The 4.2 ka event in the central Mediterranean: new data from a Corchia speleothem (Apuan Alps, central Italy)

Abstract. We present new data on the 4.2 ka event in the central Mediterranean from Corchia Cave (Tuscany, central Italy) stalagmite CC27. The stalagmite was analyzed for stable isotopes (δ13C and δ18O) and trace elements (Mg, U, P, Y), with all proxies showing a coherent phase of reduced cave recharge between ca. 4.5 and 4.1 ka BP. Based on the current climatological data on cyclogenesis, the reduction in cave recharge is considered to be associated with the weakening of the cyclone center located in the Gulf of Genoa in response to reduced advection of air masses from the Atlantic during winter. These conditions, which closely resemble a positive North Atlantic Oscillation (NAO) type of configuration, are associated with cooler and wetter summers with reduced sea warming, which reduced the western Mediterranean evaporation during autumn–early winter, further reducing precipitation.

[1]  C. Hjort,et al.  Quaternary International , 2021 .

[2]  R. Sulpizio,et al.  Tephrostratigraphy of paleoclimatic archives in central Mediterranean during the Bronze Age , 2019, Quaternary International.

[3]  I. Isola,et al.  The 4.2 ka BP Event in the Mediterranean region: an overview , 2018, Climate of the Past.

[4]  J. Grimalt,et al.  Enhanced climate instability in the North Atlantic and southern Europe during the Last Interglacial , 2018, Nature Communications.

[5]  F. Liang,et al.  The timing, two-pulsed nature, and variable climatic expression of the 4.2 ka event: A review and new high-resolution stalagmite data from Namibia , 2018 .

[6]  I. Isola,et al.  A MIS 9/MIS 8 speleothem record of hydrological variability from Macedonia (F.Y.R.O.M.) , 2018 .

[7]  I. Isola,et al.  Wavelet analysis of δ18O and δ13C time-series from an Holocene speleothem record from Corchia Cave (central Italy): insights for the recurrence of dry-wet periods in the Central Mediterraneans , 2018 .

[8]  K. Holmgren,et al.  Late Bronze Age climate change and the destruction of the Mycenaean Palace of Nestor at Pylos , 2017, PloS one.

[9]  G. Zanchetta,et al.  Middle Pleistocene (MIS 14) environmental conditions in the central Mediterranean derived from terrestrial molluscs and carbonate stable isotopes from Sulmona Basin (Italy) , 2017 .

[10]  Q. Hua,et al.  Stalagmite carbon isotopes and dead carbon proportion (DCP) in a near-closed-system situation: An interplay between sulphuric and carbonic acid dissolution , 2017 .

[11]  P. Galli,et al.  A Last Interglacial record of environmental changes from the Sulmona Basin (central Italy) , 2017 .

[12]  M. Lezzerini,et al.  The loess deposits of Buca Dei Corvi section (Central Italy): Revisited , 2017 .

[13]  F. Joos,et al.  Warm Mediterranean mid-Holocene summers inferred from fossil midge assemblages , 2017 .

[14]  N. Combourieu-Nebout,et al.  High-resolution Holocene climate and hydrological variability from two major Mediterranean deltas (Nile and Rhone) , 2017 .

[15]  H. Weiss.  Global megadrought, societal collapse and resilience at 4.2-3.9 ka BP across the Mediterranean and west Asia , 2016 .

[16]  E. Dotsika,et al.  Environmental variability between the penultimate deglaciation and the mid Eemian: Insights from Tana che Urla (central Italy) speleothem trace element record , 2016 .

[17]  R. Drysdale,et al.  “Cryptic” diagenesis and its implications for speleothem geochronologies , 2016 .

[18]  Neil Roberts,et al.  2200 BC-A climatic breakdown as a cause for the collapse of the Old World? , 2016, Antiquity.

[19]  I. Isola,et al.  The so-called "4.2 event" in the central mediterranean and its climatic teleconnections , 2016 .

[20]  J. Grimalt,et al.  Sea surface temperature variability in the central-western Mediterranean Sea during the last 2700 years: a multi-proxy and multi-record approach , 2015 .

