Earth Sciences Commons^™

Mgrre_Geolog_Collections Osborne, Nancy, Et Al 1-22 21101302060000, Mgrre Western Michigan University

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Mgrre_Geolog_Collections Wells, Herschel J 1-17 21165307500000, Mgrre Western Michigan University

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Mgrre_Geolog_Collections Baker, Rosemary & Keenan, Terence 1-31 21111311460000, Mgrre Western Michigan University

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Mgrre_Geolog_Collections Hockemeyer, Frederick 1-31 21111323230000, Mgrre Western Michigan University

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Mgrre_Geolog_Collections Richmond, John W Jr Et Ux 1-23 21107314190000, Mgrre Western Michigan University

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Mgrre_Geolog_Collections Tope & Stover 3-22 21111395140000, Mgrre Western Michigan University

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Mgrre_Geolog_Collections Anderson, Robert C Et Al 1 21133283560000, Mgrre Western Michigan University

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Mgrre_Geolog_Collections Adair, Donald L 1-36 21101299010000, Mgrre Western Michigan University

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Mgrre_Geolog_Collections Turner, Dale 1-27 21129314230000, Mgrre Western Michigan University

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Mgrre_Geolog_Collections Fruit Haven Nursery Inc 1-12 21101318170000, Mgrre Western Michigan University

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Mgrre_Geolog_Collections Robarts, Tryphena M 1 21147289980000, Mgrre Western Michigan University

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Mgrre_Geolog_Collections Jansma-Gordon-Altschul 1-26 21101307680000, Mgrre Western Michigan University

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Mgrre_Geolog_Collections Coder, Russell 1-10 21105300220000, Mgrre Western Michigan University

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Mgrre_Geolog_Collections State Dover 1-27 21137311650000, Mgrre Western Michigan University

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Mgrre_Geolog_Collections Krol, Wanda Et Al 1-12 21137309090000, Mgrre Western Michigan University

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Mgrre_Geolog_Collections Allmand, Thomas & Johnson, Will Unit 1-24 21137300040000, Mgrre Western Michigan University

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Mgrre_Geolog_Collections Hanson, Anna Et Al 1-28 21133314310000, Mgrre Western Michigan University

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Mgrre_Geolog_Collections State Allis 2-35 21141483120000, Mgrre Western Michigan University

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Mgrre_Geolog_Collections State Chester 2-22 21137297500000, Mgrre Western Michigan University

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Mgrre_Geolog_Collections Song Of The Morning Ranch 1-19 21137286560000, Mgrre Western Michigan University

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Mgrre_Geolog_Collections Koronka, A 1-4 21137307730000, Mgrre Western Michigan University

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Mgrre_Geolog_Collections Sobota, Thomas P & Rose M 1-25 21101318990000, Mgrre Western Michigan University

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Geological And Environmental Sciences - 2025, Dept. Of Geological And Environmental Sciences

Geological and Environmental Sciences News

• Greetings from the Department Chair
• Faculty Updates
• 2025 Geological and Environmental Sciences Department Alumni Achievement Awardee Mr. Thomas Hanna
• 60 Years - Telling Our Story
• Empowering the next generation of geoscientists

Drone-Based Airborne Vlf-Em In Detecting Groundwater Contamination Due To Landfill Leachate, Chanho Park, Mine Dogan

Waldo Library Student Exhibits

Modern landfills follow a strict state and federal regulation on their location, design, operation and monitoring practices. One of the key focus in the regulations is in terms of leachate. While the exact composition of the leachates depends on various factors such as waste composition and degradation processes, in general they contain groups of dissolved organic matter, inorganic cations and heavy metals.

