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Hubberten, Hans-Wolfgang; Morche, Wolfgang; Westall, Francis; Fütterer, Dieter K; Keller, Jörg (1991): Chemistry of volcanic ash layers from the southern Atlantic [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.755300, Supplement to: Hubberten, H-W et al. (1991): Geochemical investigations of volcanic ash layers from southern Atlantic Legs 113 and 114. In: Ciesielski, PF; Kristoffersen, Y; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 114, 733-749, https://doi.org/10.2973/odp.proc.sr.114.182.1991

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Abstract:
Petrographic and geochemical investigations were carried out on 21 ash layers from four sites of ODP Legs 113 and 114 in the southern Atlantic Ocean. With the help of geochemical data and petrographic characterization three rock series can be distinguished for stratigraphically different ash layers from Site 701 (Leg 114) located east of the South Sandwich Island Arc, whereas the Leg 113 tephras from the southern slope of the South Orkney Microcontinent belong to another magmatic series. Geochemical correlation of the Leg 113 tephras with possible source areas indicates that they were probably erupted from the Antarctic Peninsula. The Miocene ashes from Site 701 are probably derived from the now-extinct Discovery Arc, the precursor of the South Sandwich Islands. The Pliocene ashes from the site show some affinity with the South Shetland Islands, although the available data do not permit a clear correlation. The Quaternary ashes from Site 701 display a chemistry typical of island-arc tholeiites and are therefore most probably derived from eruptions on the South Sandwich Islands. Because of their distant position the southern Andes seem to be rather improbable as a potential source region for the tephra layers investigated.
Project(s):
Ocean Drilling Program (ODP)
Coverage:
Median Latitude: -58.736287 * Median Longitude: -35.792695 * South-bound Latitude: -62.391000 * West-bound Longitude: -43.451600 * North-bound Latitude: -51.985000 * East-bound Longitude: -23.211700
Date/Time Start: 1987-02-20T09:30:00 * Date/Time End: 1987-04-10T21:15:00
Event(s):
113-695A * Latitude: -62.391000 * Longitude: -43.451600 * Date/Time Start: 1987-02-20T09:30:00 * Date/Time End: 1987-02-23T10:00:00 * Elevation: -1311.0 m * Penetration: 345.1 m * Recovery: 254.39 m * Location: Weddell Sea * Campaign: Leg113 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 37 cores; 348.6 m cored; 0 m drilled; 73 % recovery
113-696A * Latitude: -61.849000 * Longitude: -42.933100 * Date/Time Start: 1987-02-23T10:00:00 * Date/Time End: 1987-02-24T16:30:00 * Elevation: -661.0 m * Penetration: 103 m * Recovery: 58.3 m * Location: Weddell Sea * Campaign: Leg113 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 12 cores; 106 m cored; 0 m drilled; 55 % recovery
113-696B * Latitude: -61.849000 * Longitude: -42.933300 * Date/Time Start: 1987-02-24T16:30:00 * Date/Time End: 1987-03-02T04:15:00 * Elevation: -661.0 m * Penetration: 645.6 m * Recovery: 156.69 m * Location: Weddell Sea * Campaign: Leg113 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 59 cores; 569 m cored; 0 m drilled; 27.5 % recovery
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
7 datasets

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Datasets listed in this publication series

  1. Hubberten, H-W; Morche, W; Westall, F et al. (1991): (Appendix) Chemical elements of analyzed glass shards of ODP Hole 113-695A. https://doi.org/10.1594/PANGAEA.755299
  2. Hubberten, H-W; Morche, W; Westall, F et al. (1991): (Appendix) Chemical elements of analyzed glass shards of ODP Site 113-696. https://doi.org/10.1594/PANGAEA.755296
  3. Hubberten, H-W; Morche, W; Westall, F et al. (1991): (Appendix) Chemical elements of analyzed glass shards of ODP Hole 113-697B. https://doi.org/10.1594/PANGAEA.755298
  4. Hubberten, H-W; Morche, W; Westall, F et al. (1991): (Appendix) Chemical elements of analyzed glass shards of ODP Site 114-701. https://doi.org/10.1594/PANGAEA.755294
  5. Hubberten, H-W; Morche, W; Westall, F et al. (1991): (Table 1) Ash layers in ODP Leg 113 and 114 holes. https://doi.org/10.1594/PANGAEA.755285
  6. Hubberten, H-W; Morche, W; Westall, F et al. (1991): (Table 4) Mean values of the chemical data from the ash layers from ODP Legs 113 and 114. https://doi.org/10.1594/PANGAEA.755292
  7. Hubberten, H-W; Morche, W; Westall, F et al. (1991): (Table 3) Petrographic summary of ashes from ODP Legs 113 and 114. https://doi.org/10.1594/PANGAEA.755289