Citation:

j.revpalbo.2019.104128

Name: Organic-walled dinoflagellate cysts record of marine core GeoB3202-1
Published: 2019-12-10
License: https://creativecommons.org/licenses/by/4.0/
Keywords: Dinocysts analysis; Marine environmental changes; Pollen; Southeastern Brazil; tropical Atlantic

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Abstract:

The tropical Atlantic has been considered as a huge energy source, contributing to the tremendous heat and moisture that can be delivered from the equatorial region towards the high latitudes through ocean current circulation. However, there is still debate whether the cold waters from the south ever had an influence on the tropical Atlantic off southeastern Brazil during glacial times. This study aims to reconstruct the tropical Atlantic environmental conditions off southeastern Brazil, to investigate whether this area had been influenced by cold waters from the south during the last glacial maximum (LGM), and to correlate the marine environmental changes with the climate and vegetation changes on the continent. This study provides the first long dinocyst record off southeastern Brazil of the last ca. 50 kyr. In combination with the freshwater algae and pollen records, it contributes to a better understanding of marine and terrestrial environmental changes in tropical regions of southeastern Brazil. The study indicates a relatively low sea surface temperature (SST), more eutrophic and unstable sea surface conditions in tropical South Atlantic off southeastern Brazil from 50 to 45 cal kyr BP. From 45 to 25 cal kyr BP, SST was relatively high, stable and less eutrophic conditions occurred, indicating a stable influence by the Brazil Current (BC). From 25 to 12 cal kyr BP, in particular during the LGM, SST decreased markedly, suggesting the occurrence of colder water masses from the south. Since the Lateglacial, SST increased and became relatively stable.

Keyword(s):

Dinocysts analysis; Marine environmental changes; Pollen; Southeastern Brazil; tropical Atlantic

Project(s):

Center for Marine Environmental Sciences (MARUM)

Geosciences, University of Bremen (GeoB)

Coverage:

Latitude: -21.616667 * Longitude: -39.978333

Date/Time Start: 1995-04-11T00:00:00 * Date/Time End: 1995-04-11T00:00:00

Minimum DEPTH, sediment/rock: 0.03 m * Maximum DEPTH, sediment/rock: 5.03 m

Event(s):

GeoB3202-1 * Latitude: -21.616667 * Longitude: -39.978333 * Date/Time: 1995-04-11T00:00:00 * Elevation: -1090.0 m * Recovery: 5.1 m * Location: off Rio Paraiba do Sul * Campaign: * Basis: * Method/Device: Gravity corer (Kiel type) (SL)

