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Vallier, Tracy L; Windom, Kenneth E; Seifert, Karl E; Lee-Wong, Florence (1981): Minerals and geochemistry at DSDP Hole 62-466 [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.819817, Supplement to: Vallier, TL et al. (1981): Petrologic and tectonic significance of volcanic clasts in upper Cretaceous nannofossil ooze, Deep Sea Drilling Project Site 466, southern Hess Rise. In: Thiede, J; Vallier, TL; et al. (eds.), Initial Reports of the Deep Sea Drilling Project (U.S. Govt. Printing Office), 62, 961-966, https://doi.org/10.2973/dsdp.proc.62.151.1981

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Abstract:
Alkali-basalt clasts in Upper Cretaceous sediments from Site 466 on southern Hess Rise suggest that parts of Hess Rise were constructed by off-ridge volcanic activity. Apparently, tectonic adjustments at Hess Rise occurred during the Late Cretaceous (Campanian-Maastrichtian), when parts of the original volcanic pedestal were uplifted and provided source rocks for the clasts. Synchronous volcanism may have occurred. Causes for the Late Cretaceous tectonic adjustments (and volcanism?) are not known, but they may be related to intraplate movement along the Mendocino Fracture Zone.
Project(s):
Deep Sea Drilling Project (DSDP)
Coverage:
Latitude: 34.191000 * Longitude: 179.255700
Date/Time Start: 1978-08-28T00:00:00 * Date/Time End: 1978-08-28T00:00:00
Event(s):
62-466 * Latitude: 34.191000 * Longitude: 179.255700 * Date/Time: 1978-08-28T00:00:00 * Elevation: -2665.0 m * Penetration: 312 m * Recovery: 105.1 m * Location: North Pacific/CONT RISE * Campaign: Leg62 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 33 cores; 302.5 m cored; 9.5 m drilled; 34.7 % recovery
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
2 datasets

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Datasets listed in this publication series

  1. Vallier, TL; Windom, KE; Seifert, KE et al. (1981): (Table 2) Clinopyroxene chemistry at DSDP Hole 62-466. https://doi.org/10.1594/PANGAEA.819816
  2. Vallier, TL; Windom, KE; Seifert, KE et al. (1981): (Table 1) Petrography of volcanic clasts in upper Cretaceous sediments at DSDP Hole 62-466. https://doi.org/10.1594/PANGAEA.819815