Mgrre_Thinsections_Mgrre_11_6,
2026
Western Michigan University
Mgrre_Thinsections_Mgrre_11_5,
2026
Western Michigan University
Mgrre_Thinsections_Mgrre_11_4,
2026
Western Michigan University
Mgrre_Thinsections_Mgrre_11_3,
2026
Western Michigan University
Mgrre_Thinsections_Mgrre_11_2,
2026
Western Michigan University
Mgrre_Thinsections_Mgrre_11_1,
2026
Western Michigan University
A Sneak Peek Into Prehistory: Curating An Interactive Fossil Display To Spark Interest In The Ua Little Rock Natural History Museum,
2026
University of Arkansas at Little Rock
A Sneak Peek Into Prehistory: Curating An Interactive Fossil Display To Spark Interest In The Ua Little Rock Natural History Museum, Syd Joheim, Rene Shroat-Lewis
Research and Creative Works Expo
Arkansas does not currently have a dedicated natural history museum, creating a unique opportunity for UA Little Rock following the recent donation of an expansive fossil collection. In response, the university established a natural history museum initiative intended to benefit both the campus community and the broader public across Arkansas. This initiative provides accessible resources for learning about natural science, evolution, and the state’s prehistoric past, areas that are often underrepresented in informal science education. It also serves as a platform for outreach, student engagement, and undergraduate research, strengthening UA Little Rock’s role in science education, workforce development, and community …
Extensive Glacier Loss In The Coterminous United States,
2026
Portland State University
Extensive Glacier Loss In The Coterminous United States, Andrew G. Fountain, Bryce Glenn, Christopher Mcneil, Brian Menounos
Geology Faculty Publications and Presentations
Glaciers populate the mountain ranges of the western conterminous United States and despite their importance to alpine hydrology, their area and volume change have never been comprehensively evaluated. Our study shows that since the mid-twentieth century about one-quarter of the glaciers have disappeared and the overall area and volume are reduced by one-third. The pattern of glacier shrinkage suggests most glaciers in the conterminous United States are largely maintained by local topographic influences due to their small size. These results improve our understanding of evolving high alpine hydrology and importance to ecosystem processes.
Did Seismic Events Trigger The Growth Of Aragonitic Speleothems In Mawmluh Cave, North-East India?,
2026
Johannes Gutenberg Universitat, Mainz, Germany
Did Seismic Events Trigger The Growth Of Aragonitic Speleothems In Mawmluh Cave, North-East India?, Dildi Dildi, Dana Riechelmann Dr., Michael Weber Dr., Anne Jantschke Dr., Regina Mertz-Kraus Dr., Denis Scholz Dr.
International Journal of Speleology
Mawmluh Cave, north-east India, is located in a seismically very active region within the Himalayas with frequent earthquakes of varying magnitude. So far, speleothems from the cave have mainly been used to reconstruct past monsoon variability. The potential effect of seismic events on speleothem formation in Mawmluh Cave, however, has not been studied in detail yet. We investigated three stalagmites from Mawmluh Cave, each predominantly consisting of calcite overlain by substantially younger aragonite at the top (i.e., an aragonite ‘cap’). 230Th/U-dating shows that the initiation of aragonite growth occurred between 1859 and 1950 CE in agreement with previous studies. The …
Distribution Of Diagenetic Alterations In Lower Cretaceous Strata Of The Tanzanian Coastal Sedimentary Basin,
2026
Department of Geosciences, University of Dar es Salaam, P.O Box 35052, Dar es Salaam, Tanzania
Distribution Of Diagenetic Alterations In Lower Cretaceous Strata Of The Tanzanian Coastal Sedimentary Basin, Justina James Saroni
Tanzania Journal of Science
The Lower Cretaceous sedimentary rocks of the Coastal Sedimentary Basin of Tanzania crop out in the Wami and Mandawa basins and are stratigraphically similar to the reservoir rocks hosting gas at Songo Songo. This study examines the relationship between facies and diagenetic processes in outcrops from the study area. Outcrop description and petrographic analysis by using optical and scanning electron microscopy (SEM) were used to identify facies and diagenetic alterations. Sixteen facies were identified, including siliciclastic facies: conglomerate (Gm), sandstones (St, Sp, Sm, Sh, Sr), siltstone and mudstone (Fm, Fl); and carbonate facies are packstone (Lsp, Lspc, Lspg, Lspo), grainstone …
"The Course Of The Tennessee River",
2026
University of North Alabama
"The Course Of The Tennessee River", William Lindsey Mcdonald
Research Articles
The article describes the usual course of the Tennessee River and various geological theories for the direction of its course. In addition, it explores the specific geomorphology of the Muscle Shoals and its impact on North Alabama.
