Precise timing of MIS 7 sub-stages from the Austrian Alps

Abstract. Determining the precise timing of glacial terminations and the interglacials that follow is key to addressing questions surrounding future warming. Here, we present a high-precision record of Termination III (TIII), Termination IIIa (TIIIa), the penultimate interglacial (MIS 7), and the penultimate glacial inception (MIS 7/6 transition) from Spannagel Cave in the Austrian Alps. Using state-of-the-art mass spectrometry techniques, we have constructed a uranium-series dated chronology with relative age uncertainties averaging 1.7 ‰ (2σ) during our study period (247 to 191 thousand years before present). Results reveal the onset of TIII at 242.5 ± 0.2 ka and the duration of MIS 7e between 241.8 to 236.7 (±0.6) ka. Depleted δ18O values indicating MIS 7b center at 229.5 ± 2.3 ka. An abrupt shift towards higher δ18O values at 217.1 ± 0.5 ka marks the beginning of TIIIa. Two periods of high δ18O values (greater than −10 ‰) between 215.9–213.3 and 204.3–197.5 (±0.4) ka coincide with interglacial substages MIS 7c and 7a, respectively. Two newly collected stalagmites from Spannagel Cave (SPA146 & 183) provide high-resolution replications of the latter portion of the MIS 7a/6e transition, which occurred between approximately 197.1 and 191.4 (±0.3) ka. The resulting multi-stalagmite timeseries provides important chronological constraints on climate shifts in Europe and the North Atlantic during MIS 7. This study also provides a clear answer to the exact timing of TIIIa, which has been previously debated.

[1]  R. Edwards,et al.  Exceptional warmth and climate instability occurred in the European Alps during the Last Interglacial period , 2020, Communications Earth & Environment.

[2]  C. Spötl,et al.  A long record of MIS 7 and MIS 5 climate and environment from a western Mediterranean speleothem (SW Sardinia, Italy) , 2019, Quaternary Science Reviews.

[3]  P. Reimer,et al.  High-resolution geochemical record of environmental changes during MIS 3 from the northern Alps (Nesseltalgraben, Germany) , 2019, Quaternary Science Reviews.

[4]  Evidence of thermophilisation and elevation-dependent warming during the Last Interglacial in the Italian Alps , 2018, Scientific Reports.

[5]  Diana L. Thatcher,et al.  A stalagmite test of North Atlantic SST and Iberian hydroclimate linkages over the last two glacial cycles , 2017, Climate of the Past.

[6]  R. Edwards,et al.  Abrupt climate changes during Termination III in Southern Europe , 2017, Proceedings of the National Academy of Sciences.

[7]  R. Edwards,et al.  The Asian monsoon over the past 640,000 years and ice age terminations , 2016, Nature.

[8]  V. Brovkin,et al.  Interglacials of the last 800,000 years , 2016 .

[9]  S. Chakraborty,et al.  Atmospheric controls on the precipitation isotopes over the Andaman Islands, Bay of Bengal , 2016, Scientific Reports.

[10]  R. Edwards,et al.  Termination-II interstadial/stadial climate change recorded in two stalagmites from the north European Alps , 2015 .

[11]  M. Leng,et al.  Sedimentological processes and environmental variability at Lake Ohrid (Macedonia, Albania) between 637 ka and the present , 2015 .

[12]  C. Mitterer,et al.  Tracing glacier changes in Austria from the Little Ice Age to the present using a lidar-based high-resolution glacier inventory in Austria , 2015 .

[13]  R. Edwards,et al.  North Atlantic storm track changes during the Last Glacial Maximum recorded by Alpine speleothems , 2015, Nature Communications.

[14]  R. Edwards,et al.  Multi-speleothem record reveals tightly coupled climate between central Europe and Greenland during Marine Isotope Stage 3 , 2014 .

[15]  K. Krklec,et al.  Quantification of the impact of moisture source regions on the oxygen isotope composition of precipitation over Eagle Cave, central Spain , 2014 .

[16]  R. Edwards,et al.  Improvements in 230Th dating, 230Th and 234U half-life values, and U–Th isotopic measurements by multi-collector inductively coupled plasma mass spectrometry , 2013 .

