The Design and Construction of the Texas Christian University Impedance Tube

Type: Undergraduate
Author(s): Claire Elrod Engineering
Advisor(s): Hubert (Seth) Hall Engineering
Location: Second Floor, Table 6, Position 1, 1:45-3:45

The two-microphone impedance tube test method is a well-established and widely used technique for determining the acoustic absorption coefficient and impedance ratio of materials. This method uses two closely spaced microphones to simultaneously measure the incident and reflected sound waves. A two-microphone impedance tube measurement system made of 6061-T6 Aluminum with a diameter of 3 inches, a 0.5 inch wall thickness, and microphones spaced 2.7 inches apart has been constructed for undergraduate research at Texas Christian University (TCU). These geometrical values suggest a usable frequency range of 50 Hz to 2637.77 Hz as referenced in ASTM Standard E1050-19. Validation of the system was achieved by taking measurements on Owen Corning Type 705 pressed fiberglass board with a 1-inch thickness and comparing them to absorption data provided by the manufacturer. Additional validation measurements were taken without a test sample in place. All validation tests suggest that the TCU impedance tube is an accurate measurement system.

Effectiveness of Using Different Liquid Misting Applicators to Kill Bacteria

Type: Undergraduate
Author(s): Eli Gonas Engineering Kate Folkens Engineering Rose Ibarra Engineering Isaac Nieto Engineering Marcus Semmelmann Engineering
Advisor(s): Robert Bittle Engineering
Location: Third Floor, Table 5, Position 2, 11:30-1:30

Bacteria, the primary agents of infection in humans, are present on nearly all surfaces. To mitigate the spread of bacteria and infections, disinfectants are commonly used. This study explored the effectiveness of common disinfectants and different methods of disinfection, primarily focusing on the use of spray pumps and a transducer as a mechanism to disinfect surfaces using 70% IPA (Isopropyl Alcohol) or ethanol (often referred to by the brand name Lysol). Tests were conducted on bacterial lawns before incubation. The effectiveness of the tests was determined by observing bacterial growth over the next 24 hours after disinfection. Testing proved that both ethanol and 70% IPA are effective in stopping bacterial growth. While both the transducer and spray pump methods showed success, the transducer/ethanol combination was particularly efficient, using the least amount of disinfectant.

Characterization of Thermal Oxide Growth Rate on Silicon

Type: Undergraduate
Author(s): Nhu Le Engineering
Advisor(s): Jim Huffman Engineering
Location: Basement, Table 7, Position 1, 11:30-1:30

Thermal oxidation is an important process to create a thin film of silicon dioxide on silicon substrates in microfabrication. In this project, thermal oxidation characteristics on the silicon wafer will be analyzed through experiments in the clean room. The research method was conducted in the thermal oxidation furnace in the TCU Cleanroom on nine wafers with different placement orientations in the furnace and three different oxidation temperatures: 950°C, 1000°C, and 1050°C. In addition, oxide thickness measurements between different locations on the wafer were taken to investigate the film uniformity. The data analysis showed three trends: 1. oxide thickness varies across the wafers, 2. oxide thickness varies as a function of the furnace location, and 3. oxide growth rate varies as a function of furnace temperature. This project investigates how these factors impact thermal oxidation, one of the most critical steps in microfabrication

Window Transmittance Project

Type: Undergraduate
Author(s): Lorenzo Martinez Engineering Devin Olmedo Engineering
Advisor(s): Sue Gong Engineering
Location: Basement, Table 14, Position 2, 1:45-3:45

The Digital Micro-Mirror Device (DMD), which was originally developed for digital projection using visible light source, has seen numerous applications in automotive, manufacturing, spectroscopy, and underwater imaging that require wavelength beyond visible. The DMD window is an important part of the packaging that protects the digital mirror array. Since the light goes through the top and bottom surfaces of the window glass twice during operation, the transmittance of the window is usually optimized for the range of wavelengths specified by the applications through optical coatings. In this research work, we will explore the effectiveness of the optical coatings for different types of glasses for window transmittance improvement in visible and near-infrared wavelengths. We will evaluate the transmittance of the existing DMD window glasses and explore ideas of improving transmittance in the NIR range without compromising the effectiveness in the visible light range. In doing so, we would be the light efficiency of the DMD in a wider wavelength range.

