Citation:

PANGAEA.969564

Name: Coccolith abundance and paleoproductivity estimate of sediment core LaPAS-KF02 during the last 14 kyr BP
Published: 2024-08-01
License: https://creativecommons.org/licenses/by/4.0/
Keywords: coccolith abundances; paleoproductivity; South Atlantic

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Abstract:

Here, we present the percentages of coccolith species, the total absolute abundance of coccoliths, and the paleoproductivity estimate obtained from marine sediment core LaPAS-KF02 retrieved from the continental slope of the São Paulo Bight at the Brazilian continental margin (25.84°S, 45.2°W; water depth 827 m). The data presented were used to infer changes in coccolithophore assemblages and productivity in the subtropical western South Atlantic during the last 14,000 years BP. At least 300 coccoliths were counted under a polarizing microscope at 1000x magnification. Slides for coccolith abundances were prepared using the random settling technique. Coccolith assemblages were analyzed following the taxonomy described in Nannotax3 (https://www.mikrotax.org/Nannotax3/index.html).

Keyword(s):

coccolith abundances; paleoproductivity; South Atlantic

Supplement to:

Ferrarese, Heliane Bevervanso; Toledo, Felipe A L; Costa, Karen Badaraco (2024): Coccolithophore and paleoproductivity variations in the subtropical western South Atlantic since the late deglaciation. Journal of South American Earth Sciences, 140, 104880, https://doi.org/10.1016/j.jsames.2024.104880

Funding:

Conselho Nacional de Desenvolvimento Científico e Tecnológico, grant/award no. 140621/2018-0

Coordenação de Aperfeicoamento de Pessoal de Nível Superior (CAPES), grant/award no. 8881.712022/2022-1

Coverage:

Latitude: -25.840000 * Longitude: -45.200000

Date/Time Start: 1999-05-27T00:00:00 * Date/Time End: 1999-05-27T00:00:00

Minimum Elevation: -827.0 m * Maximum Elevation: -827.0 m

Event(s):

LaPAS-KF02 * Latitude: -25.840000 * Longitude: -45.200000 * Date/Time: 1999-05-27T00:00:00 * Elevation: -827.0 m * Penetration: 4.89 m * Location: South Atlantic Ocean * Method/Device: Core drilling (CDRILL)

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Comment
1	Depth, sampling	Depth sampling	m	Ferrarese, Heliane Bevervanso
2	AGE	Age	ka BP	Ferrarese, Heliane Bevervanso	Geocode
3	Coccolithus pelagicus ssp. braarudii	C. pelagicus ssp. braarudii	%	Ferrarese, Heliane Bevervanso
4	Florisphaera profunda	F. profunda	%	Ferrarese, Heliane Bevervanso
5	Placoliths, small	Placoliths small	%	Ferrarese, Heliane Bevervanso
6	Gephyrocapsa oceanica	G. oceanica	%	Ferrarese, Heliane Bevervanso
7	Helicosphaera spp.	Helicosphaera spp.	%	Ferrarese, Heliane Bevervanso
8	Umbilicosphaera spp.	Umbilicosphaera spp.	%	Ferrarese, Heliane Bevervanso
9	Coccoliths, total	Cocco	10⁶ #/g	Ferrarese, Heliane Bevervanso
10	Primary production of carbon per area, yearly	PP C area	g/m²/a	Ferrarese, Heliane Bevervanso

License:

Creative Commons Attribution 4.0 International (CC-BY-4.0)

Status:

Curation Level: Enhanced curation (CurationLevelC)

Size:

