Geologic map and structure sections along the southern part of the Bartlett Springs Fault Zone and adjacent areas from Cache Creek to Lake Berryessa, northern Coast Ranges, California
Benjamin L. Melosh, Jackson W. Bodtker, Zenon C. Valin
2024, Scientific Investigations Map 3514
IntroductionLocated in the Coast Ranges of northern California, the Bartlett Springs Fault Zone is the easternmost fault in the San Andreas Fault system in northern California. The fault is a right-lateral, strike-slip structure considered capable of producing an earthquake of moment magnitude 7. The purpose of this mapping is to...
Iodine-129 in the eastern Snake River Plain aquifer at and near the Idaho National Laboratory, Idaho, 2021–22
Kerri C. Treinen, Allison R. Trcka, Nick Krohe, Genene Lehotsky
2024, Scientific Investigations Report 2024-5124
Between the 1950s and 1980s, wastewater generated at the Idaho National Laboratory contained Iodine-129 (129I); this wastewater was discharged directly into the eastern Snake River Plain (ESRP) aquifer through a deep disposal well, unlined infiltration ponds, or leaked from distribution systems below industrial facilities. During 2021–22, the U.S. Geological Survey,...
Bee habitat, but not bee community structure, varies across grassland management in four national parks in the Mid-Atlantic, USA
Diane L. Larson, Andrew P Landsman, Michael Simanonok, Jennifer L. Larson, Cora Davies, Clint Otto
2024, Ecology and Evolution (14)
National parks in the U.S. play a large role in providing habitat for native pollinators. In parks that are established to preserve cultural landscapes, park managers recognize an opportunity to improve pollinator habitat while maintaining historically accurate conditions. In this study we document floral resources and native bees within...
Antibodies to influenza A virus in Lesser (Aythya affinis) and Greater Scaup (Aythya marila) in the USA
Harrison Huang, Rebecca L. Poulson, Jeffery D. Sullivan, Susan E.W. De La Cruz, Hutchison Walbridge, David E. Stallknecht, Diann Prosser
2024, Journal of Wildlife Diseases (60) 940-949
Scaup, including both Lesser and Greater (Aythya affinis and Aythya marila, respectively), are a grouping of populous and widespread North American diving ducks. Few influenza type A viruses (IAV) have been reported from these species despite a high prevalence of antibodies to IAV being reported. Existing virologic and serologic data indicate that...
Agricultural return flow dynamics on a reach of the East River, Colorado, as assessed by mass balance
Carleton R. Bern, Rachel G. Gidley
2024, Open-File Report 2024-1075
The U.S. Geological Survey, in cooperation with the Upper Gunnison River Water Conservancy District, studied historical streamflow in a reach of the East River, Colorado, to gain a preliminary understanding of return flow dynamics. Return flow is agricultural irrigation water that is not consumed by evapotranspiration and instead reaches streams...
Evidence of nitrate attenuation in intertidal and subtidal groundwater in a subterranean estuary at a Cape Cod embayment, East Falmouth, Massachusetts, 2015–16
Thomas G. Huntington, Kevin D. Kroeger, Timothy D. McCobb, J.K. Bohlke, John A. Colman, Thomas W. Brooks, Beata Syzmczycha
2024, Scientific Investigations Report 2024-5100
Nitrogen dynamics in intertidal and nearshore subtidal groundwater (subterranean estuary) adjacent to the Seacoast Shores peninsula, Falmouth, Massachusetts, were investigated during 2015–16 by the U.S. Geological Survey. The peninsula is a densely populated residential area with septic systems and cesspools that are substantial sources of nitrogen to groundwater. The study...
Pragmatically mapping Phragmites with unoccupied aerial systems: A comparison of invasive species land cover classification using RGB and multispectral imagery
Alexandra Danielle Evans, Jennifer Marie Cramer, Victoria Mary Scholl, Erika E. Lentz
2024, Remote Sensing (16)
Unoccupied aerial systems (UASs) are increasingly being deployed in coastal environments to rapidly map and monitor changes to geomorphology, vegetation, and infrastructure, particularly in difficult to access areas. UAS data, relative to airplane or satellite data, typically have higher spatial resolution, sensor customization, and increased flexibility in temporal resolution, which...
Disparities in Perimyotis subflavus body mass between cave and culvert hibernacula in Georgia, USA
Emily Ferrall, S. Perea, K.M. Morris, P.E. Pattavina, Brian J. Irwin, J. Hepinstall-Cymerman, S.B. Castleberry
2024, Ecology and Evololution (14)
The tricolored bat (Perimyotis subflavus), once common in the eastern United States, has experienced significant mortality due to white-nose syndrome (WNS), a fungal disease that primarily affects bats hibernating in caves and mines. In coastal regions of the southeastern United States, where caves and mines are scarce, tricolored bats often...
