Geological and Mining Engineering and Science News

Category: Students

Ian Gannon MS in Geological Engineering Final Defense

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On August 3, 2023, Ian Gannon successfully defended his geological engineering research for his MS degree.

Advised by James DeGraff, with Chad Deering and Aleksey Smirnov as committee members.

Title: Integrating LiDAR, Aeromagnetic, and Geological Field Data to Identify Structural-Lithologic Elements Within the Archean Carney Lake Gneiss Complex
Abstract: The Archean Carney Lake Gneiss Complex (CLGC) is a suite of rocks on the southern margin of the Superior Province and within the Minnesota River Valley subprovince. It is one of many gneissic domes in Michigan, Wisconsin, and Minnesota whose complex geology is poorly understood due to a previous lack of economic interest in gneissic terranes and significant challenges to their investigation. As a consequence, the CLGC and other gneissic domes in the region are represented on geologic maps as undifferentiated masses surrounded by better-defined and understood Paleoproterozoic supracrustal rocks and igneous intrusions. Within the last ten years, however, the United States has identified an urgent need to find new sources of critical minerals to sustain and grow the nation’s technology and defense industries, which has renewed interest in these very old and complex rocks. Under the Earth Mapping Resources Initiative (Earth MRI) of the U.S. Geological Survey, the CLGC and surrounding Paleoproterozoic rocks have been remapped to update geologic interpretations and to assist in identifying potential mineral systems in the region. Mapping of the CLGC was accomplished using traditional techniques combined with satellite-based phone applications and differential GPS devices to navigate in dense vegetative cover, to obtain accurate coordinates of field sites, and to collect geologic data at outcrops. As a further aid to ground mapping, high-resolution LiDAR and aeromagnetic data were analyzed to determine topographic and magnetic patterns and textures that potentially reflect structural-lithologic domains within the CLGC.

Integration of the new geologic field data with features and patterns identified on LiDAR and aeromagnetic maps allows definition of three domains within the CLGC: (1) a poly-deformed, mostly felsic gneiss with folded and sheared banding; (2) a meta-igneous, plagioclase-dominated gneiss with poorly expressed banding; and (3) a meta-sedimentary gneiss with thin well-developed banding and local relict sedimentary textures. Outcrop mapping also reveals the widespread occurrence and great variety of younger felsic and mafic intrusions that were not fully appreciated by earlier mappers. Data integration has allowed better definition of geologic unit contacts around the margins of the CLGC and within some Paleoproterozoic metasedimentary units, which updates knowledge about the Sturgeon Quartzite to the northeast and the Vulcan Iron Formation to the south. Although some analytical work is ongoing, such as radiometric age dating, the integrated mapping effort has identified between five to eight tectonomagmatic events that have affected the region, plus a number of sedimentary cycles. The abundance of processes that have affected the area provides multiple opportunities for concentration of mineral deposits that could be attractive for future exploration efforts. The data integration approach developed for this thesis project should be useful in identifying structural-lithologic domains within enigmatic Precambrian gneiss domes elsewhere in the region and globally.

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Jordan Ewing Computational Science and Engineering Ph.D. Defense

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On Friday, July 21, Jordan Ewing successfully defended the research for his doctoral degree in computational science and engineering.

Advised by Thomas Oommen, with Laura Brown, Stanley Vitton, and Paramsothy Jayakumar as committee members.

Title: Remote Sensing Approach for Terramechanics Applications Utilizing Machine and Deep Learning

Abstract: Terrain traversability is critical for developing Go/No Go maps, significantly impacting a mission’s success. To predict the mobility of a vehicle over a terrain, one must understand the soil characteristics. In situ measurements performed by soldiers in the field are the current method of collecting this information, which is time-consuming, are only point measurements, and can put soldiers in harm’s way. Therefore, this study investigates using remote sensing as an alternative approach to characterize terrain properties.

