Exploration for blind geothermal systems in the eastern Great Basin of Utah: An update on the “Lund North” INGENIOUS detailed study site
Christian L. Hardwick, Eugene Szymanski, Nicole R. Hart-Wagoner, S. Ashton, N. Christensen, Tait E. Earney, James E. Faulds, Jonathan M.G. Glen, A.I. Hiscock, Stefan Kirby, T. Knudsen, S. Kobe, Cary R. Lindsey, Benjamin Lyter Morbeck, Jared R. Peacock, Grant Harold Rea-Downing, William D. Schermerhorn, K. Smith
2025, Conference Paper, Proceedings, 50th workshop on geothermal reservoir engineering
Existing geothermal production in Utah is commonly collocated with surficial expressions of geothermal heat including active hot springs and hot spring deposits. However, geothermal potential across the Great Basin region is thought to be much higher for hidden or blind geothermal systems. Accordingly, exploration techniques that can locate geothermal resources...
Remote single-station seismic monitoring of the July–October 2022 earthquake swarm at Tau volcano, American Samoa
Clara Yoon, Robert Skoumal, Andrew J. Michael, A.D. Jolly, Andria P. Ellis, Drew T. Downs, Peter Dotray, Natalia I. Deligne, Jefferson Chang, Ninfa Lucia Bennington, Aaron Wech, Matthew M. Haney, Alicia J. Hotovec-Ellis, Elinor Lutu-McMoore, Marcus Langkilde
2025, The Seismic Record (5) 83-96
From July to October 2022, a non-eruptive volcanic earthquake swarm occurred within ~15 km of Taʻū Island, located in eastern American Samoa. Felt reports from local residents were the only available information about the swarm when it started, as American Samoa lacked a seismic monitoring network. We developed a...
Local, regional, and distal recordings of seismic unrest at Tau Island volcano, American Samoa
Aaron Wech, Matthew M. Haney, Jefferson Chang, A.D. Jolly, Clara Yoon, Robert J. Skoumal
2025, Bulletin of Volcanology (87)
A seismic swarm near Taʻū Island, a volcanic island in eastern American Samoa, occurred from July to October 2022. The earliest unrest was noted as felt shaking reports in late July, and instrumentation varied in the beginning of the sequence as the U.S. Geological Survey (USGS) Hawaiian Volcano Observatory responded...
Long-term trends in microseismicity during operational shut-ins at the Coso Geothermal Field, California
Joanna Holmgren, J. Ole Kaven, Volker Oye
2025, The Seismic Record (5) 73-82
Pausing injection and production can lead to induced seismicity in a variety of settings, with some of the largest events occurring during these so-called shut-ins. In geothermal fields, shut-ins are periodically conducted for maintenance on wells and surface infrastructure, thereby offering recurring means of estimating stress changes in the subsurface...
Highly pathogenic avian influenza virus H5N1 in double-crested cormorants (Nannopterum auritum) of the Chesapeake Bay, USA
Johanna Alexandra Harvey, Jeffery Dale Sullivan, Rebecca L. Poulson, Deborah L. Carter, Cindy P. Driscoll, Peter C. McGowan, Carl R. Callahan, Amy W. O'Donnell, Jennifer M. Mullinax, David E. Stallknecht, Diann J. Prosser
2025, Journal of Wildlife Diseases (61) 348-356
Double-crested Cormorants (Nannopterum auritum) have historically exhibited low levels of infection and antibodies to avian influenza virus (AIV). The recent global expansion of clade 2.3.4.4b A/goose/Guangdong/1/1996 highly pathogenic (HP) avian influenza virus H5N1 (HPAI H5N1) has resulted in large-scale mortalities across diverse waterbird taxa including cormorants. We sampled 32 and...