[21]  M. Bassetti,et al.  Holocene climate variability in the North-Western Mediterranean Sea (Gulf of Lions) , 2015 .

[22]  D. Heslop,et al.  Bipolar seesaw control on last interglacial sea level , 2015, Nature.

[23]  R. Zahn,et al.  Offset timing of climate oscillations during the last two glacial‐interglacial transitions connected with large‐scale freshwater perturbation , 2015 .

[24]  A. Ribolini,et al.  Climatic signature of two mid–late Holocene fluvial incisions formed under sea-level highstand conditions (Pisa coastal plain, NW Tuscany, Italy) , 2015, Palaeogeography, Palaeoclimatology, Palaeoecology.

[25]  E. Rohling,et al.  Mediterranean climate and oceanography, and the periodic development of anoxic events (sapropels) , 2015 .

[26]  N. Roberts,et al.  From forest to farmland: pollen‐inferred land cover change across Europe using the pseudobiomization approach , 2015, Global change biology.

[27]  P. Galli,et al.  Hydrological variability over the Apennines during the Early Last Glacial precession minimum, as revealed by a stable isotope record from Sulmona basin, Central Italy , 2015 .

[28]  E. Black,et al.  Extratropical cyclones and the projected decline of winter Mediterranean precipitation in the CMIP5 models , 2015, Climate Dynamics.

[29]  I. Isola,et al.  Coeval dry events in the central and eastern Mediterranean basin at 5.2 and 5.6 ka recorded in Corchia (Italy) and Soreq caves (Israel) speleothems , 2014 .

[30]  Rainer Zahn,et al.  Similarities and dissimilarities between the last two deglaciations and interglaciations in the North Atlantic region , 2014 .

[31]  I. Isola,et al.  A continuous stable isotope record from the penultimate glacial maximum to the Last Interglacial (159–121 ka) from Tana Che Urla Cave (Apuan Alps, central Italy) , 2014, Quaternary Research.

[32]  P. Borrelli,et al.  Geoarchaeological and historical implications of late Holocene landscape development in the Carseolani Mountains, central Apennines, Italy , 2014 .

[33]  C. Giraudi.  Coarse sediments in Northern Apennine peat bogs and lakes: New data for the record of Holocene alluvial phases in peninsular Italy , 2014 .

[34]  I. Isola,et al.  Lateglacial to Holocene trace element record (Ba, Mg, Sr) from Corchia Cave (Apuan Alps, central Italy): paleoenvironmental implications , 2014 .

[35]  D. Hodell,et al.  Abrupt weakening of the summer monsoon in northwest India ∼4100 yr ago , 2014 .

[36]  F. Welc,et al.  Climate change at the end of the Old Kingdom in Egypt around 4200 BP: New geoarchaeological evidence , 2014 .

[37]  G. Zanchetta,et al.  Oxygen and carbon isotopic composition of modern terrestrial gastropod shells from Lipari Island, Aeolian Archipelago (Sicily) , 2014 .

[38]  Christopher C. Day,et al.  Controls on trace-element partitioning in cave-analogue calcite , 2013 .

[39]  G. Zanchetta,et al.  The transition from natural to anthropogenic-dominated environmental change in Italy and the surrounding regions since the Neolithic: An introduction , 2013 .

[40]  P. Lionello,et al.  Synoptic climatology of winter intense precipitation events along the Mediterranean coasts , 2013 .

[41]  N. Combourieu-Nebout,et al.  Contrasting patterns of climatic changes during the Holocene across the Italian Peninsula reconstructed from pollen data , 2013 .

[42]  M. Debret,et al.  Mid-Holocene emergence of a low-frequency millennial oscillation in western Mediterranean climate: Implications for past dynamics of the North Atlantic atmospheric westerlies , 2013 .

[43]  N. Anderson,et al.  Variability of the North Atlantic Oscillation over the past 5,200 years , 2012 .

[44]  R. Drysdale,et al.  Constraining the onset of the Holocene “Neoglacial” over the central Italy using tephra layers , 2012, Quaternary Research.

[45]  A. Baker,et al.  Speleothem Science: From Process to Past Environments , 2012 .