This approach will explore the relationships between electromagnetic radiation and soil types with varying properties. Optical, thermal, and hyperspectral sensors will be used to collect remote data and compare it against ground truth measurements for validation. Machine learning (linear, ridge, lasso, partial least squares, support vector machines, and k nearest neighbors) and deep learning (multi-layer perceptron and convolutional neural network) algorithms will be used to build prediction models.

Results showed that soil properties such as soil gradation, moisture content, and soil strength measured by a geogauge and averaged cone penetrometer for 0–6” and 0–12” (CP06 and CP12) can be estimated remotely. Deep learning provides the best models for estimating terrain characteristics compared to machine learning. It is shown that this method can produce much finer spatial resolution coverage than traditional geospatial point-based interpolation approaches and yield a higher prediction accuracy. Predictions maps can be used to generate threshold-based Go / No Go maps using a vehicle cone index or as a cost map for vehicle performance. A Polaris MRZR vehicle was used to test the application of these prediction maps for mobility purposes, and correlations were observed between the CP06 and rear wheel slip and CP12 and vehicle speed.

This study demonstrates the potential of using remote sensing data for more rapid and finer spatial resolution predictions of terrain properties with higher accuracies compared to traditional in situ mapping methods implementing machine and deep learning algorithms. The remote sensing approach allows the generation of Go/No Go and vehicle cost maps and, most importantly, provides a safe alternative to keep soldiers out of harm’s way.

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Beth Bartel Geology Ph.D. Defense

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On Friday, July 7, 2023, Beth Bartel achieved resounding success as she skillfully defended her research for her doctoral degree in geology.


Co-Advised by Greg Waite and Rüdiger Escobar Wolf, with Angie Carter, Kari Henquinet, and Luke Bowman as committee members.

Title: Information Use and Decision-Making for Evacuation at Fuego Volcano, Guatemala Information Use and Decision-Making for Evacuation at Fuego Volcano, Guatemala

Abstract: Active volcanoes are complex, multi-hazard systems. Early warning systems (EWS) may enable populations to live sustainably with volcanic hazards, but developing an effective EWS is far from straightforward, as is measuring its efficacy. At Fuego volcano, Guatemala, pyroclastic density currents (PDCs)—fast-moving flows and surges of hot volcanic gas, ash, and rock–killed more than 400 people during a paroxysmal eruption in June 2018 and continue to threaten the ~60,000 people living within the identified hazard zones. In this dissertation, I use mixed ethnographic methods to investigate evacuations at Fuego during and since the tragedia through three projects. I first investigate information availability and its use in decision-making on 3 June 2018. Next, I examine current practices for evacuation decision-making four and five years after the disaster, focusing on a partial evacuation on 7–8 March 2022. Finally, I use that same event to study how cultural gender expectations impact evacuation strategies and how women’s experiences in evacuation can inform future risk reduction strategies. With this dissertation, I aim to contribute a better understanding of the complex factors challenging the efficacy of EWS in order to improve existing approaches in and beyond Guatemala. In this way, this work aims to serve the population around Fuego volcano and others like it in various cultural, geographic, and economic settings.

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Caleb Kaminski MS in Geophysics Final Defense

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On April 21, 2023, Caleb Kaminski demonstrated resounding success in defending his research for his Geophysics Master of Science degree.

Advised by Aleksey Smirnov, with Paul van Susante and Jeremy Shannon as committee members.

Title: Exploring Ground-Penetrating Radar Responses to Basaltic Terrain for Upcoming Lunar Expeditions

Abstract: In preparation for upcoming lunar expeditions, a comprehensive understanding of the Moon’s geophysical properties is imperative, particularly in the context of resource identification and extraction. This study focuses on the experimental characterization of electromagnetic (EM) behavior in the radio spectrum for ground-penetrating radar applications, utilizing basaltic Keweenawan stamp sand and highland lunar simulant soil test materials with varying particle grades. Under controlled laboratory conditions, we systematically analyzed and compared the differences in EM wave velocity and signal amplitude as a function of particle size and mineralogy, as represented in radargrams. Our findings demonstrate that the highland lunar simulant exhibits a significantly higher EM reflection coefficient than the stamp sand, which can be attributed to its lower conductivity arising from compositional differences. These results hold important implications for the development of remote sensing techniques and optimization of ground-penetrating radar systems for future lunar missions, ultimately enabling the efficient detection and extraction of valuable resources such as water ice on the lunar surface.

