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Stow, Dorrik A V; Smillie, Zeinab; Wilkin, Jonathan; Pan, Jiawei; Esegbue, Onoriode; Bahr, André; Ducassou, Emmanuelle: Sediment and geochemistry of bi-gradational contourite sequences from the Gulf of Cadiz [dataset bundled publication]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.937307 (dataset in review)

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Abstract:
The contourite depositional systems at the Gulf of Cadiz during IODP 339 are characterised by the repetition of bi-gradational sequences. These sequences are of an average thickness of 3 m (typical range 0.5-7.5 m) each. The nature of these sequences and the forces that derive such sedimentation patterns are not well understood. The data provided covers two complete bi-gradational sequences from Site U1389. Grain Size fractions from both bulk and carbonate-free analyses are given as well as various grain size parameters are used to decipher the current energy and depositional process. A new approach was used here to assess each size fraction's behaviour separately and to used combined sortable silt and fine sand fractions (SSS - sortable silt and sand proxy) to calculate the current speed. In conclusion, aspects of the contourite sequences here justify the dual effects of long-term variation in bottom-current velocity and episodic changes in sediment supply (both lithogenic and biogenic).
Keyword(s):
contourite; contourites; grain size analysis; IODP 339; isotope analysis; U1389A
Related to:
Stow, Dorrik A V; Smillie, Zeinab; Wilkin, Jonathan; Pan, Jiawei; Esegbue, Onoriode; Bahr, André; Ducassou, Emmanuelle (submitted): Anatomy of the bi-gradational contourite sequence: case study from the Gulf of Cadiz. Marine Geology
Further details:
IODP Expedition 339 Scientists (2012): Environmental significance of the Mediterranean Outflow Water and its global implications. IODP Preliminary Report, Integrated Ocean Drilling Program, https://doi.org/10.2204/iodp.pr.339.2012
Coverage:
Latitude: 36.425305 * Longitude: -7.278178
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0) (License comes into effect after moratorium ends)
Size:
10 datasets

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Datasets listed in this bundled publication

  1. Stow, DAV; Smillie, Z; Wilkin, J et al. (in review): Bulk analysis from IODP Core 339-U1389A-11H. https://doi.pangaea.de/10.1594/PANGAEA.937296
  2. Stow, DAV; Smillie, Z; Wilkin, J et al. (in review): Carbonate free bulk analysis from IODP Core 339-U1389A-11H. https://doi.pangaea.de/10.1594/PANGAEA.937298
  3. Stow, DAV; Smillie, Z; Wilkin, J et al. (in review): Carbonate free grain size analysis from IODP Core 339-U1389A-11H. https://doi.pangaea.de/10.1594/PANGAEA.937300
  4. Stow, DAV; Smillie, Z; Wilkin, J et al. (in review): Grain size analysis from IODP Core 339-U1389A-11H. https://doi.pangaea.de/10.1594/PANGAEA.937299
  5. Stow, DAV; Smillie, Z; Wilkin, J et al. (in review): Isotope analysis from IODP Core 339-U1389A-11H. https://doi.pangaea.de/10.1594/PANGAEA.937301
  6. Stow, DAV; Smillie, Z; Wilkin, J et al. (in review): Sinking velocity of silt and sand from IODP Core 339-U1389A-11H. https://doi.pangaea.de/10.1594/PANGAEA.937302
  7. Stow, DAV; Smillie, Z; Wilkin, J et al. (in review): Bulk analysis from IODP Core 339-U1389A-25X. https://doi.pangaea.de/10.1594/PANGAEA.937303
  8. Stow, DAV; Smillie, Z; Wilkin, J et al. (in review): Carbonate free bulk analysis from IODP Core 339-U1389A-25X. https://doi.pangaea.de/10.1594/PANGAEA.937304
  9. Stow, DAV; Smillie, Z; Wilkin, J et al. (in review): Isotope analysis from IODP Core 339-U1389A-25X. https://doi.pangaea.de/10.1594/PANGAEA.937305
  10. Stow, DAV; Smillie, Z; Wilkin, J et al. (in review): Sinking velocity of silt and sand from IODP Core 339-U1389A-25X. https://doi.pangaea.de/10.1594/PANGAEA.937306