Sub-Surface Structural Analysis Of The Appalachian Basin In Morrow County, Ohio, 2021 Stephen F Austin State University
Sub-Surface Structural Analysis Of The Appalachian Basin In Morrow County, Ohio, Adrian Isaiah-Sias Valdez
Electronic Theses and Dissertations
Located in the western most region of the Appalachian Basin, Morrow County, Ohio, was once one of the largest oil-producing regions in the nation and continually produces today. To date, approximately 30 million barrels of oil and 6.5 billion cubic feet of gas have been produced, primarily from the Copper Ridge Dolomite. Past studies suggest that regional remnant doming within the Copper Ridge accounts for production, however it is hypothesized that faulting within the basement rock exerts an important control on trapping and migration of hydrocarbons. In order to gain insight into the underlying structure and the causes of ...
Spatial And Temporal Patterns Of River Incision And Terrace Deposition In Response To Climate And Tectonics In Southern Taiwan, Dominique M. Shore
All Graduate Theses and Dissertations
Geologists often look at the Earth’s surface to understand the underlying processes that cause mountain formation. As tectonic forces drive uplift of Earth’s surface, processes of erosion transport sediment to lower elevations. Climate can play a large role in landscape formation as well as increased precipitation, accelerating rates of erosion. Rivers leave markers of landscape evolution through terrace landforms, former river floodplains that are left behind when rivers incise into a valley. To better understand landscape response to uplift, this research investigated the initial linkages between uplift, hillslope erosion (mass wasting) and river incision. At some point, it ...
Taphonomy Of Late Jurassic (Tithonian) Morrison Formation Apatosaurus Sp. Vertebrae Found Associated With Teeth From Allosaurus Sp. And Ceratosaurus Sp., And Body Size Extrapolation From The Associated Theropod Teeth., 2021 Utah State University
Taphonomy Of Late Jurassic (Tithonian) Morrison Formation Apatosaurus Sp. Vertebrae Found Associated With Teeth From Allosaurus Sp. And Ceratosaurus Sp., And Body Size Extrapolation From The Associated Theropod Teeth., Greg C. Agyan
All Graduate Plan B and other Reports
An Apatosaurus sp. locality from Dinosaur National Monument designated DNM-15 was excavated in 1985, and associated with two Allosaurus teeth and one Ceratosaurus tooth that were near one of the caudal vertebrae. The Ceratosaurus tooth was buried between an overlying rib and that same caudal vertebra. The caudal vertebrae of the DNM-15 Apatosaurus were intact and articulated, but the anterior skeleton was mostly absent, with a row of articulated sacral vertebrae in close association with a femur. Two other Allosaurus teeth were reported near the preserved ilium of the Apatosaurus, but they could not be located in the collections.
The Biggest Snowball Fight In Earth History: Stratigraphy, Facies Analysis, And Geochronology Of The Pocatello Formation, Matthew W. Ellison
All Graduate Theses and Dissertations
The Snowball Earth Hypothesis details a time in Earth’s history (the Cryogenian period) where the entire planet was encapsulated by kilometer thick ice sheets for two, multi-million-year glaciations. The first, known as the Sturtian, lasted from 717 – 660 million years ago while the second, known as the Marinoan, lasted form approximately 650 – 635 million years ago. Snowball Earth was caused by a few processes that sort of built upon each other: Rodinia began splitting apart ~740 million years ago which allowed for increased rates of silicate weathering. High rates of silicate weathering resulted in CO2 drawdown which in ...
