气候变化领域集成服务门户(CCPortal): Paleoproduction and environmental change at Mono Lake (eastern Sierra Nevada) during the Pleistocene-Holocene transition

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DOI	10.1016/j.palaeo.2019.109565
	Paleoproduction and environmental change at Mono Lake (eastern Sierra Nevada) during the Pleistocene-Holocene transition
	Hodelka B.N.; McGlue M.M.; Zimmerman S.; Ali G.; Tunno I.
发表日期	2020
ISSN	0031-0182
卷号	543
英文摘要	The late Quaternary limnological history of Mono Lake (~16.6–4.3 cal kyr BP), a hydrologically closed basin in the eastern Sierra Nevada (California), is inferred based on a multi-indicator analysis of a long (~10.8 m) composite sediment core constructed from overlapping deepwater piston cores. The composite core, dated by 14C and tephra correlation, shows variations in sedimentology, magnetic susceptibility, elemental geochemistry and stable isotopes through time, consistent with changes in aquatic productivity, hydroclimate, and volcanism. In the late Pleistocene, deepwater stratigraphy was influenced by high-amplitude water-level changes and runoff from a glaciated watershed. In contrast, Mono Lake's elevation was lower in the Early to Middle Holocene; low-amplitude water-level changes, wave reworking of the shoreline, and water-column stratification were important controls on facies during that time. The data suggest that the chief controls on organic facies development in Mono Lake – productivity, preservation, and dilution dynamics – are sensitive to climate changes that influence lake-level elevation, water chemistry, and the position of deltas. The study shows that deepwater sediments from certain locales in Mono Lake are well-preserved, continuous, and can be reliably dated with 14C applied to terrestrial materials. When paired with precisely dated paleoshoreline data, these sediments provide a high-resolution archive of deglacial and Holocene environmental information for the eastern Sierra Nevada. © 2020 Elsevier B.V.
英文关键词	California; Lithostratigraphy; Paleolimnology; Paleoshorelines; Radiocarbon
语种	英语
scopus关键词	deglaciation; environmental change; geochemistry; Holocene; lithostratigraphy; paleoenvironment; paleolimnology; Pleistocene-Holocene boundary; radiocarbon dating; sediment core; watershed; California; Mono Lake; Sierra Nevada; United States
来源期刊	Palaeogeography, Palaeoclimatology, Palaeoecology
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/150586
作者单位	Department of Earth and Environmental Sciences, University of Kentucky, Lexington, KY, United States; Center for Accelerator Mass Spectrometry, Lawrence Livermore National Laboratory, Livermore, CA, United States; Climate Change Institute, University of Maine, Orono, ME, United States; Earth Observatory of Singapore, Singapore
推荐引用方式 GB/T 7714	Hodelka B.N.,McGlue M.M.,Zimmerman S.,et al. Paleoproduction and environmental change at Mono Lake (eastern Sierra Nevada) during the Pleistocene-Holocene transition[J],2020,543.
APA	Hodelka B.N.,McGlue M.M.,Zimmerman S.,Ali G.,&Tunno I..(2020).Paleoproduction and environmental change at Mono Lake (eastern Sierra Nevada) during the Pleistocene-Holocene transition.Palaeogeography, Palaeoclimatology, Palaeoecology,543.
MLA	Hodelka B.N.,et al."Paleoproduction and environmental change at Mono Lake (eastern Sierra Nevada) during the Pleistocene-Holocene transition".Palaeogeography, Palaeoclimatology, Palaeoecology 543(2020).