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Grobe, Hannes; Fütterer, Dieter K; Spieß, Volkhard (1990): Sedimentological and paleomagnetic investigations on two gravity cores and ODP sites 113-690 and 693 off Kapp Norvegia, Antarctic continental margin [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.552177, Supplement to: Grobe, H et al. (1990): Oligocene to Quaternary sedimentation processes on the Antarctic continental margin, ODP Leg 113, Site 693. In: Barker, PF; Kennett, JP; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 113, 121-131, https://doi.org/10.2973/odp.proc.sr.113.193.1990

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Abstract:
Oligocene to Quaternary sediments were recovered from the Antarctic continental margin in the eastern Weddell Sea during ODP Leg 113 and Polarstern expedition ANT-VI. Clay mineral composition and grain size distribution patterns are useful for distinguishing sediments that have been transported by ocean currents from those that were ice-rafted. This, in turn, has assisted in providing insights about the changing late Paleogene to Neogene sedimentary environment as the cryosphere developed in Antarctica.
During the middle Oligocene, increasing glacial conditions on the continent are indicated by the presence of glauconite sands, that are interpreted to have formed on the shelf and then transported down the continental slope by advancing glaciers or as a result of sea-level lowering. The dominance of illite and a relatively high content of chlorite suggest predominantly physical weathering conditions on the continent. The high content of biogenic opal from the late Miocene to the late Pliocene resulted from increased upwelling processes at the continental margin due to increased wind strength related to global cooling. Partial melting of the ice-sheet occurred during an early Pliocene climate optimum as is shown by an increasing supply of predominantly current-derived sediment with a low mean grain size and peak values of smectite.
Primary productivity decreased at ~ 3 Ma due to the development of a permanent sea-ice cover close to the continent. Late Pleistocene sediments are characterized by planktonic foraminifers and biogenic opal, concentrated in distinct horizons reflecting climatic cycles. Isotopic analysis of AT. pachyderma produced a stratigraphy which resulted in a calculated sedimentation rate of 1 cm/k.y. during the Pleistocene. Primary productivity was highest during the last three interglacial maxima and decreased during glacial episodes as a result of increasing sea-ice coverage.
Related to:
Barker, P E; Kennett, James P; et al. (1988): Proceedings of the Ocean Drilling Program, 113 Initial Reports. Proceedings of the Ocean Drilling Program, Ocean Drilling Program, 113, 785 pp, https://doi.org/10.2973/odp.proc.ir.113.1988
Grobe, Hannes; Fütterer, Dieter K; Hubberten, Hans-Wolfgang; Kuhn, Gerhard; Mackensen, Andreas (1993): Zur Entwicklung der spätquartären Sedimentfazies im Südpolarmeer. Zeitschrift der Deutschen Geologischen Gesellschaft, 144, 330-351, hdl:10013/epic.11663.d001
Further details:
133-693A lab journal of grain size analysis
133-693B lab journal of grain size analysis
Grain size distribution of samples from Core 113-693A, cumulative and histogram plots (pdf, 154 MB)
Grain size distribution of the silt fraction of Core 113-693A, plots of sedigraph analysis (plots as pdf - grouped in cores; zip-archive, 420 MB)
Spieß, Volkhard; Grobe, Hannes (1988): Palaeomagnetic raw data of Hole 113-693A (pdf, 4 MB). hdl:10013/epic.68eb63a3-d107-4c9d-9719-9d1f894eab6f
Project(s):
Ocean Drilling Program (ODP)
Paleoenvironmental Reconstructions from Marine Sediments @ AWI (AWI_Paleo)
Coverage:
Median Latitude: -70.203239 * Median Longitude: -12.603033 * South-bound Latitude: -70.835330 * West-bound Longitude: -14.574400 * North-bound Latitude: -65.161000 * East-bound Longitude: 1.204900
Date/Time Start: 1987-01-20T03:15:00 * Date/Time End: 1988-01-18T13:40:00
Event(s):
113-690B * Latitude: -65.161000 * Longitude: 1.204900 * Date/Time Start: 1987-01-20T03:15:00 * Date/Time End: 1987-01-21T07:00:00 * Elevation: -2925.0 m * Penetration: 213.4 m * Recovery: 214.75 m * Location: South Atlantic Ocean * Campaign: Leg113 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 25 cores; 213.4 m cored; 0 m drilled; 100.6 % recovery
113-693B * Latitude: -70.832000 * Longitude: -14.574400 * Date/Time Start: 1987-02-05T03:15:00 * Date/Time End: 1987-02-07T21:00:00 * Elevation: -2371.0 m * Penetration: 401.2 m * Recovery: 92.16 m * Location: Weddell Sea * Campaign: Leg113 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 18 cores; 167.4 m cored; 0 m drilled; 55.1 % recovery
PS1481-3 (PS10/694) * Latitude: -70.835330 * Longitude: -13.927000 * Date/Time: 1987-01-26T12:57:00 * Elevation: -2505.0 m * Penetration: 12 m * Recovery: 10.76 m * Location: Kapp Norvegia * Campaign: ANT-V/4 (PS10) * Basis: Polarstern * Method/Device: Gravity corer (Kiel type) (SL) * Comment: 11 core sections: 0-0.8, 0.8-1.8, 1.8-2.8, 2.8-3.8, 3.8-4.8, 4.8-5.8, 5.8-6.8, 6.8-7.8, 7.8-8.8, 8.8-9.8, 9.8-10.76 m
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
9 datasets

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Datasets listed in this publication series

  1. Grobe, H (1990): Raw data files of X-ray diffraction analysis of the clay fraction from ODP Hole 113-693A. https://doi.org/10.1594/PANGAEA.396949
  2. Grobe, H (1990): Raw data files of X-ray diffraction analysis of the clay fraction from ODP Hole 113-693B. https://doi.org/10.1594/PANGAEA.396950
  3. Grobe, H; Fütterer, DK; Spieß, V (1990): Clay mineralogy of ODP Hole 113-690B. https://doi.org/10.1594/PANGAEA.52535
  4. Grobe, H; Fütterer, DK; Spieß, V (1990): Radiolarians of ODP Hole 113-693B. https://doi.org/10.1594/PANGAEA.52425
  5. Grobe, H; Fütterer, DK; Spieß, V (1990): Sedimentology of ODP Hole 113-693B. https://doi.org/10.1594/PANGAEA.52424
  6. Grobe, H; Fütterer, DK; Spieß, V (1990): Ice rafted debris (> 2 mm gravel) distribution in sediment core PS1481-3. https://doi.org/10.1594/PANGAEA.50202
  7. Grobe, H; Fütterer, DK; Spieß, V (1990): Paleomagnetic measurements on sediment core PS1481-3. https://doi.org/10.1594/PANGAEA.51322
  8. Grobe, H; Fütterer, DK; Spieß, V (1990): Sedimentology of core PS1481-3. https://doi.org/10.1594/PANGAEA.51660
  9. Grobe, H; Fütterer, DK; Spieß, V (1990): Sedimentology of core PS1591-1. https://doi.org/10.1594/PANGAEA.51681