[46]  P. Sabatier,et al.  7000 years of paleostorm activity in the NW Mediterranean Sea in response to Holocene climate events , 2012, Quaternary Research.

[47]  S. Planton,et al.  Introduction: Mediterranean climate-background information , 2012 .

[48]  H. Douville,et al.  West African Monsoon influence on the summer Euro‐Atlantic circulation , 2011 .

[49]  M. Caldara,et al.  Holocene geomorphic activity related to climatic change and human impact in Basilicata, Southern Italy , 2011 .

[50]  Sergio M. Vicente-Serrano,et al.  Effects of the North Atlantic Oscillation (NAO) on combined temperature and precipitation winter modes in the Mediterranean mountains: Observed relationships and projections for the 21st century , 2011 .

[51]  I. Isola,et al.  Hypogean microclimatology and hydrogology of the 800-900 m asl level in the Monte Corchia cave (Tuscany, Italy): preliminary considerations and implications for paleoclimatological studies , 2011 .

[52]  Daniel J. Sinclair,et al.  Two mathematical models of Mg and Sr partitioning into solution during incongruent calcite dissolution: Implications for dripwater and speleothem studies , 2011 .

[53]  I. Isola,et al.  Stratigraphic evidence for a “pluvial phase” between ca 8200–7100 ka from Renella cave (Central Italy) , 2011 .

[54]  M. Griffiths,et al.  Evidence for Holocene changes in Australian–Indonesian monsoon rainfall from stalagmite trace element and stable isotope ratios , 2010 .

[55]  Anna Maria,et al.  L' Italia nell'età del bronzo e del ferro , 2010 .

[56]  L. Gimeno,et al.  A Lagrangian identification of the main moisture sources and sinks affecting the Mediterranean area , 2010 .

[57]  By W. Dansga,et al.  Stable isotopes in precipitation , 2010 .

[58]  N. Graham,et al.  Persistent Positive North Atlantic Oscillation Mode Dominated the Medieval Climate Anomaly , 2009, Science.

[59]  I. Fairchild,et al.  Trace elements in speleothems as recorders of environmental change , 2009 .

[60]  I. Isola,et al.  The environmental features of the Monte Corchia cave system (Apuan Alps, central Italy) and their effects on speleothem growth , 2008 .

[61]  A. Foley,et al.  Spatial variability in the European winter precipitation δ18O‐NAO relationship: Implications for reconstructing NAO‐mode climate variability in the Holocene , 2008 .

[62]  J. Hellstrom,et al.  Isotopic and Elemental Imaging of Geological Materials by Laser Ablation Inductively Coupled Plasma‐Mass Spectrometry , 2007 .

[63]  F. Martini,et al.  Stable isotope composition of Late Glacial land snail shells from Grotta del Romito (Southern Italy): Palaeoclimatic implications , 2007 .

[64]  R. Drysdale,et al.  The hydrochemical response of cave drip waters to sub-annual and inter-annual climate variability, Wombeyan Caves, SE Australia , 2007 .

[65]  J. Susini,et al.  Trace element distribution in annual stalagmite laminae mapped by micrometer-resolution X-ray fluorescence : Implications for incorporation of environmentally significant species , 2007 .

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

[67]  J. Hellstrom.  U–Th dating of speleothems with high initial 230Th using stratigraphical constraint , 2006 .

[68]  P. Iacumin,et al.  Isotopic composition of precipitation in Northern Italy: Reverse effect of anomalous climatic events , 2006 .

[69]  Andy Baker,et al.  University of Birmingham Modification and preservation of environmental signals in speleothems , 2005 .

[70]  Ian Cartwright,et al.  Late Holocene drought responsible for the collapse of Old World civilizations is recorded in an Italian cave flowstone , 2006 .

[71]  Xavier Rodó,et al.  Chapter 2 Relations between climate variability in the Mediterranean region and the tropics: ENSO, South Asian and African monsoons, hurricanes and Saharan dust , 2006 .

[72]  Patrick J. Mickler,et al.  Large kinetic isotope effects in modern speleothems , 2006 .

[73]  G. Deves,et al.  High-resolution mapping of uranium and other trace elements in recrystallized aragonite–calcite speleothems from caves in the Pyrenees (France): Implication for U-series dating , 2005 .

