Sequence of events from the onset to the demise of the Last Interglacial: Evaluating strengths and limitations of chronologies used in climatic archives

Govin, Aline; Capron, Émilie; Tzedakis, Polychronis C.; Verheyden, Sophie; Ghaleb, Bassam; Hillaire‐Marcel, Claude; St‐Onge, Guillaume; Stoner, J. S.; Bassinot, Franck; Bazin, Lucie; Blunier, Thomas; Nebout, Nathalie Combourieu; Ouahabi, Anuar El; Genty, Dominique; Gersonde, Rainer; Jimenez-Amat, Patricia; Landais, A.; Martrat, Belén; Masson‐Delmotte, Valérie; Parrenin, Frédéric; Seidenkrantz, Marit‐Solveig; Vereș, Daniel; Waelbroeck, C.; Zahn, Rainer

doi:10.1016/j.quascirev.2015.09.018

Cited by 137 publications

(127 citation statements)

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“…Additionally, Demény et al (2016c) have found direct mineralogical evidences for ACC precipitation at the cave site and determined the ACC-water oxygen isotope fractionation that turned out to be at least 2.4 ± 0.8‰ smaller than the calcite-water value, giving support to the assumptions described above. It is interesting to note that the strongest δ 18 O w shift occurs in the youngest part (<115 ka) that belongs to the cooling period of the last interglacial (Govin et al, 2015). Demény et al (2016a,c) suggested that as ACC is stabilized at low temperature (<10 °C), cooling may induce ACC precipitation at higher proportion, and consequently stronger δ 18 O w changes, in accordance with the present observation.…”

Section: Figsupporting

confidence: 90%

“…The separate age-depth model curves are quite similar (Fig. 2) and show that the stalagmite fulfils the suitability criteria of sufficiently fast and stable growth rate to achieve appropriate resolution (Genty et al, 2013;Govin et al, 2015).…”

Section: Resultsmentioning

confidence: 69%

“…Following the nomenclature suggested by Govin et al (2015), this period can be regarded as the "acme", meaning climate optimum within the interglacial. In the developing phase the δD values are strongly fluctuating from -65 down to -81‰.…”

Section: Figmentioning

confidence: 99%

“…Compared to earlier periods, stalagmites from the last interglacial (LIG) are rather frequent and can be studied in sufficient numbers (Govin et al, 2015). Stable C and O isotope records, for instance, from European caves' carbonate deposits are available from Belgium (Vansteenberge et al, 2016), the Alps (Austria; Meyer et al 2008, Boch et al, 2011Moseley et al 2015), the Massif Central (France; Couchoud et al 2009), and the Apuane Alps (Italy; Drysdale et al, 2005;2007).…”

Section: Introductionmentioning

confidence: 99%

“…Stable C and O isotope records, for instance, from European caves' carbonate deposits are available from Belgium (Vansteenberge et al, 2016), the Alps (Austria; Meyer et al 2008, Boch et al, 2011Moseley et al 2015), the Massif Central (France; Couchoud et al 2009), and the Apuane Alps (Italy; Drysdale et al, 2005;2007). These records have been dated by the U-Th series dating method providing numerical ages, making them valuable for paleoclimate studies on the LIG, although their geochemical compositions have not been evaluated in detail as yet (Govin et al, 2015). Besides conventional carbonate C and O isotope analyses, H and O isotope values of water trapped in the fluid inclusions of stalagmites have gained increasing importance in recent years as technical developments improved sampling resolution, analytical precision and throughput (Vonhof et al, 2006;van Breukelen et al, 2008;Dublyansky and Spötl, 2009;Griffiths et al, 2010;Wainer et al, 2011;Rowe et al, 2012;Arienzo et al, 2013;Ayalon et al, 2013;Affolter et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

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Stable isotope compositions of speleothems from the last interglacial – Spatial patterns of climate fluctuations in Europe

Demény

Kern

Czuppon

et al. 2017

Quaternary Science Reviews

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Highlights Stable isotope compositions of a last interglacial (LIG) stalagmite, Central Europe  A sequence of climate change events during the LIG for European speleothems  Hydrogen isotope data of inclusion water reveal a major event at about 125 ± 2 ka  Temperature and winter precipitation changes around the Mediterranean at 125 ± 2 ka ABSTRACT Studies on the last interglacial (LIG) can provide information on how our environment behaved in a period of slightly higher global temperatures at about 125 ± 4 ka, even if it is not the best analogue for the Holocene. The available LIG climate proxy records are usually better preserved and can be studied at a higher resolution than those of the preceding interglacials, allowing detailed comparisons. This paper presents complex stable hydrogen, carbon and oxygen isotope records obtained for carbonate (δ 13 Baradla data indicate enhanced aridity and seasonality for a part of GS26, with the relative dominance of summer precipitation and Mediterranean moisture contribution. Following the GS26 event, the effect of long-term global cooling becomes dominant in the Baradla isotope records and leads to glacial inception at about 109 ka.