[17]  R. Edwards,et al.  Improvements in 230 Th dating , 230 Th and 234 U half-life values , and U – Th isotopic measurements by multi-collector inductively coupled plasma mass spectrometry , 2013 .

[18]  M. Loutre,et al.  An optimized multi-proxy, multi-site Antarctic ice and gas orbital chronology (AICC2012): 120--800 ka , 2012 .

[19]  M. Huss.  Extrapolating glacier mass balance to the mountain-range scale: the European Alps 1900–2100 , 2012 .

[20]  C. Hillaire‐Marcel,et al.  A 750-kyr detrital-layer stratigraphy for the North Atlantic (IODP Sites U1302-U1303, Orphan Knoll, Labrador Sea) , 2012 .

[21]  R. Edwards,et al.  NALPS: a precisely dated European climate record 120–60 ka , 2011 .

[22]  R. Edwards,et al.  800,000 Years of Abrupt Climate Variability , 2011, Science.

[23]  D. Fleitmann,et al.  Pleistocene water intrusions from the Mediterranean and Caspian seas into the Black Sea , 2011 .

[24]  R. Field.  Observed and modeled controls on precipitation δ18O over Europe: From local temperature to the Northern Annular Mode , 2010 .

[25]  R. L. Edwards,et al.  The Last Glacial Termination , 2010, Science.

[26]  M. McCulloch,et al.  The timing of sea-level high-stands during Marine Isotope Stages 7.5 and 9: constraints from the uranium-series dating of fossil corals from Henderson Island , 2010 .

[27]  M. Ziegler,et al.  The precession phase of the boreal summer monsoon as viewed from the eastern Mediterranean (ODP Site 968) , 2010 .

[28]  C. Spötl,et al.  Paleohydrology of a high-elevation , glacier-influenced karst system in the Central Alps ( Austria ) , 2010 .

[29]  W. Broecker,et al.  Ice Age Terminations , 2009, Science.

[30]  I. Isola,et al.  Evidence for Obliquity Forcing of Glacial Termination II , 2009, Science.

[31]  H. Sodemann,et al.  Seasonal and inter‐annual variability of the moisture sources for Alpine precipitation during 1995–2002 , 2009 .

[32]  K. Lambeck,et al.  Phasing and amplitude of sea-level and climate change during the penultimate interglacial , 2009 .

[33]  D. Scholz,et al.  A terrestrial U/Th-dated stable isotope record of the Penultimate Interglacial , 2008 .

[34]  D. Hodell,et al.  Onset of “Hudson Strait” Heinrich events in the eastern North Atlantic at the end of the middle Pleistocene transition (∼640 ka)? , 2008 .

[35]  K. Roucoux,et al.  Vegetation history of the marine isotope stage 7 interglacial complex at Ioannina, NW Greece , 2008 .

[36]  F. Eynaud,et al.  Interglacial variability (MIS 5 and MIS 7) and dinoflagellate cyst assemblages in the Bay of Biscay (North Atlantic) , 2008 .

[37]  T. Stocker,et al.  High-resolution carbon dioxide concentration record 650,000–800,000 years before present , 2008, Nature.

[38]  C. Spötl,et al.  The demise of the Last Interglacial recorded in isotopically dated speleothems from the Alps , 2008 .

[39]  T. Stocker,et al.  Four Climate Cycles of Recurring Deep and Surface Water Destabilizations on the Iberian Margin , 2007, Science.

[40]  C. Spötl,et al.  Speleothems and paleoglaciers , 2007 .

[41]  M. Pareschi,et al.  Enhanced rainfall in the Western Mediterranean during deposition of sapropel S1: stalagmite evidence from Corchia cave (Central Italy) , 2007 .

[42]  Michele Brunetti,et al.  HISTALP—historical instrumental climatological surface time series of the Greater Alpine Region , 2007 .

[43]  B. Kromer,et al.  Persistent influence of the North Atlantic hydrography on central European winter temperature during the last 9000 years , 2007 .

[44]  C. Spötl,et al.  31. The last and the penultimate interglacial as recorded by speleothems from a climatically sensitive high-elevation cave site in the alps , 2007 .

