Remote sensing and mapping Miocene paleovalleys of the Marble, Bristol, and Old Dad Mountains in the Trilobite and Bristol Mountain Wildernesses, California
David C. Buesch, Janet Harvey
2022, Conference Paper, Volcanoes in the Mojave: 2022 Desert symposium field guide and proceedings
Wilderness areas in the Mojave Desert, California, are remote and rugged terrain, but they contain important geology for understanding faults of the eastern California shear zone (ECSZ), and remote sensing offers techniques that can optimize mapping. The Bristol–Granite Mountain fault zone (BGMFZ) is the easternmost fault of the ECSZ with...
Scenario Planning Around Resource Challenges (SPARC): A management-centered approach to scenario planning for climate adaptation
Alexander Bryan, Carolyn Armstrong Enquist
2022, Conference Paper, Collaboration now for the future: IV conference on the biodiversity and management of the Madrean Archipelago
Scenario planning is a strategy or framework that aids making decisions under uncertainty. Inspired by widespread use in the areas of military and business, recent work has applied the strategy to anticipate the effects of climate change on natural resource management. Most scenario planning efforts identify scenarios based on uncertain...
Physical and geochemical architecture and age of the Pliocene Bicycle Lake basalt, southeastern Fort Irwin, California
David C. Buesch, David M. Miller, Mark E. Stelten
2022, Conference Paper, Volcanoes in the Mojave: 2022 Desert symposium field guide and proceedings
The informally named Bicycle Lake basalt forms a volcanic field in southeastern Fort Irwin, California, disrupted by three east-striking faults and linked cross-faults of the Eastern California Shear Zone, and its distribution provides a framework for assessing volcanic field development, groundwater resources, and fault offsets. Previous geochronologic studies yielded...
On the role of climate in monthly baseflow changes across the continental United States
Jessica R. Ayers, Gabriele Villarini, Keith Schilling, Christopher Jones, Andrea E. Brookfield, Samuel Zipper, William H. Farmer
2022, Journal of Hydrologic Engineering (27)
Baseflow is the portion of streamflow that comes from groundwater and subsurface sources. Although baseflow is essential for sustaining streams during low flow and drought periods, we have little information about how and why it has changed over large regions of the continental United States. The objective...
Fault-influenced incision in western Grand Canyon, Arizona U.S.A.
Ryan S. Crow, Karl Karlstrom, Warren Sharp, Victor Polyak, Yemane Asmerom, Laura Crossey
2022, Conference Paper, Desert Symposium Field Guide and Proceedings
Preliminary interpretation of new and updated incision rates in western Grand Canyon shows the effects of Quaternary faulting, which dampens river incision rates in the footwalls and amplifies them in the hanging walls of normal faults. In the reach between Lava Falls and Diamond Creek in western Grand Canyon, about...
Abrupt quaternary ocean-ice events in the Arctic: Evidence from the ostracode rabilimis
Thomas M. Cronin, Laura Gemery, Baylee M. Olds Olds, Alexa Regnier, Robert Poirier, Sienna Sui
2022, Micropaleontology (68) 233-242
The Arctic Ocean has experienced orbital and millennial-scale climate oscillations over the last 500 kilo-annum (ka) involving massive changes in global sea level and components of the Arctic cryosphere, including sea-ice cover, land-based ice sheets and ice shelves. Although these climate events are only partially understood, micropaleontological studies utilizing...
Visualizing climate change
Adam J. Terando
2022, Ecotone
Humans are profoundly affecting the planet, and human-caused, or anthropogenic, climate change is the most visible manifestation of this today. In the graph above, from the National Oceanic and Atmospheric Administration, trends in atmospheric carbon dioxide (CO2) are shown from the present (at far right) back through several ice age...
Aerial dispersal of Lygodium microphyllum spores within Arthur R. Marshall Loxahatchee National Wildlife Refuge
Alison G. Snow, Laura A. Brandt, Ryan L. Lynch, Erynn M. Call, Scott M. Duke-Sylvester, Don DeAngelis
2022, Florida Scientist (84) 245-251
Native across the Old World tropics from Africa to Southeast Asia and Australia, Lygodium microphyllum (Cav.) R. Br. (Old World Climbing Fern) is one of the most invasive plant species threatening South Florida ecosystems (Rodgers et al. 2014). This invasive fern was first collected as a naturalized plant in South...
