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Mahoney, John J; Duncan, Robert A; Tejada, Maria Luisa G; Sager, William W; Bralower, Timothy J (2005): Chemical, isotopic and isotope-chronological data for samples from DSDP Hole 62-464 and ODP Holes 191-1179D and 198-1213B [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.722622, Supplement to: Mahoney, JJ et al. (2005): Jurassic-Cretaceous boundary age and mid-ocean-ridge-type mantle source for Shatsky Rise. Geology, 33(3), 185-188, https://doi.org/10.1130/G21378.1

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Abstract:
Basalt sills cored in lowermost Berriasian sediments on Shatsky Rise in the northwest Pacific yield a mean 40Ar-39Ar incremental heating age of 144.6+/-0.8 Ma, providing a minimum estimate on the age of the Jurassic-Cretaceous boundary. The largest part of the rise was emplaced at rates similar to those of several continental flood basalts. The rise formed at an oceanic triple junction, and the sills, as well as lavas from two dredge sites, exhibit an ocean ridge-type Nd-Pb-Sr isotope signature. This signature is provisionally consistent with either a perisphere or meteorite-impact model, but is not predicted by the plume-head model of plateau formation. However, no model can yet be rejected, given the very sparse sampling of Shatsky Rise.
Other version:
Supplemental material - 40Ar-39Ar methods
Project(s):
Deep Sea Drilling Project (DSDP)
Ocean Drilling Program (ODP)
Coverage:
Median Latitude: 36.125665 * Median Longitude: 160.951350 * South-bound Latitude: 31.577630 * West-bound Longitude: 157.297700 * North-bound Latitude: 41.080200 * East-bound Longitude: 173.888800
Date/Time Start: 1978-08-17T00:00:00 * Date/Time End: 2001-10-09T19:00:00
Event(s):
62-464 * Latitude: 39.860700 * Longitude: 173.888800 * Date/Time: 1978-08-17T00:00:00 * Elevation: -4637.0 m * Penetration: 308.5 m * Recovery: 77.6 m * Location: North Pacific/CONT RISE * Campaign: Leg62 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 34 cores; 308.5 m cored; 0 m drilled; 25.2 % recovery
191-1179D * Latitude: 41.080200 * Longitude: 159.963100 * Date/Time Start: 2000-07-30T02:30:00 * Date/Time End: 2000-08-06T11:50:00 * Elevation: -5566.0 m * Penetration: 475 m * Recovery: 50.36 m * Location: North Pacific Ocean * Campaign: Leg191 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 22 cores; 194 m cored; 281 m drilled; 26 % recovery
198-1213B * Latitude: 31.577630 * Longitude: 157.297700 * Date/Time Start: 2001-10-04T03:00:00 * Date/Time End: 2001-10-09T19:00:00 * Elevation: -3882.6 m * Penetration: 494.4 m * Recovery: 60.46 m * Location: North Pacific Ocean * Campaign: Leg198 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 33 cores; 304.7 m cored; 189.7 m drilled; 19.8 % 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. Mahoney, JJ; Duncan, RA; Tejada, MLG et al. (2005): (Table DR1) 40Ar-39Ar incremental heating ages for ODP Hole 198-1213B basalts. https://doi.org/10.1594/PANGAEA.722615
  2. Mahoney, JJ; Duncan, RA; Tejada, MLG et al. (2005): (Table DR2) Nd-Pb-Sr isotope ratios and isotope-dilution concentrations, DSDP Hole 62-464. https://doi.org/10.1594/PANGAEA.722618
  3. Mahoney, JJ; Duncan, RA; Tejada, MLG et al. (2005): (Table DR2) Nd-Pb-Sr isotope ratios and isotope-dilution concentrations in samples from ODP Hole 191-1179D. https://doi.org/10.1594/PANGAEA.722616
  4. Mahoney, JJ; Duncan, RA; Tejada, MLG et al. (2005): (Table DR2) Nd-Pb-Sr isotope ratios and isotope-dilution concentrations in samples from ODP Hole 198-1213B. https://doi.org/10.1594/PANGAEA.722617
  5. Mahoney, JJ; Duncan, RA; Tejada, MLG et al. (2005): (Table DR3) Major and trace element concentrations in samples from ODP Hole 191-1179D. https://doi.org/10.1594/PANGAEA.722619
  6. Mahoney, JJ; Duncan, RA; Tejada, MLG et al. (2005): (Table DR3) Major and trace element concentrations in samples from ODP Hole 198-1213B. https://doi.org/10.1594/PANGAEA.722620