Controlling factors on a paleo-lake oxygen isotope record (Yammoûneh, Lebanon) since the Last Glacial Maximum

Develle, Anne‐Lise; Herreros, J.; Vidal, Laurence; Sursock, A.; Gasse, Françoise

doi:10.1016/j.quascirev.2009.12.005

Cited by 55 publications

(72 citation statements)

References 75 publications

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“…Potential explanations for the lower δ 18 O carb are a smaller surface area, which reduces evaporation, or increasingly lower δ 18 O of rainfall from the Atlantic (Zanchetta et al, 2007a) or eastern Mediterranean origin (cf. Develle et al, 2010). Despite the presumed arid conditions, high K and Fe imply enhanced clastic sediment supply and erosion in the catchment, which is probably associated with a less dense vegetation cover in the catchment.…”

Section: A Francke Et Al: a Late Glacial To Holocene Record Of Envimentioning

confidence: 97%

“…In addition, the stable δ 18 O carb during this period suggests that the atmospheric circulation pattern was relatively stable and that there was no distinct shift in the origin of rainfall. Low and stable δ 18 O carb during the mid-Holocene is a common feature in central Mediterranean isotope lake sediment records, although there are some differences in the exact timing (e.g., Zanchetta et al, 2007b;Roberts et al, 2008;Develle et al, 2010;Leng et al, 2012 and references therein).…”

Section: Mid-holocene (7900 To 2800 Cal Yr Bp)mentioning

confidence: 99%

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A Late Glacial to Holocene record of environmental change from Lake Dojran (Macedonia, Greece)

et al. 2013

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A Late Glacial to Holocene sediment sequence (Co1260, 717 cm) from Lake Dojran, located at the boarder of the F.Y.R. of Macedonia and Greece, has been investigated to provide information on climate variability in the Balkan region. A robust age-model was established from 13 radiocarbon ages, and indicates that the base of the sequence was deposited at ca. 12 500 cal yr BP, when the lake-level was low. Variations in sedimentological (H₂O, TOC, CaCO₃, TS, TOC/TN, TOC/TS, grain-size, XRF, δ¹⁸O_carb, δ¹³C_carb, δ¹³C_org) data were linked to hydro-acoustic data and indicate that warmer and more humid climate conditions characterised the remaining period of the Younger Dryas until the beginning of the Holocene. The Holocene exhibits significant environmental variations, including the 8.2 and 4.2 ka cooling events, the Medieval Warm Period and the Little Ice Age. Human induced erosion processes in the catchment of Lake Dojran intensified after 2800 cal yr BP

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Section: A Francke Et Al: a Late Glacial To Holocene Record Of Envimentioning

confidence: 97%

Section: Mid-holocene (7900 To 2800 Cal Yr Bp)mentioning

confidence: 99%

A Late Glacial to Holocene record of environmental change from Lake Dojran (Macedonia, Greece)

et al. 2013

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“…Descriptions of stratigraphical units, analytical methods applied for chronology and sedimentology, and discussions on result interpretations are detailed in Develle (2010) and Develle et al (2010Develle et al ( , 2011. Main results are summarized below.…”

Section: Stratigraphy Chronology and Sedimentary Processesmentioning

confidence: 99%

“…In addition, in the case of biogenic carbonates, species-dependent factors (the so-called "vital effect" and auto-ecology) should be considered. We refer to Develle et al (2010) The carbonate δ 18 O record from Yammoûneh was obtained from ostracod valves present and well preserved in most samples. Analyses were performed on the 4 most abundant taxa (Ilyocypris inermis, I. gibba, Candona neglecta in Unit I only, and Fabaeformiscandona balatonica only present below 1800 cm; none of them occurs in sufficient number in all samples for analyses).…”

Section: The Carbonate Oxygen Isotope Recordmentioning

confidence: 99%

“…This sub-continuous lacustrine/palustrine sequence comes from a small, intra-mountainous karstic basin lying in the poorly known northern Levant (Yammoûneh, Lebanon). Results already published on the sedimentary profile are briefly summarized (chronology and sedimentary processes for the past 250 ka; carbonate oxygen isotopes for the past 21 ka; Develle et al, 2010Develle et al, , 2011. Attention is paid here to new data: pollen-inferred paleovegetation and biogenic carbonate δ 18 O data of the whole sequence.…”

Section: Introductionmentioning

confidence: 99%

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Hydrological variability in the Northern Levant: a 250 ka multi-proxy record from the Yammoûneh (Lebanon) sedimentary sequence

et al. 2011

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Abstract. The Levant is a key region in terms of both long-term hydroclimate dynamics and human cultural evolution. Our understanding of the regional response to glacialinterglacial boundary conditions is limited by uncertainties in proxy-data interpretation and the lack of long-term records from different geographical settings.The present paper provides a 250 ka paleoenvironmental reconstruction based on a multi-proxy approach from northern Levant, derived from a 36 m lacustrine-palustrine sequence cored in the small intra-mountainous karstic Yammoûneh basin from northern Lebanon. We combined time series of sediment properties, paleovegetation, and carbonate oxygen isotopes (δ c ), to yield a comprehensive view of paleohydrologic-paleoclimatic fluctuations in the basin over the two last glacial-interglacial cycles. Integration of all available proxies shows that Interglacial maxima (early-mid MIS 7, MIS 5.5 and early MIS 1) experienced relatively high effective moisture, evidenced by the dominance of forested landscapes (although with different forest types) associated with authigenic carbonate sedimentation in a productive waterbody. Synchronous and steep δ c increases can be reconciled with enhanced mean annual moisture when changes in seasonality are taken into account. During Glacials periods (MIS 2 and MIS 6), open vegetation tends to replace the forests, favouring local erosion and detrital sedimentation.

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The climate variability in northern Levant over the past 20,000 years

Cheng

Sinha

Verheyden

et al. 2015

Geophys. Res. Lett.

170

191

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The Levant constitutes an important region for assessing linkages between climate and societal changes throughout the course of human history. However, large uncertainties remain in our understanding of the region's hydroclimate variability under varying boundary conditions. Here we present a new high‐resolution, precisely dated speleothem oxygen‐carbon isotope and Sr/Ca records, spanning the last 20 ka from Jeita Cave, northern Levant. Our record reveals a higher (lower) precipitation‐evaporation (P‐E) balance during the Last Glacial Maximum and Bølling interstadial (Heinrich stadial 1). The early‐middle Holocene is characterized by a trend toward higher P‐E state, culminating between ~7 and 6 ka. The middle‐late Holocene is characterized by two millennial‐length drier periods during 5.3–4.2 and 2.8–1.4 ka. On submillennial time scale, the northern Levant climate variability is dominated by 500 year periodicity. Comparisons with the regional proxy records suggest persistent out‐of‐phase climate variability between the northern and southern Levant on a wide range of timescales.

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Controlling factors on a paleo-lake oxygen isotope record (Yammoûneh, Lebanon) since the Last Glacial Maximum

Cited by 55 publications

References 75 publications

A Late Glacial to Holocene record of environmental change from Lake Dojran (Macedonia, Greece)

A Late Glacial to Holocene record of environmental change from Lake Dojran (Macedonia, Greece)

Hydrological variability in the Northern Levant: a 250 ka multi-proxy record from the Yammoûneh (Lebanon) sedimentary sequence

The climate variability in northern Levant over the past 20,000 years

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