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Comment
1	DEPTH, sediment/rock	Depth sed	m	Gu, Fang	Geocode
2	AGE	Age	ka BP	Gu, Fang	Geocode
3	Sedimentation rate	SR	cm/ka	Gu, Fang
4	Mass	Mass	g	Gu, Fang
5	Lycopodium (counted)	Lyc(ct)	#	Gu, Fang
6	Lycopodium	Lyc	#	Gu, Fang
7	Operculodinium centrocarpum	O. centrocarpum	%	Gu, Fang	group D
8	Operculodinium israelianum	O. israelianum	%	Gu, Fang	group D
9	Polysphaeridium zoharyi	P. zoharyi	%	Gu, Fang	group D
10	Bitectatodinium tepikiense	B. tepikiense	%	Gu, Fang	group D
11	Pentapharsodinium dalei	P. dalei	%	Gu, Fang	group D
12	Lingulodinium machaerophorum	L. machaerophorum	%	Gu, Fang	group D
13	Tuberculodinium vancampoae	T. vancampoae	%	Gu, Fang	group D
14	Spiniferites bentori	S. bentori	%	Gu, Fang	group D
15	Spiniferites mirabilis	S. mirabilis	%	Gu, Fang	group D
16	Spiniferites ramosus	S. ramosus	%	Gu, Fang	group D
17	Spiniferites pachydermus	S. pachydermus	%	Gu, Fang	group D
18	Spiniferites spp.	Spiniferites spp.	%	Gu, Fang	group D
19	Impagidinium pallidum	I. pallidum	%	Gu, Fang	group D
20	Impagidinium paradoxum	I. paradoxum	%	Gu, Fang	group D
21	Impagidinium patulum	I. patulum	%	Gu, Fang	group D
22	Impagidinium plicatum	I. plicatum	%	Gu, Fang	group D
23	Impagidinium sphaericum	I. sphaericum	%	Gu, Fang	group D
24	Impagidinium aculeatum	I. aculeatum	%	Gu, Fang	group D
25	Impagidinium spp.	Impagidinium spp.	%	Gu, Fang	group D
26	Nematosphaeropsis labyrinthus	N. labyrinthus	%	Gu, Fang	group D
27	Selenopemphix antarctica	S. antarctica	%	Gu, Fang	group D
28	Selenopemphix nephroides	S. nephroides	%	Gu, Fang	group D
29	Selenopemphix quanta	S. quanta	%	Gu, Fang	group D
30	Polykrikos schwartzii cyst	P. schwartzii cyst	%	Gu, Fang	group D
31	Trinovantedinium applanatum	T. applanatum	%	Gu, Fang	group D
32	Echinidinium granulatum	E. granulatum	%	Gu, Fang	group D
33	Brigantedinium spp.	Brigantedinium spp.	%	Gu, Fang	group D
34	Pseudoschizaea spp.	Pseudoschizaea spp.	%	Gu, Fang	group F
35	Pediastrum	Ped	%	Gu, Fang	group F
36	Algae, freshwater	Algae fw	%	Gu, Fang	group C
37	Dinoflagellates, heterotrophic	HDINO	%	Gu, Fang	group C
38	Dinoflagellates, phototrophic	PDINO	%	Gu, Fang	group C
39	Dinoflagellates, cosmopolitan	CDINO	%	Gu, Fang	group C
40	Dinoflagellates, eutrophic environmental	EDINO	%	Gu, Fang	group C
41	Dinoflagellates, open sea	ODINO	%	Gu, Fang	group C
42	Dinoflagellates, total	Dinofl total	#	Gu, Fang

License:

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

Size:

