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  Implications of submonthly oxygen and carbon isotope variations in late PleistoceneMelanopsisshells for regional and local hydroclimate in the upper Jordan River valley

Rice, A., Bunin, E., Schröder [Plessen], B., Sharon, G., Mischke, S. (2023): Implications of submonthly oxygen and carbon isotope variations in late PleistoceneMelanopsisshells for regional and local hydroclimate in the upper Jordan River valley. - Quaternary Research, 115, 146-159.
https://doi.org/10.1017/qua.2023.25

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 Creators:
Rice, Addison1, Author
Bunin, Elizabeth1, Author
Schröder [Plessen], Birgit2, Author              
Sharon, Gonen1, Author
Mischke, Steffen1, Author
Affiliations:
1External Organizations, ou_persistent22              
24.3 Climate Dynamics and Landscape Evolution, 4.0 Geosystems, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum, ou_146046              

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Free keywords: Seasonality Sclerochronology Last glacial maximum Epipaleolithic Levant Hula Basin
 Abstract: Many water-stressed regions of the globe have a highly seasonal precipitation regime. However, seasonality in the past and under changing climates is little studied. Submonthly records of sclerochronological δ18O and δ13C values of Melanopsis shells from the Jordan River Dureijat archaeological site (JRD) in the upper Jordan River valley presented here document the hydrology of paleo-Lake Hula. These records were assessed for changes in seasonal hydrology in the lake and compared with modern shells collected from present-day waterbodies in northern Israel and with models of δ18Oshell. Results from shells in sediments dating from the last glacial maximum (LGM) to the Bølling-Allerød imply changes in waterbody size that qualitatively parallel changes in the late Pleistocene Lake Lisan levels; Hula Lake was well buffered when Lake Lisan stood at a high stand and poorly buffered when water levels were lower. Furthermore, data from shells dated to the LGM suggest inflowing water with lower δ18O values than local rainfall, providing evidence for a greater proportion of snow in the catchment than today. Reconstruction of water δ18O and mixing-model calculations suggest that snowmelt contribution to spring water during the LGM may have been more than twice the amount in the modern-day catchment.

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 Dates: 2023-06-202023
 Publication Status: Finally published
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 Identifiers: DOI: 10.1017/qua.2023.25
GFZPOF: p4 T2 Ocean and Cryosphere
OATYPE: Hybrid Open Access
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Title: Quaternary Research
Source Genre: Journal, SCI, Scopus
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Pages: - Volume / Issue: 115 Sequence Number: - Start / End Page: 146 - 159 Identifier: CoNE: https://gfzpublic.gfz-potsdam.de/cone/journals/resource/journals417
Publisher: Cambridge University Press