Zaragosi, Sebastien; Bourillet, Jean Francois; Eynaud, Frédérique; Toucanne, Samuel; Van Toer, Aurélie; Lanfumey, Valentine (2006): (Table 1) Age determination of sediment cores MD925-2002 and MD03-2690 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.816914, Supplement to: Zaragosi, S et al. (2006): The impact of the last European deglaciation on the deep-sea turbidite systems of the Celtic-Armorican margin (Bay of Biscay). Geo-Marine Letters, 26(6), 317-329, https://doi.org/10.1007/s00367-006-0048-9
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Abstract:
The compilation of results obtained on three giant piston cores from the Whittard, Shamrock and Guilcher turbidite levees reveals a high-resolution stratigraphic record for the Bay of Biscay. Due to the abundance of reworked sediments in these sedimentary environments, a specific methodological approach, based on an X-ray-assisted subsampling phase associated with sedimentological, geochemical and micropalaeontological analyses, was implemented. With an accurate chronological framework, this multi-proxy investigation provides observations on the 'Fleuve Manche' palaeoriver and the British-Irish Ice Sheet (BIS) histories over the last 20,000 years. The results obtained highlight the direct influence of the decay of the BIS on the Bay of Biscay deep-sea clastic sedimentation during the last European deglacial phase. During this period, the annual BIS cycle of meltwater seems enough to generate seasonal turbidity currents associated with exceptional sedimentation rates in all the Celtic and Armorican turbidite systems. With very high sedimentation rates, the turbidite levees represent the main deep-sea clastic depositional area. Long coring combined with a very careful subsampling method can provide continuous high-resolution palaeoenvironmental signals.
Coverage:
Median Latitude: 47.236415 * Median Longitude: -8.141832 * South-bound Latitude: 47.020830 * West-bound Longitude: -8.533833 * North-bound Latitude: 47.452000 * East-bound Longitude: -7.749830
Date/Time Start: 1995-05-30T00:00:00 * Date/Time End: 1995-05-30T00:00:00
Minimum DEPTH, sediment/rock: 0.00 m * Maximum DEPTH, sediment/rock: 35.76 m
Event(s):
MD03-2690 * Latitude: 47.020830 * Longitude: -7.749830 * Elevation: -4340.0 m * Location: Bay of Biscay * Campaign: MD133 (SEDICAR) * Basis: Marion Dufresne (1995) * Method/Device: Calypso Corer (CALYPSO)
MD95-2002 (MD952002) * Latitude: 47.452000 * Longitude: -8.533833 * Date/Time: 1995-05-30T00:00:00 * Elevation: -2174.0 m * Recovery: 30 m * Location: Meriadzec * Campaign: MD101 (IMAGES I) * Basis: Marion Dufresne (1995) * Method/Device: Calypso Corer (CALYPSO) * Comment: XX Sections, OK
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | ||||
| 2 | DEPTH, sediment/rock | Depth sed | m | Geocode | ||
| 3 | Age, dated | Age dated | ka | Zaragosi, Sebastien | Age, 14C milieu/reservoir corrected | |
| 4 | Age, dated standard deviation | Age dated std dev | ± | Zaragosi, Sebastien | Age, 14C milieu/reservoir corrected | |
| 5 | Calendar age | Cal age | ka BP | Zaragosi, Sebastien | Age, 14C milieu/reservoir corrected | |
| 6 | Age, dated material | Dated material | Zaragosi, Sebastien | |||