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Nolan Gamet MS in Geology Final Defense

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On June 22, 2023, Nolan Gamet achieved success in defending his research for his Master of Science in Geology.

Title: Structural Analysis and Interpretation of the Deformation Along the Keweenaw Fault System from Lake Linden to Mohawk, Michigan

Abstract: The Keweenaw fault is likely the most significant fault associated with the Midcontinent Rift System, with an estimated reverse slip of ~10 km that places Portage Lake Volcanics (~1.1 Ga) over much younger Jacobsville Sandstone (~1.0 Ga). Published bedrock geology maps with cross sections from the 1950s show the fault as a single continuous trace that is locally associated with smaller cross faults and splays. This M.S. thesis presents a structural analysis and interpretation of the Keweenaw fault system between Lake Linden and Mohawk, MI, which includes data collected from well-known localities such as Houghton-Douglass Falls, the St. Louis ravine, the Natural Wall ravine, and the anomalous rhyolite body near Copper City. These data were used to revise existing bedrock geology maps, construct new cross-sections, and analyze fold geometry and fault slip behavior to infer aspects of the tectonic regime that caused the deformation.

New field mapping has refined the trace geometry of the Keweenaw fault (KF) and smaller associated faults by shifting the main fault’s position laterally as much as 150m, revising intersections between several splay faults and the main fault, and suggesting the existence of several footwall splays not previously recognized. Orientation analysis of Jacobsville Sandstone strata in the footwall of the fault system defines fold axes with plunge directions changing from southwest in the south to northeast in the north. The style of folding also changes along the fault from broad syncline-anticline pairs in the southwest to tightly folded anticlines with overturned bedding to the northeast. Fault-slip analyses reveal a bimodal distribution strike-slip and reverse slip along the fault system that collectively define a 1:1 ratio and a nearly north-south maximum tectonic shortening direction of 2°–182°. The NS-trending shortening direction computed from fault-slip analysis creates a paradox yet to be explained. However, fold axis trends in the current area indicate shortening along an ESE-trending line, which is consistent with recent results for the fault system northeast of this study area and with Grenville orogenic compression being the primary cause of slip along the Keweenaw fault system.

Advised by James DeGraff, with Chad Deering, William Rose, and Jeremy Shannon as committee members.

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Paola Rivera-González MS in Geology Final Defense

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On April 5, 2023, Paola Rivera-González successfully defended her Geology Master of Science degree.

Title: Climate Changes in El Salvador: Impacts of ‘La Canícula’ (“Dog Days of Summer”) on Agricultural Practices and Decision-Making in Rural Communities

Abstract: The Central American Dry Corridor (CADC), a tropical dry forest region, is characterized by distinct rainy and dry seasons that influence the local agricultural calendar and decision-making in rural communities. ‘La canícula’ is a period of decreased precipitation during the rainy season, which typically occurs in July during the corn growing season in El Salvador. The ‘canícula’ is expected to change in intensity and duration in the next decades, which would impact small-scale farmers and their livelihoods. Climate variability and uncertainty has led to crop loss, water scarcity, and food insecurity in rural communities dependent on subsistence farming. Farmers’ experiences with a changing climate led to reformed decision-making and agricultural processes (eg. agricultural calendar, seed type usage, crop rotation) to optimize their harvest and adapt to a variable climate. Studying the local perceptions and adaptation practices of farmers showed how natural hazards related to global climate change impact society, community dynamics in how farmers identify their main challenges, and revealed the ways farmers improve resilience to a changing climate.

Advised by Luke Bowman with committee members Kari Henquinet, John Gierke

Paola Laguna Algeria
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Natalea Cohen MS in Geology Final Defense

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On Wednesday, June 14, 2023, Nat Cohen triumphed as she confidently defended her Geology Master of Science degree.