"Our Heritage From The People",
2026
University of North Alabama
"Our Heritage From The People", William Lindsey Mcdonald
Writings
A lecture presented to a history seminar at the University of North Alabama in March of 1979. The lecture addresses the geography and geology of North Alabama, removal of indigenous people, cultural influence of settlers, and development of the Tennessee Valley into contemporary settlements.
Editorial For The Special Issue “Advances And Applications Of Polymer Gels For Subsurface Energy And Storage”,
2026
Missouri University of Science and Technology
Editorial For The Special Issue “Advances And Applications Of Polymer Gels For Subsurface Energy And Storage”, Baojun Bai, Jingyang Pu
Geosciences and Geological and Petroleum Engineering Faculty Research & Creative Works
Polymer gels are essential functional materials for subsurface energy operations, playing a critical role in conformance control, fluid diversion, hydraulic fracturing, and leakage mitigation. As reservoirs become increasingly complex and the demand for sustainable energy grows, continued innovation in gel technologies is crucial. This editorial introduces a Special Issue titled "Advances and Applications of Polymer Gels for Subsurface Energy and Storage," which compiles seven original research articles exploring recent developments in gel synthesis, characterization, and applications. The featured studies highlight the versatility of polymer gels, including nanoparticle-reinforced composites, foam–gel hybrids, recrosslinkable preformed particle gels, and advanced fracturing fluids. The contributions …
Karst Hydrogeologic Framework And Factors Contributing To Flooding In Burgin, Kentucky,
2026
University of Kentucky
Karst Hydrogeologic Framework And Factors Contributing To Flooding In Burgin, Kentucky, Charles Taylor, Junfeng Zhu, Matthew Carmichael, Hudson J. Koch
KGS Publications and Maps
This report examines the karst hydrogeologic setting and drainage characteristics that are thought to contribute to frequent severe flooding in the city of Burgin in Mercer County, Kentucky. Burgin is located at the eastern end of an approximately 4.5 mi² mapped karst groundwater basin in the Ordovician limestone aquifer system in the Inner Bluegrass karst region. Flooding occurs within a streamless 1.4 mi² dry karst valley where almost all channelized surface runoff has been captured by sinkholes and sinking stream segments and diverted underground by conduit piracy. The only natural outlet for water exiting from the karst valley and larger …
Hydrogeophysical Assessment Of Groundwater And Saltwater–Freshwater Interface In A Quaternary– Neogene Coastal Aquifer, Kilwa Kisiwani Island, Southeast Tanzania,
2026
Department of Geosciences, School of Mines and Geosciences University of Dar es Salaam P. O. BOX 35052, Dar es Salaam, Tanzania
Hydrogeophysical Assessment Of Groundwater And Saltwater–Freshwater Interface In A Quaternary– Neogene Coastal Aquifer, Kilwa Kisiwani Island, Southeast Tanzania, Simon R. Melchioly
Tanzania Journal of Science
This study aims to identify and explore new potential sites of groundwater resources using geophysical methods, and to demarcate the depth to the saltwater-freshwater interface. Kilwa Kisiwani Island is geologically covered mostly by Neogene and Quaternary alluvial sediments, sand and gravel. The geophysical techniques employed during the research include Vertical Electrical Sounding (VES), Electrical Resistivity Tomography (ERT), and Transient Electromagnetics (TEM). The Island has the potential for groundwater occurrences, but the layer with fresh water is shallow and thin. Out of the 18 VES sites, 2 (11%) points have shown non-potential, but the remaining 16 (89%) of the VES sites …
Mono Gold: An Informal Account Of The Geology, Production, And History Of Mono County Gold And Silver Mining Districts,
2026
Citrus College
Mono Gold: An Informal Account Of The Geology, Production, And History Of Mono County Gold And Silver Mining Districts, D. D. Trent
Eastern Sierra History Journal
Mono Gold explores the mining production, technology, and history of the Eastern Sierra, with a special focus on Mono County. Author Dee Trent, a geologist, spent decades visiting, researching, and photographing each of the mining operations discussed in this book-length monograph.
