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Tauxe, Lisa; Tucker, Peter; Petersen, Nikolai P; LaBrecque, John L (1983): Magnetostratigraphy of DSDP Leg 73 in the South Atlantic [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.701751, Supplement to: Tauxe, L et al. (1983): The magnetostratigraphy of Leg 73 sediments. Palaeogeography, Palaeoclimatology, Palaeoecology, 42(1-2), 65-90, https://doi.org/10.1016/0031-0182(83)90039-1

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Abstract:
The main objective of DSDP Leg 73 was to obtain high-quality records of major paleooceanographic events in the South Atlantic. This was achieved by coring six sites on the African plate. The sediments thus recovered span the Cenozoic and five of the six sites proved ideally suited for magnetostratigraphic analysis. The results presented in this paper and elsewhere in this volume constitute the first opportunity to extend the direct correlation of the magnetostratigraphic and biostratigraphic time-scales into the Paleogene in deep-sea cores.
The magnetostratigraphic analyses from DSDP Leg 73 sediments are presented in this paper. The correlation of the magnetostratigraphy to the magnetic polarity time-scale provides tight age-depth control for the five sites analyzed, allowing the accurate calculation of sediment accumulation rates.
The data presented here represent a remarkable record of the fine-scale polarity history of the Earth's magnetic field. These data place constraints on the interpretation of smallscale marine magnetic anomalies which are modelled equally effectively by field intensity fluctuations as polarity reversals. At least some of the "tiny wiggles" correspond to very short polarity units in the magnetostratigraphic record.
By assuming an axial geocentric dipole, the inclination of the time-averaged magnetic field recorded in the sediments can be used to calculate the paleolatitude at which the sediments were deposited. Combining the age and average inclination information available from the magnetostratigraphy, we present paleolatitudes versus time for the Leg 73 drill sites.
Related to:
Tauxe, Lisa; Tucker, Peter; Petersen, Nikolai P; LaBrecque, John L (1984): Magnetostratigraphy of Leg 73 sediments. In: Hsü, K.H., LaBrecque, J.L., et al. (eds.), Initial Reports of the Deep Sea Drilling Project, Washington (U.S. Government Print Office), 73, 609-612, https://doi.org/10.2973/dsdp.proc.73.123.1984
Project(s):
Deep Sea Drilling Project (DSDP)
Coverage:
Median Latitude: -27.368368 * Median Longitude: -4.450712 * South-bound Latitude: -29.484200 * West-bound Longitude: -11.666200 * North-bound Latitude: -26.073800 * East-bound Longitude: 3.512300
Date/Time Start: 1980-04-22T00:00:00 * Date/Time End: 1980-05-21T00:00:00
Event(s):
73-519 * Latitude: -26.136700 * Longitude: -11.666200 * Date/Time: 1980-04-22T00:00:00 * Elevation: -3769.0 m * Penetration: 151.6 m * Recovery: 138.1 m * Location: South Atlantic/RIDGE * Campaign: Leg73 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 37 cores; 151.6 m cored; 0 m drilled; 91.1 % recovery
73-521 * Latitude: -26.073800 * Longitude: -10.264500 * Date/Time: 1980-05-02T00:00:00 * Elevation: -4125.0 m * Penetration: 84 m * Recovery: 75.2 m * Location: South Atlantic/HILL * Campaign: Leg73 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 21 cores; 84 m cored; 0 m drilled; 89.5 % recovery
73-522_Site * Latitude: -26.114000 * Longitude: -5.129700 * Date/Time: 1980-05-06T00:00:00 * Elevation: -4441.0 m * Penetration: 4.751 m * Recovery: 2.614 m * Location: South Atlantic/PLATEAU * Campaign: Leg73 * Basis: Glomar Challenger * Method/Device: Composite Core (COMPCORE) * Comment: 72 cores; 293.3 m cored; 5 m drilled; 89.1% recovery
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
6 datasets

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Datasets listed in this publication series

  1. Tauxe, L; Tucker, P; Petersen, NP et al. (1983): (Table 1) Magnetostratigraphic age model of DSDP Hole 73-519 in the South Atlantic. https://doi.org/10.1594/PANGAEA.701745
  2. Tauxe, L; Tucker, P; Petersen, NP et al. (1983): (Table 2) Magnetostratigraphic age model of DSDP Hole 73-521 in the South Atlantic. https://doi.org/10.1594/PANGAEA.701746
  3. Tauxe, L; Tucker, P; Petersen, NP et al. (1983): (Table 3) Magnetostratigraphic age model of DSDP Site 73-522 in the South Atlantic. https://doi.org/10.1594/PANGAEA.701747
  4. Tauxe, L; Tucker, P; Petersen, NP et al. (1983): (Table 4) Magnetostratigraphic age model of DSDP Hole 73-523 in the South Atlantic. https://doi.org/10.1594/PANGAEA.701748
  5. Tauxe, L; Tucker, P; Petersen, NP et al. (1983): (Table 5) Magnetostratigraphic age model of DSDP Hole 73-524 in the South Atlantic. https://doi.org/10.1594/PANGAEA.701749
  6. Tauxe, L; Tucker, P; Petersen, NP et al. (1983): (Table 6) Paleolatitude estimations for DSDP sites in the South Atlantic. https://doi.org/10.1594/PANGAEA.701750