Interferometric Optical Phase Tomography of Intraocular Lenses

Type: Undergraduate
Author(s): Miles Masker Engineering
Advisor(s): Tristan Tayag Engineering
Location: First Floor, Table 3, Position 1, 1:45-3:45

This research focuses on developing an optical metrology system to characterize the 3D refractive index profile of intraocular Lenses (IOLs) and contact lenses. Recent innovations in IOLs and contact lenses have facilitated the creation of lenses with finely controlled refractive index gradients across their surfaces, and as a result, the demand for precise metrological techniques has increased. Optical Phase Computed Tomography (OPCT) holds as a possible method for precisely characterizing these gradients. OPCT operates on the principle of the parallel ray approximation, which assumes that the rays passing through a surface remain unaltered in angle and continue parallel. OPCT has proven effective in determining the refractive index of optical fiber, this success can be attributed to the minimal deviation from parallel ray assumption of the optical fiber. This study aims to ascertain the feasibility of using OPCT for the characterization of intraocular lenses (IOLs) and contact lenses. Our approach involves replicating, through simulation, the previously studied optical fiber to determine the maximum deviation angle from the parallel ray assumption. Utilizing simulated models of IOLs and contact lenses, we investigate the repercussions of deviations from the parallel ray assumption on OPCT precision. We aim to compare these findings to the established deviation observed in fiber optic studies. This comparative analysis will offer insights into the potential applicability of OPCT for IOLs and contact lenses, allowing for further development of enhanced optical metrology techniques.

Effectiveness and Efficiency of UV-C Lights at Killing Bacteria

Type: Undergraduate
Author(s): Taryn Mitchell Engineering Riley Briggs Engineering Nhu Le Engineering Jackson Ray Engineering Jackson Schriver Engineering
Advisor(s): Robert Bittle Engineering
Location: Basement, Table 4, Position 1, 1:45-3:45

Effectiveness and Efficiency of UV-C Lights at Killing Bacteria:

Bacteria lie on surfaces all around us, resulting in a desire to clean or disinfect them to avoid the adverse effects of bacteria. One popular method is UV-C light, which has a wavelength of 200-280 nanometers. This study aimed to determine the effectiveness of UV-C lights in killing bacteria. Tests were conducted using a power sensor and bacterial lawns to determine the impacts of different variables on the effectiveness of UV-C lights. Testing measures were taken to ensure that all data was collected independently and identically. It was found that height, surface placement under UV-C lights, electrical power to lights, and reflectivity had the most significant impact on the effectiveness of the light. When optimizing these variables, it was found that with three and two lights there was a substantial bacteria kill rate once the exposure exceeded 3 seconds. This study has proven that UV-C is an effective and efficient way to kill bacteria on surfaces.

Learning the Trade of Blacksmithing

Type: Undergraduate
Author(s): Brian Sullivan Engineering
Advisor(s): James Huffman Engineering
Location: Third Floor, Table 5, Position 1, 11:30-1:30

This project delved into the multifaceted world of blacksmithing, merging scientific inquiry with traditional craftsmanship to understand the nuances of metal work and material sciences. The primary objective was to immerse in the practicality of the craft, with the intent of learning the use of essential tools, the operational aspects of a forge, and further developing my knowledge of material properties of metals. In the aspect of material properties, a target was made to cultivate a comprehensive understanding of the manipulation of metal properties, utilizing heat treatment, cooling, and knowledge of metallurgical behavior.

Key milestones were set, including the acquisition of competencies in manipulating metal through heating, working, and cooling to craft rudimentary objects like hooks and nails, progressing towards more intricate creations such as knives and ornamental ironworks. The project's methodology was twofold: an investigative theoretical approach entailing the study of literature and visual resources to build a foundational knowledge base, and an empirical approach through active participation in local blacksmithing workshops.

