-FRACTION DELTA C-13 ACROSS THE CRETACEOUS TERTIARY BOUNDARY AT WALVIS RIDGE LEG-74, SOUTH-ATLANTIC

# publications[].label
Stable carbon and oxygen isotope shifts in Permian seas of West Spitsbergen - Global change or diagenetic artifact?

# publications[].label
Restoring source rock initial quality and quantity with kinetic-based inversion- Applied to the Wolfcamp play in the Permian Delaware Basin

# publications[].label
Cenozoic Seawater Sr/Ca Evolution (vol 14, pg 263, 2013)

# publications[].label
Regional comparisons of watershed determinants of dissolved organic carbon in temperate lakes from the Upper Great Lakes region and selected regions globally

# publications[].label
Isotope Stratigraphy and Paleodepth Changes of Pennsylvanian Cyclical Sedimentary Deposits

# publications[].label
Reevaluation of conflicting Eocene tropical temperature estimates: Molluskan oxygen isotope evidence for warm low latitudes

# publications[].label
Carboniferous paleoclimate and global change: isotopic evidence from the Russian Platform

# publications[].label
Carbonate clumped isotope compositions of modern marine mollusk and brachiopod shells

# publications[].label
Clumped isotope reordering kinetics in strontianite and witherite: Experiments and first-principles simulations

# researcherOn[].label
Into the icehouse: Dramatic changes at the Devonian-Mississippian Climate Transition (DMCT)

# researcherOn[].awardedBy.label
National Science Foundation - (Arlington, Virginia, United States)

# researcherOn[].label
Clumped Isotope Reordering Kinetics in Carbonate Minerals: The key to accurate ocean paleotemperatures and basin thermal histories

# researcherOn[].awardedBy.label
National Science Foundation - (Arlington, Virginia, United States)

# researcherOn[].label
NSF-Collaborative Reserach: Constraining Rates of C-O Bond Reordering In Biogenic Calcite: Implications for Clumped Isotope

# researcherOn[].awardedBy.label
National Science Foundation - (Arlington, Virginia, United States)

# researcherOn[].label
Collaborative Research:  Elements of an Extinction: Exploring the Delayed Caribbean Extinction With Stable Isotopes and Trace Elements

# researcherOn[].awardedBy.label
National Science Foundation - (Arlington, Virginia, United States)

# streetAddress
Texas A&M University; Geology; 3115 TAMU

# schools[]
Texas A&M Engineering Experiment Station (TEES)

# etdChairOf[].label
Roark, Andrew (2014-12). Seasonality and Environmental Heterogeneity during a Late Carboniferous Highstand: Brachiopod Shell Geochemical Records from the Pangean Tropics. Master's Thesis.

# etdChairOf[].label
Naylor, Howard Nathan (2018-08). Investigation of the Thermal History of the Delaware Basin Using Carbonate Clumped Isotope Thermometry. Master's Thesis.

# etdChairOf[].label
Barney, Bryce B (2020-10). Ocean Temperatures in the Late Ordovician: A Clumped Isotope Study of Brachiopods and Cements. Master's Thesis.

# etdChairOf[].label
Tao, Kai (2012-10). Neogene Low-latitude Seasonal Environmental Variations: Stable Isotopic and Trace Elemental Records in Mollusks from the Florida Platform and the Central American Isthmus. Doctoral Dissertation.

# etdChairOf[].label
Graniero, Lauren E (2014-12). Modern Calibrations of Temperature and Nutrient Proxies for Paleoenvironmental Reconstructions in Tropical Mollusks. Master's Thesis.

# etdChairOf[].label
Beck, William Cory (2004-11). Experimental studies of oxygen isotope fractionation in the carbonic acid system at 15, 25, and 40 (degrees)C. Master's Thesis.

# etdChairOf[].label
Strauss, Josiah (2012-02). Stable Isotope Characterization and Proxy Records of Hypoxia-Susceptible Waters on the Texas-Louisiana Shelf. Doctoral Dissertation.

# etdChairOf[].label
Shenton, Brock Jay (2014-08). Clumped Isotope Thermometry in Deeply Buried Sedimentary Carbonates: The Effects of Bond Reordering Kinetics and Recrystallization. Master's Thesis.

# etdChairOf[].label
Gentry, David Keith (2006-08). Seasonal isotope and trace-metal profiles of serially-sampled Conus gastropods: proxies for paleoenvironmental change. Master's Thesis.

# etdChairOf[].label
Depugh, Meagan Elizabeth (2019-07). Reconstructing Seasonal Temperature and Salinity in the Mid to High Latitudes of the Permian Using Brachiopod Shell ?^18O. Master's Thesis.

# etdChairOf[].label
Baskoro, Anindito (2022-12). Source Rock Reconstruction and Hydrocarbon Mass Balance Assessment - Applied to the Wolfcamp Formation in the Permian Delaware Basin. Doctoral Dissertation.

# etdChairOf[].label
Flake, Ryan Christopher (2012-07). Circulation of North American epicontinental seas during the Carboniferous using stable isotope and trace element analyses of brachiopod shells. Master's Thesis.

# etdChairOf[].label
Van Plantinga, Alexander (2015-12). Texas Brazos River Flow and Mussel Growth Reconstructions Using Stable Oxygen, Hydrogen, and Carbon Isotopes and Trace Elements. Doctoral Dissertation.