Daniau, Anne-Laure; Sanchez Goñi, Maria Fernanda; Duprat, Josette M (2009): (Table 2) Age determination of sediment core MD04-2845 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.816897, Supplement to: Daniau, A-L et al. (2009): Last glacial fire regime variability in western France inferred from microcharcoal preserved in core MD04-2845, Bay of Biscay. Quaternary Research, 71(3), 385-396, https://doi.org/10.1016/j.yqres.2009.01.007
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Abstract:
High resolution multiproxy analysis (microcharcoal, pollen, organic carbon, Neogloboquadrina pachyderma (s), ice rafted debris) of the deep-sea record MD04-2845 (Bay of Biscay) provides new insights for understanding mechanisms of fire regime variability of the last glacial period in western France. Fire regime of western France closely follows Dansgaard-Oeschger climatic variability and presents the same pattern than that of southwestern Iberia, namely low fire regime associated with open vegetation during stadials including Heinrich events, and high fire regime associated with open forest during interstadials. This supports a regional climatic control on fire regime for western Europe through fuel availability for the last glacial period. Additionally, each of Heinrich events 6, 5 and 4 is characterised by three episodes of fire regime, with a high regime bracketed by lower fire regime episodes, related to vegetational succession and complex environmental condition changes.
Further details:
Bard, Edouard; Rostek, Frauke; Guillemette, Ménot-Combes (2004): Radiocarbon calibration beyond 20,000 14C yr B.P. by means of planktonic foraminifera of the Iberian Margin. Quaternary Research, 61(2), 204-214, https://doi.org/10.1016/j.yqres.2003.11.006
Coverage:
Latitude: 45.347670 * Longitude: -5.219500
Minimum DEPTH, sediment/rock: 0.0520 m * Maximum DEPTH, sediment/rock: 0.0900 m
Event(s):
MD04-2845 * Latitude: 45.347670 * Longitude: -5.219500 * Elevation: -4175.0 m * Location: North East Atlantic * Campaign: MD141 (ALIENOR) * Basis: Marion Dufresne (1995) * Method/Device: Calypso Corer (CALYPSO)
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Sample ID | Sample ID | Daniau, Anne-Laure | |||
| 2 | Datum level | DL | Daniau, Anne-Laure | |||
| 3 | DEPTH, sediment/rock | Depth sed | m | Geocode | ||
| 4 | Age, dated material | Dated material | Daniau, Anne-Laure | |||
| 5 | Age, dated | Age dated | ka | Daniau, Anne-Laure | Age, 14C milieu/reservoir corrected (-400 yr) | |
| 6 | Age, dated standard deviation | Age dated std dev | ± | Daniau, Anne-Laure | Age, 14C milieu/reservoir corrected (-400 yr) | |
| 7 | Age, minimum/young | Age min | ka | Daniau, Anne-Laure | 95.4 % 2 sigma) Cal BP age range | |
| 8 | Age, maximum/old | Age max | ka | Daniau, Anne-Laure | 95.4 % 2 sigma) Cal BP age range | |
| 9 | Median probability age | Med Prob age | ka BP | Daniau, Anne-Laure | ||
| 10 | Age model | Age model | ka | Daniau, Anne-Laure | Bard et al. (2004) | |
| 11 | Age model, optional | Age model opt | ka | Daniau, Anne-Laure | Control points based on MD95-2042 chronology | |
| 12 | Comment | Comment | Daniau, Anne-Laure |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
68 data points
Data
| 1 Sample ID | 2 DL | 3 Depth sed [m] | 4 Dated material | 5 Age dated [ka] | 6 Age dated std dev [±] | 7 Age min [ka] | 8 Age max [ka] | 9 Med Prob age [ka BP] | 10 Age model [ka] | 11 Age model opt [ka] | 12 Comment |
|---|---|---|---|---|---|---|---|---|---|---|---|
| SacA-002960 | 0.0520 | Globigerina bulloides | 16.89 | 150 | 19.782 | 20.365 | 20.030 | ||||
| HE2/GIS2 | 0.0680 | 23.95 | |||||||||
| SacA-002961 | 0.0690 | Neogloboquadrina pachyderma (s) | 20.42 | 140 | 24.016 | 24.890 | 24.440 | ||||
| SacA-002962 | 0.0710 | Neogloboquadrina pachyderma (s) | 20.71 | 140 | 24.426 | 25.405 | 24.880 | ||||
| SacA-002963 | 0.0770 | Neogloboquadrina pachyderma (s) | 21.86 | 160 | 25.82 | ||||||
| SacA-002964 | 0.0790 | Neogloboquadrina pachyderma (s) | 22.15 | 170 | 26.14 | ||||||
| Base HE2 | 0.0810 | 26.25 | |||||||||
| SacA-002965 | 0.0850 | Globigerina bulloides | 24.05 | 210 | 28.22 | ||||||
| Onset GIS3 | 0.0850 | 27.84 | |||||||||
| SacA-002966 | 0.0860 | Neogloboquadrina pachyderma (s) | 24.68 | 230 | 28.89 | levels presenting small AMS 14C inversions | |||||
| SacA-002967 | 0.0870 | Neogloboquadrina pachyderma (s) | 24.63 | 230 | 28.84 | levels presenting small AMS 14C inversions | |||||
| SacA-002968 | 0.0890 | Globigerina bulloides | 25.23 | 240 | 29.48 | levels presenting small AMS 14C inversions | |||||
| HE3/GIS4 | 0.0892 | 29.00 | |||||||||
| SacA-002969 | 0.0900 | Neogloboquadrina pachyderma (s) | 24.87 | 240 | 29.10 | levels presenting small AMS 14C inversions |