The culmination of the project saw the successful completion of a functional coat rack and a knife forged from a railroad spike, reflecting both the learned techniques, material science, and personal creative expression. The analytical engagement with metals and forging methods paved the way for producing personalized, high-quality metalworks. The endeavor not only honed a distinctive skillset but also unveiled the potential for a post-graduate entrepreneurial venture specializing in custom-made tools and decorative arts, thereby intertwining the art of blacksmithing with contemporary business opportunities.

Ecosystem Services of TCU Campus Trees

Type: Undergraduate
Author(s): Megan Boneck Environmental Sciences Audrey Haffner Environmental Sciences Gisela Pacheco Environmental Sciences Zoey Suasnovar Environmental Sciences
Advisor(s): Bredan Lavy Environmental Sciences
Location: Basement, Table 12, Position 1, 11:30-1:30

Urban trees provide a variety of ecosystem services to an area that allows both humans and animals to thrive in their vicinity. The ecosystem services provided are able to be determined through specific aspects of a tree and their location in relation to buildings and ground cover. These ecosystem services include carbon sequestration, air quality improvement, avoided runoff, and energy effects. Texas Christian University (TCU) was designated a tree campus by the Arbor Day Foundation meaning they commit to making sure that they are planting and preserving the trees that are in their care. This study’s purpose was to determine the ecosystem services provided by the trees in TCU’s care, including the costs of each tree and the services that they provide. By surveying the diameter at breast height (DBH), total height, crown base height, species, crown health and exposure, canopy size, ground cover, and health we are able to determine what services are being provided by the TCU trees. Determining the services is possible through the service iTree Eco where the data was inputted allowing its use in the estimation of the services that the trees provide.

Water availability for winged residents: geospatial analysis of drinking water for bats in the Lower West Fort Trinity watershed of Fort Worth

Type: Undergraduate
Author(s): Katherine Davis Biology
Advisor(s): Esayas Gebremichael Environmental Sciences Victoria Bennett Environmental Sciences
Location: Basement, Table 7, Position 2, 1:45-3:45

Although bats are extremely important ecosystem service providers, they face challenges accessing suitable drinking resources in urban environments. The objective is to conduct a comprehensive geospatial analysis to assess water sources within Tarrant County. Factors such as tree cover, surface area, and proximity to roads will be evaluated and mapped to determine the suitability of these water sources for bats. The resulting data will contribute valuable insights into the spatial distribution of drinking resources for local bat populations, aiding in conservation efforts and habitat management in the region.

COASTAL EROSION: INTEGRATING GEOSPATIAL TECHNOLOGY TO AID IN THE MANAGEMENT OF EROSION DUE TO RISING SEA LEVELS ALONG US COASTLINES

Type: Undergraduate
Author(s): Tristan Knowlton Environmental Sciences Miki Nisbet Environmental Sciences
Advisor(s): Esayas Gebremichael Environmental Sciences
Location: Second Floor, Table 4, Position 1, 1:45-3:45

Along the coastlines of America, specifically along the Pacific Coast and the Gulf of Mexico, rising sea levels are causing great levels of coastal erosion, leading to the loss of coastal homes and ecologically valuable land. Climate change affects the rate at which sea levels rise, which in turn determines how quickly coastlines are eroded. The objective is to analyze coastal maps of California and the Gulf of Mexico to determine which coastal factors facilitate or hinder the degradation of coastlines.

Sustainability Progress of Global Companies Using GRI Standards

Type: Undergraduate
Author(s): Maria Pertz Environmental Sciences
Advisor(s): Brendan Lavy Environmental Sciences
Location: Third Floor, Table 5, Position 3, 11:30-1:30

In a recent survey by IBM, 51% of respondents from 10 major global economies stated that sustainability is more important to them today than it was 12 months ago (Emeritus, 2022). Historically, influential corporations have disregarded the triple bottom line and have ignored the effects their supply chains have on the environment, people, and the economy, and in turn, made negative contributions to sustainable development. To reduce and eventually eliminate the harm, many companies are now creating sustainability plans to monitor their progress. Sustainability planning and reporting have gained traction in the last decade given the push for standardization, the need for transparency from consumers, and improved environmental social governance metrics within their business operations. Today, there are over 600 different sustainability reporting standards, industry initiatives, frameworks, and guidelines that have improved the transparency, consistency, and interoperability of sustainable practices (Brightest, 2024). One of the most widely adopted frameworks is the Global Reporting Initiative (GRI). GRI created the first global sustainability and social impact measurement standards in 1997, and they help businesses and other organizations take responsibility for their impacts, by providing them with a global common language to communicate those impacts (Global Reporting Organization, n.d.).