Three Centuries Of Vegetation Change In The William & Mary College Woods Reconstructed Using Phytoliths, Timothy Terlizzi
Undergraduate Honors Theses
The College Woods, west of William & Mary’s campus, consists of ~900 acres of protected southern mixed hardwood forest. The woods surround Lake Matoaka, a former millpond established in ~1700. Despite the rich history of the area, little is known about how the dominant vegetative landcover has shifted over the last 300 years. This study set out to quantify the modern vegetation within the College Woods via the phytolith assemblages within the soil and identify shifts in the assemblages since the creation of Lake Matoaka and whether these changes are distinct from the vegetation that existed in the area before the lake. To accomplish this, I studied the composition and preservation of phytoliths – silica bodies generated within and between plant cells. The study focused on the two questions: do the modern phytolith assemblages in the soil of the College Woods reflect the vegetation present and can phytoliths within the sediments of Lake Matoaka be used to identify the dominant vegetative communities over the last ~300 years? I addressed these questions with three approaches: 1) Identify the primary phytolith producing taxa within the College Woods; 2) Identify the modern phytolith assemblages within the soil of the College Woods; 3) Identify the differences between phytolith assemblages from the lake sediment core samples. I found the following: 1) The production of phytoliths varies heavily between and within different common taxa of the College Woods, with species of oaks (Quercus spp.) unpredictably producing phytoliths and beeches (Fagus grandifolia) likely contributing the majority of dicot phytoliths; 2) The modern phytolith assemblages of the College Woods reflect a low phytolith producing environment, and the vegetative homogeneity is reflected in the phytolith record; 3) The ...
Dynamic Topography Of The St. Francois Mountains, 2021 Missouri University of Science and Technology
Dynamic Topography Of The St. Francois Mountains, Joshua Carpenter
Undergraduate Research Conference at Missouri S&T
The purpose of this research project was to search for evidence of relict topographic surfaces in the St. Francois Mountains that preserve a history of regional and/or global forces. To accomplish this, topographic cross-sections were taken in Google Earth to examine changes in the region's topography with focus towards the following features: sub-horizontal surfaces, knickpoints, and valley floors. Elevation data was then collected and plotted in Excel. This revealed sub-horizontal surfaces between elevations of ~1780-1545 ft; knickpoints between ~1700-900 ft; and valley floors at ~1470-1350 ft. and ~1200-900 ft. The sub-horizontal surfaces are interpreted as relict peneplains preserved ...
Equation Of State For Natural Almandine, Spessartine, Pyrope Garnet: Implications For Quartz-In-Garnet Elastic Geobarometry, 2021 University of Nevada, Las Vegas
Equation Of State For Natural Almandine, Spessartine, Pyrope Garnet: Implications For Quartz-In-Garnet Elastic Geobarometry, Suzanne R. Mulligan, Elissaios Stavrou, Stella Chariton, Oliver Tschauner, Ashkan Salamat, Michael Wells, Alexander G. Smith, Thomas D. Hoisch, Vitali Prakapenka
Geoscience Faculty Publications
The equation of state (EoS) of a natural almandine74spessartine13pyrope10grossular3 garnet of a typical composition found in metamorphic rocks in Earth’s crust was obtained using single crystal synchrotron X-ray diffraction under isothermal room temperature compression. A third-order Birch-Murnaghan EoS was fitted to P-V data and the results are compared with published EoS for iron, manganese, magnesium, and calcium garnet compositional end-members. This comparison reveals that ideal solid solution mixing can reproduce the EoS for this intermediate composition of garnet. Additionally, this new EoS was used to calculate geobarometry on a garnet sample from the same rock, which was collected from ...
