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Year Published: 2018

Crustal structure and quaternary acceleration of deformation rates in central Washington revealed by stream profile inversion, potential field geophysics, and structural geology of the Yakima folds

Post‐Miocene tectonic uplift along fault‐cored anticlines within central Washington produced the Yakima Fold Province, a region of active NNE‐SSW shortening in the Cascadian backarc. The relative timing and rate of deformation along individual structures is coarsely defined yet imperative for seismic hazard assessment. In this work, we use...

Staisch, Lydia M.; Blakely, Richard J.; Kelsey, Harvey; Styron, Richard; Sherrod, Brian
Staisch, L., Blakely, R., Kelsey, H., Styron, R., & Sherrod, B. (2018). Crustal structure and Quaternary acceleration of deformation rates in central Washington revealed by stream profile inversion, potential field geophysics, and structural geology of the Yakima folds. Tectonics, 37. https://doi.org/10.1029/2017TC004916

Year Published: 2018

Assessment of undiscovered oil and gas resources of the Susitna Basin, southern Alaska, 2017

The U.S. Geological Survey (USGS) recently completed an assessment of undiscovered, technically recoverable oil and gas resources in the Susitna Basin of southern Alaska. Using a geology-based methodology, the USGS estimates that mean undiscovered volumes of about 2 million barrels of oil and nearly 1.7 trillion cubic feet of gas may be found in...

Stanley, Richard G.; Potter, Christopher J.; Lewis, Kristen A.; Lillis, Paul G.; Shah, Anjana K.; Haeussler, Peter J.; Phillips, Jeffrey D.; Valin, Zenon C.; Schenk, Christopher J.; Klett, Timothy R.; Brownfield, Michael E.; Drake, Ronald M.; Finn, Thomas M.; Haines, Seth S.; Higley, Debra K.; Houseknecht, David W.; Le, Phuong A.; Marra, Kristen R.; Mercier, Tracey J.; Leathers-Miller, Heidi M.; Paxton, Stanley T.; Pearson, Ofori N.; Tennyson, Marilyn E.; Woodall, Cheryl A.; Zyrianova, Margarita V.
Stanley, R.G., Potter, C.J., Lewis, K.A., Lillis, P.G., Shah, A.K., Haeussler, P.J., Phillips, J.D., Valin, Z.C., Schenk, C.J., Klett, T.R., Brownfield, M.E., Drake, R.M., Finn, T.M., Haines, S., Higley, D.K., Houseknecht, D.W., Le, P.A., Marra, K.R., Mercier, T.J., Leathers-Miller, H.M., Paxton, S.T., Pearson, O.N., Tennyson, M.E., Woodall, C.A., and Zyrianova, M.V., 2018, Assessment of undiscovered oil and gas resources of the Susitna Basin, southern Alaska, 2017 (ver. 1.1, May 11, 2018): U.S. Geological Survey Fact Sheet 2018–3017, 2 p., https://doi.org/10.3133/fs20183017.

Year Published: 2018

A time-lapse gravity survey of the Coso geothermal field, China Lake Naval Air Weapons Station, California

We have conducted a gravity survey of the Coso geothermal field to continue the time-lapse gravity study of the area initiated in 1991. In this report, we outline a method of processing the gravity data that minimizes the random errors and instrument bias introduced into the data by the Scintrex CG-5 relative gravimeters that were used. After...

Phelps, Geoffrey; Cronkite-Ratcliff, Collin; Blake, Kelly
Phelps, G., Cronkite-Ratcliff, C., and Blake, K., 2018, A time-lapse gravity survey of the Coso geothermal field, China Lake Naval Air Weapons Station, California: U.S. Geological Survey Open-File Report 2018–1053, 25 p., https://doi.org/10.3133/ofr20181053.

Year Published: 2018

New geologic mapping of the northwestern Willamette Valley, Oregon, and its American Viticultural Areas (AVAs)—A foundation for understanding their terroir

A geologic map of the greater Portland, Oregon, metropolitan area is planned that will document the region’s complex geology (currently in review: “Geologic map of the greater Portland metropolitan area and surrounding region, Oregon and Washington,” by Wells, R.E., Haugerud, R.A., Niem, A., Niem, W., Ma, L., Evarts, R., Madin, I., and others)....

Wells, Ray E.; Haugerud, Ralph A.; Niem, Alan; Niem, Wendy; Ma, Lina; Madin, Ian; Evarts, Russell C.
Wells, R.E., Haugerud, R., Niem, A., Niem, W., Ma, L., Madin, I., and Evarts, R., 2018, New geologic mapping of the northwestern Willamette Valley, Oregon, and its American Viticultural Areas (AVAs)—A foundation for understanding their terroir: U.S. Geological Survey Open-File Report 2018–1044, https://doi.org/10.3133/ofr20181044.

Year Published: 2018

Geologic map of the Lower Valley quadrangle, Caribou County, Idaho

The Lower Valley 7.5-minute quadrangle, located in the core of the Southeast Idaho Phosphate Resource Area, includes Mississippian to Triassic marine sedimentary rocks, Pliocene to Pleistocene basalt, and Tertiary to Holocene surficial deposits. The Mississippian to Triassic marine sedimentary sequence was deposited on a shallow shelf between an...

Oberlindacher, H. Peter; Hovland, R. David; Miller, Susan T.; Evans, James G.; Miller, Robert J.
Oberlindacher, H.P., Hovland, R.D., Miller, S.T. , Evans, J.G., and Miller, R.J., 2018, Geologic map of the Lower Valley quadrangle, Caribou County, Idaho: U.S. Geological Survey Scientific Investigations Map 3215, 6 p., 1 sheet, scale 1:24,000, https://doi.org/10.3133/sim3215.