The purpose of this research is to examine the contents of 10 sustainability reports across five industries and document their actions towards sustainable development. I will focus on how companies are not only reducing their environmental impacts but also protecting workers and contributing to society. Understanding the degree to which companies are addressing these challenges is crucial to measuring their progress and determining if they are advancing toward sustainability.

Product testing the next generation Song Meter Mini Bat acoustic detector for Wildlife Acoustics, Inc.

Type: Undergraduate
Author(s): Kaitlyn Roussel Environmental Sciences
Advisor(s): Tory Bennett Environmental Sciences
Location: First Floor, Table 1, Position 1, 11:30-1:30

Analyzing the calls a bat emits is one of the main ways to identify a species. We use bat acoustic detectors to filter these ultrasonic sounds produced. As technology advances, so do these detectors. Wildlife Acoustics Inc. produces bat acoustic detectors constantly. These detectors are then tested with older models to see if they produce the same results. We, therefore, conducted a study to test the next generation of bat acoustic detectors to the older models by Wildlife Acoustics Inc. We tested all three detectors at the same site, over the same period, and analyzed the results to see if the newest model was. This study took place in the flight room on Texas Christian University's campus between the dates of 03/01 - 03/08/2024, in Fort Worth Texas.

Austin's Walkability: Tree Canopy Cover of Downtown Austin's Sidewalks

Type: Undergraduate
Author(s): Zoey Suasnovar Environmental Sciences
Advisor(s): Esayas Gebremichael Geological Sciences Brendan Lavy Environmental Sciences
Location: Second Floor, Table 2, Position 2, 1:45-3:45

As the Capital of Texas, Austin has been a great exemplar in the protection and preservation of trees within their city limits. Austin has had a commitment to these trees for decades, but what do the trees do for the city of Austin? This poster focuses on the sidewalks of downtown Austin, and what percentage of them are covered by the canopy of these trees. Using Geographic Information Systems (GIS) we calculate the percentage of the canopy cover overlaying the sidewalks. Understanding the canopy cover allows us to also find the walkability score of downtown Austin. A tree's canopy provides shade, and when placed over a sidewalk, it provides an escape from the omnipresent heat in Austin in the Texas summers. People in areas of lower-socioeconomic status tend to have reduced trees (and greenspace in general) compared to those of a higher-socioeconomic status. By determining an area's walkability score, we can also find areas of desire where greenspaces and trees can benefit the people living there.

Can Passive Acoustic Monitoring Effectively Be Used To Inform The Species Diversity And Activity Patterns Of Bats In Big Bend National Park

Type: Undergraduate
Author(s): Justyn Wallace Environmental Sciences
Advisor(s): Victoria Bennett Environmental Sciences
Location: Second Floor, Table 8, Position 3, 11:30-1:30

Use of an artificial roost site by multiple bat species in Texas

Type: Undergraduate
Author(s): Abi Welch Environmental Sciences
Advisor(s): Victoria Bennett Environmental Sciences
Location: Third Floor, Table 8, Position 1, 1:45-3:45