549 data points

Data

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

1 Depth sampling [m]	2 Age [ka BP]	3 C. pelagicus ssp. braarudii [%]	4 F. profunda [%]	5 Placoliths small [%]	6 G. oceanica [%]	7 Helicosphaera spp. [%]	8 Umbilicosphaera spp. [%]	9 Cocco [10⁶ #/g]	10 PP C area [g/m²/a]
0.010	0.40	0.00	41.35	40.98	11.66	2.91	0.55	451	181.5
0.050	0.42	0.00	49.35	37.26	8.55	1.13	1.45	466	150.9
0.090	0.43	0.00	47.57	34.95	12.30	1.46	0.49	460	157.2
0.130	0.45	0.16	45.02	38.34	11.58	2.12	0.98	529	166.7
0.170	0.47	0.34	49.31	35.74	9.97	0.86	1.03	494	151.1
0.210	0.48	0.00	35.35	44.87	13.19	1.47	1.28	693	208.4
0.250	0.50	0.00	39.88	34.52	20.63	2.18	0.60	341	187.7
0.330	0.53	0.36	41.20	39.38	15.61	1.63	0.18	359	182.1
0.410	0.56	0.00	33.26	36.44	25.00	1.27	1.27	407	218.6
0.490	0.59	0.19	38.66	31.04	24.54	1.49	0.74	460	193.1
0.570	0.61	0.23	29.93	36.96	25.62	3.85	0.45	378	236.0
0.650	0.63	0.41	34.44	35.89	23.24	1.45	1.45	408	212.8
0.730	0.65	0.00	26.27	47.46	19.43	2.87	1.10	468	256.8
0.810	0.67	0.00	44.92	38.03	13.93	0.98	0.82	446	167.2
0.890	0.69	0.00	31.24	48.31	16.18	2.47	0.67	323	229.1
0.970	0.71	0.22	31.30	34.35	28.04	2.61	0.22	475	228.7
1.050	0.96	0.19	35.77	34.04	21.35	4.04	1.92	453	206.3
1.130	1.29	0.16	41.05	42.69	11.82	1.81	0.82	522	182.7
1.210	1.61	0.17	45.69	33.45	16.72	1.55	0.69	426	164.2
1.290	1.94	0.19	38.62	36.14	16.44	4.59	1.34	442	193.2
1.370	2.26	0.00	41.14	35.11	18.42	2.07	1.20	431	182.4
1.450	2.59	0.00	44.17	39.22	11.31	1.59	2.12	487	170.1
1.530	2.89	0.00	36.99	40.65	15.04	1.63	1.63	416	200.6
1.610	3.16	0.00	33.08	44.87	16.25	2.51	0.97	443	219.6
1.690	3.44	0.00	37.04	44.74	13.36	1.01	1.21	627	200.4
1.770	3.71	0.00	30.47	44.02	16.48	3.39	2.26	575	233.1
1.845	3.97	0.00	27.09	46.95	18.96	2.48	1.58	569	252.0
2.240	5.33	0.41	29.55	50.83	15.08	2.48	0.21	494	238.1
2.400	5.86	0.23	22.62	52.94	21.49	1.13	0.68	555	279.3
2.480	6.11	0.00	30.43	53.04	11.74	1.52	0.65	595	233.3
2.560	6.37	0.43	21.51	47.74	24.09	2.58	1.08	479	286.6
2.640	6.62	0.00	20.95	57.38	15.00	3.10	0.48	542	290.2
2.720	6.87	0.22	28.70	50.00	15.65	1.74	1.30	586	242.8
2.800	7.12	0.00	20.81	54.78	18.90	1.44	1.20	718	291.2
2.880	7.37	0.22	30.65	47.61	15.87	0.87	1.09	382	232.2
2.960	7.63	0.00	31.66	49.48	14.05	1.05	0.63	416	226.8
3.040	7.88	0.92	21.94	52.19	18.71	1.15	1.62	729	283.7
3.080	8.00	1.76	28.13	46.15	18.24	1.54	1.54	331	246.0
3.120	8.13	1.52	26.90	46.42	19.52	1.74	0.43	389	253.1
3.200	8.43	1.04	22.19	54.05	18.02	1.57	0.26	392	282.1
3.280	8.86	0.46	22.97	52.20	18.79	1.39	0.70	425	277.1
3.360	9.30	0.67	24.50	46.99	24.28	0.45	0.45	576	267.5
3.440	9.74	0.22	23.68	48.03	22.59	1.32	1.10	575	272.6
3.520	10.17	0.42	28.66	43.52	24.20	0.64	0.64	487	243.0
3.600	10.61	0.65	29.87	40.26	23.81	2.16	0.00	490	236.4
3.680	10.80	0.00	20.79	44.47	30.26	0.79	0.79	382	291.3
3.760	10.99	0.00	18.72	43.33	31.54	3.33	0.26	403	305.6
3.840	11.19	0.49	17.94	46.44	30.22	1.47	1.23	419	311.1
3.920	11.38	0.66	25.60	36.54	33.26	1.97	0.44	481	260.8
4.000	11.57	0.70	23.02	30.23	43.26	2.33	0.00	440	276.7
4.080	11.76	0.84	27.64	33.54	31.43	4.43	0.42	487	248.8
4.180	12.00	0.00	21.58	38.98	33.18	3.02	0.70	319	286.1
4.240	12.23	0.25	21.36	40.20	30.90	3.52	0.25	351	287.6
4.320	12.59	0.00	23.47	42.60	30.87	1.02	0.26	281	273.9
4.400	12.94	0.22	23.09	34.75	37.89	0.45	0.22	463	276.3
4.480	13.26	0.00	26.00	27.25	42.75	1.50	0.50	416	258.4
4.560	13.59	0.00	27.58	34.29	35.01	0.48	0.48	356	249.2
4.640	13.92	0.00	24.68	27.71	44.59	1.30	0.65	392	266.4
4.720	14.09	0.26	19.79	36.76	40.10	0.77	0.26	344	298.1
4.805	14.27	0.00	25.06	31.44	41.61	0.24	0.00	358	264.1
4.880	14.44	0.23	26.22	23.90	45.24	1.86	0.46	279	257.1