AAPG Energy and Minerals Division Tight Oil and Gas Committee Activities and Commodity Report for 2021-2022: Tuscaloosa Marine Shale, Gulf Coast basin, Louisiana and Mississippi
Celeste D. Lohr
2025, Preprint
The Upper Cretaceous Tuscaloosa marine shale (TMS) potential production area encompasses 20.4 million acres across central Louisiana (LA), southern Mississippi (MS), southwestern Alabama (AL), and a small southwestern section of the Florida panhandle (Hackley et al., 2018). It remains a minor and largely undeveloped unconventional shale oil play with production...
Is sexual size dimorphism in walleye, Sander vitreus, a driver of seasonal movements in Lake Erie?
Christian J. Bihun, Matthew Faust, Richard Kraus, Thomas MacDougall, Jason Robinson, Christopher Vandergoot, Graham D. Raby
2025, Journal of Fish Biology (106) 430-441
Walleye (Sander vitreus) are a sexually dimorphic species in which females are larger than males in adulthood. Walleye can also exhibit sex- and population-based differences in migration behavior. In Lake Erie, we used acoustic telemetry to test the prediction that female walleye exhibit larger broad-scale movements than males during the...
Reproductive parameters in invasive blue catfish (Ictalurus furcatus) from tributaries of the Chesapeake Bay in Maryland and Delaware, 2020–22
Heather L. Walsh, Christine L. Densmore, Amy M. Regish, Jessica L. Norstog, Johnny Moore, Branson Williams, Noah Bressman, Zachary Crum
2025, Open-File Report 2024-1074
Over the past few decades, Ictalurus furcatus (Valenciennes in Cuvier and Valenciennes, 1840; blue catfish) have become a formidable invasive species in tidal tributaries of the Chesapeake Bay in Maryland and Delaware. Knowledge of their reproductive behaviors can support managers in the determination of ideal timing and implementation of mitigation...
Catastrophic lava flow levee failure: Precursors, processes, and implications
Elisabeth Gallant, Hannah R. Dietterich, Matthew R. Patrick, David Matthew Hyman, Brett B Carr, John J. Lyons, Elinor S. Meredith
2025, Volcanica (8) 67-80
During an effusive eruption crisis the initial advance of a lava flow is typically the primary focus of model forecasts and hazard management efforts. Flow branching and lateral expansion of lava flows can pose significant dangers within evolving flow fields throughout the duration of an eruption and are an underappreciated...
“Leaky weirs” capture alluvial deposition and enhance seasonal mountain-front recharge in dryland streams
Laura M. Norman, Kristine; Uhlman, Hanna Coy, Natalie R. Wilson, Andrew M. Bennett, Floyd Gray, Kurt T. Ehrenberg
2025, Applied Water Science (15)
“Leaky weirs” are rock structures installed in dryland streams, which are anchored into exposed bedrock, loosely cemented, and designed to allow water to slowly pass through. They are being tested at a ranch in southeastern Arizona, USA, to restore and conserve the historic range and desert wetlands. Data are collected...
Perpetuation of avian influenza from molt to fall migration in wild Swan Geese (Anser cygnoides): An agent-based modeling approach
John Takekawa, Chang-Yong Choi, Diann J. Prosser, Jeffery D. Sullivan, Nyambaya Batbayar, Xiangming Xiao
2025, Viruses (17)
Wild waterfowl are considered to be the reservoir of avian influenza, but their distinct annual life cycle stages and their contribution to disease dynamics are not well understood. Studies of the highly pathogenic avian influenza (HPAI) virus have primarily focused on wintering grounds, where human and poultry densities are high...
Maintenance of genetic diversity despite population fluctuations in the lesser prairie-chicken (Tympanuchus pallidicinctus)
Andrew J. Lawrence, Scott A. Carleton, Sara J. Oyler-McCance, Randy W. DeYoung, Clay T. Nichols, Timothy F. Wright
2025, Ecology and Evolution (15)
Assessments of genetic diversity, structure, history, and effective population size (N e) are critical for the conservation of imperiled populations. The lesser prairie-chicken (Tympanuchus pallidicinctus) has experienced declines due to habitat loss, degradation, and fragmentation in addition to substantial population fluctuations with unknown effects on genetic diversity. Our objectives were to:...