The use of roost sites by multiple bat species is well-documented, especially in large structures where different species are partitioned by distinct microclimates within these structures; however, there is limited research on smaller roost sites, especially artificial ones, such as wooden bat houses. With such houses recommended to improve urban areas for bats or mitigation to replace natural roosts lost during construction projects, understanding species-specific roost use is imperative to ensure these conservation strategies are effective. To address this need, we compared the temporal and spatial use of an artificial roost site by bats in a residential neighborhood in Fort Worth, Texas. Since 2017, we have monitored species presence, including the evening bat (Nycticeius humeralis) known to roost in natural roost sites such as the tree hollows, broken branches, peeling bark, and under thick-stemmed ivy, and the Mexican free-tailed bat (Tadarida brasiliensis), which tends to roost in caves. In addition, we monitored this roost site almost weekly for a year from 2023-2024 to determine how seasonal use in the abundance of these species varied. More specifically, we addressed whether these species displayed year-round communal roosting or species-specific roost partitioning, as well as species-specific seasonal roost use. Along with providing insights into artificial roost use by bats, this study represents the first to demonstrate multispecies use of a roost site, natural or artificial, by evening and Mexican free-tailed bats. The findings have implications for understanding interspecies competition and artificial roost use and therefore contribute to bat conservation.

Using Spatial Analysis to Identify Patterns in Reptilian Dermal Ornamentation

Type: Undergraduate
Author(s): Sarah Foxx Geological Sciences
Advisor(s): Esayas Gebremichael Geological Sciences Arthur Busbey Geological Sciences
Location: First Floor, Table 5, Position 1, 11:30-1:30

The dermal ornamentation of reptiles and lower vertebrates is a largely untouched field of research, and thus common patterns or a specific purpose for the ornamentation has yet to be identified and/or agreed upon by paleontologists. This study strives to use various spatial and image analysis techniques to identify any patterns in the ornamentation on the skulls of both ‘lower’ vertebrate captorhinids and modern crocodilians to better understand the purpose of such ornamentation and why it has persisted from lower vertebrates to modern-day reptiles. Any information that can be derived from the research may aid modern understanding of the evolution from lower vertebrates to modern reptiles.

Flood Risk Analysis of Anchorage Alaska

Type: Undergraduate
Author(s): Matthew Froehlich Environmental Sciences Andrew Campola Environmental Sciences
Advisor(s): Esayas Gebremichael Geological Sciences
Location: Third Floor, Table 3, Position 2, 11:30-1:30

Alaska is situated along the Pacific Ring of Fire, a region notorious for tectonic activity, including earthquakes and tsunamis. This, along with significant tidal fluctuations, and an increasing sea level pose a unique threat along Alaska's coastlines. Our objective is to create a map displaying potential risks and levels of risks in the city of Anchorage. In addition, we plan to analysis the potential economic costs of differing levels of flooding.

Heat Severity Influence on Median Household Income Across Fort Worth, TX

Type: Undergraduate
Author(s): Audrey Haffner Environmental Sciences Blake Harrison Environmental Sciences
Advisor(s): Esayas Gebremichael Geological Sciences Brendan Lavy Environmental Sciences
Location: Basement, Table 13, Position 2, 11:30-1:30

This research identifies the relationship between heat severity and median household income across Fort Worth, Texas. As global temperatures continue to rise the urban heat island (UHI) effect becomes more severe, especially in low-income communities due to disparity to past discriminatory housing policies. This study utilizes the ArcGIS Pro software to create a series of maps using census data to acquire the objectives of this study.

GIS in Precision Agriculture

Type: Undergraduate
Author(s): Will Hayes Geological Sciences James Hufham Environmental Sciences
Advisor(s): Esayas Gebremichael Geological Sciences Jason Faubion Ranch Management
Location: Second Floor, Table 4, Position 3, 1:45-3:45

Today’s farmers must grasp a wide range of topics beyond just planting, including soil composition, weed management, nutrient requirements, weather patterns, pest control, disease prevention, equipment use, and climate considerations. Precision agriculture, a tool that allows for the visualization of data in an agricultural view to help ranchers better understand their land and how to best supply resources to their land, can be a tool to increase efficiency and production to the agricultural industry as a whole. Precision agriculture can help farmers “more precisely determine what inputs to put exactly where and with what quantities.”(GIS lounge para. 3). In this proposal we plan to demonstrate how precision agriculture with the use of Landsat satellites analyzes the greenness of vegetation using indices like the Normalized Difference Vegetation Index (NDVI). Using these tools we can use drones to collect plant height and plant count, biomass estimates, the presence of diseases and weeds, plant health and field nutrients, as well as 3D elevation and volumetric data.

