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MacLeod, Kenneth G; Martin, Ellen E; Blair, Susanna W (2008): Nd, Sm and carbon isotopic data for samples from ODP Legs 115, 145, 171, and 207 [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.722613, Supplement to: MacLeod, KG et al. (2008): Nd isotopic excursion across Cretaceous ocean anoxic event 2 (Cenomanian-Turonian) in the tropical North Atlantic. Geology, 36(10), 811-814, https://doi.org/10.1130/G24999A.1

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Abstract:
Late Cretaceous fish debris from Demerara Rise exhibits a dramatic positive excursion of 8 e-Nd units during ocean anoxic event 2 (OAE2) that is superimposed on extremely low e-Nd(t) values (-14 to -16.5) observed throughout the rest of the studied interval. The OAE2 e-Nd excursion is the largest yet documented in marine sediments, and the majority of the shift is estimated to have occurred over <20 k.y. Low background e-Nd values on Demerara Rise are explained as the Nd isotopic signature of the South American craton, whereas eruptions of the Caribbean large igneous province or enhanced mixing of intermediate waters in the North Atlantic could have caused the excursion.
Other version:
Supplementary material - Materials and methods
Project(s):
Ocean Drilling Program (ODP)
Coverage:
Median Latitude: 16.386191 * Median Longitude: -71.518793 * South-bound Latitude: 9.265800 * West-bound Longitude: -168.240000 * North-bound Latitude: 44.689700 * East-bound Longitude: -54.199080
Date/Time Start: 1992-09-05T00:30:00 * Date/Time End: 2003-10-28T10:10:00
Event(s):
115-711A * Latitude: -2.742700 * Longitude: 61.163000 * Date/Time Start: 1987-06-11T01:30:00 * Date/Time End: 1987-06-12T15:30:00 * Elevation: -4439.0 m * Penetration: 249.7 m * Recovery: 203.86 m * Location: South Indian Ridge, South Indian Ocean * Campaign: Leg115 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 26 cores; 249.6 m cored; 0 m drilled; 81.7 % recovery
145-886C * Latitude: 44.689700 * Longitude: -168.240000 * Date/Time Start: 1992-09-05T06:15:00 * Date/Time End: 1992-09-05T00:30:00 * Elevation: -5725.0 m * Penetration: 72.4 m * Recovery: 67.09 m * Location: North Pacific Ocean * Campaign: Leg145 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 8 cores; 72.4 m cored; 0 m drilled; 92.7 % recovery
171-1050C * Latitude: 30.099910 * Longitude: -76.234970 * Date/Time: 1997-02-08T19:30:00 * Elevation: -2296.5 m * Penetration: 606 m * Recovery: 200.19 m * Location: Blake Nose, North Atlantic Ocean * Campaign: Leg171B * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 31 core; 288.5 m cored; 317.5 m drilled; 69.4 % recovery
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
8 datasets

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Datasets listed in this publication series

  1. MacLeod, KG; Martin, EE; Blair, SW (2008): (Table S1) Nd and Sm isotopic data for samples from ODP Hole 145-886C. https://doi.org/10.1594/PANGAEA.722601
  2. MacLeod, KG; Martin, EE; Blair, SW (2008): (Table S1) Nd and Sm isotopic data for samples from ODP Hole 171B-1050C. https://doi.org/10.1594/PANGAEA.722602
  3. MacLeod, KG; Martin, EE; Blair, SW (2008): (Table S1) Nd and Sm isotopic data for samples from ODP Hole 207-1258A. https://doi.org/10.1594/PANGAEA.722603
  4. MacLeod, KG; Martin, EE; Blair, SW (2008): (Table S1) Nd and Sm isotopic data for samples from ODP Hole 207-1258B. https://doi.org/10.1594/PANGAEA.722604
  5. MacLeod, KG; Martin, EE; Blair, SW (2008): (Table S1) Nd and Sm isotopic data for samples from ODP Hole 207-1258C. https://doi.org/10.1594/PANGAEA.722605
  6. MacLeod, KG; Martin, EE; Blair, SW (2008): (Table S1) Nd and Sm isotopic data for samples from ODP Hole 207-1259B. https://doi.org/10.1594/PANGAEA.722606
  7. MacLeod, KG; Martin, EE; Blair, SW (2008): (Table S1) Nd and Sm isotopic data for samples from ODP Hole 207-1260A. https://doi.org/10.1594/PANGAEA.722607
  8. MacLeod, KG; Martin, EE; Blair, SW (2008): (Table S2) Carbon isotopic composition of bulk organic matter from ODP Hole 207-1258A. https://doi.org/10.1594/PANGAEA.722612