干旱区生态环境知识资源中心(Arid): Pleistocene shifts in Great Basin hydroclimate seasonality govern the formation of lithium-rich paleolake deposits

Arid

DOI	10.1016/j.quascirev.2024.108747
	Pleistocene shifts in Great Basin hydroclimate seasonality govern the formation of lithium-rich paleolake deposits
	Bhattacharya, Tripti; Brennan, Peter R.; Ibarra, Daniel E.; Gagnon, Catherine A.; Butler, Kristina L.; Terrazas, Alexa; Miller, Shaw; Munk, Lee Ann; Boutt, David F.; Feng, Ran; Bullinger, Stephanie N.; Weisbeck, Lucy
通讯作者	Bhattacharya, T
来源期刊	QUATERNARY SCIENCE REVIEWS
ISSN	0277-3791
EISSN	1873-457X
出版年	2024
卷号	335
英文摘要	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.
英文关键词	Plio-Pleistocene Southwestern North America Leaf wax Lithium Compound specific isotopes
类型	Article
语种	英语
开放获取类型	hybrid, Green Submitted
收录类别	SCI-E
WOS记录号	WOS:001258673400001
WOS关键词	NORTH-AMERICAN MONSOON ; ISOTOPIC COMPOSITION ; EQUATORIAL PACIFIC ; ALEUTIAN LOW ; PLIOCENE ; PRECIPITATION ; CLIMATE ; CARBON ; WARM ; RECONSTRUCTIONS
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary
WOS研究方向	Physical Geography ; Geology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/405253
推荐引用方式 GB/T 7714	Bhattacharya, Tripti,Brennan, Peter R.,Ibarra, Daniel E.,et al. Pleistocene shifts in Great Basin hydroclimate seasonality govern the formation of lithium-rich paleolake deposits[J],2024,335.
APA	Bhattacharya, Tripti.,Brennan, Peter R..,Ibarra, Daniel E..,Gagnon, Catherine A..,Butler, Kristina L..,...&Weisbeck, Lucy.(2024).Pleistocene shifts in Great Basin hydroclimate seasonality govern the formation of lithium-rich paleolake deposits.QUATERNARY SCIENCE REVIEWS,335.
MLA	Bhattacharya, Tripti,et al."Pleistocene shifts in Great Basin hydroclimate seasonality govern the formation of lithium-rich paleolake deposits".QUATERNARY SCIENCE REVIEWS 335(2024).