Climatic variations in MIS 11 recorded by stable isotopes and trace elements in a French tufa (La Celle, Seine Valley)

Abstract

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Palaeotemperature estimation in the Holsteinian Interglacial (MIS 11) based on oxygen isotopes of aquatic gastropods from eastern Poland

“…This has also been indicated by pollen-inferred temperatures (Krupiński 1995) and shows that, despite being relatively underutilised, the palaeotemperature estimations based on oxygen isotopes of mollusc shells and thermometry equations appear promising for interglacial episodes (cf., Candy et al 2011). They require further comparisons and high resolution studies, but the palaeolake records from eastern Poland appears of crucial importance for MIS 11 sharing many similarities with other European sequences of that age (Turner 1970;Müller 1974;Meyer 1974;Nitychoruk 1995, 1996;Dabkowski et al 2012;Koutsodendris et al 2012). They show the main palaeoecological trends through the Holsteinian in the central and northwestern part of the continent (Koutsodendris et al 2012(Koutsodendris et al , 2013Candy et al 2014) providing valuable reference data for supra-regional correlations (e.g., Nitychoruk 1995, 1996;Nitychoruk et al 2005;Koutsodendris et al 2012Koutsodendris et al , 2014.…”

“…The unknown and hardly measurable former water isotope composition was substituted by modern isotope data including the modern lake records and the precipitation/evaporation ratios (Leng and Marshall 2004), assuming a similar distribution of air mass sources (Dabkowski et al 2012) and the close palaeoclimatic patterns of MIS 11 and MIS 1 (Koutsodendris et al 2012(Koutsodendris et al , 2013Candy et al 2014).…”

“…As mentioned above, scenario 1 adapts the actual isotope values of precipitation to thermometry equation assuming no significant variations in the dominant source of air masses (cf., Dabkowski et al 2012) and the close analogues between the Holsteinian Interglacial and the Holocene, observed especially in their insolation pattern and the orbital forcing (Koutsodendris et al 2012(Koutsodendris et al , 2013 and references contained therein; Candy et al 2014). To separate more and less probable estimations, no distinct changes in the distribution and composition of precipitation have been also considered at this stage.…”

“…Most of the Holsteinian isotope records are based on sediments rather than on mollusc shells (Beaulieu et al 1994;Müller and Höfle 1994;Nitychoruk et al 2005;Dabkowski et al 2012), and even if the isotope shell composition is considered, no absolute temperature reconstructions are conducted (Nitychoruk 2000). Some oxygen isotope data of V. diluvianus and V. piscinalis shells are available for Ossówka-Hrud and Roskosz Lakes (OS 1/96, HR 1/89, WL 1/97 cores; Nitychoruk 2000), but further comparisons are hampered by the shortcomings in pollen stratigraphy of the malacological samples.…”

“…This is based on the fact that shells precipitate in isotopic equilibrium with the lake water, avoid contamination by allochthonous carbonate, and that the 18 O/ 16 O shell ratios are mainly controlled by temperature and the isotope composition of ambient water (e.g., Fritz and Poplawski 1974;Buchardt and Fritz 1980;Hammarlund and Buchardt 1996;Leng and Marshall 2004;Grossman 2012). One of the approaches is an estimation of the relative air temperature changes, based on the δ 18 O/temperature coefficient which depends on the local precipitation and isotopic fractionation gradients, with the minor influence of evaporative enrichment (Dansgaard 1964;Siegenthaler and Eicher 1986;Hammarlund et al 1999;Ahlberg et al 1996;Ralska-Jasiewiczowa et al 2003;Apolinarska 2009a;Apolinarska and Hammarlund 2009;Dabkowski et al 2012). Despite some generalisations and presupposed simplifications in these reconstructions, they often appear reliable and congruent with palaeobotanical estimations (Hammarlund et al 1999;Apolinarska and Hammarlund 2009;Szymanek 2016;Szymanek et al 2016).…”