[74]  C. Giraudi.  Middle to Late Holocene glacial variations, periglacial processes and alluvial sedimentation on the higher Apennine massifs (Italy) , 2005, Quaternary Research.

[75]  K. Grönvold,et al.  Holocene loess deposition in Iceland: Evidence for millennial-scale atmosphere-ocean coupling in the North Atlantic , 2005 .

[76]  Isabel F. Trigo,et al.  Cyclones in the Mediterranean Region: Climatology and Effects on the Environment , 2005 .

[77]  C. Giraudi.  The Apennine glaciations in Italy , 2004 .

[78]  I. Isola,et al.  Palaeoclimatic implications of the growth history and stable isotope (delta O-18 and delta C-13) geochemistry of a Middle to Late Pleistocene stalagmite from central-western Italy , 2004 .

[79]  N. Roberts,et al.  Holocene climate, environment and cultural change in the circum-Mediterranean region , 2004 .

[80]  A. Dia,et al.  Uranium colloidal transport and origin of the 234U–238U fractionation in surface waters: new insights from Mount Cameroon , 2003 .

[81]  J. Chappell,et al.  Comparison of high resolution sub-annual records of trace elements in a modern (1911–1992) speleothem with instrumental climate data from southwest Australia , 2003 .

[82]  J. Hellstrom.  Rapid and accurate U/Th dating using parallel ion-counting multi-collector ICP-MS , 2003 .

[83]  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 .

[84]  D. Schrag,et al.  Hydrological conditions over the western Mediterranean basin during the deposition of the cold Sapropel 6 (ca. 175 kyr BP) , 2002 .

[85]  Andrea Borsato,et al.  Aragonite-Calcite Relationships in Speleothems (Grotte De Clamouse, France): Environment, Fabrics, and Carbonate Geochemistry , 2002 .

[86]  Isabel F. Trigo,et al.  Climatology of Cyclogenesis Mechanisms in the Mediterranean , 2002 .

[87]  B. Hamelin,et al.  Dead carbon in stalagmites: carbonate bedrock paleodissolution vs. ageing of soil organic matter. Implications for 13C variations in speleothems , 2001 .

[88]  H. Celle-Jeanton,et al.  Isotopic typology of the precipitation in the Western Mediterranean Region at three different time scales , 2001 .

[89]  Andrea Borsato,et al.  Calcite Fabrics, Growth Mechanisms, and Environments of Formation in Speleothems from the Italian Alps and Southwestern Ireland , 2000 .

[90]  M. Bar-Matthews,et al.  Timing and hydrological conditions of Sapropel events in the Eastern Mediterranean, as evident from speleothems, Soreq cave, Israel , 2000 .

[91]  J. Hellstrom,et al.  Multi-proxy constraints on the climatic significance of trace element records from a New Zealand speleothem , 2000 .

[92]  B. Spiro,et al.  Controls on trace element Sr-Mg compositions of carbonate cave waters: implications for speleothem climatic records , 2000 .

[93]  C. Pierre.  THE OXYGEN AND CARBON ISOTOPE DISTRIBUTION IN THE MEDITERRANEAN WATER MASSES , 1999 .

[94]  Sang-Tae Kim,et al.  Equilibrium and nonequilibrium oxygen isotope effects in synthetic carbonates , 1997 .

[95]  P. Smart,et al.  ELEVATED AND VARIABLE VALUES OF 13C IN SPELEOTHEMS IN A BRITISH CAVE SYSTEM , 1997 .

[96]  N. Sturchio.  Uranium-series disequilibrium: Applications to Earth, Marine, and environmental sciences , 1993 .

[97]  J. McGinley,et al.  Numerical analysis of the influence of jets, fronts, and mountains on alpine lee cyclogenesis: More cases from the ALPEX SOP , 1990 .

[98]  J. Morse,et al.  Partition coefficients in calcite: Examination of factors influencing the validity of experimental results and their application to natural systems , 1990 .

[99]  J. K. Osmond,et al.  Chapter 7 – URANIUM DISEQUILIBRIUM IN HYDROLOGIC STUDIES , 1980 .