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Akabane, Thomas K; Chiessi, Cristiano Mazur; Hirota, Marina; Bouimetarhan, Ilham; Prange, Matthias; Mulitza, Stefan; Bertassoli Junior, Dailson José; Häggi, Christoph; Staal, Arie; Lohmann, Gerrit; Boers, Niklas; Daniau, Anne-Laure; Oliveira, Rafael S; Campos, Marília C; Shi, Xiaoxu; de Oliveira, Paulo Eduardo (2024): Microcharcoal concentration of sediment core GeoB16224-1 from Amazonia, off French Guyana coast [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.968665

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Published: 2024-11-04 • DOI registered: 2024-11-04

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Abstract:
Microcharcoal data from marine sediment core GeoB16224-1 (gravity core, 6.65°N, 52.09°W; 2510 m water depth) retrieved off the mouth of the Amazon River. This dataset comprises 48 analyzed samples continuously spanning from ca. 25 - 12.5 cal ka BP, along with 6 samples from the period between ca. 6.2 - 4.9 cal ka BP. Microcharcoal data is expressed as concentration and influx of particles and surface area per sediment dry mass. These data were used to investigate fire regime changes from the Amazon basin during the last 25 ka.
Keyword(s):
Amazon; Late Quaternary; Marine Sediment Core; Microcharcoal; Pollen
Supplement to:
Akabane, Thomas K; Chiessi, Cristiano Mazur; Hirota, Marina; Bouimetarhan, Ilham; Prange, Matthias; Mulitza, Stefan; Bertassoli Junior, Dailson José; Häggi, Christoph; Staal, Arie; Lohmann, Gerrit; Boers, Niklas; Daniau, Anne-Laure; Oliveira, Rafael S; Campos, Marília C; Shi, Xiaoxu; de Oliveira, Paulo Eduardo (2024): Weaker Atlantic overturning circulation increases the vulnerability of northern Amazon forests. Nature Geoscience, https://doi.org/10.1038/s41561-024-01578-z
Funding:
National Council for Scientific and Technological Development (CNPq), grant/award no. 312458/2020-7
São Paulo Research Foundation (FAPESP), grant/award no. 2018/15123-4
São Paulo Research Foundation (FAPESP), grant/award no. 2019/19948-0
São Paulo Research Foundation (FAPESP), grant/award no. 2019/24349-9
São Paulo Research Foundation (FAPESP), grant/award no. 2019/24977-0
São Paulo Research Foundation (FAPESP), grant/award no. 2019/25179-0
São Paulo Research Foundation (FAPESP), grant/award no. 2021/13129-8
Coverage:
Latitude: 6.656333 * Longitude: -52.083167
Date/Time Start: 2012-03-08T16:07:00 * Date/Time End: 2012-03-08T16:07:00
Minimum DEPTH, sediment/rock: 0.040 m * Maximum DEPTH, sediment/rock: 3.500 m
Event(s):
GeoB16224-1 (087-1) * Latitude: 6.656333 * Longitude: -52.083167 * Date/Time: 2012-03-08T16:07:00 * Elevation: -2510.0 m * Recovery: 7.6 m * Location: French Guiana * Campaign: MSM20/3 (AMADEUS) * Basis: Maria S. Merian * Method/Device: Gravity corer (Kiel type) (SL) * Comment: Geology, 760 cm
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1 DEPTH, sediment/rockDepth sedmAkabane, Thomas KGeocode
2 AGEAgeka BPAkabane, Thomas KGeocode
3 MicrocharcoalmyChar#/gAkabane, Thomas K
4 Microcharcoal surface, per unit sediment dry massmyChar surf/sed dmµm2/gAkabane, Thomas K
5 Microcharcoal, flux, particlesmyChar flux#*cm/g/aAkabane, Thomas K
6 Microcharcoal, area, fluxmyChar area flux(µm/g)*(cm/a)Akabane, Thomas K
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
216 data points

Data

Download dataset as tab-delimited text — use the following character encoding:

1 
Depth sed [m]		2 
Age [ka BP]		3 
myChar [#/g]		4 
myChar surf/sed dm [µm2/g]		5 
myChar flux [#*cm/g/a]		6 
myChar area flux [(µm/g)*(cm/a)]
0.0404.884389072943345.44501296.8991640098111.514830
0.0604.944227941766289.3950712.3120406055196.543600
0.0805.00811008967259.4138410.7398152036091.769170
0.4806.08010901787893.4768320.6315068023173.337550
0.5006.1485613340198.8528151.714706509194.563588
0.5206.22211062691340.116028.268422261766.721268
0.68012.483111711021947.4950173.4675408015868.749920
0.73012.739271234187355.9360410.9492542063444.786900
0.79013.20111397936213.3693208.4815729017125.854320
0.85013.529220161535332.6390550.3913524038383.315970
0.91013.769394912589644.39801023.5139400067118.213340
1.03014.232392943612106.47801097.60081000100896.829000
1.08014.411169254925644.1890452.52764930131701.716300
1.13014.598164322350795.3280406.7224379058188.003170
1.18014.80016674814926.5988416.8604455020373.164970
1.23014.95610849786819.9623279.6149565020278.865010
1.33015.388602498200991.12501483.96922300201994.855300
1.38015.59116432967600.2610432.4101708025463.164760
1.43015.781387164937492.7790944.29888890120426.653100
1.50016.06810901930968.2007258.5329146022078.297250
1.56016.32111062753628.4854264.4251869018015.023560
1.62016.572280671937425.2340666.8238181046029.541190
1.73017.03511227782506.8158265.5007364018505.228750
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2.00018.163169251778866.1310377.7797787039706.833270
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2.16018.915564156521253.15701196.68422800138329.612400
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2.40020.0995613235363.2927112.719761904726.170536
2.45020.348502714405326.63501009.4556890088460.374200
2.48520.59210954624370.7098289.7987035016517.743650
2.55020.77811283644421.9447298.4926646017048.199600
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3.23023.697275203982123.2640561.6238290081267.821720
3.32024.138391002778652.6910781.9916739055573.053810
3.35024.288282081798571.9300555.2668663035404.959250
3.40024.542620579217521.55601222.79064000181626.040500
3.44024.7455670652526.6874119.3654877013737.403940
3.50025.030389073108353.8160888.2870984070966.982100