1600 data points

Data

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

1 Depth sed [m]	2 Age [ka BP]	3 SR [cm/ka]	4 Mass [g]	5 Lyc(ct) [#]	6 Lyc [#]	7 O. centrocarpum [%]	8 O. israelianum [%]	9 P. zoharyi [%]	10 B. tepikiense [%]	11 P. dalei [%]	12 L. machaerophorum [%]	13 T. vancampoae [%]	14 S. bentori [%]	15 S. mirabilis [%]	16 S. ramosus [%]	17 S. pachydermus [%]	18 Spiniferites spp. [%]	19 I. pallidum [%]	20 I. paradoxum [%]	21 I. patulum [%]	22 I. plicatum [%]	23 I. sphaericum [%]	24 I. aculeatum [%]	25 Impagidinium spp. [%]	26 N. labyrinthus [%]	27 S. antarctica [%]	28 S. nephroides [%]	29 S. quanta [%]	30 P. schwartzii cyst [%]	31 T. applanatum [%]	32 E. granulatum [%]	33 Brigantedinium spp. [%]	34 Pseudoschizaea spp. [%]	35 Ped [%]	36 Algae fw [%]	37 HDINO [%]	38 PDINO [%]	39 CDINO [%]	40 EDINO [%]	41 ODINO [%]	42 Dinofl total [#]
0.03	0.681	227.143	5.38	235	20848	80.0	3.3	0.3	0.0	5.3	1.0	0.3	0.3	1.7	1.7	0.3	2.7	0.3	1.7	0.0	0.0	0.7	0.0	0.0	0.0	0.0	0.0	0.0	0.3	0.0	0.0	0.0	0.0	0.0	0.0	0.3	99.7	81.7	15.7	2.7	300
0.13	2.953	227.143	6.49	343	20848	63.6	13.7	1.3	0.0	5.4	0.6	0.0	0.0	8.0	0.6	1.9	2.6	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.6	0.3	0.0	0.0	0.0	0.0	0.0	1.3	0.0	0.0	0.0	1.6	98.4	66.1	33.9	0.0	313
0.23	5.011	203.500	6.84	725	20848	67.7	3.3	0.0	0.0	2.3	2.0	0.0	0.0	9.3	4.0	0.7	8.7	0.0	0.0	0.0	0.0	0.7	0.0	0.0	1.3	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	100.0	73.0	26.3	0.7	300
0.33	7.046	203.500	5.60	323	20848	70.6	2.9	0.0	2.0	1.0	2.0	0.0	0.0	5.9	5.9	0.0	4.9	0.0	0.0	0.0	0.0	0.0	0.0	0.0	1.0	0.0	1.0	0.0	1.0	0.0	0.0	2.0	0.0	0.0	0.0	3.9	96.1	79.4	20.6	0.0	102
0.43	10.979	207.143	4.79	404	20848	71.8	11.7	0.0	1.9	1.9	3.9	0.0	0.0	0.0	1.9	1.9	0.0	1.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	3.9	0.0	0.0	0.0	3.9	96.1	77.7	21.4	1.0	103
0.53	11.186	207.143	5.40	275	20848	77.0	4.0	0.0	0.0	4.0	1.0	0.0	0.0	8.0	2.0	0.0	2.0	0.0	1.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	1.0	0.0	0.0	0.0	1.0	99.0	80.0	19.0	1.0	100
0.73	13.159	189.667	3.19	693	20848	39.0	4.0	0.0	3.0	3.0	8.0	8.0	0.0	16.0	5.0	0.0	8.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	1.0	0.0	2.0	1.0	0.0	0.0	0.0	2.0	2.0	1.0	3.0	5.0	95.0	47.0	53.0	0.0	100
0.84	15.245	189.667	2.13	1096	20848	63.0	1.0	0.0	0.0	0.0	8.0	2.0	0.0	10.0	4.0	0.0	2.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	10.0	0.0	0.0	0.0	10.0	90.0	77.0	23.0	0.0	100
0.95	17.331	189.667	3.37	898	20848	37.7	1.9	0.0	9.4	5.7	0.0	7.5	1.9	13.2	1.9	1.9	9.4	0.0	0.0	3.8	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	1.9	3.8	0.0	3.8	3.8	5.7	94.3	43.4	52.8	3.8	106
1.03	18.801	181.400	2.32	902	20848	29.7	12.9	2.0	1.0	5.0	13.9	4.0	2.0	6.9	2.0	0.0	12.9	0.0	0.0	0.0	0.0	0.0	2.0	0.0	0.0	0.0	4.0	0.0	0.0	0.0	0.0	2.0	0.0	5.0	5.0	5.9	94.1	33.7	64.4	2.0	101
