Ordovician geology of Alaska
Julie A. Dumoulin, Justin V. Strauss, John Repetski
2022, Geological Society, London, Special Publications (533)
Ordovician rocks, found in northern, east-central, interior and southern Alaska, formed in a variety of depositional and palaeogeographic settings. Shallow- and deep-water strata deposited along the northwestern Laurentian margin occur in east-central Alaska (Yukon River area) and probably correlative rocks crop out to the north in the...
Lava fountain jet noise during the 2018 eruption of fissure 8 of Kīlauea volcano
Julia Gestrich, David Fee, Robin Matoza, John J. Lyons, Hannah R. Dietterich, Valerie Cigala, Ulrich Kueppers, Matthew R. Patrick, Carolyn Parcheta
2022, Frontiers Earth Science Journal (10)
Real-time monitoring is crucial to assess hazards and mitigate risks of sustained volcanic eruptions that last hours to months or more. Sustained eruptions have been shown to produce a low frequency (infrasonic) form of jet noise. We analyze the lava fountaining at fissure 8 during the 2018 Lower East Rift...
Comparative assessment of laboratory-derived thermal maxima of Gila trout (oncorhynchus Gilae) with current stream temperatures
Tyler J. Wallin, Colleen A. Caldwell
2022, Southwestern Naturalist (66) 317-326
Gila trout (Oncorhynchus gilae) represent an iconic species of the American Southwest. The salmonid has survived extensive logging, livestock grazing, and mining, and is currently threatened by climate change, wildfire, and extended drought. Long-term conservation and recovery of the species and its unique lineages rely on stocking and translocation into...
Response of soil respiration to changes in soil temperature and water table level in drained and restored peatlands of the southeastern United States
Erin E. Swails, Marcelo Ardon, Ken Krauss, A.L. Peralta, Ryan E. Emmanuel, A.M. Helton, J.L. Morse, Laurel Gutenberg, Nicole Cormier, D. Shoch, Scott Settlemyer, Eric Soderholm, Brian P. Boutin, Chuck Peoples, Sara Ward
2022, Carbon Balance and Management (17)
Extensive drainage of peatlands in the southeastern United States coastal plain for the purposes of agriculture and timber harvesting has led to large releases of soil carbon as carbon dioxide (CO2) due to enhanced peat decomposition. Growth in mechanisms that provide financial incentives for reducing emissions from land use and...
Applying consequence-driven scenario selection to lifelines
Yolanda C Lin, David J. Wald, Eric M. Thompson, David Lallemant
2022, Conference Paper, Lifelines
We present a new consequence-driven framework for earthquake scenario selection. For emergency managers, utility operators, policy makers, and other stakeholders, a scenario-based seismic risk assessment is often necessary for the purpose of emergency management and planning. In developing a scientifically defensible scenario, stakeholders can simulate a realistic event in order...
Grasshopper species composition differs between prairie dog colonies and undisturbed sites in a sagebrush grassland
Ian Pearse, Courtney J. Duchardt, Lillian Legg, Lauren M. Porensky
2022, Journal of the Kansas Entomological Society (94) 183-198
Grasshoppers are major consumers of plant biomass in grassland and shrubland ecosystems. While often considered generalists, grasshopper species have differing habitat preferences and interactions with other consumers in grasslands. There are conflicting accounts of how prairie dog colonies and differences in vegetation impact grasshopper abundance...
Evidence of active Quaternary deformation on the Great Valley fault system near Winters, northern California
Charles Cashman Trexler, Alexander E. Morelan, Rufus D. Catchings, Mark Goldman, Jack Willard
2022, The Seismic Record (2) 248-259
The Great Valley fault system defines the tectonic boundary between the Coast Ranges and the Central Valley in California, is active throughout the Quaternary, and has been the source of several significant (M > 6) historic earthquakes, including the 1983 M 6.5 Coalinga earthquake and the...
Seismic evidence for magmatic underplating along the Kodiak-Bowie Seamount Chain, Gulf of Alaska
Gail L. Christeson, Sean P.S. Gulick, Maureen A. L. Walton, Ginger Barth
2022, Tectonophysics (845)
Oceanic crust formed at mid-ocean ridges may be later modified by off-ridge magmatism forming seamounts, guyots, and islands. We investigate processes associated with seamount formation in the Gulf of Alaska Seamount Province using two coincident seismic reflection/wide-angle profiles. A north-south profile...
High-density genomic data reveal fine-scale population structure and pronounced islands of adaptive divergence in lake whitefish (Coregonus clupeaformis) from Lake Michigan
Yue Shi, Jared Joseph Homola, Peter T. Euclide, Daniel A. Isermann, David C. Caroffino, Megan V. McPhee
2022, Evolutionary Applications (15) 1776-1791
Understanding patterns of genetic structure and adaptive variation in natural populations is crucial for informing conservation and management. Past genetic research using 11 microsatellite loci identified six genetic stocks of lake whitefish (Coregonus clupeaformis) within Lake Michigan, USA. However, ambiguity in genetic stock assignments suggested those neutral microsatellite markers did...