Proximity to Major Water Sources and its Effect on Population Density in Texas

Type: Undergraduate
Author(s): Wilson Kelsey Environmental Sciences Nicole Kiczek Environmental Sciences
Advisor(s): Esayas Gebremichael Geological Sciences
Location: First Floor, Table 6, Position 1, 11:30-1:30

Surface water plays a critical role in meeting Texas’s water demands, particularly for municipal use. In the State of Texas, there are 188 major water reservoirs, 15 major river basins, and 8 coastal basins. These water sources serve as the lifeline of Texas’ urban and agricultural populations. In our study, we will be examining how proximity to these sources affects development, particularly focusing on population density to determine the type of population (urban or agricultural). Our findings have the potential to provide insights that can inform city water departments near major water resources with high population density and aid with water demand and scarcity management.

Trends in Energy Consumption and Production by Source with Population Growth

Type: Undergraduate
Author(s): Kenna Mollendor Environmental Sciences
Advisor(s): Esayas Gebremichael Geological Sciences
Location: Third Floor, Table 2, Position 2, 11:30-1:30

This study investigates the intricate relationship between population growth and energy demand, aiming to identify trends and patterns that inform future energy planning. Through comprehensive analysis, utilizing data spanning geographical regions of the US and the period 2000-2021, the study assesses the impact of population growth on energy consumption. Data from the US Energy Information Administration will be utilized for electricity and energy data, while data from the US Census will be used for population data. The analysis will focus on examining how population changes affect energy demand, and conversely, how changes in energy demand influence the sources from which energy is produced. This analysis aims to provide insights into predicting future energy usage, production sources, and demand patterns as the population continues to grow. The findings underscore the pressing need for sustainable energy solutions as the population continues to increase, providing valuable insights for policymakers and stakeholders to navigate the complexities of energy planning and management.

How molecules in soil composition can determine climate resilience

Type: Undergraduate
Author(s): Isabella Moreno Environmental Sciences Tabby Pyle Geological Sciences
Advisor(s): Omar Harvey Geological Sciences
Location: Second Floor, Table 7, Position 2, 1:45-3:45

Global climate change, due to increases in greenhouse gas emissions, is a prevailing issue that is projected to continue with heightened impacts on extreme weather events, desertification, and human health. Our project draws connections between resilience to climate change and the molecular composition of organic molecules found in soil.

Through assessments of the carbon (C), hydrogen (H), and oxygen (O) content and composition of organic molecules in soils can be determined. Specifically, through assessments of C-number (Cn), H/C and O/C ratios of organic molecules, we can determine how well different soils and soil types can sequester carbon and ultimately support climate resiliency. Higher Cn in organic molecules indicate more carbon storage capacity while lower O/C and H/C ratios in organic molecules indicate more stable carbon that is resistant to release as CO2 to the atmosphere. Our research will compare Cn, O/C and H/C data of organic molecules in soils from across the United States to identify possible trends in carbon sequestration potential across regions of the conterminous US.

The data to be used is raw Fourier-transform ion cyclotron resonance mass spectrometry (FTICR-MS) data from the “One thousand soils for molecular understanding of belowground carbon cycling” project (Bowman et al.). We first plotted the soil samples on Van Krevelen diagrams, which visualize each molecule as a point with O.C and H.C ratios, and we made frequency distributions to understand the largest organic molecular formula for each sample. We then plotted the maximum organic formula from each soil onto a new Van Krevelen diagram, where we compared the different samples to see which ones had higher overall carbon content. We hope to find a connection between soil composition and U.S. regions from which we will then make predictions on potential for carbon sequestration and, ultimately, the ability of these regions to remain resilient and sequester carbon during climate change.

