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Suganuma, Yusuke; Ogg, James G (2006): Magnetostratigraphy of ODP Leg 207 sediments [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.775890, Supplement to: Suganuma, Y; Ogg, JG (2006): Campanian through Eocene magnetostratigraphy of Sites 1257-1261, ODP Leg 207, Demerara Rise (western equatorial Atlantic). In: Mosher, DC; Erbacher, J; Malone, MJ (eds.) Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 207, 1-48, https://doi.org/10.2973/odp.proc.sr.207.102.2006

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Abstract:
Ocean Drilling Program (ODP) Sites 1257-1261 recovered thick sections of Upper Cretaceous-Eocene oceanic sediments on Demerara Rise off the east coast of Surinam and French Guiana, South America. Paleomagnetic and rock magnetic measurements of ~800 minicores established a high-resolution composite magnetostratigraphy spanning most of the Maastrichtian-Eocene. Magnetic behavior during demagnetization varied among lithologies, but thermal demagnetization steps >200°C were generally successful in removing present-day normal polarity overprints and a downward overprint induced during the ODP coring process. Characteristic remanent magnetizations and associated polarity interpretations were generally assigned to directions observed at 200°-400°C, and the associated polarity interpretations were partially based on whether the characteristic direction was aligned or apparently opposite to the low-temperature "north-directed" overprint. Biostratigraphy and polarity patterns constrained assignment of polarity chrons. The composite sections have a complete polarity record of Chrons C18n (middle Eocene)-C34n (Late Cretaceous).
Project(s):
Ocean Drilling Program (ODP)
Coverage:
Median Latitude: 9.314262 * Median Longitude: -54.419416 * South-bound Latitude: 9.048610 * West-bound Longitude: -54.733310 * North-bound Latitude: 9.453830 * East-bound Longitude: -54.199080
Date/Time Start: 2003-01-15T14:30:00 * Date/Time End: 2003-10-28T10:10:00
Event(s):
207-1257A * Latitude: 9.453830 * Longitude: -54.341960 * Date/Time Start: 2003-01-15T14:30:00 * Date/Time End: 2003-01-19T22:45:00 * Elevation: -2951.0 m * Penetration: 284.7 m * Recovery: 216.05 m * Location: South Atlantic Ocean * Campaign: Leg207 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 31 core; 284.7 m cored; 0 m drilled; 75.9 % recovery
207-1257B * Latitude: 9.453630 * Longitude: -54.341800 * Date/Time Start: 2003-01-19T22:45:00 * Date/Time End: 2003-01-21T13:20:00 * Elevation: -2951.0 m * Penetration: 227.3 m * Recovery: 116.23 m * Location: South Atlantic Ocean * Campaign: Leg207 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 27 cores; 187.3 m cored; 40 m drilled; 62.1 % recovery
207-1257C * Latitude: 9.453430 * Longitude: -54.341580 * Date/Time Start: 2003-01-21T13:20:00 * Date/Time End: 2003-01-22T15:30:00 * Elevation: -2951.0 m * Penetration: 235.9 m * Recovery: 96.6 m * Location: South Atlantic Ocean * Campaign: Leg207 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 16 cores; 153.9 m cored; 82 m drilled; 62.8 % recovery
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
11 datasets

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Datasets listed in this publication series

  1. Suganuma, Y; Ogg, JG (2006): (Table AT1) Early Maastrichtian to mid-Campanian palaeomagnetic analysis of ODP Hole 207-1257A. https://doi.org/10.1594/PANGAEA.775879
  2. Suganuma, Y; Ogg, JG (2006): (Table AT2) Late Eocene-Albian palaeomagnetic analysis of ODP Hole 207-1257B. https://doi.org/10.1594/PANGAEA.775880
  3. Suganuma, Y; Ogg, JG (2006): (Table AT3) Maastrichtian-Campanian palaeomagnetic analysis of ODP Hole 207-1257C. https://doi.org/10.1594/PANGAEA.775881
  4. Suganuma, Y; Ogg, JG (2006): (Table AT4) Palaeomagnetic analysis of ODP Hole 207-1258A. https://doi.org/10.1594/PANGAEA.775882
  5. Suganuma, Y; Ogg, JG (2006): (Table AT5) Palaeomagnetic analysis of ODP Hole 207-1258B. https://doi.org/10.1594/PANGAEA.775883
  6. Suganuma, Y; Ogg, JG (2006): (Table AT6) Palaeomagnetic analysis of ODP Hole 207-1259A. https://doi.org/10.1594/PANGAEA.775884
  7. Suganuma, Y; Ogg, JG (2006): (Table AT7) Palaeomagnetic analysis of ODP Hole 207-1259B. https://doi.org/10.1594/PANGAEA.775885
  8. Suganuma, Y; Ogg, JG (2006): (Table AT8) Palaeomagnetic analysis of ODP Hole 207-1260A. https://doi.org/10.1594/PANGAEA.775886
  9. Suganuma, Y; Ogg, JG (2006): (Table AT9) Palaeomagnetic analysis of ODP Hole 207-1260B. https://doi.org/10.1594/PANGAEA.775887
  10. Suganuma, Y; Ogg, JG (2006): (Table AT10) Palaeomagnetic analysis of ODP Hole 207-1261A. https://doi.org/10.1594/PANGAEA.775888
  11. Suganuma, Y; Ogg, JG (2006): (Table AT11) Palaeomagnetic analysis of ODP Hole 207-1261B. https://doi.org/10.1594/PANGAEA.775889