Geologic field-trip guide to volcanism and its interaction with snow and ice at Mount Rainier, Washington
James W. Vallance, Thomas W. Sisson
2022, Scientific Investigations Report 2017-5022-A
Mount Rainier is the Pacific Northwest’s iconic volcano. At 4,393 meters and situated in the south-central Cascade Range of Washington State, it towers over cities of the Puget Lowland. As the highest summit in the Cascade Range, Mount Rainier hosts 26 glaciers and numerous permanent snow fields covering 87 square...
Groundwater budgets for the Big Lost River Basin, south-central Idaho, 2000–19
Alexis Clark
Lauren M. Zinsser, editor(s)
2022, Scientific Investigations Report 2021-5078-C
The Big Lost River Basin, located in parts of Butte and Custer Counties in south-central Idaho, supports the communities surrounding the cities of Arco, Leslie, Mackay, and Moore and provides for agricultural resources that depend on a sustainable supply of surface water from the Big Lost River and its...
Pore systems and organic petrology of cretaceous Mowry and Niobrara source-rock reservoirs, Powder River Basin, Wyoming, USA
Terri Olson, Brad Michalchuk, Paul C. Hackley, Brett J. Valentine, Jason Parker, Ricardo San Martin
2022, International Journal of Coal Geology (264)
The Powder River Basin (PRB) is a world-class oil province, in large part thanks to contributions from premier source rocks, Cretaceous Mowry and Niobrara shales. Both formations are also unconventional reservoirs. A critical aspect of evaluating production potential and finding sweet spots is the nature of the pore systems in these fine-grained...
Flyway-scale GPS tracking reveals migratory routes and key stopover and non-breeding locations of lesser yellowlegs
Laura Anne McDuffie, Katherine S. Christie, Audrey R. Taylor, Erica Nol, Christian Friis, Christopher M. Harwood, Jennie Rausch, Benoit Laliberte, Callie Gesmundo, James R. Wright, James A. Johnson
2022, Ecology and Evolution: Nature Notes (12)
Many populations of long-distance migrant shorebirds are declining rapidly. Since the 1970s, the lesser yellowlegs (Tringa flavipes) has experienced a pronounced reduction in abundance of ~63%. The potential causes of the species' decline are complex and interrelated. Understanding the timing of migration, seasonal routes, and important...
Invasive plant hitchhikers: Appalachian Trail thru-hiker knowledge and attitudes of invasive plants and Leave No Trace practices
Megan Dolman, Jeffrey L. Marion
2022, Journal of Outdoor Recreation and Tourism (40)
Hiking and backpacking on American National Scenic Trails has increased in popularity in recent years. To encourage responsible and sustainable outdoor recreation on these much-loved trails, direct and indirect management strategies must be employed by managerial agencies. The Leave No Trace (LNT) education program aims to protect natural resources by...
Geologic map of the Mount Blue Sky (formerly Mount Evans) quadrangle, Clear Creek and Park Counties, Colorado
Logan Powell, Asha A. Mahatma, Yvette Kuiper, Chester A. Ruleman
2022, Open-File Report OF-22-11
The Mount Blue Sky (formerly Mount Evans) 7.5’ quadrangle lies in Park and Clear Creek counties, Colorado, about 60 km west of Denver. The highest elevation in the quadrangle is 14,265 ft (4,348 m) at the top of Mount Blue Sky. The lowest is at about 9,200 ft (2,804 m)...
Know what you don't know: Embracing state uncertainty in disease-structured multistate models
Matthijs Hollanders, Andy Royle
2022, Methods in Ecology and Evolution (13) 2827-2837
Hidden Markov models (HMMs) are broadly applicable hierarchical models that derive their utility from separating state processes from observation processes yielding the data. Multistate models such as mark–recapture and dynamic multistate occupancy models are HMMs frequently used in ecology. In their early formulations, states, such as pathogen infection status,...
Bedrock geologic map of the Crown Point quadrangle, Essex County, New York, and Addison County, Vermont
Gregory J. Walsh, Randall C. Orndorff, Ryan J. McAleer
2022, Scientific Investigations Map 3491
The bedrock geology of the 7.5-minute Crown Point quadrangle consists of deformed and metamorphosed Mesoproterozoic gneisses of the Adirondack Highlands unconformably overlain by weakly deformed lower Paleozoic sedimentary rocks of the Champlain Valley. The Mesoproterozoic rocks occur on the eastern edge of the Adirondack Highlands and represent an extension of...
