A5007279395- Geology and Paleoclimatology Research
- Isotope Analysis in Ecology
- Paleontology and Stratigraphy of Fossils
- Marine Biology and Ecology Research
- Hydrocarbon exploration and reservoir analysis
- Marine Bivalve and Aquaculture Studies
- Methane Hydrates and Related Phenomena
- Groundwater and Isotope Geochemistry
- Atmospheric and Environmental Gas Dynamics
- Geological Studies and Exploration
- Marine and coastal ecosystems
- Geochemistry and Elemental Analysis
- Geological and Geochemical Analysis
- Aquatic Invertebrate Ecology and Behavior
- Geochemistry and Geologic Mapping
- Astro and Planetary Science
- Hydraulic Fracturing and Reservoir Analysis
- Calcium Carbonate Crystallization and Inhibition
- Ocean Acidification Effects and Responses
- Coral and Marine Ecosystems Studies
- Groundwater flow and contamination studies
- Evolution and Paleontology Studies
- Water Quality and Resources Studies
- Geological and Geophysical Studies
- Mine drainage and remediation techniques
Texas A&M University
2016-2025
Mitchell Institute
2000-2023
United States Geological Survey
2002
University of Oklahoma
1997
Johnson Space Center
1988
University of Southern California
1984-1986
Abstract The oxygen isotope compositions of carbonate and phosphatic fossils hold the key to understanding Earth-system evolution during last 500 million years. Unfortunately, validity interpretation this record remain unsettled. Our comprehensive compilation Phanerozoic δ 18 O data for phosphate microfossils (totaling 22,332 4615 analyses, respectively) shows rapid shifts best explained by temperature change. In calculating paleotemperatures, we apply a constant hydrosphere O, correct...
Research Article| July 01, 1999 Carboniferous isotope stratigraphies of North America: Implications for paleoceanography and Mississippian glaciation Horng-sheng Mii; Mii 1Department Geology Geophysics, Texas A&M University, College Station, 77843 Search other works by this author on: GSW Google Scholar Ethan L. Grossman; Grossman Thomas E. Yancey Author Article Information Publisher: Geological Society America First Online: 01 Jun 2017 Online ISSN: 1943-2674 Print 0016-7606 GSA Bulletin...
Research Article| May 01, 1991 Oxygen isotopes in meteoric calcite cements as indicators of continental paleoclimate Phillip D. Hays; Hays 1Department Geology, Texas A&M University, College Station, 77843 Search for other works by this author on: GSW Google Scholar Ethan L. Grossman Geology (1991) 19 (5): 441–444. https://doi.org/10.1130/0091-7613(1991)019<0441:OIIMCC>2.3.CO;2 Article history first online: 02 Jun 2017 Cite View This Citation Add to Manager Share Icon MailTo Twitter LinkedIn...
Abstract Rising CO 2 concentration in the atmosphere, global climate change, and sustainability of Earth's biosphere are great societal concerns for 21st century. Global change has, part, resulted a higher frequency flooding events, which allow greater exchange between soil/plant litter aquatic carbon pools. Here we demonstrate that summer 2011 flood Mississippi River basin, caused by extreme precipitation “flushing” terrestrially derived dissolved organic (TDOC) to northern Gulf Mexico....
The alluvial aquifer adjacent to Norman Landfill, OK, provides an excellent natural laboratory for the study of anaerobic processes impacting landfill-leachate contaminated aquifers. We collected groundwaters from a transect seven multilevel wells ranging in depth 1.3 11 m that were oriented parallel flow path. center leachate plume was characterized by (1) high alkalinity and elevated concentrations total dissolved organic carbon, reduced iron, methane, (2) negligible oxygen, nitrate,...
Research Article| October 01, 1993 Stable isotopes in Late Pennsylvanian brachiopods from the United States: Implications for Carboniferous paleoceanography ETHAN L. GROSSMAN; GROSSMAN 1Department of Geology, Texas A&M University, College Station, 77843 Search other works by this author on: GSW Google Scholar HORNG-SHENG MII; MII THOMAS E. YANCEY Author and Article Information Publisher: Geological Society America First Online: 01 Jun 2017 Online ISSN: 1943-2674 Print 0016-7606 GSA Bulletin...
Oxygen isotope paleotemperature studies of the Mesozoic and Paleozoic are based mainly on conodonts, belemnite guards, brachiopod shells—material resistant to diagenesis generally precipitated in oxygen equilibrium with ambient water. The greatest obstacle accurate paleothermometry deep time is uncertainty isotopic composition seawater. second fossil diagenesis. Useful application method shells requires extreme care sample screening analyses, best done scanning-electron microscopy,...
Research Article| July 01, 2015 Clumped isotope thermometry in deeply buried sedimentary carbonates: The effects of bond reordering and recrystallization Brock J. Shenton; Shenton † 1Texas A&M University (TAMU), Department Geology & Geophysics, College Station, Texas 77843, USA †brock.shenton@gmail.com. Search for other works by this author on: GSW Google Scholar Ethan L. Grossman; Grossman Benjamin H. Passey; Passey 2Johns Hopkins University, Earth Planetary Sciences, Baltimore, Maryland...
ABSTRACT To improve our ability to use minor and trace element (MTE) variation in biotic carbonates as diagenetic paleoenvironmental indicators, we performed electron probe microanalysis on more than 100 Late Pennsylvanian brachiopod shells from Texas, Kansas, Missouri, New Mexico. Texturally preserved specimens of the genera Crurithyris, Composita, Neospirifer all three regions were analyzed, Eridmatus Texas. Twenty measurements made two transects across each shell. Shell microstructure...