An Assessment Of The Spatial And Temporal Distribution Of Microplastics In Surface And Subsurface Sediment Of Lake Huron, North America, 2021 The University of Western Ontario
An Assessment Of The Spatial And Temporal Distribution Of Microplastics In Surface And Subsurface Sediment Of Lake Huron, North America, Sara L. Belontz
Electronic Thesis and Dissertation Repository
The awareness of and the data on the prevalence of microplastic (plastic particles <5mm) pollution in freshwater environments is rapidly increasing, as low-degrading polymers are being detected in various environmental matrices of the Laurentian Great Lakes. However, the accumulation, distribution and deposition of microplastics in offshore depositional environments of the Great Lakes, and particularly Lake Huron, is relatively unknown. In this study, benthic sediment from various Lake Huron waterbodies (main basin, Georgian Bay, the North Channel, and Saginaw Bay) was quantified for microplastic particles (fibres, fragments, films, and beads). The North Channel contained the greatest microplastic abundances, averaging 47,398 particles per kg-1 dry weight sediment (p kg-1 dw), followed by Georgian Bay (21,390 p kg-1 dw), the main basin (15,910 p kg-1 dw) and Saginaw Bay (1,592 p kg-1 dw). The results suggest that microplastic abundances in offshore settings are positively correlated with increasing water depth (p=0.004) and are controlled by lake bottom geomorphology. Hydrodynamic processes are a prevailing force driving microplastic dispersion and deposition into the offshore, in contrast to source-based drivers closer to the shoreline. Sediment cores ...5mm)>
312— Mineralogical Analysis Of Slag From Iron Production In The Adirondack State Park, Mary Reid, Griffin Rose
Slag is a byproduct of iron production formed from the melting of iron-bearing rocks. Iron production in the Adirondacks reached a high in the early to mid 1800s, with many blast furnaces in operation throughout Northern New York. Two sets of samples from different regions in the Adirondacks were collected in the summers of 2019-2020. An unknown sample was taken from the Ausable River at Flume Falls near Wilmington, New York, while other samples were collected from the Mt. Hope iron furnace near Fort Ann, New York. Samples were analyzed through the creation of thin sections and x-ray diffraction. Results ...
075— A Test Of The Efficacy Of The Augmented Reality Sandbox To Improve Students' Reading Topographic Map Skills, Megan Jankowiak, Alexandra Ranaudo
The augmented reality (AR) sandbox is a teaching tool used to connect two-dimensional (2D) and three-dimensional (3D) map representations through modeling. Our hypothesis is: the AR sandbox is effective at teaching topographic map reading skills by comparing pre vs. post test scores. Student data was processed to analyze the efficiency of using the AR sandbox to increase student ability to read topographic maps. Data consists of student answers on a topographic map reading skills test at the beginning and the end of a Historical Geology college course. Between tests, students used the AR sandbox to complete short exercises during multiple ...
200— Chemical Analysis Of Slag From Standish, Ny, 2021 SUNY Geneseo
200— Chemical Analysis Of Slag From Standish, Ny, Maria Leonard, Dori Farthing
From 1883 to 1907, magnetite was smelted in Standish, NY. During this time, a large amount of slag, a byproduct of smelting, was created. The slag is now in a pile that covers ~13 acres in the northeastern region of the Adirondacks. The slag at the site has been classified into 6 broad types based on their physical properties. Exemplars of select types were crushed and analyzed by X-ray fluorescence spectroscopy (XRF). Both major elements and trace element data was collected for these samples. The XRF results indicate that all Standish slag is dominated by SiO2, CaO, and Fe2O3(t ...
205— Revisiting The Geologic History Of The Pathfinder Landing Site At Ares Vallis, Mars, Andrew Agent
Before NASA sent the Pathfinder lander and Sojourner rover to the mouth of Ares Vallis in 1997, they anticipated the discovery of Hesperian-age (3.6 Ga-3.0 Ga) sediments deposited from catastrophic outflows. When pictures came back, the rocks they discovered were large, boulder-size, angular, and were largely inconsistent with transport by large floods. The origin of the deposits at the Pathfinder landing site remains controversial. This study aims to constrain the surface geology of the Pathfinder landing site using new high-resolution imagery and crater statistics. Context Camera (CTX) images along with High-Resolution Imaging Experiment (HiRISE) images were used to ...
299— Determining Accuracy Of Xrd From Known Samples, 2021 SUNY Geneseo
299— Determining Accuracy Of Xrd From Known Samples, Collin Horrocks
Powdered x-ray diffraction (XRD) is a technique that has the power to identify minerals and the proportion of the minerals in a mixture. A mineral is defined by a repeatable set of planes between atoms that form the crystal lattice. It is this repetition that allows the process of XRD to work. The process is done by taking a powdered sample and placing it into the machine and then shooting x-rays into the sample causing diffraction. From this using Bragg’s Law we can determine the d-spacing which is how an identity is determined for a sample and the intensity ...
