Open Access. Powered by Scholars. Published by Universities.®
- Discipline
-
- Geology (26)
- Sedimentology (15)
- Stratigraphy (8)
- Environmental Sciences (6)
- Geomorphology (4)
-
- Hydrology (4)
- Oil, Gas, and Energy (4)
- Environmental Monitoring (2)
- Geophysics and Seismology (2)
- Astrophysics and Astronomy (1)
- Biogeochemistry (1)
- Civil Engineering (1)
- Civil and Environmental Engineering (1)
- Cosmochemistry (1)
- Education (1)
- Engineering (1)
- Materials Science and Engineering (1)
- Natural Resource Economics (1)
- Natural Resources and Conservation (1)
- Other Earth Sciences (1)
- Paleobiology (1)
- Paleontology (1)
- Physical Processes (1)
- Secondary Education (1)
- Tectonics and Structure (1)
- The Sun and the Solar System (1)
- Keyword
-
- Geochemistry (5)
- Carbonate Diagenesis (2)
- Chemostratigraphy (2)
- Cyclothems (2)
- Deepwater Horizon (2)
-
- Grenville Basement (2)
- Gulf of Mexico (2)
- Hydrogeology (2)
- Lacustrine sedimentation rates (2)
- Lake Sediments (2)
- Midland Basin (2)
- Organic carbon (2)
- Paleoecology (2)
- Petrography (2)
- Provenance (2)
- Springs (2)
- Stable Isotope Analysis (2)
- Stable isotope (2)
- Stratigraphy (2)
- Alleghanian (1)
- Alluvial Aquifer (1)
- Amazonia (1)
- Appalachian Tectonics (1)
- Back-bulge basin (1)
- Benthic processes (1)
- Blue Ridge (1)
- Blue Ridge Provence (1)
- Blue Ridge Province (1)
- CO2 Enhanced Oil Recovery (1)
- CSA Cement (1)
Articles 31 - 34 of 34
Full-Text Articles in Geochemistry
Temporal And Spatial Characterization Of Macondo 252 Signatures In Gulf Of Mexico Shelf And Slope Sediments, Olivia P. Woodruff
Temporal And Spatial Characterization Of Macondo 252 Signatures In Gulf Of Mexico Shelf And Slope Sediments, Olivia P. Woodruff
Theses and Dissertations--Earth and Environmental Sciences
The long-term fate of hydrocarbons in the Gulf of Mexico (GOMx) following the 2010 Deepwater Horizon oil spill has yet to be fully characterized. Elemental (% C and % N), stable isotopes (δ13Corganic), and polycyclic aromatic hydrocarbon (PAH) molecular signatures were investigated in shelf and slope sediments collected in October 2010 and 2011 to gain insight into processes affecting the distribution and fate of spilled Macondo oil. Particulate organic carbon (POC) ranged between 1.55 and 2.22 wt. % in 2010 and 0.55 and 2.06 % in 2011 while the corresponding δ13Corganic ranges were …
Modeling Of Co2-Water-Rock Interactions In A Mississippian Sandstone Reservoir Of Kentucky, Anne M. Schumacher
Modeling Of Co2-Water-Rock Interactions In A Mississippian Sandstone Reservoir Of Kentucky, Anne M. Schumacher
Theses and Dissertations--Earth and Environmental Sciences
This study examined CO2-water-rock interactions occurring during a carbon sequestration pilot test into a Mississippian oil reservoir in western Kentucky. New samples (n=62) and archived data, both collected from oil wells, were used to characterize the chemistry of formation waters from the Sugar Creek field in Hopkins County. In addition, core and cuttings samples (n=17) from the reservoir and overlying cap-rocks in, or near, the field were analyzed for bulk and clay mineralogy using X-ray diffraction. Electric logs were used to select sample intervals within the overlying cap-rocks and the center of the producing zones in the Jackson …
Distribution And Impacts Of Petroleum Hydrocarbons In Louisiana Tidal Marsh Sediments Following The Deepwater Horizon Oil Spill, Rachel S. Hatch
Distribution And Impacts Of Petroleum Hydrocarbons In Louisiana Tidal Marsh Sediments Following The Deepwater Horizon Oil Spill, Rachel S. Hatch
Theses and Dissertations--Earth and Environmental Sciences
Following the 2010 Deepwater Horizon (DWH) spill, sediment cores were analyzed from marshes at various levels of oiling to determine how deeply oil penetrated sediment in these marsh environments, and if at these sites it had quantifiably affected benthic ecosystems. Minimum mixing depths were determined from penetration of the lithogenic radionuclide 234Th, which ranged from 0.25 to 4.5 cm. Sediment accumulation rates were determined using 210Pb, with verification from 137Cs in selected cores. Lead-210 profiles revealed long-term (decadal) mixing. Bay Jimmy, Louisiana was significantly affected by the DWH oil spill, as indicated by total polycyclic aromatic hydrocarbon …
The Evolution Of Grenville Basement In The Eastern Great Smoky Mountains; Constraints From U-Pb Zircon Geochronology, Whole Rock Sm-Nd, And Feldspar Pb Geochemistry, Ryan Joel Quinn
Theses and Dissertations--Earth and Environmental Sciences
Identifying the crustal affinity of Grenville basement rocks in the Dellwood quadrangle, western NC, provides insight into the tectonic evolution of eastern Laurentia during Grenville orogenesis. U-Pb zircon geochronology of orthogneiss, augen gneiss, and mafic xenoliths in orthogneiss reveal magmatic pulses at 1130, 1180, and 1330 Ma and metamorphic episodes at 450 and 1040 Ma. Xenoliths in 1330 Ma orthogneiss are as old as 1382 Ma and represent the oldest component of Blue Ridge basement identified to-date. Feldspar Pb isotope values span a range between juvenile-Laurentian and southern-central Appalachian basement/Amazonia. Most Pb isotope data define an array consistent with crustal …