Browsing by Department "Geosciences"
Now showing items 41-60 of 92
Geochemical Modeling Study of Shale–Brine–CO2 Interaction
(2021-05-04)
A promising large-scale mitigation option for reducing CO2 footprint is Geological Carbon Sequestration (GCS) in depleted oil and gas reservoirs and deep saline aquifers. This study investigated the interaction between CO2 ...
Geochemical Studies of the Battleship Rock Ignimbrite, Valles Caldera, New Mexico
(2023-08-07)
Valles Caldera is the third largest active super volcano in the United States. Despite this, it remains a poorly understood volcanic system. Evidence has been presented within the last 5 years that suggests that Valles ...
Geochemistry and Mineralogy of Contaminant Groundwater and Sediments from Coastal Aquifers of Southwest Bangladesh
(2023-08-07)
The groundwater in the coastal aquifers of Bangladesh contains high levels of salt concentration and naturally occurring arsenic (As), which may affect human health. Especially in the southwest coastal region of the country, ...
Geochemistry of Groundwater and Naturally Occurring Pyrite in the Holocene Fluvial Aquifers in Uphapee Watershed, Macon County, Alabama
(2019-08-09)
Naturally occurring biogenic pyrite has been found in Holocene fluvial aquifers in Uphapee watershed, Macon County, Alabama. The electron microprobe (EMP) analysis showed that the pyrite grains contain 0.20-0.92 weight% ...
Geology of the Alexander City 7.5’ Quadrangle, Alabama and U-Pb Zircon Dating of the Elkahatchee Quartz Diorite, southernmost Appalachian orogen
(2019-04-26)
Geological mapping of the Alexander City Quadrangle in the eastern Blue Ridge of the Southern Appalachian orogen in Alabama reveals newly recognized units and supports multi-phase magmatism within the 880 km2 Elkahatchee ...
Geology of the Milltown Alabama 7.5’ Quadrangle and 40Ar/39Ar geochronology of muscovite from select rocks of the east-central Alabama Piedmont
(2018-12-13)
The Milltown 7.5’ Quadrangle is located within east-central Alabama and
contains features important to understanding the formation of the southern
Appalachians. The Brevard fault zone passes through the Milltown Quadrangle ...
Geology of the Moscow Landing Section, Tombigbee River, Western Alabama, with Focus on Ichnologic Aspects of the Lower Paleocene Clayton Formation
(2019-06-07)
Sedimentologic and ichnologic studies were performed on units of the Moscow Landing section, a ~1.5-km exposure of Upper Cretaceous and Lower Paleocene strata along the west bank of the Tombigbee River, Sumter County, ...
Ground-Penetrating Radar (GPR) Survey and Spatial Analysis of the George and Addie Giddens Cemetery, Opelika, AL
(2022-04-26)
Recent interest in locating and preserving the cemeteries of enslaved African Americans has increased the need for non-invasive geophysical techniques and efficient methodologies. The southeast United States provides many ...
Groundwater Response to Climate Change and Anthropogenic Forcing: A Case Study on Georgia, U.S.A.
(2019-04-16)
This study analyzed the effects of climate variability and human activities (i.e., irrigation) on groundwater levels from 1981-2017 in four distinct geologic provinces of Georgia. Georgia is located in the southeastern ...
A high-resolution paleoclimate record of precipitation variability from a stalagmite in northern Cuba spanning the late-Holocene
(2020-05-14)
I present a new stalagmite δ18O record, named CL, collected from Garibaldi Cave in Matanzas, Cuba that spans between 322 and 3,747 years before present (BP). This study investigates hydroclimate drivers in Cuba and their ...
How Resilience Changes with Spatial Extent and Scale: A Case Study of Sea Level Rise in Coastal Mississippi, Alabama, and Florida
(2020-07-14)
Resilience is a term used in natural hazards and disasters research to describe a community’s ability to recover after a damaging hazard event occurs. It is within this context that resilience is often measured using ...
Impact Induced Landslides as a Mechanism for Diffusive Degradation of Complex Craters found Near the Lunar Southern Pole
(2022-05-05)
Throughout its history, the Moon’s surface has experienced numerous impact cratering events. Such events have degraded the surface through various processes. Processes include ejecta blanketing, overlapping (cookie cutting), ...
Insights on Coarse Sediment Routing in Tributaries of the Buffalo National River, AR
(2023-11-28)
Sediment routing studies are of particular importance to understanding geomorphic changes in fluvial systems. Although tributary-derived sediment inputs serve as primary sources of sediment in main stems, few in-situ studies ...
Integrated Spatial and Social Network Analysis of Conflict Impacts on Food Production in Eastern Ukraine; A Geospatial Perspective
(2024-01-26)
Ukraine-Russian geopolitical relations over the years have experienced periods of tranquility and violence with conflicts since 1917, including the events of the 2014 annexation of Crimea and the 2022 Russian invasion of ...
Investigating E. coli Contamination in Choccolocco Creek, AL
(2022-08-16)
Pathogen loading, specifically high Escherichia coli (E. coli) concentrations, is a major cause for poor surface water quality worldwide. Many rivers and streams are used recreationally, and contamination poses a communal ...
Investigation of a Novel Application of Optically Stimulated Luminescence (OSL) for Sediment Fingerprinting
(2023-04-26)
Optically Stimulated Luminescence (OSL) is a tool that is commonly used to measure the
length of time a quartz or feldspar grain has been buried in a sediment deposit. Recently there
have been advances in using OSL as ...
AN INVESTIGATION OF NATIVE COPPER IN PLAGIOCLASE, LAKE AND HARNEY COUNTIES, OREGON
(2022-05-02)
Mafic igneous rocks are commonly associated with various metals and there are many examples of basalts that host small amounts of native copper. Such copper is more common among the matrix phases of basalts and could ...
Irrigation and Water Use Reporting in the Tennessee Valley Region of Alabama
(2019-06-27)
Irrigation is the largest consumptive use of water in the United States. Accurate monitoring of water use for irrigation is critical for a state to sustainably manage its water resources. Federal programs provide valuable ...
Isotopic Fractionation of Chlorinated Hydrocarbon Compounds During Sorption to Activated Carbon
(2024-04-29)
Activated carbon (AC) amendments are leading remediation efforts of groundwater systems containing organic contaminants. More recently, in situ AC treatment is being explored to sequester contaminants in place. However, ...
Linking Observed Seismicity to Crustal Structure in the New Madrid Seismic Zone Using Gravity and Magnetic Modeling
(2019-07-23)
The New Madrid Seismic Zone in the Central United States is a highly active seismic zone. Research has focused on the subsurface structure and history of development in order to gain better insight into the cause of these ...