Publications
Publications from the staff of the Geology, Minerals, Energy, and Geophysics Science Center
Filter Total Items: 2536
Impacts of transient critical zone evolution on landslide susceptibility and hazard Across the Utuado batholith, Puerto Rico Impacts of transient critical zone evolution on landslide susceptibility and hazard Across the Utuado batholith, Puerto Rico
Landscapes in humid climates often experience rapid chemical and mechanical weathering that can change groundwater fluxes, drainage pathways, and frictional strength via alterations in subsurface mineral composition and matrix porosity. These changes to hillslope critical zone structure and strength should control landslide susceptibility, size, and failure style. Here we test the impact...
Authors
Jonathan P. Perkins, Mong-Han Huang, Corina Cerovski-Darriau, William H. Schulz, Collin Cronkite-Ratcliff, Kelli Wadsworth Baxstrom, Mason Muir Einbund, Jane Willenbring, Ben Leshchinsky, Samuel Johnstone
Polystyrene microplastics alter the accumulation and elimination dynamics of silver nanoparticles in Daphnia magna Polystyrene microplastics alter the accumulation and elimination dynamics of silver nanoparticles in Daphnia magna
Rationale Microplastics (MPs) can interact with engineered nanomaterials and alter their environmental fate and bioavailability. However, their influence on the bioaccumulation dynamics of silver nanoparticles (AgNPs) in aquatic filter feeders under environmentally relevant conditions remains poorly understood. We hypothesized that polystyrene microplastics (PS-MPs) alter the uptake...
Authors
Sara Kamanmalek, Piper MacDonald, Hannah Hutton, Noor Sheikh, Marie Noele Croteau, Mahbub Alam, Mohammed Baalousha, Niveen Ismail
Evolution of arsenic speciation during thermal treatment simulating wildfire heating in arsenic-rich sediments Evolution of arsenic speciation during thermal treatment simulating wildfire heating in arsenic-rich sediments
Understanding arsenic transformations during wildfires can help better constrain the environmental impacts of increased wildfire intensity, frequency, and burned area. Previous studies have monitored the evolution of metal(loid) speciation at specific time/temperature endpoints, hampering the comprehension of the dynamic transformations of metal(loid)s during wildfires. Here, a novel...
Authors
Mohammed Baalousha, Morgane Desmau, Andrea L. Foster
Widespread landslide activity in an extreme wet season and implications for regional sediment management, eastern San Francisco Bay area, California Widespread landslide activity in an extreme wet season and implications for regional sediment management, eastern San Francisco Bay area, California
Watershed sediment production is expected to increase in a warmer future with more extreme rain, with cascading effects throughout drainage and sediment-transport networks. This study investigated landscape-scale sediment movement in the eastern San Francisco Bay area, California, USA, during the extreme 2016–2017 wet season that brought major rainfall, landslides, and flooding. Mapping...
Authors
Amy E. East, Amy Foxgrover, Skye C. Corbett, Brian D. Collins, Andrew C. Ritchie
Recycling radiogenic osmium by crustal foundering in subduction zones: Evidence from pyroxenite xenoliths in the north Andean arc Recycling radiogenic osmium by crustal foundering in subduction zones: Evidence from pyroxenite xenoliths in the north Andean arc
Removal of mafic-ultramafic lower crust (e.g., via delamination) is fundamental to making andesitic continental crust, yet direct evidence of this process remains elusive. A unique suite of garnet clinopyroxenite and hornblendite (arclogite) xenoliths from the northern volcanic zone of the Andes, erupted to the surface in the mid-Pleistocene, have bulk-rock geochemistry and osmium (Os)...
Authors
Lisa J. Zieman, Alan D. Rooney, Natalia Pardo, Elias Bloch, Kouki Kitajima, John W. Valley, Mauricio Ibañez-Mejia
Quantifying methane emissions from a rich fen with uncrewed aircraft systems in boreal Alaska Quantifying methane emissions from a rich fen with uncrewed aircraft systems in boreal Alaska
Thawing of permafrost in northern latitudes is accelerating, potentially releasing substantial amounts of methane (CH4) as forested permafrost plateaus transition into wetlands. This ecosystem shift alters the carbon exchange between the soil and atmosphere, influencing the permafrost-carbon feedback. Monitoring these changes may require measurement platforms operating across varied...
Authors
J.M. Tomlin, C.W. Edgar, E. Seroki, E.S. Euskirchen, E.S. Kane, M.Y. McPartland, L.T. Iraci, Kristen L. Manies
Regional variations in sea ice and primary productivity in the Bering Sea during Marine Isotope Stage 11 Regional variations in sea ice and primary productivity in the Bering Sea during Marine Isotope Stage 11
Marine Isotope Stage (MIS) 11 (424-374 ka) has long been an analog for Holocene climate, because it is the most recent interglacial period with similar orbital conditions. However, there is significant global and regional variability in the climate response to MIS 11 warmth. Here, we review sediment core records from across the Bering Sea to investigate changes in paleoceanographic...