201— Diversity, Equity, And Inclusion Within The Department Of Geological Sciences At Suny Geneseo, Maria Leonard
The field of Geosciences historically has lacked diversity. This lack of diversity is observed at all levels of higher education—for example, 90% of doctoral degrees are awarded to white people (Wilson, 2016) and only 3.8% of tenured or tenure track positions at the top 100 geoscience departments are held by faculty of color (Bernard & Cooperdock 2018). There are multiple reasons at the heart of this issue including the lack of representation which can fuel stereotype threats and imposter syndromes.
This project aimed to take actions that would help grow the diversity, equity, and accessibility within Geneseo’s GSCI ...
357— Dacryoconarids Of The Genundewa And West River Formations, Upper Devonian In Western New York, Emily De Jong
The Dacryoconarids, small, thin-walled, and cone-shaped, are an extinct taxon in Class Tentaculitoidea, which is of uncertain affinities. Dacryoconarids were widespread throughout the middle Silurian to the Late Devonian when they went extinct. This study focuses on the lower Upper Devonian Dacryoconarids of the Genundewa and West River formations from western New York State. Samples collected from these formations revealed many smooth shelled Styliolinids, however, no difinitive ribbed Dacryoconarids. Calcite was found to have internally filled in the shell of some Styliolinids, showing how thin the external shell is and raising questions about septa orientations. Due to their global occurrence ...
069— Geomorphic Characteristics Of Canadice Lake, Ny, Watersheds And The Anthropogenic Effects On Watershed Output And Sensitivity, Carla Crampton
Land use and size of watershed catchment areas affects the overall health and water quality of Canadice Lake. Methods in ArcGIS Pro were used for high resolution imagery and topography data to analyze the geomorphology of watersheds at Canadice Lake. Watersheds were mapped using ArcGIS Hydrology tools by constructing flow direction and accumulation grids. In each individual watershed, total area of the watershed, area of residential and agricultural land use, and total length of roads was determined to evaluate which watersheds are most sensitive to human impact and which watersheds are likely to contribute the highest flow discharge and sediment ...
344— Wetland Soil, 2021 SUNY Geneseo
344— Wetland Soil, Abigale O'Connor
This project classified soil properties in the vicinity of a wetland in Livonia, NY. Soil cores were collected from the margin of the wetland to observe the changes in the soil profiles across the transition between the wetland and the surrounding forested land. Soil horizons were delineated based on texture and color. Individual horizons were then correlated between the cores to capture spatial changes in thickness and texture. The core descriptions and the correlations were digitized to create an archive of correlations around the wetland for future reference. The distribution of wetland soil textures contributes to better understanding how water ...
024— Optimizing 3d Model Construction Of Rock And Fossil Specimens To Increase Accessibility In An Online Learning Environment, Jaclyn Barreca, Frazer Bourgeois
Three-dimensional modeling of physical objects has become increasingly applicable in the field of geology. A digital collection of samples is important to have in the event of physical loss, as a means to communicate among scientists in reference to a particular sample, to aid in the preservation of original samples, and is particularly relevant in today’s pandemic. Digital models allow for the option of remote learning for students and stops the need for the sharing of physical samples. It also increases accessibility of samples. The problem of generating a 3D model of an object has already been solved; this ...
328— Watershed Analysis Of The Eberswalde Delta (Early Hesperian), Mars, 2021 SUNY Geneseo
328— Watershed Analysis Of The Eberswalde Delta (Early Hesperian), Mars, Jason Mueller
The Eberswalde Delta is an impressive Martian fluvial-deltaic system. It is fed by an Earth-like dendritic river system that indicates past precipitation. This study is designed to quantify controls on network morphometry and its past extent using Esri ArcMap. Upstream contributing area (km2), elevation (m), depth (m), width (m), W/D ratio, and slope (-m/m), were calculated and graphed by stream order and long profiles. Width/depth increased with distance downstream but fluctuated in the fifth-order channel that was convex with knickpoints. This implied the system was youthful. The fourth-order stream was concave and in a sedimentary sub-basin. This ...
Bedrock To Buildings, 2021 University of Maine at Farmington
Bedrock To Buildings, Bryer Carlson
Michael D. Wilson Symposium
This poster explores Maine's bedrock in relation to the state's infrastructure.