Year Published: 2018

Disentangling the effects of low pH and metal mixture toxicity on macroinvertebrate diversity

One of the primary goals of biological assessment of streams is to identify which of a suite of chemical stressors is limiting their ecological potential. Elevated metal concentrations in streams are often associated with low pH, yet the effects of these two potentially limiting factors of freshwater biodiversity are rarely considered to interact...

Fornaroli, Riccardo; Ippolito, Alessio; Tolkkinen, Mari J.; Mykrä, Heikki; Muotka, Timo; Balistrieri, Laurie S.; Schmidt, Travis S.
Riccardo Fornaroli, Alessio Ippolito, Mari J. Tolkkinen, Heikki Mykrä, Timo Muotka, Laurie S. Balistrieri, Travis S. Schmidt, Disentangling the effects of low pH and metal mixture toxicity on macroinvertebrate diversity, Environmental Pollution, Volume 235, 2018, Pages 889-898, ISSN 0269-7491.

Year Published: 2018

Computational fluid dynamics simulations of the Late Pleistocene Lake Bonneville flood

At approximately 18.0 ka, pluvial Lake Bonneville reached its maximum level. At its northeastern extent it was impounded by alluvium of the Marsh Creek Fan, which breached at some point north of Red Rock Pass (Idaho), leading to one of the largest floods on Earth. About 5320 km3 of water was discharged into the Snake River drainage and...

Abril-Hernández, José M.; Periáñez, Raúl; O'Connor, Jim E.; Garcia-Castellanos, Daniel
Abril-Hernández, J.M., Periáñez, R., O'Connor, J.E., and Garcia-Castellanos, D., 2018, Computational Fluid Dynamics simulations of the Late Pleistocene Lake Bonneville Flood: Journal of Hydrology, v. 561, p. 1-15, https://doi.org/10.1016/j.jhydrol.2018.03.065.

Year Published: 2018

James Dwight Dana and John Strong Newberry in the US Pacific Northwest: The roots of American fluvialism

Recognition of the power of rivers to carve landscapes transformed geology and geomorphology in the late nineteenth century. Wide acceptance of this concept—then known as “fluvialism”—owes to many factors and people, several associated with exploration of western North America. Especially famous are the federal geographic and geologic surveys of...

O'Connor, Jim E.
O'Connor, J.E., 2018, James Dwight Dana and John Strong Newberry in the US Pacific Northwest; the roots of American fluvialism: The Journal of Geology, v. 126, https://doi.org/10.1086/695701.

Year Published: 2018

Middle Pleistocene infill of Hinkley Valley by Mojave River sediment and associated lake sediment: Depositional architecture and deformation by strike-slip faults

Hinkley Valley in the Mojave Desert, near Barstow about 140 km northeast of Los Angeles and midway between Victorville Valley and the Lake Manix basin, contains a thick sedimentary sequence delivered by the Mojave River. Our study of sediment cores drilled in the valley indicates that Hinkley Valley was probably a closed playa basin with stream...

Miller, David M.; Haddon, Elizabeth; Langenheim, Victoria; Cyr, Andrew J.; Wan, Elmira; Walkup, Laura; Starratt, Scott W.
Miller, D.M., Haddon, E.K., Langenheim, V.E., Cyr, A.J., Wan, E., Walkup, L.C., and Starratt, S.W., 2018, Middle Pleistocene infill of Hinkley Valley by Mojave River sediment and associated lake sediment: Depositional architecture and deformation by strike-slip faults: California, Desert Symposium meeting in April of 2018.

Year Published: 2018

Monogenetic origin of Ubehebe Crater maar volcano, Death Valley, California: Paleomagnetic and stratigraphic evidence

Paleomagnetic data for samples collected from outcrops of basaltic spatter at the Ubehebe Crater cluster, Death Valley National Park, California, record a single direction of remanent magnetization indicating that these materials were emplaced during a short duration, monogenetic eruption sequence ~ 2100 years ago. This...

Champion, Duane E.; Cyr, Andrew J.; Fierstein, Judith; Hildreth, Edward
Journal of Volcanology and Geothermal Research Volume 354, 1 April 2018, Pages 67-73 Journal of Volcanology and Geothermal Research Monogenetic origin of Ubehebe Crater maar volcano, Death Valley, California: Paleomagnetic and stratigraphic evidence

Year Published: 2018

A North American Hydroclimate Synthesis (NAHS) of the Common Era

This study presents a synthesis of century-scale hydroclimate variations in North America for the Common Era (last 2000 years) using new age models of previously published multiple proxy-based paleoclimate data. This North American Hydroclimate Synthesis (NAHS) examines regional hydroclimate patterns and related environmental indicators,...

Rodysill, Jessica R. ; Anderson, Lesleigh; Cronin, Thomas M.; Jones, Miriam C.; Thompson, Robert S.; Wahl, David B.; Willard, Debra A.; Addison, Jason A.; Alder, Jay R.; Anderson, Katherine H.; Anderson, Lysanna; Barron, John A.; Bernhardt, Christopher E.; Hostetler, Steven W.; Kehrwald, Natalie M.; Khan, Nicole; Richey, Julie N.; Starratt, Scott W.; Strickland, Laura E.; Toomey, Michael; Treat, Claire C.; Wingard, G. Lynn

Year Published: 2018

Stress concentrations at structural discontinuities in active fault zones in the western United States: Implications for permeability and fluid flow in geothermal fields

Slip can induce concentration of stresses at discontinuities along fault systems. These structural discontinuities, i.e., fault terminations, fault step-overs, intersections, bends, and other fault interaction areas, are known to host fluid flow in ore deposition systems, oil and gas reservoirs, and geothermal systems. We modeled stress transfer...

Siler, Drew L.; Hinz, Nicholas H.; Faulds, James E.