Circa 1.50–1.45 Ga metasedimentary rocks in southwestern Laurentia provide distinctive records of Mesoproterozoic regional orogenesis and craton interactions
James V. Jones III, Christopher G. Daniel
2022, GSA Memoirs (220)
The discovery of multiple deformed and metamorphosed sedimentary successions in southwestern Laurentia that have depositional ages between ca. 1.50 and 1.45 Ga marked a turning point in our understanding of the Mesoproterozoic...
New Idria serpentinite protrusion, Diablo Range, California: From upper mantle to the surface
Robert G. Coleman, Jared T. Gooley, Robert T. Gregorory, Stephan A. Graham
2022, American Journal of Science (322) 533-560
The New Idria serpentinite body in the Coast Ranges of California is a diapir that resulted from the interaction of the migrating Mendocino trench-ridge-transform fault triple junction, transpression, metasomatic fluids, and previously subducted oceanic crust and mantle. Northward propagation of the San Andreas fault progressively eliminated...
Depth to water and water quality in groundwater wells in the Ogallala aquifer within the North Plains Groundwater Conservation District, Texas Panhandle, 2019–20, and comparison to 2012–13 conditions
Craig A. Mobley, Patricia B. Ging
2022, Scientific Investigations Report 2022-5026
The Ogallala aquifer is the primary source of water for agricultural and municipal purposes in the Texas Panhandle. Because most of the groundwater in the Texas Panhandle is withdrawn from the Ogallala aquifer, information on the quality of groundwater in the Ogallala aquifer in this part of Texas is useful...
Friend of Phrag: Secondary invasion by European Frog-bit
Taaja Tucker
2022, Newsletter
No abstract available....
Methylmercury stable isotopes: New insights on assessing aquatic food web bioaccumulation in legacy impacted regions
Tylor Rosera, Sarah E. Janssen, Michael T. Tate, Ryan F. Lepak, Jacob M. Ogorek, John F. DeWild, David P. Krabbenhoft, James P. Hurley
2022, ACS ES&T Water (2) 701-709
Through stable isotope measurements of total mercury (HgT), identification of crucial processes and transformations affecting different sources of mercury (Hg) has become possible. However, attempting to use HgT stable isotopes to track bioaccumulation of Hg sources among different food web compartments can be challenging, if not impossible, when tissues have...
Review of past gas Production attempts from subsurface gas hydrate deposits and necessity of long-term production testing
Koji Yamamoto, Ray Boswell, Timothy S. Collett, Scott Dallimore, Hailong Lu
2022, Journal of Energy and Fuels (36) 5047-5062
This paper summarizes the conditions, applied techniques, results, and lessons of major field gas production attempts from gas hydrates in the past and the necessity of longer term production testing with the scale of years to fulfill the gap between the currently available information and the...
Aftershocks preferentially occur in previously active areas
Morgan T. Page, Nicholas van der Elst
2022, The Seismic Record (2) 100-106
The clearest statistical signal in aftershock locations is that most aftershocks occur close to their mainshocks. More precisely, aftershocks are triggered at distances following a power‐law decay in distance (Felzer and Brodsky, 2006). This distance decay kernel is used in epidemic‐type aftershock sequence (ETAS) modeling and...
Temporal relations between the Boulder Batholith and Elkhorn Mountains Volcanics, western Montana: “The Nature of Batholiths” revised
Karen Lund, John N. Aleinikoff
2022, Conference Paper, Proceedings of the Montana Mining and Mineral Symposium 2021
No abstract available. ...
Life history strategies of stream fishes linked to predictors of hydrologic stability
Nathaniel P. Hitt, Andrew P Landsman, Richard L. Raesly
2022, Ecology and Evolution (12)
Life history theory provides a framework to understand environmental change based on species strategies for survival and reproduction under stable, cyclical, or stochastic environmental conditions. We evaluated environmental predictors of fish life history strategies in 20 streams intersecting a national park within the Potomac River basin in...
