Chromium in minerals and selected aquifer materials
Krishangi D. Groover, John A. Izbicki, William Benzel, Jean M. Morrison, Andrea L. Foster
2023, Professional Paper 1885-C
Between 1952 and 1964, hexavalent chromium, Cr(VI), was released into groundwater from a Pacific Gas and Electric Company (PG&E) compressor station in Hinkley, California, in the western Mojave Desert 80 miles northeast of Los Angeles, California. In 2015, the extent of anthropogenic Cr(VI) in groundwater in Hinkley and Water Valleys...
Survey of chromium and selected element concentrations in rock, alluvium, and core material
John A. Izbicki, Krishangi D. Groover
2023, Professional Paper 1885-B
Between 1952 and 1964, hexavalent chromium, Cr(VI), was released into groundwater from the Pacific Gas and Electric Company (PG&E) compressor station in Hinkley, California, in the western Mojave Desert 80 miles northeast of Los Angeles, California. In 2015, the extent of anthropogenic Cr(VI) in groundwater in Hinkley and Water Valleys...
Unzipping supercontinent Pangea: Geologic, potential field data, and buried structures, and a case for sequential Atlantic opening
Aaron G. Stubblefield, Robert D. Hatcher, J. Wright Horton, Jr., David L. Daniels
2023, Tectonophysics (856) 229842 (1-10 online)
Amalgamation of Pangea culminated with zippered N-to-S closing of the Theic ocean during the Alleghanian orogeny. Transpressional-rotational collision produced widespread dextral faulting throughout the eastern Appalachian hinterland, and thrust faulting in the western hinterland and foreland. The partially buried southern...
Multiple models for outbreak decision support in the face of uncertainty
Katriona Shea, Rebecca K. Borchering, William J.M. Probert, Emily Howerton, Tiffany L. Bogich, Shou-Li Li, Willem G. van Panhuis, Cecile Viboud, Ricardo Aguas, Artur A. Belov, Sanjana H. Bhargava, Sean M. Cavany, Joshua C. Chang, Cynthia Chen, Jinghui Chen, Shi Chen, YangQuan Chen, Lauren M. Childs, Carson C. Chow, Isabel Crooker, Sara Y. Del Valle, Guido Espana, Geoffrey Fairchild, Richard C. Gerkin, Timothy C. Germann, Quanquan Gu, Xiangyang Guan, Linhong Guo, Gregory R. Hart, Thomas J. Hladish, Nathaniel Hupert, Daniel Janies, Cliff C. Kerr, Daniel J. Klein, Eili Y. Klein, Gary Lin, Carrie Manore, Lauren A. Meyers, John E. Mittler, Kunpeng Mu, Rafael C. Nunez, Rachel J. Oidtman, Remy Pasco, Ana Pastore y Piontti, Rajib Paul, Carl A. B. Pearson, Dianela R. Perdomo, T. Alex Perkins, Kelly Pierce, Alexander N. Pillai, Rosalyn C. Rael, Katherine Rosenfeld, Chrysm W. Ross, Julie A. Spencer, Arlin B. Stoltzfus, Kok B. Toh, Shashaank Vattikuti, Alessandro Vespignani, Lingxiao Wang, Lisa J. White, X. Pan, Yupeng Yang, Osman N. Yogurtcu, Weitong Zhang, Yanting Zhao, Difan Zou, Matthew J. Ferrari, David Pannell, Michael J. Tildesley, J. Seiferth, Elyse Johnson, Matthew Biggerstaff, Michael A Johansson, Rachel B. Slayton, John Levander, Jeff Stazer, J. Kerr, Michael C. Runge
2023, PNAS (120)
Policymakers must make management decisions despite incomplete knowledge and conflicting model projections. Little guidance exists for the rapid, representative, and unbiased collection of policy-relevant scientific input from independent modeling teams. Integrating approaches from decision analysis, expert judgment, and model aggregation, we convened multiple modeling teams to evaluate COVID-19 reopening strategies...
Redefinition of the Petersburg batholith and implications for crustal inheritance in the Dinwiddie terrane, Virginia, USA
Mark W. Carter, Ryan J. McAleer, Christopher S. Holm-Denoma, Marcie E. Occhi, Brent E. Owens, Jorge A. Vazquez
2023, Geosphere (19) 900-932
Field relations as well as geochemical and petrologic studies of metaigneous rocks assigned to the Pennsylvanian–Permian Petersburg batholith identify at least two distinct rock types: foliated metagranitoid gneiss and massive to porphyritic granite. Foliated metagranitoid gneiss of mostly granodioritic composition is geochemically distinct from associated massive and porphyritic granitic rocks....
Karst terrain promotes thermal resiliency in headwater streams
Karmann G. Kessler, Karli M. Rogers, Charles Marshak, Nathaniel P. Hitt
2023, Conference Paper, Proceedings of the West Virginia Academy of Science
The response of stream ecosystems to climate change will depend in part on groundwater processes that reduce the sensitivity of streams to atmospheric conditions. We investigated the thermal sensitivity of streams across a gradient of groundwater inputs defined by karst terrain (carbonate parent materials) in the headwaters of the Potomac...
