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Lucchi, Renata G; Rebesco, Michele; Camerlenghi, Angelo; Busetti, Martina; Tomadin, Luciano; Villa, Giuliana; Persico, Davide; Morigi, Caterina; Bonci, M C; Giorgetti, Giovanna (2007): Magnetic susceptibility and documentation of sediment cores from the Antarctic Peninsula Pacific margin [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.671563, Supplement to: Lucchi, RG et al. (2002): Mid-late Pleistocene glacimarine sedimentary processes of a high-latitude, deep-sea sediment drift (Antarctic Peninsula Pacific margin). Marine Geology, 189(3-4), 343-370, https://doi.org/10.1016/S0025-3227(02)00470-X

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Abstract:
The effects of glaciation on sediment drifts is recognised from marked sedimentary facies variation in deep sea cores taken from the continental rise of the Antarctic Peninsula Pacific margin. Nineteen sediment cores were visually described, logged for magnetic susceptibility, and X-radiographed. About 1000 analyses were performed for grain size, clay minerals and biostratigraphy (foraminifera, nannofossils and diatoms). Four sediment types associated with distinct sedimentary processes are recognised based on textural/compositional analysis. (1) Hemipelagic mud forms the bulk of the interglacial sediment, and accumulated from the pelagic settling of bioclasts and ice-rafted/windtransported detritus. (2) Terrigenous mud forms the bulk of the glacial sediment, and accumulated from a combination of sedimentary processes including turbidity currents, turbid plumes, and bottom current reworking of nepheloid layers. (3) Silty deposits occurring as laminated layers and lenses, represent the lateral spillout of lowdensity turbidity currents. (4) Lastly, glacial/interglacial gravelly mud layers derive from settling of ice-rafted detritus. Five depositional settings are interpreted within sediment Drift 7, each characterised by the dominance/interaction of one or several depositional processes. The repetitive succession of typical sedimentary facies is inferred to reflect a sequence of four climatic stages (glaciation, glacial, deglaciation, and interglacial), each one characterised by a distinctive clay mineral assemblage and bioclastic content. Variations in clay mineral assemblage within interglacial stage 5 (core SED-06) suggest minor colder climatic fluctuations, possibly correlatable with substages 5a to 5e.
Coverage:
Median Latitude: -66.393696 * Median Longitude: -76.907098 * South-bound Latitude: -67.286000 * West-bound Longitude: -79.962500 * North-bound Latitude: -64.106833 * East-bound Longitude: -69.335167
Date/Time Start: 1997-03-02T19:09:00 * Date/Time End: 1997-03-15T02:41:00
Event(s):
SED-11 * Latitude: -67.143500 * Longitude: -76.368167 * Date/Time: 1997-03-02T19:09:00 * Elevation: -3725.0 m * Recovery: 4.99 m * Campaign: SEDANO-II * Basis: Explorer * Method/Device: Gravity corer (GC)
SED-12 * Latitude: -67.208000 * Longitude: -76.490833 * Date/Time: 1997-03-03T01:58:00 * Elevation: -3620.0 m * Recovery: 6.97 m * Campaign: SEDANO-II * Basis: Explorer * Method/Device: Gravity corer (GC)
SED-13 * Latitude: -67.286000 * Longitude: -76.646667 * Date/Time: 1997-03-03T06:01:00 * Elevation: -3559.0 m * Recovery: 6.69 m * Campaign: SEDANO-II * Basis: Explorer * Method/Device: Gravity corer (GC)
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
17 datasets

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Datasets listed in this publication series

  1. Lucchi, RG (2002): Documentation of sediment core SED-11. https://doi.org/10.1594/PANGAEA.74386
  2. Lucchi, RG (2002): Documentation of sediment core SED-12. https://doi.org/10.1594/PANGAEA.74387
  3. Lucchi, RG (2002): Documentation of sediment core SED-13. https://doi.org/10.1594/PANGAEA.74388
  4. Lucchi, RG (2002): Documentation of sediment core SED-14. https://doi.org/10.1594/PANGAEA.74389
  5. Lucchi, RG (2002): Documentation of sediment core SED-15. https://doi.org/10.1594/PANGAEA.74390
  6. Lucchi, RG (2002): Documentation of sediment core SED-16. https://doi.org/10.1594/PANGAEA.74391
  7. Lucchi, RG (2002): Documentation of sediment core SED-17. https://doi.org/10.1594/PANGAEA.74392
  8. Lucchi, RG (2002): Documentation of sediment core SED-18. https://doi.org/10.1594/PANGAEA.74393
  9. Lucchi, RG (2002): Documentation of sediment core SED-19. https://doi.org/10.1594/PANGAEA.74394
  10. Lucchi, RG (2002): Documentation of sediment core SED-20. https://doi.org/10.1594/PANGAEA.74395
  11. Lucchi, RG; Rebesco, M; Camerlenghi, A et al. (2007): Magnetic susceptibility of sediment core SED-11 from the Antarctic Peninsula Pacific margin. https://doi.org/10.1594/PANGAEA.671556
  12. Lucchi, RG; Rebesco, M; Camerlenghi, A et al. (2007): Magnetic susceptibility of sediment core SED-14 from the Antarctic Peninsula Pacific margin. https://doi.org/10.1594/PANGAEA.671557
  13. Lucchi, RG; Rebesco, M; Camerlenghi, A et al. (2007): Magnetic susceptibility of sediment core SED-15 from the Antarctic Peninsula Pacific margin. https://doi.org/10.1594/PANGAEA.671558
  14. Lucchi, RG; Rebesco, M; Camerlenghi, A et al. (2007): Magnetic susceptibility of sediment core SED-16 from the Antarctic Peninsula Pacific margin. https://doi.org/10.1594/PANGAEA.671559
  15. Lucchi, RG; Rebesco, M; Camerlenghi, A et al. (2007): Magnetic susceptibility of sediment core SED-17 from the Antarctic Peninsula Pacific margin. https://doi.org/10.1594/PANGAEA.671560
  16. Lucchi, RG; Rebesco, M; Camerlenghi, A et al. (2007): Magnetic susceptibility of sediment core SED-18 from the Antarctic Peninsula Pacific margin. https://doi.org/10.1594/PANGAEA.671561
  17. Lucchi, RG; Rebesco, M; Camerlenghi, A et al. (2007): Magnetic susceptibility of sediment core SED-19 from the Antarctic Peninsula Pacific margin. https://doi.org/10.1594/PANGAEA.671562