Microscopic Studies of Ancient, Potentially Rift-Related Plutonic Igneous Rocks in Colorado

Type: Undergraduate
Author(s): Isabella Nino Geological Sciences Richard Hanson Geological Sciences
Advisor(s): Richard Hanson Geological Sciences
Location: Basement, Table 2, Position 3, 11:30-1:30

The regional geological framework of the area I am studying involves a possible major northwest-trending Cambrian to Ordovician rift zone with abundant igneous rocks in parts of Colorado. These igneous rocks may be related to large volumes of Cambrian igneous rocks located along the same trend in southern Oklahoma. My project focuses on plutonic igneous intrusions located in the Wet Mountains in the southern part of the Front Range and in the Powderhorn District farther west. The goal of this project is to discover whether the rocks in Colorado formed during the same major magmatic event as those in Oklahoma. I will be studying thin sections of rock samples from Colorado utilizing a petrographic microscope. I will describe and identify the main igneous minerals from the samples, some of which are rare. I will also study the igneous textures and alteration products in the samples. Geochemical studies in progress will build on these results and will allow detailed comparison with the southern Oklahoma igneous rocks.

Microscopic Studies of Ancient Igneous Dikes in the Front Range of Colorado

Type: Undergraduate
Author(s): Caleb Perkey Geological Sciences Richard Hanson Geological Sciences
Advisor(s): Richard Hanson Geological Sciences
Location: Second Floor, Table 9, Position 2, 11:30-1:30

A major Cambrian rift zone containing abundant igneous rocks is present in southern Oklahoma and trends northwest from the ancient continental margin. Previous geologists have mapped numerous igneous intrusions in Colorado that follow the same trend, ranging from Cambrian to Ordovician in age, and have speculated that these intrusions may be a part of the same rift. These intrusions include abundant igneous dikes of various compositions that originated from deeper magmatic bodies, filling fracture systems in older igneous rocks and Precambrian gneisses. This study involves the microscopic analysis of samples we collected from different dike types, including diabase, trachyte, and lamprophyre. Diabase is a common intrusive basaltic rock that develops coarser grains due to slower cooling and represents partial melt from the mantle that fills fractures in the upper crust. For our samples, trachyte refers to igneous dikes containing large crystals of K-feldspar within a distinctive red-colored, fine-grained matrix. Magmas of this composition are typically associated with intraplate rift zones. Lamprophyre is a rare intrusive igneous rock that has large crystals of biotite and amphibole in a finer matrix of feldspar and mafic minerals. While rare, this rock is also associated with intraplate rift zones. We also sampled one significantly younger basalt dike that intrudes Cenozoic volcanic rock to compare with the much older diabase dike samples.
Nine of our samples come from the Wet Mountains in the southern part of the Front Range in Colorado, and we also have an additional five samples of diabase dikes along the Front Range ~100 km to the north. Analysis of thin sections of these samples under the petrographic microscope will provide insight into their exact mineralogical compositions as well as their igneous textures. This work will provide a framework for geochemical analyses of the dikes, which is currently underway. The results will help determine whether the Colorado intrusions are directly related to the southern Oklahoma rift.

Potential Switchgrass Implementation Locations on Saskatchewan Agricultural Farms for Biofuel Production

Type: Undergraduate
Author(s): Emma Solomon Environmental Sciences Daphne Varmah Geological Sciences
Advisor(s): Esayas Gebremichael Geological Sciences
Location: Second Floor, Table 8, Position 2, 11:30-1:30

Switchgrass generates cellulosic ethanol, classified as an alternative fuel by federal definition. For switchgrass and other vegetation to become biofuel we have to look specifically at the cellulose microfibril and extract the glucose. This extraction leads to the fuel being produced. Switchgrass can deposit organic matter deep within the soil profile as the roots expand into the subsoil for nutrients and water. Not only is switchgrass a good biofuel product, but the carbon sequestration that comes along with planting this grass is highly beneficial. Due to the roots reaching deep into the soil, switchgrass is low maintenance while adding nutrients.
In this project, we will be researching possible farms in Saskatchewan, Canada preferably in close proximity to ethanol biorefinery plants for maximum switchgrass plantation, in order to seek possible expansion of biofuel production in Saskatchewan. We will be looking at farms, proximity of farms to biorefineries, and soil make up.