[45]  Peter Huybers,et al.  Early Pleistocene Glacial Cycles and the Integrated Summer Insolation Forcing , 2006, Science.

[46]  J. Duprat,et al.  Climatic variability of Marine Isotope Stage 7: direct land¿sea¿ice correlation from a multiproxy analysis of a north-western Iberian margin deep-sea core , 2006 .

[47]  David A. Richards,et al.  Chronology and paleoenvironment of Marine Isotope Stage 3 from two high-elevation speleothems, Austrian Alps☆ , 2006 .

[48]  C. Spötl,et al.  High-precision constraints on timing of Alpine warm periods during the middle to late Pleistocene using speleothem growth periods , 2005 .

[49]  C. Spötl,et al.  Reconstruction of temperature in the Central Alps during the past 2000 yr from a δ18O stalagmite record , 2005 .

[50]  S. Goldstein,et al.  Open-System Coral Ages Reveal Persistent Suborbital Sea-Level Cycles , 2005, Science.

[51]  M. Raymo,et al.  A Pliocene‐Pleistocene stack of 57 globally distributed benthic δ18O records , 2005 .

[52]  A. Manginia,et al.  Reconstruction of temperature in the Central Alps during the past 2000 yr from a y 18 O stalagmite record , 2005 .

[53]  N. Shackleton,et al.  The Duration of Forest Stages in Southern Europe and Interglacial Climate Variability , 2004, Science.

[54]  J. Grimalt,et al.  Abrupt Temperature Changes in the Western Mediterranean over the Past 250,000 Years , 2004, Science.

[55]  M. Mudelsee,et al.  Timing and progression of the Last Interglacial derived from a high alpine stalagmite , 2004 .

[56]  C. Spötl,et al.  Speleothems from the High-Alpine Spannagel Cave, Zillertal Alps (Austria) , 2004 .

[57]  M. Bar-Matthews,et al.  Sea-land oxygen isotopic relationships from planktonic foraminifera and speleothems in the Eastern Mediterranean region and their implication for paleorainfall during interglacial intervals , 2003 .

[58]  U. Schotterer,et al.  Observation of isotopes in the water cycle—the Swiss National Network (NISOT) , 2003 .

[59]  J. McManus,et al.  Comparison of changes in vegetation in northeast Greece with records of climate variability on orbital and suborbital frequencies over the last 450 000 years , 2003 .

[60]  C. Spötl,et al.  Stalagmite from the Austrian Alps reveals Dansgaard^Oeschger events during isotope stage 3: Implications for the absolute chronology of Greenland ice cores , 2002 .

[61]  C. Murray-Wallace.  Pleistocene coastal stratigraphy, sea‐level highstands and neotectonism of the southern Australian passive continental margin—a review , 2002 .

[62]  S. B. Moran,et al.  Uranium and thorium isotopic and concentration measurements by magnetic sector inductively coupled plasma mass spectrometry , 2002 .

[63]  E. Bard,et al.  Sea-level during the penultimate interglacial period based on a submerged stalagmite from Argentarola Cave (Italy) , 2002 .

[64]  G. Henderson,et al.  U-Th dating of marine isotope stage 7 in Bahamas slope sediments , 2002 .

[65]  H. Renssen,et al.  The two major warming phases of the last deglaciation at ; 14.7 and ; 11.5 ka cal BP in Europe: climate reconstructions and AGCM experiments , 2001 .

[66]  M. Reille,et al.  A LONG POLLEN RECORD FROM LAC DU BOUCHET, MASSIF CENTRAL, FRANCE: FOR THE PERIOD ca. 325 TO 100 ka BP (OIS 9c to OIS 5e) , 1998 .

[67]  G. Wasserburg,et al.  238U234U230Th232Th systematics and the precise measurement of time over the past 500,000 years , 1987 .

[68]  D. V. Husen.  Die Ostalpen in den Eiszeiten , 1987 .

[69]  André Berger,et al.  Long-term variations of daily insolation and Quaternary climatic changes , 1978 .

[70]  U. Foelsche,et al.  Stable isotope composition of precipitation in Austria , 2022 .

[71]  R. Edwards,et al.  U-234 U _ 230 Th-232 Th systematics and the precise measurement of time over the past 500 , 000 years , 2022 .