Nat Cohen on Mont Ripley

Title: Rain-induced hazards in remote, low-resource communities: A case study of flash flooding in the Usulután Department, El Salvador

Abstract: Natural hazards like flash floods can cause devastating impacts, so it is important to better understand these events to improve mitigation and emergency preparedness of vulnerable communities. California, El Salvador is a data-poor agricultural community experiencing climate change impacts and associated hazards, including flash flood events. This study uses ArcGIS Pro to map regional flash flood susceptibility and applies the Water Evaluation and Planning system (WEAP) to model sub-daily flash flood events in a California drainage well-known for flash flooding. Natural hazards like flash floods can cause devastating impacts, so it is important to better understand these events to improve mitigation and emergency preparedness of vulnerable communities. California, El Salvador is a data-poor agricultural community experiencing climate change impacts and associated hazards, including flash flood events. This study uses ArcGIS Pro to map regional flash flood susceptibility and applies the Water Evaluation and Planning system (WEAP) to model sub-daily flash flood events in a California drainage well-known for flash flooding.

Co-Advised by Luke Bowman and John Gierke, with Greg Waite as a committee member.

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GMES Researchers on Infrasound Detection of Approaching Lahars

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The National Science Foundation mentioned Michigan Tech in a story about a study showing that infrasound remote sensing technology is an effective way to monitor catastrophic volcanic mudflows. Rudiger Escobar Wolf and Greg Waite (GMES) and Ph.D. student Gustavo Bejar Lopez (geology) are co-authors of the study, which was published in Nature Scientific Reports. NSF’s story was picked up by EIN Presswire.

The study is a collaborative effort by scientists at Boise State University, the Instituto Nacional de Sismología, Vulcanología, Meteorología e Hidrología in Guatemala, and Michigan Technological University, and is funded by the U.S. National Science Foundation.

Johnson, J.B., Roca, A., Pineda, A. et al. Infrasound detection of approaching lahars. Sci Rep 13, 6476 (2023). https://doi.org/10.1038/s41598-023-32109-2

Sets of waveforms over time with graphs of lag times and location precision. Descriptions are in the caption and full article.
Cross correlation analysis from station IO is used to detect sound originating from the Ceniza drainage. Read the full caption online. Scientific Reports articles are published OA under a CC BY license (Creative Commons Attribution 4.0 International license). Read the full article.
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A Note from the Chair

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Early spring rock hunting at McLain State Park

Dear Alumni and Friends,

Aleksey Smirnov, Professor and Chair

Warm greetings from the Department of Geological and Mining Engineering and Sciences at Michigan Tech!

I hope this newsletter finds you in good health and high spirits. The long winter in the Keweenaw has finally given way to the vibrant colors of spring. As the seasons change and spring breathes new life into Copper County, I am delighted to reconnect with all of you and share some latest updates from our department.

As always, our priority remains to provide the highest quality education and learning experiences to our students, ensuring their future success. Recently, we heartfeltly congratulated our Spring and Summer 2023 graduates on this significant milestone. We are immensely proud of their achievements and wish them the very best in their future endeavors.

Our students continue to engage in active research, exploring new frontiers and making valuable contributions to their respective areas of study. I was particularly impressed by the work of Natalie Sorensen, a talented freshman majoring in geological engineering who has shown great promise in the field of hydrological research. Her dedication and enthusiasm are truly inspiring. Another noteworthy mention goes to Addison Goecker, a senior in applied geophysics whose poster presentation at the AIPG meeting received well-deserved recognition. It’s remarkable to see the caliber of research being conducted by our students.

One of the hallmarks of our department is the research mentorship provided by our faculty to our students. This commitment to guiding and nurturing their research endeavors was recently showcased at the Institute for Lake Superior Geology (ILSG) meeting in Eau Claire, Wisconsin, attended by a group of faculty and students. Not only did they present their research findings, but they also had the invaluable opportunity to network with esteemed professionals in the field. This experience further solidifies our department’s dedication to providing our students with exceptional research opportunities and preparing them for successful futures in their chosen disciplines.

