Geosciences and Environmental Change Science Center

Publications

Filter Total Items: 1,223
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Year Published: 2021

Evidence for variable precipitation and discharge from Upper Cretaceous–Paleogene fluvial deposits of the Raton Basin, Colorado–New Mexico, U.S.A.

The Raton Basin of Colorado–New Mexico, USA, is the southeasternmost basin of the Laramide intraforeland province of North America. It hosts a thick succession (4.5 km or 15,000 ft) of Upper Cretaceous to Paleogene marine and continental strata that were deposited in response to the final regression of the Western Interior Seaway and the onset of...

Schwartz, Theresa Maude; Dechesne, Marieke; Zellman, Kristine L.

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Year Published: 2021

Reconstructing paleohydrology in the northwest Great Basin since the last deglaciation using Paisley Caves fish remains (Oregon, U.S.A.)

The arid northwest Great Basin underwent substantial hydroclimate changes in the past 15,000 years, greatly affecting its desert ecosystems and prehistoric people. There are conflicting interpretations of the timing of hydrologic changes in this region, requiring more records to resolve the dominant climatic drivers. The Paisley Caves...

Hudson, Adam M.; Emery-Wetherell, Meaghan M; Lubinski, Patrick M; Butler, Virginia L.; Grimstead, Deanna N; Jenkins, Dennis L

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Year Published: 2021

Aeolian sediments in paleowetland deposits of the Las Vegas Formation

The Las Vegas Formation (LVF) is a well-characterized sequence of groundwater discharge (GWD) deposits exposed in and around the Las Vegas Valley in southern Nevada. Nearly monolithologic bedrock surrounds the valley, which provides an excellent opportunity to test the hypothesis that GWD deposits include an aeolian component. Mineralogical data...

Goldstein, Harland L.; Springer, Kathleen B.; Pigati, Jeffrey S.; Reheis, Marith C.; Skipp, Gary L.

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Year Published: 2021

Oxygen isotopes in terrestrial gastropod shells track Quaternary climate change in the American Southwest

Recent studies have shown the oxygen isotopic composition (δ18O) of modern terrestrial gastropod shells is determined largely by the δ18O of precipitation. This implies that fossil shells could be used to reconstruct the δ18O of paleo-precipitation as long as the isotopic system, including the hydrologic pathways of the local watershed and the...

Rech, Jason A.; Pigati, Jeffrey S.; Springer, Kathleen B.; Bosch, Stephanie; Nekola, Jeffrey C.; Yanes, Yurena

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Year Published: 2021

Using the landsat burned area products to derive fire history relevant for fire management and conservation in the state of Florida, southeastern USA

Development of comprehensive spatially explicit fire occurrence data remains one of the most critical needs for fire managers globally, and especially for conservation across the southeastern United States. Not only are many endangered species and ecosystems in that region reliant on frequent fire, but fire risk analysis, prescribed fire planning...

Teske, Casey; Vanderhoof, Melanie K.; Hawbaker, Todd J.; Noble, Joe; Hires, J. Kevin

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Year Published: 2021

8,000 years of climate, vegetation, fire and land-use dynamics in the thermo-mediterranean vegetation belt of northern Sardinia (Italy)

Knowledge about the vegetation history of Sardinia, the second largest island of the Mediterranean, is scanty. Here, we present a new sedimentary record covering the past ~ 8,000 years from Lago di Baratz, north-west Sardinia. Vegetation and fire history are reconstructed by pollen, spores, macrofossils and charcoal analyses and environmental...

Pedrotta, Tiziana; Gobet, Erika; Schwörer, Christoph; Beffa, Giorgia; Butz, Christoph; Henne, Paul D.; Morales-Molino, César; Pasta, Salvatore; Van Leeuwen, Jacqueline; Vogel, Hendrik; Zwimpfer, Elias; Anselmetti, Flavio; Grosjean, Martin; Tinner, Willy

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Year Published: 2021

Implementation plan for the southern Pacific Border and Sierra-Cascade Mountains provinces

IntroductionThe National Cooperative Geologic Mapping Program (NCGMP) is publishing a strategic plan titled Renewing the National Cooperative Geologic Mapping Program as the Nation’s Authoritative Source for Modern Geologic Knowledge (Brock and others, in press). The plan provides a vision, mission, and goals for the program during the years 2020–...

Langenheim, Victoria E.; Graymer, Russell W.; Powell, Robert E.; Schmidt, Kevin; Sweetkind, Donald S.
Langenheim, V.E., Graymer, R.W., Powell, R.E., Schmidt, K.M., and Sweetkind, D.S., 2021, Implementation plan for the southern Pacific Border and Sierra-Cascade Mountains provinces: U.S. Geological Survey Open-File Report 2021–1012, 11 p., https://doi.org/10.3133/ofr20211012.

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Year Published: 2021

Landscape evolution in eastern Chuckwalla Valley, Riverside County, California

This study investigates sedimentary and geomorphic processes in eastern Chuckwalla Valley, Riverside County, California, a region of arid, basin-and-range terrain where extensive solar-energy development is planned. The objectives of this study were to (1) measure local weather parameters and use them to model aeolian sediment-transport potential...

East, Amy E.; Gray, Harrison J.; Redsteer, Margaret Hiza; Ballmer, Matthew
East, A.E., Gray, H.J., Redsteer, M.H., and Ballmer, M., 2021, Landscape evolution in eastern Chuckwalla Valley, Riverside County, California: U.S. Geological Survey Scientific Investigations Report 2021–5017, 46 p., https://doi.org/10.3133/sir20215017.

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Year Published: 2021

The changes in species composition mediate direct effects of climate change on future fire regimes of boreal forests in northeastern China

Direct effects of climate change (i.e. temperature rise, changes in seasonal precipitation, wind patterns and atmospheric stability) affect fire regimes of boreal forests by altering fire behaviour, fire seasons and fuel moisture. Climate change also alters species composition and fuel characteristics, which subsequently alter fire regimes....

Huang, Chao; He, Hong S.; Liang, Yu; Hawbaker, Todd J.; Henne, Paul D.; Xu, Wenru; Gong, Peng; Zhu, Zhiliang

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Year Published: 2021

Comparing tree-ring based reconstructions of snowpack variability at different scales for the Navajo Nation

Snowpack in the western U.S. is on the decline, largely attributed to increasing temperatures in the region. This is a critical issue for many Native American communities who disproportionately rely on local snow-fed water supplies. In light of a combined ongoing drought and limited climate information for the Navajo Nation, Navajo water...

Brice, Rebecca Lynn; Guiterman, Christopher H.; Woodhouse, Connie A.; McClellan, Carlee; Sheppard, Paul

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Year Published: 2021

Book review: Replacing GDP by 2030: Towards a common language for the well-being and sustainability community, Rutger Hoekstra, Cambridge University Press, Cambridge (2019)

Critiques of gross domestic product (GDP) as the economy's primary measuring stick have emanated from the feminist and ecological economics communities for decades (Kubiszewski et al., 2013) and have grown to include mainstream economists (Stiglitz, Sen, and Fitousi, 2009) and national accountants (Coyle, 2015). To the casual observer, such...

Bagstad, Kenneth J.; Fox, Mairi-Jane