Lake Andrei: A Pliocene Pluvial Lake in Eureka Valley, Eastern California

Knott, Jeffrey R.; Wan, Elmira; Deino, Alan L.; Casteel, Mitch; Reheis, Marith C.; Phillips, Fred M.; Walkup, Laura C.; McCarty, Kyle R.; Manoukian, David; Nunez, Ernest

doi:10.1130/abs/2018am-321363

Cited by 3 publications

(7 citation statements)

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“…Pluvial lakes in Death Valley (Lake Manly) (Lowenstein et al, 1999;Forester et al, 2005;Knott et al, 2018), to the south in Searles Valley (Smith et al, 1983;Jannik et al, 1991;Knott et al, 2018), and in Eureka Valley (Lake Andrei) began to form ~3.5-3.4 Ma in the late Pliocene during the cooler, wetter, glacial climate of MIS MG5 (Knott et al, 2019). The Death Valley lake persisted until ~3.30 Ma, while Searles lake persisted through the start of Northern Hemisphere glaciation until about 2.5 Ma.…”

Section: Comparison To Regional Recordsmentioning

confidence: 99%

Paleoclimate controls on lithium enrichment in Great Basin Pliocene-Pleistocene lacustrine clays

Gagnon¹,

Butler²,

Gaviria³

et al. 2023

Preprint

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Terminal lakes are important archives of continental hydroclimate and in some cases contain important economic resources. Here we present an ~3.6 Myr lacustrine carbonate carbon and oxygen stable isotope record from a Great Basin continental drill core. We pair these measurements with bulk lithium concentrations to reveal a relationship between past climate and lithium enrichment in authigenic lacustrine clays. Further, we explore the possible effects of changing seasonality on the isotope record through the use of paired air mass trajectories and modern isotope data. Our findings show the evolution of the basin's moisture balance over million-year timescales, which we attribute to variations in precipitation seasonality as well as fluctuations in the amount of evaporation associated with changes in atmospheric moisture convergence and divergence. We observe a positive correlation between the oxygen isotope values of the lake carbonate and the bulk sediment lithium concentrations, which we argue is indicative of evapoconcentration of the lake environment and subsequent enrichment of the authigenic clays. Our results suggest a link between past hydroclimate changes and the formation of lithium rich authigenic clays feeding high lithium concentrations in this modern brine aquifer system.

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Section: Comparison To Regional Recordsmentioning

confidence: 99%

Paleoclimate controls on lithium enrichment in Great Basin Pliocene-Pleistocene lacustrine clays

Gagnon¹,

Butler²,

Gaviria³

et al. 2023

Preprint

View full text Add to dashboard Cite

show abstract

“…3). Similarly, Knott et al (2019a) showed that the Quaternary lake beds mapped by McKee and Nelson (1967) at location EV (Fig. 2) are also Pliocene sandstone and conglomerate interbedded with the tuff of Zabriskie Wash (3.335 ± 0.002 Ma).…”

Section: Pliocene and Quaternary Fluvial Rocksmentioning

confidence: 73%

“…For this study, we use 0.772 ± 0.008 Ma from Knott et al (2018) as the age of the Bishop ash bed because this latter age determination uses the updated constant data (see methods below). Knott et al (2019a) showed that the lake beds of McKee and Nelson (1967) in northwest Eureka Valley (location EV on Fig. 2) were fluvial sandstone and conglomerate (Fig.…”

Section: Geologic Settingmentioning

confidence: 98%

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Pliocene–Pleistocene hydrology and pluvial lake during Marine Isotope Stages 5a and 4, Deep Springs Valley, western Great Basin, Inyo County, California

et al. 2023

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Deep Springs Valley (DSV) is a hydrologically isolated valley between the White and Inyo mountains that is commonly excluded from regional paleohydrology and paleoclimatology. Previous studies showed that uplift of Deep Springs ridge (informal name) by the Deep Springs fault defeated streams crossing DSV and hydrologically isolated the valley sometime after eruption of the Pleistocene Bishop Tuff (0.772 Ma). Here, we present tephrochronology and clast counts that reaffirms interruption of the Pliocene–Pleistocene hydrology and formation of DSV during the Pleistocene. Paleontology and infrared stimulated luminescence (IRSL) dates indicate a freshwater lake inundated Deep Springs Valley from ca. 83–61 ka or during Late Pleistocene Marine Isotope Stages 5a (MIS 5a; ca. 82 ka peak) and 4 (MIS 4; ca. 71–57 ka). The age of pluvial Deep Springs Lake coincides with pluvial lakes in Owens Valley and Columbus Salt Marsh and documents greater effective precipitation in southwestern North America during MIS 5a and MIS 4. In addition, we hypothesize that Deep Springs Lake was a balanced-fill lake that overflowed into Eureka Valley via the Soldier Pass wind gap during MIS 5a and MIS 4. DSV hydrology has implications for dispersal and endemism of the Deep Springs black toad (Anaxyrus exsul).

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“…The lake stages shown on Fig. 5, adapted from Knott et al (2019), shows the interpreted lake stages for CV and nearby lakes.…”

Section: Comparison To Regional Recordsmentioning

confidence: 99%

Paleoclimate controls on lithium enrichment in Great Basin Pliocene−Pleistocene lacustrine clays

et al. 2023

View full text Add to dashboard Cite

Terminal lakes are important archives of continental hydroclimate and in some cases contain important economic resources. Here, we present an ∼2.9 m.y. lacustrine carbonate carbon and oxygen stable isotope record from a Great Basin continental drill core. We paired these measurements with bulk lithium concentrations to reveal a relationship between past climate and lithium enrichment in authigenic lacustrine clays. Further, we explored the possible effects of changing seasonality on the isotope record through the use of paired air mass trajectories and modern isotope data. Our findings show the evolution of the basin’s moisture balance over million-year time scales, which we attribute to variations in precipitation seasonality as well as fluctuations in the amount of evaporation associated with changes in atmospheric moisture convergence and divergence. We found a positive correlation between the oxygen isotope values of the lake carbonate and the bulk sediment lithium concentrations, which we argue is indicative of evapoconcentration of the lake environment and subsequent enrichment of the authigenic clays. Our results suggest a link between past hydroclimate changes and the formation of lithium-rich authigenic clays feeding high lithium concentrations in this modern brine aquifer system.

show abstract

Lake Andrei: A Pliocene Pluvial Lake in Eureka Valley, Eastern California

Cited by 3 publications

References 0 publications

Paleoclimate controls on lithium enrichment in Great Basin Pliocene-Pleistocene lacustrine clays

Paleoclimate controls on lithium enrichment in Great Basin Pliocene-Pleistocene lacustrine clays

Pliocene–Pleistocene hydrology and pluvial lake during Marine Isotope Stages 5a and 4, Deep Springs Valley, western Great Basin, Inyo County, California

Paleoclimate controls on lithium enrichment in Great Basin Pliocene−Pleistocene lacustrine clays

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