Influenza A virus antibodies in ducks and introduction of highly pathogenic influenza A(H5N1) virus, Tennessee, USA
David Stallknect, Deborah Carter, Abigail Blake-Bradshaw, Nicholas M. Masto, Cory Highway, Jamie Feddersen, Richard J. Webby, Bradley S. Cohen, Jeffery D. Sullivan, Rebecca L. Poulson
2024, Emerging Infectious Diseases (30) 2647-2650
Testing of ducks in Tennessee, United States, before introduction of highly pathogenic influenza A(H5N1) virus demonstrated a high prevalence of antibodies to influenza A virus but very low prevalence of antibodies to H5 (25%) or H5 and N1 (13%) subtypes. Antibody prevalence increased after H5N1 introduction....
Assessment of the interconnection between Tampa Bay and the Floridan aquifer system: Historical groundwater data compilation and analysis, 1976–2022
Jeremy D. Decker
2024, Scientific Investigations Report 2024-5073
The U.S. Geological Survey used existing data collected after the last major navigational channel modification in the mid-1980s to investigate groundwater levels and chloride concentrations in wells in the Floridan aquifer system and other aquifers beneath and near Tampa Bay. Tampa Bay is located on the west-central coast of Florida...
Climate vulnerability assessment of Oregon hatchery programs
Hannah Barrett, Melanie J. Davis
2024, Report
The goal of this project was to assess the vulnerability to climate change impacts for a sample set of hatchery programs representing different geographic areas and primary anadromous species raised in state-managed Oregon hatcheries (Summary Figure 1). Freshwater and marine ecosystem processes can significantly influence salmon and steelhead survival, and...
Cycles in adult steelhead length suggest interspecific competition in the North Pacific Ocean
Ryan A. Vosbigian, Logan Wendling, Timothy Copeland, Matthew Richard Falcy
2024, Canadian Journal of Fisheries and Aquatic Sciences (81) 1666-1675
Anadromous fishes rely on abundant prey in the ocean to grow large quickly, but prey limitation leads to interspecific competition. When species interactions are difficult to observe, growth can be studied to detect otherwise cryptic signals of competition. We describe a previously undocumented two-year cycle in the lengths of adult...
Wintering grounds leave their mark: Where birds winter influences genomic structure in Arctic nesting common eiders
Sarah A. Sonsthagen, Robert E. Wilson, Russell R. Turner, Marie-Josee Fortin, Grant Gilchrist, Vicki L. Friesen
2024, Conservation Genetics (26) 89-101
Information about the distribution of genomic variation within and between nesting locations of waterfowl can aid in defining populations and conservation plans and inform harvest management. Identification of locations where shifts in allelic diversity occur is particularly important for Arctic nesting species nesting, a region currently experiencing rapid change associated...
Updating the crustal fault model for the 2023 National Seismic Hazard Model for Alaska
Peter J. Haeussler, Adrian Bender, Peter M. Powers, Rich D. Koehler, Daniel S. Brothers
Natalia A. Ruppert, M. Jadamec, Jeffery T. Freymueller, editor(s)
2024, Book chapter, Tectonics and seismic structure of Alaska and northwestern Canada: EarthScope and beyond
We present the crustal fault model for Alaska, based on geologic observations, as a primary input for the 2023 revision of the U.S. Geological Survey National Seismic Hazard Model. We update the 2013 Alaska Quaternary fault and fold database to produce a simplified model of 105 fault sections and four...
Mapping karst groundwater flow paths and delineating recharge areas for springs in the Little Sequatchie and Pryor Cove watersheds, Tennessee
Benjamin V. Miller
2024, Scientific Investigations Report 2024-5089
The Little Sequatchie River and Pryor Cove Branch, in southern Tennessee, drain the eastern escarpment of the Cumberland Plateau to the Sequatchie River near the southern end of the Sequatchie Valley. The Little Sequatchie River is the largest tributary to the Sequatchie River by drainage area, covering over 120 square...
Anatidae brood records in Maine during studies of Anas rubripes (American black duck), 1977–94
Jerry R. Longcore, Christine M. Bunck, Daniel G. McAuley, David A. Clugston
2024, Data Report 1200
This report describes a compilation of brood observations for Anatidae species breeding in Maine during an 18-year period (1977–94) that were made by the U.S. Geological Survey’s Patuxent Wildlife Research Center while it was operated by the U.S. Fish and Wildlife Service. During four focused studies, variables affecting the declining...
Using crustal-scale refraction data of joint inversions of Rayleigh-wave dispersion curves and H/V spectral ratios for Atlantic Coastal Plain velocity structure, eastern U.S.
