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Bajo, Petra; Drysdale, Russell N; Woodhead, Jon D; Hellstrom, John C; Hodell, David A; Ferretti, Patrizia; Voelker, Antje H L; Zanchetta, Giovanni; Rodrigues, Teresa; Wolff, Eric William; Tyler, Jonathan James; Frisia, Silvia; Spötl, Christoph; Fallick, Anthony E (2020): Carbon and oxygen isotope data from Corchia Cave speleothems and oxygen isotope, SST and C37:4 data from IODP sites 339-U1385 and 339-U1387 for the period 970 - 810 ka [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.914414

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Abstract:
The archived data presented here are derived from analytical measurements performed on ocean sediments from cores drilled off the Iberian Margin and speleothems collected from Corchia Cave (Italy). The time span is 970 to 810 ka. A full description of the sample preparation procedures and analytical methods is contained in the Supplementary Material of the article.
The ocean coring sites are IODP Site U1385 and Site U1387. From Site U1385 for this study, we measured: the oxygen isotope ratios on planktic (Globigerina bulloides) and benthic (Cibicidoides weullerstorfi) foraminfera at 2 cm resolution. The alkenone C37:4 biomarker data from the same site were taken from Rodrigues et al. (2017). From Site U1387 for this study, we measured: the oxygen isotope ratios on planktic foraminifera (Globigerina bulloides) and alkenone biomarkers for calculating the index Uk'37 , a proxy for sea-surface temperatures. Data from U1387 were placed onto the U1385 depth scale by synchronising the planktic oxygen isotope series. All measurements were made using standard analytical methods following the preparation procedures outlined in the Supplementary Materials of Bajo et al. (2020).
The data for Corchia Cave were from four stalagmites and one subaqueous speleothem. Stable oxygen and carbon isotopes were measured on all speleothems. For the four stalagmites, sampling was conducted at 1 mm resolution. For stalagmite CC8, which covers the longest time interval, the sampling resolution was increased to 250 μm through termination X and XII. For the subaqueous speleothem (CD3), oxygen and carbon isotopes were measured on samples milled at 200 μm increments. The speleothem chronology was based on U-Pb radiometric ages from the four stalagmites. The individual time series were stacked into a single time series utilising all of the U-Pb ages. Analytical methods are described in detail in the Supplementary Materials of Bajo et al. (2020).
The ocean and speleothem data were combined in order to place the ocean proxy series onto a radiometric time scale. This was achieved by synchronising the planktic G. bulloides oxygen isotope series to the speleothem oxygen isotope series. The principal purpose was to determine the timing of terminations X and XII and compare these ages with the astronomical template.
Keyword(s):
geochronology; glacial terminations; Palaeoceanography; palaeoclimatology; Speleothems; Stable isotopes
Supplement to:
Bajo, Petra; Drysdale, Russell N; Woodhead, Jon D; Hellstrom, John C; Hodell, David A; Ferretti, Patrizia; Voelker, Antje H L; Zanchetta, Giovanni; Rodrigues, Teresa; Wolff, Eric William; Tyler, Jonathan James; Frisia, Silvia; Spötl, Christoph; Fallick, Anthony E (2020): Persistent influence of obliquity on ice age terminations since the Middle Pleistocene transition. Science, 367(6483), 1235-1239, https://doi.org/10.1126/science.aaw1114
Further details:
Rodrigues, Teresa; Alonso-Garcia, Montserrat; Hodell, David A; Rufino, Marta M; Naughton, Filipa; Grimalt, Joan O; Voelker, Antje H L; Abrantes, Fatima F (2017): A 1-Ma record of sea surface temperature and extreme cooling events in the North Atlantic: A perspective from the Iberian Margin. Quaternary Science Reviews, 172, 118-130, https://doi.org/10.1016/j.quascirev.2017.07.004
Coverage:
Median Latitude: 41.916273 * Median Longitude: 4.215960 * South-bound Latitude: 36.805000 * West-bound Longitude: -10.126027 * North-bound Latitude: 44.030556 * East-bound Longitude: 10.297222
Date/Time Start: 2011-11-25T00:00:00 * Date/Time End: 2011-11-25T00:00:00
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Size:
16 datasets

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Datasets listed in this publication series

  1. Bajo, P; Drysdale, RN; Woodhead, JD et al. (2020): Oxygen isotope of benthic foraminifera Cibicidoides wuellerstorfi from IODP Site 339-U1385. https://doi.org/10.1594/PANGAEA.914399
  2. Bajo, P; Drysdale, RN; Woodhead, JD et al. (2020): C37:4 data from IODP Site 339-U1385. https://doi.org/10.1594/PANGAEA.914398
  3. Bajo, P; Drysdale, RN; Woodhead, JD et al. (2020): Oxygen isotope of planktic foraminifera Globigerina bulloides from IODP Site 339-U1385. https://doi.org/10.1594/PANGAEA.914397
  4. Bajo, P; Drysdale, RN; Woodhead, JD et al. (2020): Oxygen isotope of planktic foraminifera Globigerina bulloides from IODP Site 339-U1387. https://doi.org/10.1594/PANGAEA.914401
  5. Bajo, P; Drysdale, RN; Woodhead, JD et al. (2020): SST and synchronized ages from IODP Site 339-U1387. https://doi.org/10.1594/PANGAEA.914400
  6. Bajo, P; Drysdale, RN; Woodhead, JD et al. (2020): Age model of sample CC8 from Corchia Cave speleothems. https://doi.org/10.1594/PANGAEA.914402
  7. Bajo, P; Drysdale, RN; Woodhead, JD et al. (2020): Carbon and oxygen isotope data of sample CC8 from Corchia Cave speleothems. https://doi.org/10.1594/PANGAEA.914403
  8. Bajo, P; Drysdale, RN; Woodhead, JD et al. (2020): Age model of sample CC30 from Corchia Cave speleothems. https://doi.org/10.1594/PANGAEA.914410
  9. Bajo, P; Drysdale, RN; Woodhead, JD et al. (2020): Carbon and oxygen isotope data of sample CC30 from Corchia Cave speleothems. https://doi.org/10.1594/PANGAEA.914407
  10. Bajo, P; Drysdale, RN; Woodhead, JD et al. (2020): Age model of sample CC119 from Corchia Cave speleothems. https://doi.org/10.1594/PANGAEA.914411
  11. Bajo, P; Drysdale, RN; Woodhead, JD et al. (2020): Carbon and oxygen isotope data of sample CC119 from Corchia Cave speleothems. https://doi.org/10.1594/PANGAEA.914406
  12. Bajo, P; Drysdale, RN; Woodhead, JD et al. (2020): Age model of sample CC122 from Corchia Cave speleothems. https://doi.org/10.1594/PANGAEA.914412
  13. Bajo, P; Drysdale, RN; Woodhead, JD et al. (2020): Carbon and oxygen isotope data of sample CC122 from Corchia Cave speleothems. https://doi.org/10.1594/PANGAEA.914405
  14. Bajo, P; Drysdale, RN; Woodhead, JD et al. (2020): Carbon and oxygen isotope data of sample CD3 from Corchia Cave speleothems. https://doi.org/10.1594/PANGAEA.914408
  15. Bajo, P; Drysdale, RN; Woodhead, JD et al. (2020): Stack Age model from Corchia Cave speleothems. https://doi.org/10.1594/PANGAEA.914413
  16. Bajo, P; Drysdale, RN; Woodhead, JD et al. (in review): Carbon and oxygen isotope stack data from Corchia Cave speleothems. https://doi.pangaea.de/10.1594/PANGAEA.914409