Recovering the American horseshoe crab through a commitment to collaboration
David R. Smith, Mark Botton, Paul Shin
2025, Fisheries (50) 255-267
American horseshoe crab Limulus polyphemus populations are recovering because of cooperation among diverse stakeholders and data-driven collective action. Limulus polyphemus is one of four extant species facing common threats, and conservation successes and limitations hold lessons applicable to all the species. We review the advancement in management and monitoring over recent decades, discuss the...
Multiple dimensions define thresholds for population resilience of the eastern oyster, Crassostrea virginica
Megan K. La Peyre, H. Wang, Shaye E. Sable, Wei Wu, Bin Li, Devin Comba, Carlos Perez, Melanie Bates, Lauren M. Swam
2025, Ecology and Evolution (15)
A species' distribution depends on its tolerance to environmental conditions. These conditions are defined by a minimum, maximum, and optimal ranges of single and combined factors. Forays into environmental conditions outside the minimum or maximum tolerance of a species (i.e., thresholds) are predicted to have large effects on a species'...
Timing of and pressure-temperature constraints on deformation in the Toxaway dome, eastern Blue Ridge: Evidence for continuous deformation from the Neoacadian orogeny to the Alleghanian orogeny
Jamie S.F. Levine, Nicholas Edwin Powell, Gabriele Casale, Claire P. Martin
2025, Geosphere (21) 179-205
Many mountain belts are built through repeated collision, and in the case of orogenies closely spaced in time, determining when one orogeny ends and another begins can be challenging. The southern Appalachian mountains were formed by three mountain-building events closely spaced in time, including the Taconic (ca. 480–440 Ma), Neoacadian...
New 40Ar/39Ar eruption ages reveal an important temporal relationship between mafic and silicic volcanism in the Yellowstone Plateau volcanic field
Cole Messa, Kenneth Sims, Mark E. Stelten, Brandi Lawler, Mel Kuntz
2025, Geology (53) 317-322
The chronology of mafic eruptions and their temporal relation to rhyolitic volcanism in the Yellowstone Plateau volcanic field are poorly known, thereby limiting our understanding of the way(s) in which mafic magmatism drives rhyolitic activity. To address this, we measured 40Ar/39Ar eruption ages on 13 mafic samples collected from Henrys Fork...
Prospectivity mapping for geologic hydrogen
Sarah E. Gelman, Jane S. Hearon, Geoffrey S. Ellis
2025, Professional Paper 1900
Geologic, or naturally occurring, hydrogen has the potential to become a new, low-carbon, primary energy resource. Often referred to as “white” or “gold” hydrogen, this gas occurs naturally in the Earth’s subsurface, similar to petroleum resources. However, unlike petroleum, which releases carbon dioxide when burned, burning hydrogen only produces water...
Water use across the conterminous United States, water years 2010–20
Laura Medalie, Amy E. Galanter, Anthony J. Martinez, Althea A. Archer, Carol L. Luukkonen, Melissa A. Harris, Jonathan V. Haynes
2025, Professional Paper 1894-D
Withdrawals of water for human use are fundamental to the evaluation of the Nation’s water availability. This chapter provides an analysis of public supply, crop irrigation, and thermoelectric power water use for the conterminous United States (CONUS) during water years 2010–20. These three categories account for about 90 percent of...
Surficial geology and Quaternary tectonics of the Madison Valley and fault zone, Madison, Gallatin, and Beaverhead Counties, southwest Montana
Chester A. Ruleman, Theodore R. Brandt
2025, Scientific Investigations Map 3508
The north-northwest-striking Madison fault is approximately 95 kilometers in length, lying at the confluence of the northeastern Basin and Range province and the Yellowstone tectonic parabola. The fault zone consists primarily of west-dipping normal faults that have east-dipping antithetic faults, which create the Madison Valley graben and several northeast-trending intrabasin...
