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Staudacher, Thomas; Allègre, Claude J (1988): Noble gas concentrations of oceanic crust and sediments from the Ninety East Ridge in the Indian Ocean [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.720987, Supplement to: Staudacher, T; Allègre, CJ (1988): Recycling of oceanic crust and sediments: the noble gas subduction barrier. Earth and Planetary Science Letters, 89(2), 173-183, https://doi.org/10.1016/0012-821X(88)90170-7

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Abstract:
We have determined the concentrations and isotopic composition of noble gases in old oceanic crust and oceanic sediments and the isotopic composition of noble gases in emanations from subduction volcanoes. Comparison with the noble gas signature of the upper mantle and a simple model allow us to conclude that at least 98% of the noble gases and water in the subducted slab returns back into the atmosphere through subduction volcanism before they can be admixed into the earth's mantle. It seems that the upper mantle is inaccessible to atmospheric noble gases due to an efficient subduction barrier for volatiles.
Project(s):
Deep Sea Drilling Project (DSDP)
Coverage:
Median Latitude: 1.519366 * Median Longitude: -4.761788 * South-bound Latitude: -33.755000 * West-bound Longitude: -99.175300 * North-bound Latitude: 25.111500 * East-bound Longitude: 90.208000
Date/Time Start: 1972-02-08T00:00:00 * Date/Time End: 1979-03-24T00:00:00
Event(s):
22-214 * Latitude: -11.336800 * Longitude: 88.718000 * Date/Time: 1972-02-08T00:00:00 * Elevation: -1655.0 m * Penetration: 500 m * Recovery: 340.9 m * Location: Indian Ocean//RIDGE * Campaign: Leg22 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 53 cores; 492.5 m cored; 2.5 m drilled; 69.2 % recovery
22-216 * Latitude: 1.462200 * Longitude: 90.208000 * Date/Time: 1972-02-18T00:00:00 * Elevation: -2237.0 m * Penetration: 477.5 m * Recovery: 169.2 m * Location: Indian Ocean//RIDGE * Campaign: Leg22 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 38 cores; 353 m cored; 0 m drilled; 47.9 % recovery
52-417D * Latitude: 25.111500 * Longitude: -68.046800 * Date/Time: 1976-12-30T00:00:00 * Elevation: -5482.0 m * Penetration: 708 m * Recovery: 532 m * Campaign: Leg52 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL)
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
4 datasets

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Datasets listed in this publication series

  1. Staudacher, T; Allègre, CJ (1988): (Table 1) Description of basalt and sediment samples from the Ninety East Ridge. https://doi.org/10.1594/PANGAEA.720977
  2. Staudacher, T; Allègre, CJ (1988): (Table 5) K-Ar ages and concentrations of oceanic crust and sediments. https://doi.org/10.1594/PANGAEA.720986
  3. Staudacher, T; Allègre, CJ (1988): (Table 2) Noble gas concentrations of old oceanic crust. https://doi.org/10.1594/PANGAEA.720978
  4. Staudacher, T; Allègre, CJ (1988): (Table 3) Noble gas concentrations of oceanic sediments. https://doi.org/10.1594/PANGAEA.720985