Geosciences and Environmental Change Science Center

Publications

Filter Total Items: 1,255
Publication Thumbnail
Year Published: 2022

Downhill from Austin and Ely to Las Vegas: U-Pb detrital zircon suites from the Eocene–Oligocene Titus Canyon Formation and associated strata, Death Valley, California

In a reconnaissance investigation aimed at interrogating the changing topography and paleogeography of the western United States prior to Basin and Range faulting, a preliminary study made use of U-Pb ages of detrital zircon suites from 16 samples from the Eocene–Oligocene Titus Canyon Formation, its overlying units, and correlatives near Death...

Miller, Elizabeth L.; Raftrey, Mark; Lund Snee, Jens-Erik

Publication Thumbnail
Year Published: 2022

Magmatism, migrating topography, and the transition from Sevier shortening to Basin and Range extension, western United States

The paleogeographic evolution of the western U.S. Great Basin from the Late Cretaceous to the Cenozoic is critical to understanding how the North American Cordillera at this latitude transitioned from Mesozoic shortening to Cenozoic extension. According to a widely applied model, Cenozoic extension was driven by collapse of elevated crust...

Lund Snee, Jens-Erik; Miller, Elizabeth L.

Publication Thumbnail
Year Published: 2022

Tectonic influence on axial-transverse sediment routing in the Denver Basin

Detrital zircon U-Pb and (U-Th)/He ages from latest Cretaceous–Eocene strata of the Denver Basin provide novel insights into evolving sediment sourcing, recycling, and dispersal patterns during deposition in an intracontinental foreland basin. In total, 2464 U-Pb and 78 (U-Th)/He analyses of detrital zircons from 21 sandstone samples are presented...

Sharman, Glenn R; Stockli, Daniel F.; Flaig, Peter; Raynolds, Robert; Dechesne, Marieke; Covault, Jacob A

Publication Thumbnail
Year Published: 2021

Evidence of glacial activity during MIS 4 in the Rocky Mountains, Colorado, USA

The Ziegler Reservoir fossil site near Snowmass Village, Colorado, provides a rare opportunity to examine environmental conditions in the Rocky Mountains during marine isotope stage (MIS) 4 (71–57 ka). Although recognized as a global-scale cold event, MIS 4 is typically absent from Rocky Mountain glacial chronologies because the geologic...

Honke, Jeffrey S.; Pigati, Jeffrey S.; Daniels, J. Michael

Publication Thumbnail
Year Published: 2021

Growth of the wildland-urban interface within and around U.S. National Forests and Grasslands, 1990-2010

The wildland-urban interface (WUI), where housing is in close proximity to or intermingled with wildland vegetation, is widespread throughout the United States, but it is unclear how this type of housing development affects public lands. We used a national dataset to examine WUI distribution and growth (1990–2010) in proximity to National Forests...

Mockrin, Miranda H.; Helmers, Dave; Martinuzzi, Sebastian; Hawbaker, Todd J.; Radeloff, Volker C.

Publication Thumbnail
Year Published: 2021

Concentration-discharge relationships of dissolved rhenium in Alpine catchments reveal its use as a tracer of oxidative weathering

Oxidative weathering of sedimentary rocks plays an important role in the global carbon cycle. Rhenium (Re) has been proposed as a tracer of rock organic carbon (OCpetro) oxidation. However, the sources of Re and its mobilization by hydrological processes remain poorly constrained. Here we examine dissolved Re as a function of water discharge,...

Hilton, Robert; Turowski, Jens M.; Winnick, Matthew; Dellinger, Mathieu; Schleppi, Patrick; Williams, Kenneth H.; Lawrence, Corey; Maher, Katharine; West, Martin; Hayton, Amanda

Publication Thumbnail
Year Published: 2021

How will baseflow respond to climate change in the Upper Colorado River Basin?

Baseflow is critical to sustaining streamflow in the Upper Colorado River Basin. Therefore, effective water resources management requires estimates of baseflow response to climatic changes. This study provides the first estimates of projected baseflow changes from historical (1984 – 2012) to thirty-year periods centered around 2030, 2050, and 2080...

Miller, Olivia L.; Miller, Matthew P.; Longley, Patrick Cullen; Alder, Jay R.; Bearup, Lindsay A.; Pruitt, Tom; Jones, Daniel K.; Putman, Annie Laura; Rumsey, Christine; McKinney, Tim S.