Characterization of the Sevier/Toroweap Fault Zone in Kane County, Utah, using controlled-source audio-frequency magnetotelluric (CSAMT) surveys
Casey J.R. Jones, Michael J. Robinson, Jamie P. Macy
2022, Scientific Investigations Report 2022-5071
The Sevier/Toroweap Fault Zone is a major north-south-striking fault located in northern Arizona and southwestern Utah. In partnership with the National Park Service, the U.S. Geological Survey conducted two geophysical controlled-source audio-frequency magnetotelluric (CSAMT) surveys that transected the Sevier/Toroweap Fault Zone at Clay Flat, Utah, a potential pull-apart basin, west...
Review of harmful algal blooms effects on birds with implications for avian wildlife in the Chesapeake Bay region
Barnett A. Rattner, Catherine E. Wazniak, Julia S. Lankton, Peter C. McGowan, Sergei V. Drovetski, Todd A. Egerton
2022, Harmful Algae (120)
The Chesapeake Bay, along the mid-Atlantic coast of North America, is the largest estuary in the United States and provides critical habitat for wildlife. In contrast to point and non-point source release of pesticides, metals, and industrial, personal care and household use chemicals on biota in this watershed, there has...
Use of high-resolution topobathymetry to assess shoreline topography and potential future development of a slack water harbor near Dardanelle, Arkansas, October 2021
Richard J. Huizinga, Joseph M. Richards, Benjamin C. Rivers
2022, Scientific Investigations Map 3494
The U.S. Army Corps of Engineers (USACE), Southwestern Division, Little Rock District Civil Works program has a mission to maintain cohesion between physical and naturally developed environments. The USACE authorized the development of an off-channel harbor (hereinafter referred to as the “proposed slack water harbor”) along the McClellan-Kerr Arkansas River...
Behavior of potentially toxic elements from stoker-boiler fly ash in Interior Alaska: Paired batch leaching and solid-phase characterization
Kyle P Milke, Kiana Mitchell, Sarah M. Hayes, Carlin J. Green, Jennifer Guerard
2022, Environmental Science and Pollution Research (29) 31059-31074
Despite significant investigation of fly ash spills and mineralogical controls on the release of potentially toxic elements (PTEs) from fly ash, interactions with the surficial environment remain relatively poorly understood. We conducted 90-day batch leaching studies with paired analysis of supernatant and solid-phase mineralogy to...
Lower seismogenic depth model of western U.S. Earthquakes
Yuehua Zeng, Mark D. Petersen, Oliver S. Boyd
2022, Seismological Research Letters (93) 3186-3204
We present a model of the lower seismogenic depth of earthquakes in the western United States (WUS) estimated using the hypocentral depths of events M > 1, a crustal temperature model, and historical earthquake rupture depth models. Locations of earthquakes are from the Advanced National Seismic System Comprehensive Earthquake Catalog from 1980...
Comparing Landsat Dynamic Surface Water Extent to alternative methods of measuring inundation in developing waterbird habitats
John B. Taylor, Jeffery D. Sullivan, Claire S. Teitelbaum, Jan G. Reese, Diann Prosser
2022, Remote Sensing Applications: Society and Environment (28)
This study investigates the applicability of the Landsat Dynamic Surface Water Extent (DSWE) science product for waterbird habitat modeling in multiple non-canopied habitat types. We compare surface water distribution estimates derived from DSWE to two site-specific survey methods: visual surveys and digitized aerial imagery. These site-specific surveys were conducted on...
An evaluation of the reliability of plumage characters for sexing adult Ruddy Turnstones Arenaria interpres morinella during northward passage in eastern North America
Peter J. Fullagar, R. Terry Chesser, Humphrey P. Sitters, Christopher C. Davey, Lawrence J. Niles, Sergei V. Drovetski, M. Nandadevi Cortes-Rodriguez
2022, Wader Study (129) 138-147
We used two datasets to investigate the reliability of plumage for sexing adult Ruddy Turnstones Arenaria interpres of the morinella subspecies during May and early June in Delaware Bay, on the Mid-Atlantic Coast of the United States (39.1202°N, 75.2479°W). We first examined 23 years of data on the capture and recapture of 1,818 individual...
Revised earthquake geology inputs for the central and eastern United States and southeast Canada for the 2023 National Seismic Hazard Model
Jessica Ann Thompson Jobe, Alexandra Elise Hatem, Ryan D. Gold, Christopher DuRoss, Nadine G. Reitman, Richard W. Briggs, Camille Marie Collett
2022, Seismological Research Letters (93) 3100-3120
It has been nearly a decade since updates to seismic and fault sources in the central and eastern United States (CEUS) were last assessed for the 2012 Central and Eastern United States Seismic Source Characterization for nuclear facilities (CEUS-SSCn) and 2014 United States Geological Survey National Seismic Hazard Model (NSHM)...