Evaluating methods for applying fouling attenuation shifts to acoustic backscatter data used in suspended-sediment computations
Zulimar Lucena, Michael T. Lee, Jeffery W. East
2023, Conference Paper, Proceedings of SEDHYD 2023
No abstract available....
Numerical model characterization of sediment transport potentials pre- and post-construction of an artificial island in Foggy Island Bay, Alaska
Cornelis M. Nederhoff, Li H. Erikson, Anita C Engelstad, Stuart Pearson
2023, Conference Paper, The proceedings of the coastal sediments 2023
The anticipated construction of the Liberty Development Island near Prudhoe Bay, Alaska, has created a need to understand how the island may influence sediment transport patterns and deposition on the nearby Boulder Patch ecosystem. This study uses a numerical model to characterize sediment transport pathways in Foggy Island Bay with...
Processes controlling coastal erosion along Cape Cod Bay, MA
John C. Warner, Laura L. Brothers, Emily A. Himmelstoss, Christopher R. Sherwood, Alfredo Aretxabaleta, David S. Foster, Amy S. Farris
2023, Conference Paper, The proceedings of the coastal sediments 2023
Cape Cod Bay, MA, is a semi-enclosed embayment in the northeastern United States, open on the north to the Gulf of Maine. The coastline experiences impacts typically from strong Nor’easter storms that occur in the late fall or winter months, with some sections of this coastline being affected more severely...
Hindcast of Hurricane Sally impacts on barrier islands in the Gulf of Mexico
Donya P. Frank-Gilchrist, Davina Passeri, Matthew V. Bilskie
2023, Conference Paper, The proceedings of the coastal sediments 2023
We performed XBeach and ADIRC+SWAN model simulations of Hurricane Sally over Dauphin and Petit Bois Islands off the Alabama-Mississippi coast to evaluate the morphologic response. Simulated water levels compared well with NOAA tide gauge observations to the east of Dauphin Island with a high model skill of 0.9. In addition,...
Evaluation of hydrologic processes in the eastern Snake River Plain aquifer using uranium and strontium isotopes, Idaho National Laboratory, eastern Idaho
Gordon W. Rattray, James B. Paces
2023, Professional Paper 1837-D
Waste constituents discharged to the eastern Snake River Plain aquifer at the U.S. Department of Energy (DOE) Idaho National Laboratory (INL) pose risks to the water quality of the aquifer. To understand these risks, the U.S. Geological Survey, in cooperation with the DOE, is conducting geochemical studies to better understand...
Determining three-dimensional hydrologic processes in the eastern Snake River Plain aquifer using geochemical mass-balance modeling, Idaho National Laboratory, eastern Idaho, with contributions by Treinen, K.C.
Gordon W. Rattray
2023, Professional Paper 1837-C
Waste constituents discharged to the eastern Snake River Plain aquifer at the U.S. Department of Energy (DOE) Idaho National Laboratory (INL) pose risks to the water quality of the aquifer. To understand these risks, the U.S. Geological Survey, in cooperation with the DOE, used geochemical mass-balance modeling to identify three-dimensional...
Vital rates of a burgeoning population of Humpback Chub in western Grand Canyon
Maria C. Dzul, Charles B. Yackulic, Mariah Aurelia Giardina, David R. Van Haverbeke, Michael D. Yard
2023, Transactions of the American Fisheries Society (152) 443-459
The Colorado River ecosystem has experienced habitat alterations and non-native species invasions, and as a result, many of its native species have experienced extirpations, abundance declines, and range constrictions. Despite these pitfalls, Humpback Chub, Gila cypha, have...
Predicting baseflow recession characteristics at ungauged stream locations using a physical and machine learning approach
Ken Eng, David M. Wolock, Michael Wieczorek
2023, Advances in Water Resources (175)
Prediction of short- (i.e., aquifer is near or at saturated conditions) and long-time (i.e., aquifer is not near or at saturated conditions) baseflow recession characteristics at ungauged stream locations is a current challenge that has been primarily addressed by empirical...
Assessment of riparian vegetation patterns and change downstream from Glen Canyon Dam from 2014 to 2019
Emily C. Palmquist, Bradley J. Butterfield, Barbara E. Ralston
2023, Open-File Report 2023-1026
Changes in riparian vegetation cover and composition occur in relation to flow regime, geomorphic template, and climate, and can have cascading effects on aquatic and terrestrial ecosystems. Tracking such changes over time is therefore an important part of monitoring the condition and trajectory of riparian ecosystems. Maintaining diverse, self-sustaining riparian...
Inferring pathogen presence when sample misclassification and partial observation occur
Evan H. Campbell Grant, Riley O. Mummah, Brittany A. Mosher, Jonah Evans, Graziella Vittoria DiRenzo
2023, Methods in Ecology and Evolution (14) 1299-1311
Surveillance programmes are essential for detecting emerging pathogens and often rely on molecular methods to make inference about the presence of a target disease agent. However, molecular methods rarely detect target DNA perfectly. For example, molecular pathogen detection methods can result in misclassification (i.e. false positives and false negatives)...