Thomas Pratt, Stefano Parolai, Valerio Poggi, Ilaria Dreossi
2024, Bulletin of the Seismological Society of America (115) 270-295
Shallow shear‐wave velocities (Vs) sometimes are estimated from joint inversions of horizontal‐to‐vertical (H/V) spectral ratios and surface‐wave dispersion curves derived from ambient noise or small active sources. Here, we evaluate carrying out these inversions using Rayleigh‐wave dispersion curves computed from crustal‐scale P‐wave seismic refraction data. We use data from...
Brittle regime slip partitioned damage and deformation mechanisms along the eastern Denali fault zone in southwestern, Yukon
Jonathan Saul Caine, Omero F. Orlandini, Frederick W. Vollmer, Heather A. Lowers
2024, Journal of Geophysical Research: Solid Earth (129)
Rare bedrock exposures of the eastern Denali fault zone in southwestern Yukon allow for the measurement, sampling, and analyses of brittle regime fault slip data and deformation mechanisms to explore relations to far field, oblique plate motions. Host rock lithologies and associated slip surfaces show episodic damage zone‐related deformation and...
Seismicity zoning at Coso geothermal field and stress changes from fluid production and migration
Sui Tung, Joern Kaven, Manoochehr Shirzaei, Timothy Masterlark, Herbert F. Wang, Wei-Chung Huang, Kurt L. Feigl
2024, Earth and Planetary Science Letters (646)
The Coso geothermal field is a major geothermal power production site in the western United States. It has been observed that low-magnitude seismic events (M < 3.71) are unevenly distributed in three distinct zones, namely, nearfield (<3 km), midfield (3–6 km), and...
Three-dimensional temperature maps of the Williston Basin, USA: Implications for deep hot sedimentary and enhanced geothermal resources
Sarah E. Gelman, Erick R. Burns
2024, Geothermics (125)
As part of U.S. Geological Survey's (USGS) efforts to identify and assess geothermal energy resources of the US, a three-dimensional (3D) geologic and thermal model has been constructed for the Williston Basin, USA. The geologic model consists of all sedimentary units above the Proterozoic and Archean crystalline rock (called basement...
Peak streamflow trends in South Dakota and their relation to changes in climate, water years 1921–2020
Nancy A. Barth, Steven K. Sando
2024, Scientific Investigations Report 2023-5064-I
Peak-flow (flood) frequency analysis is essential to water-resources management applications, including the design of critical infrastructure such as bridges and culverts, and floodplain mapping. Federal guidelines for performing peak-flow flood frequency analyses are presented in a U.S. Geological Survey Techniques and Methods Report known as Bulletin 17C. A basic assumption...
Deep syntectonic burial of the Anthracite belt, Eastern Pennsylvania
Mark A. Evans, Aaron M. Jubb
2024, International Journal of Coal Geology (295)
Fluid inclusion microthermometry and Raman spectroscopy of fluid inclusions in quartz veins from the Pennsylvanian rocks of the Anthracite belt, eastern Pennsylvania support a deep burial model of coalification in favor of focused orogenic hot fluid flow. High-temperature (250 to 255 °C) trapping of CH4 ± CO2 saturated aqueous fluids and CH4 ± CO2 inclusions indicate fluid...
Depths in a day - A new era of rapid-response Raman-based barometry using fluid inclusions
Charlotte DeVitre, Penny E. Wieser, Alexander T. Bearden, Araela Richie, Berenise Rangel, Matthew Gleeson, John Grimsich, Kendra J. Lynn, Drew T. Downs, Natalia I. Deligne, Katherine M. Mulliken
2024, Journal of Petrology (65)
Rapid-response petrological monitoring is a major advance for volcano observatories, allowing them to build and validate models of plumbing systems that supply eruptions in near-real-time. The depth of magma storage has recently been identified as high-priority information for volcanic observatories, yet this information is not currently obtainable via petrological monitoring...
Trends and environmental impacts of virtual water trade
Mesfin M. Mekonnen, Mahlet M. Kebede, Betelhem W. Demeke, Joel A. Carr, Ashok Chapagain, Carole Dalin, Peter Debaere, Paolo D’Odorico, Landon Marston, Chittaranjan Ray, Lorenzo Rosa, La Zhuo
2024, Nature Reviews Earth & Environment (5) 890-905
Virtual water describes water embedded in the production of goods and offers meaningful insights about the complex interplay between water, trade and sustainability. In this Review, we examine the trends, major players, traded products and key drivers of virtual water trade (VWT). Roughly 20% of water used in global food...
Reducing uncertainty with iterative model updating parses effects of competition and environment on salamander occupancy
Jo Avital Werba, Graziella Vittoria DiRenzo, Adrianne Brand, Evan H. Campbell Grant
2024, Oecologia (206) 305-316
Making timely management decisions is often hindered by uncertainty. Monitoring reduces two key types of uncertainty. First, it serves to reduce structural uncertainty of how the system works and provides support for expectations of how a system works. Second, it serves to reduce parametric uncertainty of the drivers of system...