1.13	20.580	177.857	3.57	518	20848	37.0	3.0	0.0	2.0	1.0	10.0	6.0	0.0	11.0	1.0	1.0	16.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	1.0	0.0	0.0	0.0	0.0	0.0	0.0	11.0	1.0	11.0	12.0	11.0	89.0	50.0	50.0	0.0	100
1.23	22.359	177.857	3.31	373	20848	51.0	11.8	0.0	0.0	3.9	5.9	0.0	0.0	7.8	2.0	0.0	9.8	0.0	0.0	0.0	0.0	0.0	2.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	5.9	0.0	0.0	0.0	5.9	94.1	58.8	39.2	2.0	102
1.33	24.137	177.857	3.28	310	20848	60.8	2.0	0.0	3.9	5.9	0.0	0.0	0.0	5.9	2.0	0.0	2.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	17.6	0.0	2.0	2.0	17.6	82.4	80.4	19.6	0.0	102
1.43	25.916	177.857	2.95	517	20848	66.7	3.0	1.5	1.0	3.5	3.0	3.0	0.0	4.5	2.0	0.0	9.0	0.0	0.0	0.0	1.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	2.0	0.0	0.0	0.0	2.0	98.0	70.6	28.4	1.0	201
1.63	29.473	160.468	3.24	225	20848	88.7	1.3	0.7	0.0	2.0	0.3	0.7	0.0	2.0	0.7	1.0	1.7	0.0	0.0	0.3	0.0	0.0	0.0	0.0	0.3	0.0	0.0	0.0	0.0	0.0	0.3	0.0	0.7	0.3	1.0	0.3	99.7	89.7	10.0	0.3	300
1.83	31.813	90.909	4.02	198	20848	90.3	2.7	0.0	0.0	0.0	1.0	0.0	0.0	1.7	0.3	0.0	2.3	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.7	0.0	0.0	0.0	0.0	0.0	0.0	1.0	0.0	0.0	0.0	1.0	99.0	92.3	7.7	0.0	300
2.03	33.631	90.909	3.85	495	20848	72.2	10.3	2.0	0.0	3.6	1.7	0.7	0.0	5.3	0.7	0.0	3.6	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.7	0.0	0.7	0.0	100.0	72.8	27.2	0.0	302
2.23	35.449	90.909	3.46	123	20848	88.4	0.6	0.0	0.0	0.0	0.0	0.3	0.0	1.0	1.9	0.0	0.6	0.0	0.0	0.0	0.0	0.0	0.0	0.0	7.1	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	100.0	97.4	2.6	0.0	311
2.43	37.267	90.909	3.52	103	20848	84.0	3.3	1.3	0.0	2.3	0.3	0.0	0.0	0.7	1.0	0.0	5.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.3	0.0	0.0	0.0	0.0	0.0	0.0	1.7	0.0	0.3	0.3	1.7	98.3	87.0	13.0	0.0	300
2.63	39.085	90.909	4.11	56	20848	93.0	1.5	0.0	0.0	0.0	0.0	0.0	0.0	3.0	0.5	0.0	1.5	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.5	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.5	99.5	93.5	6.5	0.0	200
2.83	40.904	90.909	3.73	160	20848	78.5	2.8	0.6	0.6	0.3	1.2	0.3	0.0	6.5	0.3	0.0	7.7	0.0	0.3	0.0	0.0	0.3	0.0	0.0	0.0	0.0	0.0	0.3	0.0	0.3	0.0	0.0	0.0	0.0	0.0	0.6	99.4	78.8	20.6	0.6	325
3.03	42.722	90.909	3.75	270	20848	86.5	2.0	1.0	0.0	0.3	0.3	0.7	0.0	5.6	1.0	0.0	1.3	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.3	1.0	0.0	0.3	0.3	1.3	98.7	88.5	11.5	0.0	304
3.23	44.540	90.909	3.17	149	20848	92.0	6.3	0.0	0.3	0.0	0.0	0.0	0.0	0.0	0.3	0.0	0.7	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.3	0.0	0.0	0.0	0.0	0.0	0.3	99.7	92.3	7.7	0.0	300
3.44	45.852	31.180	3.39	317	20848	62.5	2.5	1.0	0.0	1.0	0.5	6.0	0.0	12.5	4.0	0.5	6.5	0.0	0.0	0.0	0.0	0.0	0.0	0.5	0.5	0.0	0.0	0.0	0.0	0.0	0.0	2.0	0.5	1.0	1.5	2.0	98.0	69.0	30.5	0.5	200
3.54	46.164	31.180	3.11	414	20848	55.8	9.6	0.0	1.9	5.8	0.0	1.9	0.0	9.6	1.9	0.0	3.8	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	1.0	0.0	8.7	0.0	1.0	1.0	9.6	90.4	66.3	33.7	0.0	208
