干旱区生态环境知识资源中心(Arid): A 50,000-year record of lake-level variations and overflow from Owens Lake, eastern California, USA

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DOI	10.1016/j.quascirev.2020.106312
	A 50,000-year record of lake-level variations and overflow from Owens Lake, eastern California, USA
	Bacon, Steven N.1; Jayko, Angela S.2; Owen, Lewis A.3; Lindvall, Scott C.4; Rhodes, Edward J.5; Schumer, Rina A.1; Decker, David L.1
通讯作者	Bacon, Steven N.
来源期刊	QUATERNARY SCIENCE REVIEWS
ISSN	0277-3791
出版年	2020
卷号	238
英文摘要	A continuous lake-level curve was constructed for Owens Lake, eastern California by integrating lake-core data and shoreline geomorphology with new wind-wave and sediment entrainment modeling of lake-core sedimentology. This effort enabled refinement of the overflow history and development of a better understanding of the effects of regional and global climate variability on lake levels of the paleo-Owens River system during the last 50,000 years. The elevations of stratigraphic sites, plus lake bottom and spillway positions were corrected for vertical tectonic deformation using a differential fault-block model to estimate the absolute hydrologic change of the watershed-lake system. New results include C-14 dating of mollusk shells in shoreline deposits, plus post-IR-IRSL dating of a suite of five beach ridges and OSL dating of spillway alluvial and deltaic deposits in deep boreholes. Geotechnical data show the overflow area is an entrenched channel that had erodible sills composed of unconsolidated fluvial-deltaic and alluvial sediment at elevations of similar to 1113-1165 m above mean sea level. Owens Lake spilled most of the time at or near minimum sill levels, controlled by a bedrock sill at similar to 1113 m. Nine major transgressions at similar to 40.0, 38.7, 23.3, 19.3, 15.6, 13.8, 12.8, 11.6, and 10.6 ka reached levels similar to 10-45 m above the bedrock sill. Several major regressions at or below the bedrock sill from 36.9 to 28.5 ka, and at similar to 17.8, 12.9, and 10.4-8.8 ka indicate little to no overflow during these times. The latest period of overflow occurred similar to 10-20 m above the bedrock sill from similar to 8.4 to 6.4 ka that was followed by closed basin conditions after similar to 6.4 ka. Previous lake core age-depth models were revised by accounting for sediment compaction and using no reservoir correction for open basin conditions, thereby reducing discrepancies between Owens Lake shoreline and lake-core proxy records. The integrated analysis provides a continuous 50 ka lake-level record of hydroclimate variability along the south-central Sierra Nevada that is consistent with other shoreline and speleothem records in the southwestern U.S. (C) 2020 Elsevier Ltd. All rights reserved.
英文关键词	Late Pleistocene Holocene Owens Lake Searles Lake Sierra Nevada Paleoclimatology Hydroclimatic variability Lake-level reconstruction Shorelines
类型	Article
语种	英语
国家	USA ; England
开放获取类型	Green Accepted, Bronze
收录类别	SCI-E
WOS记录号	WOS:000537559500002
WOS关键词	WESTERN NORTH-AMERICA ; LAST GLACIAL MAXIMUM ; SYNCHRONOUS CLIMATE-CHANGE ; NORTHWESTERN GREAT-BASIN ; SIERRA-NEVADA ; LATE-PLEISTOCENE ; MOJAVE DESERT ; UNITED-STATES ; WALKER LAKE ; SLIP RATES
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary
WOS研究方向	Physical Geography ; Geology
来源机构	United States Geological Survey ; Desert Research Institute
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/319327
作者单位	1.Desert Res Inst, Reno, NV 89512 USA; 2.US Geol Survey, UC White Mt Res Stn, Bishop, CA 93514 USA; 3.North Carolina State Univ, Dept Marine Earth & Atmospher Sci, Raleigh, NC 27695 USA; 4.Lettis Consultants Int Inc, Valencia, CA 91335 USA; 5.Univ Sheffield, Dept Geog, Sheffield, S Yorkshire, England
推荐引用方式 GB/T 7714	Bacon, Steven N.,Jayko, Angela S.,Owen, Lewis A.,et al. A 50,000-year record of lake-level variations and overflow from Owens Lake, eastern California, USA[J]. United States Geological Survey, Desert Research Institute,2020,238.
APA	Bacon, Steven N..,Jayko, Angela S..,Owen, Lewis A..,Lindvall, Scott C..,Rhodes, Edward J..,...&Decker, David L..(2020).A 50,000-year record of lake-level variations and overflow from Owens Lake, eastern California, USA.QUATERNARY SCIENCE REVIEWS,238.
MLA	Bacon, Steven N.,et al."A 50,000-year record of lake-level variations and overflow from Owens Lake, eastern California, USA".QUATERNARY SCIENCE REVIEWS 238(2020).