Endemic and invasive species: A history of distributional trends in the fish fauna of the lower New River drainage
Stuart A. Welsh, Daniel A. Cincotta, Nathaniel V. Owens, Jay R. Stauffer Jr.
2025, Water (17)
Invasive species are often central to conservation efforts, particularly when concerns involve potential impacts on rare, endemic native species. The lower New River drainage of the eastern United States is a watershed that warrants conservation assessment, as the system is naturally depauperate of native fish species and it is nearly...
Groundwater-level elevations in the Denver Basin bedrock aquifers and Upper Black Squirrel Creek alluvial aquifer, El Paso County, Colorado, 2021–24
Zachary D. Kisfalusi, Erin K. Hennessy, Jackson B. Sharp
2025, Scientific Investigations Report 2024-5123
El Paso County is the second-most populous county in Colorado and is projected to grow another 15 percent by 2030. Within El Paso County is the Upper Black Squirrel Creek Designated Groundwater Basin (Black Squirrel Basin), an area where surface water is scarce and water users rely primarily on groundwater...
Chemostratigraphy of the Cretaceous Hue Shale in Arctic Alaska: Exploring paleoceanographic controls on trace element enrichment, organic matter accumulation, and source-rock evolution
Palma J. Botterell, Margaret M. Sanders, David W. Houseknecht, Richard O. Lease, William A. Rouse, Katherine J. Whidden, Julie A. Dumoulin, Rebecca A. Smith, Christina A. DeVera, Brett J. Valentine
2025, Applied Geochemistry (180)
We document chemostratigraphy in an outcrop of late Albian to early Campanian (∼103–82 Ma) marine source rocks to better understand paleoenvironmental controls on trace element (TE) enrichment and organic matter accumulation in the distal Colville foreland basin of Arctic Alaska and how those drivers are linked to arc volcanism and successions...
An enigmatic wild passerine mortality event in the eastern United States
Sabrina S. Greening, Julie C. Ellis, Nicole L. Lewis, David B. Needle, Cristina M. Tato, Susan Knowles, Valerie I. Shearn-Bochsler, Jaimie L. Miller, Daniel A. Grear, Jeffrey M. Lorch, David S. Blehert, Caitlin Burrell, Lisa A. Murphy, Erica A. Miller, C. Brandon Ogbunugafor, Andrea J. Ayala, W. Kelley Thomas, Megan S. Kirchgessner, Christine Casey, Ethan P. Barton, Michael J. Yabsley, Eman Anis, Roderick B. Gagne, Patrice Klein, Cindy P. Driscoll, Chelsea Sykes, Robert H. Poppenga, Nicole M. Nemeth
2025, Veterinary Sciences (12)
The ability to rapidly respond to wildlife health events is essential. However, such events are often unpredictable, especially with anthropogenic disturbances and climate-related environmental changes driving unforeseen threats. Many events also are short-lived and go undocumented, making it difficult to draw on lessons learned from past investigations. We report on...
Reply to, “Comment on ‘The 1886 Charleston, South Carolina, earthquake: Relic railroad offset reveals rupture,’ by Roger Bilham and Susan E. Hough”
Roger Bilham, Susan E. Hough
2025, The Seismic Record (5) 23-34
We welcome this opportunity to respond to Pratt et al. (2024) (hereinafter P24). Bilham and Hough (2023) proposed a “first-cut” elastic deformation model for the 1886 earthquake, a quantitative source model constrained by identified coseismic constraints. A key observation was the measurement of a lateral offset of...
Estimating the social and economic consequences of proposed management alternatives at the National Elk Refuge
Margaret C. McEachran, Andrew Don Carlos, Gavin G. Cotterill, Eric K Cole, Jonathan D. Cook
2025, Scientific Investigations Report 2024-5119-E
The National Elk Refuge (Refuge) is managed by the U.S. Fish and Wildlife Service and includes habitats for bison and elk. Bison and elk provide opportunities for wildlife-related recreation and contribute to the tourism industry in and around Jackson, Wyoming. Over the last century, the Refuge has provisioned supplemental feed...