Very Low Frequency-Electromagnetic (VLF-EM) has been widely used for delineating leachate plume direction and boundaries. Previous studies using VLF-EM were carried out as on-ground measurements due to limitations in technologies. With the advancements in Unmanned Airborne Systems (UAS), …

Environmental Fate And Transport Of Pfas In Wastewater Treatment Plant Effluent Discharged To Rapid Infiltration Basins, Kai M. Trobisch

Masters Theses

Fate and transport of per- and polyfluoroalkyl substances (PFAS) in wastewater treatment plant (WWTP) effluent discharged to rapid infiltration basins (RIBs) is investigated using data from 26 WWTPs in Michigan and numerical modeling to assess the role of air-water interface (AWI) sorption in modulating mass fluxes to the saturated zone. Analysis of RIB physical properties yields a median separation distance of 6.5 meters between land surface and the water table, and a continuum of area-normalized effluent fluxes ranging from 0.01 to 0.62 meters per day. A subset of WWTPs with RIBs indicate higher PFAS concentrations in groundwater than effluent with …

A Petrological Characterization Of The Iutzi Member Of Lucas Formation, Michigan Basin, Moira Burns

Honors Theses

It is thought that most Phanerozoic dolomites form via the replacement of precursor calcium carbonate [CaCO₃] with dolomite [CaMg(CO₃)₂] through a dissolution-precipitation reaction with a Mg-bearing fluid. Although this may be widely accepted, the timing, conditions, settings, and mechanisms associated with the dolomitization process are still strongly debated, resulting in the proposal of various dolomitization models. The association between evaporite minerals and dolomite in the rock record is common and has led many to propose a model genetically associating evaporative fluids and dolomitization. The evaporative model posits as marine fluids evaporate and become more …

Geological And Environmental Sciences - 2024, Dept. Of Geological And Environmental Sciences

Geological and Environmental Sciences News

• Greetings from the Department Chair
• Thank You to our Donors
• Faculty Updates
• Emeritus Faculty Updates
• MGRRE Updates
• MGS Updates
• Geosciences Advisory Council
• Student Clubs
• Awards and Honors, 2024
• Department Graduates
• Publications 2023–24

Early Carbonate Diagenesis Of The Miocene Dam Formation In Southwestern Qatar, Mohammed Al-Musawi

Dissertations

The timing and mechanisms of platform-scale dolomitization have been the subject of a long and contentious scientific debate known as the “dolomite problem.” The current study provides new insights through an investigation of the Miocene mixed carbonate-siliciclastics-evaporites Dam Fm in southwestern Qatar. Petrographical, mineralogical, and geochemical data are integrated from two research cores, the Dam-01 and Dam-02. The Dam Fm provides an ideal site to investigate dolomitization because these rocks are: (i) relatively young, (ii) have not been deeply buried, (iii) exhibit no evidence of diagenetic resetting, and (iv) characterized by alternating meter-scale depositional cycles that help constrain the relative …

Origin Of The Mega-Streamlined Morphology In Ne Africa And Arabia: Remote Sensing And Field-Based Investigations, Mohamed Samy Mohamed Elhebery

Dissertations

Mega-streamlined landforms on Earth and Mars have been attributed to aeolian, glaciogenic, fluvial, and tectonic processes. Identifying the forces that shaped these landforms is paramount for understanding landscape evolution and constraining paleo-climate models and ice sheet reconstructions. Exhumed Late Ordovician glacial deposits and landscape of the North Gondwana are reported here for the first time from SE Egypt. Using field and remote sensing (Advanced Land Observing Satellite [ALOS], Phased Array L-band Synthetic Aperture Radar (PALSAR) radar, multispectral Landsat TM datasets, and digital elevation models (DEMs) I mapped the distribution of the Late Ordovician glacial features (i.e. deposits and landforms) in …

Per- And Polyfluoroalkyl Substances (Pfas) In Treated Sewage Sludge From Michigan Wastewater Treatment Plants, Garrett Wesley Link

Masters Theses

Concentrations, compositions, and variability of Per- and Polyfluoroalkyl Substances (PFAS) in sewage sludge are characterized using an extensive dataset of 350 samples from 190 wastewater treatment plants (WWTPs) across Michigan. All samples are comprised of final treated sewage sludge generated at the end of the wastewater treatment process. Concentrations of Σ₂₄ PFAS are log normally distributed with a range of 1 to 3200 ng/g dry wt. and of average 108 ± 277 ng/g dry wt. Compounds with carboxyl and sulfonic functional groups comprised 29% and 71% of Σ₂₄ PFAS concentrations, respectively, on average. Primary sample variability is associated …