Our faculty and staff have been successful, too! In particular, I am thrilled to announce that Radwin Askari, associate professor of geophysics, has been honored with a prestigious NSF CAREER award in recognition of his innovative ideas for understanding the dynamics of a volcano’s magmatic cracks. This research can improve the forecast of volcanic eruptions and help to mitigate their attendant hazards.

The expertise of our researchers is highly sought around the globe. Notably, our experts in water resource management, Dr. John Gierke and Dr. Luke Bowman were solicited by AmeriCorps to share their knowledge in building rainwater collection systems in rural communities of Colombia.

Teaching excellence has been a cornerstone of our department, and we take pride in the accomplishments of our faculty members on this front. Chad Deering and Luke Bowman, in particular, have been recognized for their exceptional teaching abilities. Chad’s dedication and passion have earned him a nomination for the Michigan Tech Distinguished Teaching Award  while Luke’s teaching prowess has been acknowledged in the Dean’s Teaching Showcase.

The support of our donors is instrumental to our success. Your generosity plays a crucial role in providing exceptional opportunities for our students and enhancing the quality of education we offer. We are always striving to provide the best opportunities for our students. The next few years promise even further expansion. However, we still have big needs in the areas of laboratory improvements and student scholarships. We would greatly appreciate any assistance in making these enhancements.

In particular, we have a pressing need to upgrade our Mining Engineering computer lab, and also to fund additional scholarships for geology and applied geophysics students.

As I reflect on our shared journey, the importance of our alumni community is clear: You are an invaluable part of our department’s history and success. We were happy to see quite a few of alumni and friends at Michigan Tech’s GMES social event, held at the recent 2023 Annual SME Conference and Expo in Denver. We intend to have more such events at other professional meetings.

Meanwhile, if you ever find yourself in our neck of the woods, I sincerely hope you’ll consider stopping by to say hello and share your stories. Your experiences and achievements are a great inspiration to our students and faculty alike.

Wishing you all the best in your endeavors, and may our paths cross again soon.

With warmest regards,

Aleksey Smirnov
Professor and Chair
Department of Geological and Mining Engineering and Sciences

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GMES People Attend the Annual Meeting of ILSG in 2023

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Eau Claire picture of the waterfront and city buildings.
Eau Claire, Wisconsin, by Itrytohelp32. This file is licensed under the Creative Commons Attribution-Share Alike 4.0 International license.

Michigan Tech was well represented at the 69th annual meeting for the Institute on Lake Superior Geology (ILSG), held in Eau Claire, Wisconsin, from April 23-26.

Research Professor Jim DeGraff and Professor Emeritus Bill Rose (GMES) presented a poster titled “Digital Image Capture and Database Compilation of Historical Mining Data from the Keweenaw Copper District, Michigan: A Progress Update.”

Graduate student Katherine Langfield (geology) delivered an oral presentation titled “Slip Kinematics of the Keweenaw and Hancock Faults within the Midcontinent Rift System, Upper Peninsula of Michigan.”

Graduate student Daniel Lizzadro-McPherson (geology) delivered an oral presentation titled “Structural Analysis and Slip Kinematics of the Keweenaw Fault System between Béte Grise Bay and Gratiot Lake, Keweenaw County, Michigan.”

Rose also delivered an oral presentation titled “New Work Developing Geoheritage Awareness.”

Geosciences Research Scientist Erika Vye (GLRC/GMES) delivered an oral presentation titled “Geoheritage as an Educational Tool to Explore Relationships with Land and Water in the Keweenaw.”

Professor Emeritus Ted Bornhorst (GMES) presented Peter Hollings, professor at Lakehead University in Thunder Bay, Ontario, with the prestigious ILSG Goldich Medal recognizing outstanding contributions to the understanding of Lake Superior geology. He also attended the ILSG Board of Directors meeting; the board approved the 70th annual meeting to be held in Houghton in 2024, which will be chaired by Bornhorst.

The ILSG is a nonprofit professional society that provides a forum for promoting better understanding of the geology of the Lake Superior region. The major activity of the institute is an annual meeting with geological field trips and technical presentations.

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