Campanet Cave, Mallorca, Spain 121KYr Stalagmite Stable Isotope Data Dumitru, O.A.; Onac, B.P.; Polyak, V.J.; Wynn, J.G.; Asmerom, Y.; Fornós, J.J. Dumitru, O.A. Onac, B.P. Polyak, V.J. Wynn, J.G. Asmerom, Y. Fornós, J.J. earth science/paleoclimate/speleothems (depth,null,null,millimeter,null,speleothems,null,null,N,null) earth science/paleoclimate/speleothems (delta 18O,calcium carbonate,null,per mil PDB,null,speleothems,null,isotope ratio mass spectrometry,N,null) earth science/paleoclimate/speleothems (age,null,two standard deviations,calendar year,null,speleothems,null,null,N,null) earth science/paleoclimate/speleothems (delta 13C,calcium carbonate,null,per mil PDB,null,speleothems,null,isotope ratio mass spectrometry,N,null) earth science/paleoclimate/speleothems (age,null,null,calendar year before present,null,speleothems,null,null,N,Yrs BP; present=2015) earth science/paleoclimate/speleothems earth science/paleoclimate/speleothems (Campanet Cave>LATITUDE 39.7937>LONGITUDE 2.9683) The western Mediterranean region is exceptionally vulnerable to predicted climate changes of increasing temperature and aridity. Characterizing past climate oscillations since the last interglacial (LIG) is critical to understand climate patterns during the present warm period. Here we present an accurately dated speleothem record (CAM-1) of paleoclimate between 121 and 67 ka from the island of Mallorca. The growth history combined with the isotopic record and mineral changes, provides evidence of dramatic climatic shifts in the western Mediterranean. Isotopic equilibrium deposition was assessed by Hendy tests and by comparing the d18O in modern drip water with newly precipitated calcite. We argue that variability of d18O in CAM-1 is mainly related to changes in source of precipitation, whereas high d13C values reflect a dry climate. Calcite rather than aragonite growth is related to cooler, drier climate. The MIS 5e/5d transition, C24, C23, and C21 cold events concomitantly recorded in CAM-1, ODP 984, and NGRIP highlights the teleconnection between high and mid-latitudes in the Northern Hemisphere. Our record reveals a prolonged aridity during MIS 5c and a sudden climate shift from drier to wetter conditions beginning with MIS 5b. A growth hiatus at 67 to 53 ka probably marks the driest period, after which slow calcite growth indicates markedly drier climate during the last glacial and Holocene than during MIS 5. Many of the significant changes in growth rates and stable isotopic composition are synchronous with events that are likely driven by regional climate and large circulation patterns linked to the North Atlantic. STUDY NOTES: Stable isotope (d18O, d13C) data from stalagmite CAM-1 collected in Campanet Cave, Mallorca, Spain, for the past 121,000 years NCDC-Paleoclimatology https://www.ncdc.noaa.gov/data-access/paleoclimatology-data - Bauer Bruce Investigator : Dumitru, O.A. Investigator : Onac, B.P. Investigator : Polyak, V.J. Investigator : Wynn, J.G. Investigator : Asmerom, Y. Investigator : Fornós, J.J. 2018-08-22 ONLINE Files online, ASCII https://www.ncdc.noaa.gov/paleo/study/24950 https://www1.ncdc.noaa.gov/pub/data/paleo/speleothem/europe/spain/campanet2018.txt https://www1.ncdc.noaa.gov/pub/data/paleo/speleothem/europe/spain/campanet2018.txt English https://www.ncdc.noaa.gov/paleo/study/24950 https://www1.ncdc.noaa.gov/pub/data/paleo/speleothem/europe/spain/campanet2018.txt Oana A. Dumitru, Bogdan P. Onac, Victor J. Polyak, Jonathan G. Wynn, Yemane Asmerom, Joan J. Fornós2018Climate variability in the western Mediterranean between 121 and 67 ka derived from a Mallorcan speleothem recordPalaeogeography, Palaeoclimatology, Palaeoecology506128-13810.1016/j.palaeo.2018.06.028https://www.sciencedirect.com/science/article/pii/S0031018217311665 START YEAR: 121088 cal yr BP * END YEAR: 215 cal yr BP 2.9683 39.7937 2.9683 39.7937