Authors
Natalie S. Thompson, Beth E. Caissie
The Cascadia Region Earthquake Science Center (CRESCENT): Advancing understanding of Cascadia's earthquake hazards The Cascadia Region Earthquake Science Center (CRESCENT): Advancing understanding of Cascadia's earthquake hazards
The Cascadia Subduction Zone (CSZ) is capable of producing large megathrust earthquakes and tsunamis, posing significant risks to the Pacific Northwest. This paper examines the seismic characteristics of the CSZ, including its offshore coupling, sparse seismicity, and a complex paleoseismic record. While recent advances in geophysical methods and data collection have improved our...
Authors
Diego Melgar, Amanda M. Thomas, Valerie J. Sahakian, Pieter-Ewald Share, Andrew Meigs, Harold Tobin, Lydia M. Staisch, Timothy Melbourne, Jill Elizabeth, Rasheed Ajala, Colin Amos, Loic Bachelot, Scott Bennett, James Biemiller, Brian Boston, Joseph Byrnes, Andy Clifford, Brendan Crowell, Jonathan Robert Delph, Benchun Duan, Eric Dunham, Tina Dura, Hannah Elston, Brittany Erickson, Shannon Fasola, Becky Fildes, Alice-Agnes Gabriel, Alex R. Grant, Alexandra Elise Hatem, Andrea Hawkes, Bin He, Eileen Hemphill-Haley, Brenton W. Hirao, Emilie Hooft, Yihe Huang, Jesse Hutchinson, Noel Jackson, Harvey Kelsey, Zoe Krauss, Ana Ledeczi, Ben Leshchinsky, Yajing Liu, Jack Loveless, Madeleine C. Lucas, William Marfo, Brett W. Maurer, Morgan P. Moschetti, Michael Olsen, Emily Roland, David Schmidt, Ignacio Sepulveda, Brandon Shuck, William J. Stephenson, Ashley Streig, Ian P. Stone, Chih-Hsuan Sung, Daniel Trugman, William S.D. Wilcock, Erin A. Wirth, Robert C. Witter, Emrah Yenier
The geologic history of the Chehalis Forearc Basin, Washington State, USA The geologic history of the Chehalis Forearc Basin, Washington State, USA
The Chehalis basin is located between the Cascade arc and the Coast Range in southwest Washington State. It consists of sedimentary and volcanic rocks deposited throughout the Cenozoic and is underlain by the Siletzia terrane, a thick, large igneous province accreted in the Eocene. Here, we constrain evolution of the Chehalis basin depocenter using isochore maps derived from isostatic...
Authors
Rud L. Moe, John Bershaw, Lydia M. Staisch, Ashley R. Streig
Long-term intermittent connection between the western Snake River Plain and Columbia basin: A two-phased incision history of Hells Canyon Long-term intermittent connection between the western Snake River Plain and Columbia basin: A two-phased incision history of Hells Canyon
For more than a century, researchers have debated the route of the Snake River across the northern Cordillera and U.S. Pacific Northwest, including the associated incision history of Hells Canyon. Here, we use detrital zircon U-Pb provenance analysis of Miocene strata upstream and downstream of Hells Canyon to constrain the evolution in fluvial pathways over time. Downstream of Hells...
Authors
Lydia M. Staisch, Jim E. O'Connor, Charles M. Cannon, Christopher S. Holm-Denoma, Maxwel Fredrick Schwid
Controls on natural hydrogen generation during serpentinization of mantle rocks Controls on natural hydrogen generation during serpentinization of mantle rocks
Mantle rocks undergoing serpentinization can generate significant amounts of natural hydrogen, yet the rates and controlling processes remain poorly understood. Here, we constrain the possible hydrogen generation rates in two distinct mantle rock types, the fertile lherzolites of the Western Pyrenees and the depleted harzburgites of Northern California, to relatively low rates of ~0.1 to...
Authors
Rodolfo Christiansen, Mohamed Sobh, Christian Ostertag-Henning, Guido Gianni, Nicolas Saspiturry, Sebastien Chevrot, Victoria Langenheim, Javier Garcia-Pintado, Gerald Gabriel
Post-fire soil hydrologic response and recovery in northern California (USA) Post-fire soil hydrologic response and recovery in northern California (USA)
Background Wildfires abruptly change landscapes by altering soil properties and vegetation cover. These changes are thought to reduce soil infiltration capacity, making landscapes susceptible to runoff and erosion. However, post-fire soil response is complex and likely varies across locations and time.Aims Here, we aim to understand regional post-fire soil response and recovery by...
Authors
Corina Cerovski-Darriau, Kimberlie Perkins, Courtney Creamer, Jeff P. Prancevic, Jonathan D. Stock