Identifying monitoring information needs that support the management of fish in large rivers
Timothy D. Counihan, Kristen L. Bouska, Shannon K. Brewer, R. B. Jacobson, Andrew F. Casper, Colin G. Chapman, Ian R. Waite, Kenneth R. Sheehan, Mark Pyron, Elise R. Irwin, Karen Riva-Murray, Alexa McKerrow, Jennifer M. Bayer
2022, Environmental Management (17)
Management actions intended to benefit fish in large rivers can directly or indirectly affect multiple ecosystem components. Without consideration of the effects of management on non-target ecosystem components, unintended consequences may limit management efficacy. Monitoring can help clarify the effects of management actions, including on non-target...
Modeling the dynamics of lahars that originate as landslides on the west side of Mount Rainier, Washington
David L. George, Richard M. Iverson, Charles M. Cannon
2022, Open-File Report 2021-1118
Large lahars pose substantial threats to people and property downstream from Mount Rainier volcano in Washington State. Geologic evidence indicates that these threats exist even during the absence of volcanic activity and that the threats are highest in the densely populated Puyallup and Nisqually River valleys on the west side...
Invertibility aware integration of static and time-series data: An application to lake temperature modeling
Kshitij Tayal, Xiaowei Jia, Rahul Ghosh, Jared Willard, Jordan Read, Vipin Kumar
2022, Conference Paper, Proceedings of the 2022 SIAM International Conference on Data Mining
Accurate predictions of water temperature are the foundation for many decisions and regulations, with direct impacts on water quality, fishery yields, and power production. Building accurate broad-scale models for lake temperature prediction remains challenging in practice due to the variability in the data distribution across different lake systems monitored by...
Ungulate migration in a changing climate—An initial assessment of climate impacts, management priorities, and science needs
Katherine C. Malpeli
2022, Circular 1493
Executive SummaryMigratory behavior among ungulates in the Western United States occurs in response to changing forage quality and quantity, weather patterns, and predation risk. As snow melts and vegetation green-up begins in late spring and early summer, many migratory ungulates leave their winter range and move to higher elevation summer...
Crystal chemistry of thallium in marine ferromanganese deposits
Alain Manceau, Alexandre Simionovici, Nathaniel Findling, Pieter Glatzel, Blanka Detlefs, Anna V Wegorzewski, Kira Mizell, James R. Hein, Andrea Koschinsky
2022, ACS Earth and Space Chemistry (6) 1269-1285
Our understanding of the up to 7 orders of magnitude partitioning of thallium (Tl) between seawater and ferromanganese (FeMn) deposits rests upon two foundations: (1) being able to quantify the Tl(I)/Tl(III) ratio that reflects the extent of the oxidative scavenging of Tl...
Spatial and temporal distribution and habitat selection of native Yellowstone Cutthroat Trout and nonnative Utah Chub
Darcy K. McCarrick, Jeff Dillon, Brett High, Michael Quist
2022, North American Journal of Fisheries Management (42) 939-951
Henrys Lake, Idaho, is a renowned trophy trout fishery that faces an uncertain future following the establishment of Utah Chub (UTC) Gila atraria. Utah Chub were first documented in the lake in 1993 and have become abundant over the past two decades. Little is known...
Scientific results of the Hydrate-01 Stratigraphic Test Well Program, Western Prudhoe Bay Unit, Alaska North Slope
Roy Boswell, Timothy S. Collett, Koji Yamamoto, Norihiro Okinaka, Robert Hunter, Kiyofumi Suzuki, Machiko Tamaki, Jun Yoneda, David Itter, Seth S. Haines, Evgeniy Myshakin, George Moridis
2022, Journal of Energy and Fuels (36) 5167-5184
The United States Department of Energy, the MH21-S Research Consortium of Japan, and the United States Geological Survey are collaborating to enable gas hydrate scientific drilling and extended-duration reservoir response testing on the Alaska North Slope. To feasibly execute such a test, a location is required...
Re-evaluating invasive species in degraded ecosystems: A case study of red-eared slider turtles as partial ecological analogs
Marc Dupuis-Desormeaux, Jeffrey E. Lovich, J. Whitfield Gibbons
2022, Discover Sustainability (3)
Exotic species are often vilified as "bad" without consideration of the potential they have for contributing to ecological functions in degraded ecosystems. The red-eared slider turtle (RES) has been disparaged as one of the worst invasive species. Based on this review, we suggest that RES contribute some ecosystem functions in...
