Browsing OU - Theses by Author "Elwood Madden, Andrew"
Now showing items 1-11 of 11
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ANHYDRITE NUCLEATION AND GROWTH AT LOW TEMPERATURES: EFFECTS OF FLOW RATE, ACTIVITY OF WATER, AND MINERAL SUBSTRATES
Miller, Kayla (2017-05)Understanding calcium sulfate mineral formation is crucial to understanding depositional environments and diagenetic conditions on and near the martian surface where calcium sulfates with varying hydration states have been ... -
Characterizing Ferrihydrite Transformation Products in Near-Saturated Brine Environments
Barbre, Kaydra (2023-05)Ferrihydrite transformation pathways are critical in understanding iron cycling and mineral transformation processes in extraterrestrial systems such as those observed on Mars. While common throughout terrestrial near-surface ... -
Evaluating Cation Exchange as a Driver for Manganese Release During Carbonate Dissolution
Maples, Brandon (2020-12-18)The Central Oklahoma Aquifer (COA) is a heterogeneous siliciclastic aquifer with clays and small amounts of Mn-containing dolomite scattered throughout. Areas of COA groundwater are well-known for the presence of naturally ... -
Evolution of the Hydrothermal Stage within Miarolitic Cavities in Granitic Pegmatites of California and Maine, USA
Duval, Charles (2019-08-01)Clay and alkali feldspar samples from miarolitic cavities of the pegmatites of Maine and California provide some of the best lines of evidence for gaining a better understanding of the hydrothermal stage within the pockets. ... -
Impacts of well pumping on trace metals in the Central Oklahoma Aquifer, Norman, OK
Tomlinson, Zachary (2021-12-18)Due to increasing global demand for fresh water, it is increasingly necessary to understand how aquifer pumping affects groundwater chemistry. Water quality may be affected by mobilizing naturally occurring salts or trace ... -
An Integrated Paleomagnetic and Diagenetic Study of the Womble Shale in the Benton Uplift, Arkansas
Smith, Elizabeth (2021-05-16)The objective of this project is to conduct an integrated paleomagnetic and diagenetic study of the Ordovician Womble Shale in Mt. Ida, Arkansas, in order to test if diagenetic events can be identified and dated with ... -
Observations of Mars analogous basalt in near saturated brines
Rodriguez, Andrew (2020-05)The Mars 2020 rover and the ExoMars rover will include a Raman spectrometer as part of the suite of instruments onboard the rovers and will be the first times a Raman spectrometer will take direct measurements on the surface ... -
Redox interfaces in the proximal Permian Cutler Formation, Mesa County, Western Colorado
Hullaster, Desiree (2019)Diagenetic and hydrothermal fluid alteration of ancient sedimentary rocks create visible ferrous (green)/ferric (red) redox interfaces attributable to changes in iron oxide and phyllosilicate mineralogy. Redox interfaces ... -
Riparian Nitrate and Phosphate Removal Under Future Climate Scenarios
Clements, Jacob (2024-05-11)Riparian buffer zones are specially managed zones that lie between agricultural fields and rivers, lakes, or wetlands. They are crucial for protecting water quality, human health, and ecosystem function. Critical ecosystem ... -
Seasonal Influences on the Molecular and Metal Binding Properties of Groundwater & Surface Water Dissolved Organic Matter (DOM) in an Alpine Watershed Located in Central Colorado
Gallagher, Chelsey (2021-05-16)The nature and behavior of surface water and groundwater chemistry in alpine watersheds is influenced by snowmelt-driven hydrology. This study investigated the effects of seasonal variability in groundwater and surface ... -
STRATIGRAPHIC AND TEXTURAL ANALYSIS OF NANODIAMONDS ACROSS THE YOUNGER DRYAS BOUNDARY SEDIMENTS OF WESTERN OKLAHOMA
Sexton, Molly (2016)Exposed sediment profiles of the panhandle of western Oklahoma have previously been shown to contain two peak abundances of nanodiamonds, one dated approximately to the Younger Dryas and the other from the Late Holocene. ...