Kristina L. Butler

Brown University

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Brian K. Horton

The University of Texas at Austin

Andrés Folguera

University of Buenos Aires

Andrés Echaurren

Consejo Nacional de Investigaciones Científicas y Técnicas

Daniel Ibarra

Brown University

David F. Boutt

University of Massachusetts Amherst

LeeAnn Munk

University of Alaska Anchorage

César Navarrete

National University of Patagonia San Juan Bosco

Guido M. Gianni

National University of San Juan

Tripti Bhattacharya

Syracuse University

Alexa Terrazas

University of California, Los Angeles

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Consejo Nacional de Investigaciones Científicas y Técnicas

University of Buenos Aires

Fundación Ciencias Exactas y Naturales

Centro Científico Tecnológico - San Juan

National University of Patagonia San Juan Bosco

National University of San Juan

Brown University

The University of Texas at Austin

Planetary Science Institute

University of Alaska Anchorage

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Pleistocene shifts in Great Basin hydroclimate seasonality govern the formation of lithium-rich paleolake deposits

Quaternary Science Reviews (2024)

Tripti Bhattacharya Peter R. Brennan Daniel Ibarra C. Gagnon Kristina L. Butler

Southwestern North America is currently experiencing a multidecadal megadrought, with severe consequences for water resources. However, significant uncertainty remains about 21st century precipitation changes in this semi-arid region. Paleoclimatic records are essential for both contextualizing current change, and for helping constrain the sensitivity of regional hydroclimate to large-scale global climate. In this paper, we present a new 2.8 Ma to present compound-specific isotopic record from Clayton Valley, the site of a long-lived paleolake in the southern Great Basin. Hydrogen and carbon isotopes from terrestrial plant leaf waxes provide evidence of past shifts in rainfall seasonality as well as ecosystem structure, and help contextualize the formation of this lithium-rich lacustrine basin. Our results suggest that regional hydroclimates underwent a substantial reorganization at the Plio-Pleistocene boundary, especially between 2.6 and 2.0 Ma. In this interval, a reduced latitudinal temperature gradient in the North Pacific likely resulted in a northward shift in storm tracks, and a reduction in winter rainfall over the southern Great Basin. This occurred against a background of increased summer rainfall and a greater accumulation of lithium in the lake basin. Our interpretation is corroborated by a compilation of Plio-Pleistocene north Pacific sea surface temperature records, as well as an isotope-enabled model simulation. Overall, these results suggest that past shifts in rainfall seasonality helped set the stage for the development and dessication of lithium-rich lacustrine deposits.

Seasonality

10.1016/j.quascirev.2024.108747

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Citations (1)

Broken Foreland Basins and Their Connections to Flat-Slab Subduction, Crustal Inheritance, Climate, and Erosional Dynamics

AGUFM (2018)

Brian K. Horton Kristina L. Butler T. Capaldi Sarah W.M. George Lily J. Jackson

Inheritance

Slab

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Pleistocene shifts in Great Basin hydroclimate seasonality govern the formation of lithium-rich paleolake deposits

EarthArXiv (California Digital Library) (2024)

Tripti Bhattacharya Peter R. Brennan Daniel Ibarra Catherine Gagnon Kristina L. Butler

Southwestern North America is currently experiencing a multidecadal megadrought, with severe consequences for water resources. However, significant uncertainty remains about how precipitation will change in the 21st century in this semi-arid region. Paleoclimatic records are essential for both contextualizing current change, and for helping constrain the sensitivity of regional hydroclimate to large-scale global climate. In this paper, we present a new 2.8 Ma late Pliocene to present compound-specific isotopic record from Clayton Valley, the site of a long-lived paleolake in the southern Great Basin. Hydrogen and carbon isotopes from terrestrial plant leaf waxes provide evidence of past shifts in rainfall seasonality as well as ecosystem structure, and help contextualize the formation of this lithium-rich lacustrine basin. Our results suggest that regional hydroclimates underwent a substantial reorganization at the Plio-Pleistocene boundary, especially between 2.6 and 2.0 Ma. In this interval, a reduced latitudinal temperature gradient in the North Pacific likely resulted in a northward shift in storm tracks, and a reduction in winter rainfall over the southern Great Basin. This occurred against a background of increased summer rainfall and a greater accumulation of lithium in the lake basin. Our interpretation is corroborated by a compilation of Plio-Pleistocene north Pacific sea surface temperature records, as well as an isotope-enabled model simulation. Overall, these results suggest that past shifts in rainfall seasonality helped set the stage for the development and dessication of lithium-rich lacustrine deposits.

Seasonality

10.31223/x5d40h

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The fate of the Farallon slab beneath Patagonia and its links to Cenozoic intraplate magmatism, marine transgressions and topographic uplift

Earth-Science Reviews (2020)

César Navarrete Guido M. Gianni Gabriela Isabel Massaferro Kristina L. Butler

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10.1016/j.earscirev.2020.103379

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Citations (33)

LITHIUM SOURCES AND ENRICHMENT MECHANISMS FOR THE LITHIUM-RICH OIL FIELD BRINES OF THEDEVONIAN NISKU, LEDUC, AND SWAN HILLS FORMATIONS