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Section: Figsupporting

confidence: 90%

Section: Resultsmentioning

confidence: 69%

Section: Figmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Stable isotope compositions of speleothems from the last interglacial – Spatial patterns of climate fluctuations in Europe

Demény

Kern

Czuppon

et al. 2017

Quaternary Science Reviews

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Regional and global benthic δ¹⁸O stacks for the last glacial cycle

2016

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Although detailed age models exist for some marine sediment records of the last glacial cycle (0–150 ka), age models for many cores rely on the stratigraphic correlation of benthic δ18O, which measures ice volume and deep ocean temperature change. The large amount of data available for the last glacial cycle offers the opportunity to improve upon previous benthic δ18O compilations, such as the “LR04” global stack. Not only are the age constraints for the LR04 stack now outdated but a single global alignment target neglects regional differences of several thousand years in the timing of benthic δ18O change during glacial terminations. Here we present regional stacks that characterize mean benthic δ18O change for 8 ocean regions and a volume‐weighted global stack of data from 263 cores. Age models for these stacks are based on radiocarbon data from 0 to 40 ka, correlation to a layer‐counted Greenland ice core from 40 to 56 ka, and correlation to radiometrically dated speleothems from 56 to 150 ka. The regional δ18O stacks offer better stratigraphic alignment targets than the LR04 global stack and, furthermore, suggest that the LR04 stack is biased 1–2 kyr too young throughout the Pleistocene. Finally, we compare global and regional benthic δ18O responses with sea level estimates for the last glacial cycle.

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The Role of Uncertainty in Estimating Lead/Lag Relationships in Marine Sedimentary Archives: A Case Study From the Tropical Pacific

et al. 2017

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Understanding the mechanisms behind any changes in the climate system often requires establishing the timing of events imprinted on the geological record. However, these proxy records are prone to large uncertainties, which may preclude meaningful conclusions about the relative timing of events. In this study, we put forth a framework to estimate the uncertainty in phase relationships inferred from marine sedimentary records. The novelty of our method lies in the accounting of the various sources of uncertainty inherent to paleoclimate reconstruction and timing analysis. Specifically, we use a Monte Carlo process allowing sampling of possible realizations of the time series as functions of uncertainties in time, the climate proxy, and the identification of the termination timing. We then apply this technique to 15 published sea surface temperature records from the equatorial Pacific to evaluate whether we observed any significant changes in the termination timing between the east and the west. We find that the uncertainty on the relative timing estimates is on the order of several thousand years and mainly stems from age model uncertainty (90%). However, even small differences in mean termination timings can be detected with a sufficiently large number of samples. Improvements in the dating of sediment records provide an opportunity to reduce uncertainty in studies of this kind.

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Sequence of events from the onset to the demise of the Last Interglacial: Evaluating strengths and limitations of chronologies used in climatic archives

Cited by 137 publications

References 253 publications

Stable isotope compositions of speleothems from the last interglacial – Spatial patterns of climate fluctuations in Europe

Stable isotope compositions of speleothems from the last interglacial – Spatial patterns of climate fluctuations in Europe

Regional and global benthic δ¹⁸O stacks for the last glacial cycle

The Role of Uncertainty in Estimating Lead/Lag Relationships in Marine Sedimentary Archives: A Case Study From the Tropical Pacific

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Sequence of events from the onset to the demise of the Last Interglacial: Evaluating strengths and limitations of chronologies used in climatic archives

Cited by 137 publications

References 253 publications

Stable isotope compositions of speleothems from the last interglacial – Spatial patterns of climate fluctuations in Europe

Stable isotope compositions of speleothems from the last interglacial – Spatial patterns of climate fluctuations in Europe

Regional and global benthic δ18O stacks for the last glacial cycle

The Role of Uncertainty in Estimating Lead/Lag Relationships in Marine Sedimentary Archives: A Case Study From the Tropical Pacific

Contact Info

Product

Resources

About

Regional and global benthic δ¹⁸O stacks for the last glacial cycle