Effects of large-scale disturbance on animal space use: Functional responses by greater sage-grouse after megafire
Bryan S. Stevens, Shane Roberts, Courtney J. Conway, Devin K. Engelstead
2023, Ecology and Evolution (13)
Global change has altered the nature of disturbance regimes, and megafire events are increasingly common. Megafires result in immediate changes to habitat available to terrestrial wildlife over broad landscapes, yet we know surprisingly little about how such changes shape space use of sensitive species in habitat that remains. Functional responses...
Hidden in the hills: Phylogeny of the freshwater mussel genus Alasmidonta (Bivalvia: Unionidae) and description of a new species
Nathan V. Whelan, Nathan Johnson, Ashantye’ S. Williams, Michael A. Perkins, Caitlin E. Beaver, Jason W. Mays
2023, Zoological Journal of the Linnean Society (198) 650-676
Inaccurate taxonomy can lead to species in need of conservation being overlooked, which makes revisionary systematics crucially important for imperilled groups. The freshwater mussel genus Alasmidonta is one such group in need of study. Here, we take a multilocus phylogenetic approach to assess species-level taxonomy of Alasmidonta and test monophyly of this genus. Phylogenetic...
The stratigraphy and stratigraphic nomenclature of the Goochland Terrane in the Piedmont Province of east-central Virginia
Robert E. Weems, Eleanora I. Robbins
2023, Stratigraphy (20) 39-58
The Goochland terrane is a structurally isolated crustal block in the eastern Piedmont of Virginia. It is composed of the previously named State Farm Gneiss, Montpelier Anorthosite, Sabot Amphibolite, and Maidens Gneiss, but also includes the Scotchtown Gneiss, Teman Gneiss, and Old Bandana Gneiss which are formally named and defined...
Predicted aquatic exposure effects from a national urban stormwater study
Paul M. Bradley, Kristin M. Romanok, Kelly L. Smalling, Jason R. Masoner, Dana W. Kolpin, Stephanie E. Gordon
2023, Environmental Science: Water Research and Technology (9) 3191-3199
A multi-agency study of 438 organic and 62 inorganic chemicals measured in urban stormwater during 50 total runoff events at 21 sites across the United States demonstrated that stormwater discharges can generate localized, aquatic exposures to extensive contaminant mixtures, including organics suspected to cause adverse aquatic-health effects. The aggregated risks...
Shallow deformation on the Kirby Hills fault, Sacramento–San Joaquin Delta, California (USA), revealed from high-resolution seismic reflection data and coring in a fluvial system
Shannon Klotsko, Jillian Maloney, Janet Watt
2023, Geosphere (19) 748-769
The Sacramento–San Joaquin Delta (Delta) in California (USA) is an important part of the state’s freshwater system and is also a major source of agricultural and natural resources. However, the Delta is traversed by a series of faults that make up the easternmost...
Environmental factors influencing detection efficiency of an acoustic telemetry array and consequences for data interpretation
Michael Long, Adrian Jordaan, Theodore R. Castro-Santos
2023, Animal Biotelemetry (11)
BackgroundAcoustic telemetry is a commonly used technology to monitor animal occupancy and infer movement in aquatic environments. The information that acoustic telemetry provides is vital for spatial planning and management decisions concerning aquatic and coastal environments by characterizing behaviors and habitats such as spawning aggregations, migrations, corridors, and nurseries, among others....
Salinity and selenium yield maps derived from geostatistical modeling in the lower Gunnison River Basin, western Colorado, 1992–2013
Cory A. Williams, Rachel G. Gidley, Michael R. Stevens
2023, Scientific Investigations Report 2023-5013
Salinity is known to affect drinking-water supplies and damage irrigated agricultural lands. Selenium in high concentrations is harmful to fish and other wildlife. Land managers, water providers, and agricultural producers in the lower Gunnison River Basin in western Colorado expend resources mitigating the effects of these constituents. The U.S. Geological...
Visualization of petroleum exploration maturity for six petroleum provinces outside the United States and Canada
Emil D. Attanasi, Philip A. Freeman
2023, Scientific Investigations Report 2023-5010
Outside the United States and Canada, most of the world’s supplies of oil and natural gas are recovered from conventional (or discrete) oil and gas accumulations. This type of hydrocarbon accumulation remains a target for exploration. In this report, exploration and discovery data are used to visually assist in describing...
Population dynamics and harvest management of eastern mallards
Anthony J. Roberts, Jeffrey A. Hostetler, Joshua C. Stiller, Patrick K. Devers, William Link
2023, Journal of Wildlife Management (87)
Managing sustainable harvest of wildlife populations requires regular collection of demographic data and robust estimates of demographic parameters. Estimates can then be used to develop a harvest strategy to guide decision-making. Mallards (Anas platyrhynchos) are an important species in the Atlantic Flyway for many...