Evolution Of Propagator Wakes On The Kolbeinsey Ridge From An Integrated Geophysical Perspective,
2026
University of Nebraska-Lincoln
Evolution Of Propagator Wakes On The Kolbeinsey Ridge From An Integrated Geophysical Perspective, Ethan Stowell
Department of Earth and Atmospheric Sciences: Dissertations, Theses, and Student Research
Oceanic lithosphere is formed following the extension and rifting of a continent, with new material generated at mid-ocean ridges. While ridges generally spread in the direction of extension, individual spreading centers are offset by perpendicular transform faults that break the ridges into individual segments. Ridge propagation, in which one ridge segment grows at the expense of another’s shortening, has been identified in global investigations as a poorly understood component of axial reorganization. This process leaves propagator wake structures composed of faults and pseudofaults visible as lows in Earth’s gravitational field, and transferred lithosphere with a distorted magnetic signature. This study …
Advancements In Modern Seismic Monitoring: Integrating Novel And Traditional Methods For Earthquake Detection, Characterization, And Structural Imaging,
2026
University of Texas at El Paso
Advancements In Modern Seismic Monitoring: Integrating Novel And Traditional Methods For Earthquake Detection, Characterization, And Structural Imaging, Marc Adrian Garcia
Open Access Theses & Dissertations
Modern seismic monitoring has been transformed by machine-learning methods that detect and locate earthquakes at scales manual analysis cannot reach. This dissertation develops, validates, and applies such workflows across three settings that span the range of modern monitoring problems: a major subduction-zone aftershock sequence, the tectonic questions that sequence can answer, and an urban region without any local monitoring at all. First, I construct a high-resolution catalog for the aftershock sequence of the September 8, 2017, Mw 8.2 Tehuantepec, Mexico earthquake, by integrating deep-learning phase detection with established location and relocation methods. The resulting catalog of 11,374 relocated earthquakes is …
Stratigraphic Analysis Of The Buda Limestone With Implications On Hydrocarbon Production Constraints, Madison And Houston County, Texas,
2026
Stephen F Austin State University
Stratigraphic Analysis Of The Buda Limestone With Implications On Hydrocarbon Production Constraints, Madison And Houston County, Texas, Jeffrey C. Bridges
Electronic Theses and Dissertations
The Fort Trinidad and Alabama Ferry fields located in eastern Madison and southern Houston County, Texas, have produced approximately 100 million barrels of oil equivalent to date, with approximately 65% of this being oil. However, there has been considerable variation in production within this Cretaceous carbonate play of the Fort Trinidad field, despite similar well completions and perforated intervals. The Buda Limestone, a key producing formation in the Cretaceous interval, is described as under-pressurized and often has lost circulation problems during drilling due to sub-pressure vertical fractures. Within the producing interval, the mechanisms for water production versus oil production are …
Characterizing Microplastics In Flood Sediments After Hurricane Helene In Asheville, North Carolina,
2026
Clemson University
Characterizing Microplastics In Flood Sediments After Hurricane Helene In Asheville, North Carolina, Abigail Sgan
All Theses
Microplastics are contaminants of emerging concern whose ubiquity across natural environments results in their involvement in many kinds of natural processes, including transportation and deposition in natural systems. The purpose of this thesis is to characterize microplastics and determine the mechanisms that affect their distribution, transport, and sequestration within known Hurricane Helene flood deposits in fluvial and Southern Appalachian wetland environments after Hurricane Helene in Asheville, North Carolina. Four fluvial and four Southern Appalachian wetland environments were sampled after Hurricane Helene. Samples collected in fluvial environments were taken as grab samples from surficial sandy flood deposits left behind by flooding …
