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Tiedemann, Ralf; Sturm, Arne; Steph, Silke; Lund, Steven P; Stoner, Joseph S (2007): Age models and foraminifer isotopes of four ODP Leg 202 sites [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.774009, Supplement to: Tiedemann, R et al. (2007): Astronomically calibrated timescales from 6 to 2.5 Ma and benthic isotope stratigraphies, Sites 1236, 1237, 1239, and 1241. In: Tiedemann, R; Mix, AC; Richter, C; Ruddiman, WF (eds.) Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 202, 1-69, https://doi.org/10.2973/odp.proc.sr.202.210.2007

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Abstract:
We present benthic isotope stratigraphies for Sites 1236, 1237, 1239, and 1241 that span the late Miocene-Pliocene time interval from 6 to 2.4 Ma. Orbitally tuned timescales were generated for Sites 1237 and 1241 by correlating the high-frequency variations in gamma ray attenuation density, percent sand of the carbonate fraction, and benthic d13C to variations in Earth's orbital parameters. The astronomical timescales for Sites 1237 and 1241 are in agreement with the one from Atlantic Site 925/926 (Ocean Drilling Program Leg 154). The comparison of benthic d18O and d13C records from the east Pacific sites and Atlantic Site 925/926 revealed a surprising clarity of the "41-k.y. signal" in d13C records and a remarkably good correlation between their d13C records. This suggests that the late Miocene-Pliocene amplitudes of obliquity-related d13C cycles reflect a magnitude of global response often larger than that provided by obliquity-related d18O cycles. At Site 1237, the orbitally derived ages of Pliocene magnetic reversal boundaries between the base of Réunion and the top of Thvera confirm astronomical datings of the generally accepted ATNTS2004 timescale, except for the top of Kaena and the base of Sidufjall. Our astronomical age for the top of Kaena is about one obliquity cycle older. The base of Sidufjall appears to be about one precession cycle younger. The age models of Sites 1236 and 1239 were established by correlating their benthic d18O and d13C records directly to the orbitally tuned isotope record of Site 1241.
Project(s):
Ocean Drilling Program (ODP)
Coverage:
Median Latitude: -8.933039 * Median Longitude: -81.006417 * South-bound Latitude: -21.359010 * West-bound Longitude: -86.444860 * North-bound Latitude: 5.842833 * East-bound Longitude: -76.378080
Date/Time Start: 2002-04-22T00:00:00 * Date/Time End: 2002-05-24T15:10:00
Event(s):
202-1236 * Latitude: -21.358983 * Longitude: -81.436083 * Date/Time: 2002-04-22T00:00:00 * Elevation: -1322.9 m * Penetration: 497.8 m * Recovery: 490.1 m * Location: South Pacific Ocean * Campaign: Leg202 * Basis: Joides Resolution * Method/Device: Composite Core (COMPCORE) * Comment: 55 cores; 495 m cored; 2.8 m drilled; 99 % recovery
202-1236A * Latitude: -21.358980 * Longitude: -81.436000 * Date/Time Start: 2002-04-22T13:45:00 * Date/Time End: 2002-04-23T13:40:00 * Elevation: -1323.7 m * Penetration: 207.7 m * Recovery: 197.23 m * Location: South Pacific Ocean * Campaign: Leg202 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 24 cores; 207.7 m cored; 0 m drilled; 95 % recovery
202-1236B * Latitude: -21.359010 * Longitude: -81.436080 * Date/Time Start: 2002-04-23T13:40:00 * Date/Time End: 2002-04-24T08:45:00 * Elevation: -1322.5 m * Penetration: 122.8 m * Recovery: 125.1 m * Location: South Pacific Ocean * Campaign: Leg202 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 13 cores; 122.8 m cored; 0 m drilled; 101.9 % recovery
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
9 datasets

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Datasets listed in this publication series

  1. Tiedemann, R; Sturm, A; Steph, S et al. (2007): (Table T5) Age model for ODP Site 202-1236. https://doi.org/10.1594/PANGAEA.774000
  2. Tiedemann, R; Sturm, A; Steph, S et al. (2007): (Appendix Table AT1) δ¹⁸O and δ¹³C of Cibicidoides mundulus for ODP Site 202-1236. https://doi.org/10.1594/PANGAEA.774002
  3. Tiedemann, R; Sturm, A; Steph, S et al. (2007): (Table T4) Ages of the magnetic reversals for ODP Site 202-1237. https://doi.org/10.1594/PANGAEA.773998
  4. Tiedemann, R; Sturm, A; Steph, S et al. (2007): (Table T1) Age model for ODP Site 202-1237. https://doi.org/10.1594/PANGAEA.773996
  5. Tiedemann, R; Sturm, A; Steph, S et al. (2007): (Appendix Table AT2) δ¹⁸O and δ¹³C of Cibicidoides mundulus for ODP Site 202-1237. https://doi.org/10.1594/PANGAEA.774003
  6. Tiedemann, R; Sturm, A; Steph, S et al. (2007): (Table T6) Age model for ODP Site 202-1239. https://doi.org/10.1594/PANGAEA.774001
  7. Tiedemann, R; Sturm, A; Steph, S et al. (2007): (Appendix Table AT3) δ¹⁸O and δ¹³C of Cibicidoides wuellerstorfi for ODP Hole 202-1239A. https://doi.org/10.1594/PANGAEA.774005
  8. Tiedemann, R; Sturm, A; Steph, S et al. (2007): (Table T3) Age model for ODP Site 202-1241. https://doi.org/10.1594/PANGAEA.773997
  9. Tiedemann, R; Sturm, A; Steph, S et al. (2007): (Appendix Table AT4) δ¹⁸O and δ¹³C of Cibicidoides wuellerstorfi for ODP Site 202-1241. https://doi.org/10.1594/PANGAEA.774007