Publication Thumbnail
Year Published: 2021

Rapa Nui (Easter Island) Rano Raraku crater lake basin: Geochemical characterization and implications for the Ahu-Moai Period

Rano Raraku, the crater lake constrained by basaltic tuff that served as the primary quarry used to construct the moai statues on Rapa Nui (Easter Island), has experienced fluctuations in lake level over the past centuries. As one of the only freshwater sources on the island, understanding the present and past geochemical characteristics...

Argiriadis, Elena; Bortolini, Mara; Kehrwald, Natalie; Roman, Marco; Turetta, Clara; Hanif, Shahpara; Erhendi, Evans Osayuki; Ramirez Aliaga, José Miguel; McWethy, David B.; Myrbo, Amy E.; Pauchard, Anibal; Barbante, Carlo; Battistel, Dario

Publication Thumbnail
Year Published: 2021

Lessons learned from development of natural capital accounts in the United States and European Union

The United States and European Union (EU) face common challenges in managing natural capital and balancing conservation and resource use with consumption of other forms of capital. This paper synthesizes findings from 11 individual application papers from a special issue of Ecosystem Services on natural capital accounting (NCA) and their...

Bagstad, Kenneth J.; Carter Ingram, Jane; Shapiro, Carl D.; La Notte, Alessandra; Maes, Joachim; Vallecillo, Sara; Casey, Clyde F.; Glynn, Pierre D.; Heris, Mehdi; Johnson, Justin A.; Lauer, Chris; Matuszak, John; Oleson, Kirsten L. L.; Posner, Stephen M.; Rhodes, Charles R.; Voigt, Brian

Publication Thumbnail
Year Published: 2021

A global ecological classification of coastal segment units to complement marine biodiversity observation network assessments

A new data layer provides Coastal and Marine Ecological Classification Standard (CMECS) labels for global coastal segments at 1 km or shorter resolution. These characteristics are summarized for six US Marine Biodiversity Observation Network (MBON) sites and one MBON Pole to Pole of the Americas site in Argentina. The global coastlines CMECS...

Sayre, Roger; Butler, Kevin; Van Graafeiland, Keith; Breyer, Sean; Wright, Dawn; Frye, Charlie; Karagulle, Deniz; Martin, Madeline T.; Cress, Jill Janene; Allen, Tom; Allee, Rebecca; Parsons, Rost; Nyberg, Bjorn; Costello, Mark; Harris, Peter; Muller-Karger, Frank

Publication Thumbnail
Year Published: 2021

Evidence for humans in North America during the Last Glacial Maximum

Archaeologists and researchers in allied fields have long sought to understand human colonization of North America. When, how, and from where did people migrate, and what were the consequences of their arrival for the established fauna and landscape are enduring questions. Here, we present evidence from excavated surfaces of in situ human...

Bennett, Matthew R.; Bustos, David; Pigati, Jeffrey S.; Springer, Kathleen B.; Urban, Thomas. M.; Holliday, Vance T.; Reynolds, Sally C.; Budka, Marcin; Honke, Jeffrey S.; Hudson, Adam M.; Fenerty, Brendan; Connelly, Clare; Martinez, Patrick J.; Santucci, Vincent L.; Odess, Daniel
Bennett, M.R., Bustos, D., Pigati, J.S., Springer, K.B., Urban, T.M., Holliday, V.T., Reynolds, S.C., Budka, M., Honke, J.S., Hudson, A.M., Fenerty, B., Connelly, C., Martinez, P.J., Santucci, V.L., Odess, D., 2021, Evidence for humans in North America during the Last Glacial Maximum. Science. https://science.org/doi/10.1126/science.abg7586.

Publication Thumbnail
Year Published: 2021

Alpine glacier reveals ecosystem impacts of Europe's prosperity and peril over the last millennium

Information about past ecosystem dynamics and human activities is stored in the ice of Colle Gnifetti glacier in the Swiss Alps. Adverse climatic intervals incurred crop failures and famines and triggered reestablishment of forest vegetation but also societal resilience through innovation. Historical documents and lake sediments record these...

Brugger, Sandra O.; Schwikowski, Margit; Gobet, Erika; Schworer, Christoph; Rohr, Christian; Sigl, Michael; Henne, Stephan; Pfister, Christian; Jenk, Theo M.; Henne, Paul D.; Tinner, Willy