| 7 | Sample ID | Sample ID | Zaragosi, Sebastien |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
155 data points
Data
| 1 Event | 2 Depth sed [m] | 3 Age dated [ka] | 4 Age dated std dev [±] | 5 Cal age [ka BP] | 6 Dated material | 7 Sample ID |
|---|---|---|---|---|---|---|
| MD95-2002 | 0.00 | 1.66 | 0.07 | 1.624 | Globigerina bulloides bulloides | LSCE-99360 |
| MD95-2002 | 1.40 | 9.08 | 0.09 | 10.329 | Globigerina bulloides bulloides | LSCE-99361 |
| MD95-2002 | 2.40 | 10.79 | 0.10 | 12.809 | Neogloboquadrina pachyderma s. | LSCE-99362 |
| MD95-2002 | 4.20 | 13.33 | 0.13 | 15.798 | Neogloboquadrina pachyderma s. | LSCE-99363 |
| MD95-2002 | 4.54 | 13.80 | 0.11 | 16.426 | Neogloboquadrina pachyderma s. | LSCE-99364 |
| MD95-2002 | 4.63 | 14.02 | 0.12 | 16.709 | Neogloboquadrina pachyderma s. | LSCE-99365 |
| MD95-2002 | 5.10 | 14.17 | 0.13 | 16.897 | Neogloboquadrina pachyderma s. | LSCE-99366 |
| MD95-2002 | 5.50 | 14.43 | 0.07 | 17.327 | Neogloboquadrina pachyderma s. | Artemis-003242 |
| MD95-2002 | 8.69 | 14.90 | 0.07 | 18.241 | Neogloboquadrina pachyderma s. | Artemis-003243 |
| MD95-2002 | 8.75 | 14.88 | 0.16 | 18.224 | Neogloboquadrina pachyderma s. | Artemis-003244 |
| MD95-2002 | 13.20 | 18.45 | 0.09 | 22.062 | Globigerina bulloides bulloides | Artemis-003245 |
| MD95-2002 | 13.40 | 19.03 | 0.10 | 22.514 | Globigerina bulloides bulloides | Artemis-003246 |
| MD95-2002 | 13.90 | 20.22 | 0.08 | 24.690 | Globigerina bulloides bulloides | Artemis-003247 |
| MD95-2002 | 14.24 | 19.84 | 0.06 | 23.777 | Neogloboquadrina pachyderma s. | Beta-123696 |
| MD95-2002 | 14.53 | 20.03 | 0.08 | 23.984 | Neogloboquadrina pachyderma s. | Beta-123698 |
| MD95-2002 | 14.64 | 20.20 | 0.08 | 24.174 | Neogloboquadrina pachyderma s. | Beta-123699 |
| MD95-2002 | 15.34 | 21.85 | 0.07 | 25.734 | Neogloboquadrina pachyderma s. | Beta-123697 |
| MD95-2002 | 16.10 | 24.01 | 0.25 | 28.222 | Neogloboquadrina pachyderma s. | Beta-99367 |
| MD95-2002 | 16.64 | 25.42 | 0.23 | 29.830 | Neogloboquadrina pachyderma s. | Beta-99368 |
| MD03-2690 | 1.51 | 8.73 | 0.06 | 9.722 | Globigerina bulloides bulloides | Artemis-001894 |
| MD03-2690 | 2.45 | 9.45 | 0.06 | 10.603 | Globigerina bulloides bulloides | Artemis-003233 |
| MD03-2690 | 6.26 | 12.62 | 0.06 | 14.790 | Globigerina bulloides bulloides | Artemis-003234 |
| MD03-2690 | 6.92 | 12.77 | 0.07 | 14.972 | Neogloboquadrina pachyderma s. | Artemis-003235 |
| MD03-2690 | 10.94 | 13.84 | 0.07 | 16.266 | Neogloboquadrina pachyderma s. | Artemis-003236 |
| MD03-2690 | 12.13 | 14.03 | 0.07 | 16.495 | Neogloboquadrina pachyderma s. | Artemis-003237 |
| MD03-2690 | 18.85 | 14.65 | 0.07 | 17.241 | Neogloboquadrina pachyderma s. | Artemis-003238 |
| MD03-2690 | 22.33 | 14.96 | 0.07 | 17.613 | Neogloboquadrina pachyderma s. | Artemis-003239 |
| MD03-2690 | 22.76 | 15.08 | 0.07 | 17.760 | Neogloboquadrina pachyderma s. | Poznan Radiocarb. Lab. |
| MD03-2690 | 31.56 | 18.85 | 0.10 | 22.234 | Globigerina bulloides bulloides | Artemis-003240 |
| MD03-2690 | 33.76 | 20.56 | 0.07 | 24.236 | Neogloboquadrina pachyderma s. | Artemis-003241 |
| MD03-2690 | 35.76 | 21.88 | 0.12 | 25.770 | Neogloboquadrina pachyderma s. | Poznan Radiocarb. Lab. |