Reconstruction of MIS 5 climate in the central Levant using a stalagmite from Kanaan Cave, Lebanon - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Climate of the Past Année : 2015

Reconstruction of MIS 5 climate in the central Levant using a stalagmite from Kanaan Cave, Lebanon

C. Nehmé
  • Fonction : Auteur
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  • IdHAL : cnehme
S. Verheyden
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S. Noble
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A. Farrant
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D. Sahy
  • Fonction : Auteur
J. Hellstrom
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J. Delannoy
  • Fonction : Auteur

Résumé

Lying at the transition between the temperate Mediterranean domain and subtropical deserts, the Levant is a key area to study the palaeoclimatic response over glacial-interglacial cycles. This paper presents a precisely dated last interglacial (MIS 5) stalagmite (129-84 ka) from the Kanaan Cave, Lebanon. Variations in growth rate and isotopic records indicate a warm humid phase at the onset of the last interglacial at similar to 129 ka that lasted until similar to 125 ka. A gradual shift in speleothem isotopic composition (125-122 ka) is driven mainly by the delta O-18 source effect of the eastern Mediterranean surface waters during sapropel 5 (S5). The onset of glacial inception began after similar to 122 ka, interrupted by a short wet pulse during the sapropel 4 (S4) event. Low growth rates and enriched oxygen and carbon values until similar to 84 ka indicate a transition to drier conditions during Northern Hemisphere glaciation.

Dates et versions

hal-02011601 , version 1 (08-02-2019)

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C. Nehmé, S. Verheyden, S. Noble, A. Farrant, D. Sahy, et al.. Reconstruction of MIS 5 climate in the central Levant using a stalagmite from Kanaan Cave, Lebanon. Climate of the Past, 2015, 11 (12), pp.1785-1799. ⟨10.5194/cp-11-1785-2015⟩. ⟨hal-02011601⟩
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