3.63	46.444	31.180	3.39	210	20848	76.5	2.0	0.0	0.0	0.0	0.5	3.5	0.0	11.5	0.5	0.0	3.5	0.0	0.0	0.0	0.5	0.0	0.0	0.5	0.0	0.0	0.0	0.0	0.0	0.5	0.5	0.0	0.0	1.5	1.5	1.0	99.0	77.0	22.0	1.0	200
3.73	46.756	31.180	3.94	291	20848	45.3	4.5	0.5	0.0	1.0	2.0	11.9	0.0	18.9	0.0	0.0	7.5	0.0	0.0	0.0	0.0	0.0	1.0	0.0	0.0	1.0	0.0	0.0	0.5	0.0	0.0	6.0	0.0	0.0	0.0	7.5	92.5	51.2	47.8	1.0	201
3.84	47.380	31.180	4.51	200	20848	56.0	3.0	0.0	2.5	0.0	1.5	8.0	0.0	15.5	2.0	0.0	10.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	1.5	0.0	0.0	0.0	1.5	98.5	59.5	40.5	0.0	200
3.93	47.380	31.180	4.14	296	20848	23.4	6.5	0.0	0.0	0.5	1.5	5.5	0.0	43.3	2.0	0.0	10.4	0.5	0.0	0.5	0.0	0.5	0.5	0.0	1.5	0.0	0.0	0.0	0.0	0.5	0.0	3.0	0.0	0.5	0.5	3.5	96.5	29.9	68.2	2.0	201
4.03	47.691	31.180	3.15	645	20848	21.5	4.0	0.0	1.5	0.0	4.0	11.0	0.0	31.5	0.0	1.0	14.5	0.5	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	1.0	0.5	0.0	0.5	0.5	8.0	0.0	1.5	1.5	10.5	89.5	29.5	70.0	0.5	200
4.13	48.003	31.180	3.36	421	20848	25.8	5.3	0.0	0.5	1.9	6.7	7.7	0.0	24.9	1.0	1.4	19.6	0.0	0.0	0.0	0.0	0.0	1.4	0.0	1.4	0.0	0.0	0.0	0.0	0.5	0.5	1.4	0.0	2.4	2.4	2.4	97.6	29.7	68.9	1.4	209
4.23	48.315	31.180	3.41	138	20848	91.7	6.3	0.0	0.3	0.0	0.0	0.0	0.0	0.0	0.3	0.0	0.7	0.0	0.0	0.0	0.3	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.3	0.0	0.0	0.0	0.0	0.0	0.3	99.7	92.0	7.6	0.3	301
4.33	48.627	31.180	3.50	296	20848	49.8	2.0	0.5	0.0	1.0	1.0	2.5	0.0	29.9	2.5	0.0	9.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.5	0.0	0.0	0.0	1.5	0.0	0.0	0.0	2.0	98.0	53.7	46.3	0.0	201
4.43	48.939	31.180	3.30	220	20848	54.6	2.4	0.0	2.0	0.0	1.5	4.4	0.0	21.0	1.0	0.5	11.2	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.5	0.0	0.0	0.0	0.0	0.0	0.0	1.0	0.0	0.0	0.0	1.0	99.0	57.1	42.9	0.0	205
4.53	49.250	31.180	2.64	248	20848	46.0	11.0	0.0	0.5	1.5	3.5	2.5	0.0	19.5	1.0	0.0	6.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.5	0.0	0.0	0.0	0.0	2.0	0.0	6.0	0.0	0.0	0.0	8.0	92.0	53.5	46.5	0.0	200
4.63	49.562	31.180	3.43	149	20848	85.0	1.6	0.0	0.0	0.0	0.7	1.0	0.0	3.3	1.0	0.7	4.2	0.0	0.0	0.0	0.0	0.0	0.0	0.0	2.0	0.0	0.0	0.0	0.0	0.0	0.0	0.7	0.0	0.0	0.0	0.7	99.3	88.6	11.4	0.0	307
4.73	49.874	31.180	3.85	50	20848	78.5	7.5	0.0	0.0	2.5	0.5	1.0	0.0	3.5	2.0	0.0	2.5	0.0	0.0	0.0	0.0	0.0	0.0	0.0	1.0	0.0	0.0	0.0	0.0	0.0	0.0	1.0	1.0	0.0	1.0	1.0	99.0	82.5	17.5	0.0	200
4.83	50.186	31.180	3.51	597	20848	21.1	2.6	0.0	1.6	0.0	1.3	1.0	0.3	49.0	3.0	1.3	9.9	0.0	0.0	0.0	0.0	0.3	0.0	0.0	0.7	0.0	0.3	0.0	0.0	0.0	0.0	7.6	0.3	0.0	0.3	7.9	92.1	32.2	67.4	0.3	304
4.93	50.498	31.180	3.28	774	20848	15.8	6.4	0.0	2.0	0.5	10.4	2.0	1.0	32.7	2.0	1.5	18.8	1.0	0.0	0.0	0.0	0.5	1.0	0.0	2.5	0.0	0.0	0.0	0.0	0.0	0.5	1.5	1.0	1.5	2.5	2.0	98.0	21.8	75.7	2.5	202
5.03	50.809	31.180	5.39	1070	20848	27.5	9.5	1.0	1.0	2.5	12.5	4.5	1.0	20.0	2.0	0.0	11.5	0.0	0.0	0.0	0.0	0.0	1.0	0.0	2.5	0.0	2.0	0.0	0.0	0.0	0.0	1.5	0.0	2.5	2.5	3.5	96.5	33.5	65.5	1.0	200