Citation:

PANGAEA.993363

Name: δ13C determination from benthic foraminifera of sediment core DGL-1905 from the Western South Atlantic
Published: 2026-04-13
License: https://creativecommons.org/licenses/by/4.0/
Keywords: Benthic foraminifera; Stable isotope; XRF data

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Published: 2026-04-13 • DOI registered: 2026-05-12

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Abstract:

This dataset provides δ13C from benthic foraminifera from the last 956 ka. The site (DGL-1905) is located in the Sergipe-Alagoas Basin, in Northeastern Brazil, near the São Francisco River mouth. This data allows the interpretation of deep-current variations during the last million years. The benthic foraminifera samples were prepared in the Laboratory of Oceanography and Paleoceanography (Fluminense Federal University). The stable isotope data were measured from benthic foraminifera tests with a mass spectrometer (ThermoFischer MAT 253) at the Paleoceanography and Paleoclimatology Laboratory (University of São Paulo).

Keyword(s):

Benthic foraminifera; Stable isotope; XRF data

Related to:

Gomes, Bruno; Venancio, Igor Martins; Ballalai, João M; Figueiredo, Thiago S; Almeida, Anderson G; Albuquerque, Ana Luiza Spadano (2026): Eastern Brazil hydroclimate weakening linked to stronger AMOC during MIS 16–13. Palaeogeography, Palaeoclimatology, Palaeoecology, 688, 113622, https://doi.org/10.1016/j.palaeo.2026.113622

Coverage:

Latitude: -11.339444 * Longitude: -36.851944

Minimum DEPTH, sediment/rock: 0.04 m * Maximum DEPTH, sediment/rock: 59.33 m

Event(s):

DGL-1905 * Latitude: -11.339444 * Longitude: -36.851944 * Elevation: -2513.0 m * Location: Atlantic, off Brazil * Method/Device: Drilling/coring * Comment: Collected by the Petrobras oil company.

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	DEPTH, sediment/rock	Depth sed	m	Gomes, Bruno		Geocode
2	AGE	Age	ka BP	Gomes, Bruno		Geocode
3	Foraminifera, benthic δ13C	Foram benth δ13C	‰ PDB	Gomes, Bruno	Isotope ratio mass spectrometer (IRMS), Thermo Fisher, MAT253	vs. VPDB

License:

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

Status:

Curation Level: Enhanced curation (CurationLevelC)

Size:

158 data points

Data

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

1 Depth sed [m]	2 Age [ka BP]	3 Foram benth δ13C [‰ PDB]
0.04	1.595509	1.22
0.51	12.979220	0.53
0.56	13.787758	0.25
0.66	15.105629	0.57
1.51	23.508374	0.46
2.09	27.598829	0.61
3.26	34.970987	0.41
4.19	40.774613	0.71
4.39	42.208422	1.02
4.86	46.001762	0.83
5.30	50.041560	0.49
5.52	52.216094	0.76
6.01	57.377950	0.02
6.73	65.366928	0.11
6.87	67.273995	0.27
7.57	78.799543	0.19
8.21	87.566234	1.05
9.02	98.055754	-0.18
9.64	106.114350	0.74
10.32	115.548539	-0.37
10.73	121.319915	0.88
10.80	122.156090	1.01
10.96	123.878951	0.24
11.14	125.973213	0.92
11.54	133.270738	-0.27
11.94	135.992828	0.36
12.35	138.433084	-0.01
13.87	150.064265	0.26
14.07	151.947664	0.07
14.65	158.249486	-0.08
15.07	163.362488	-1.08
15.19	164.869219	-0.30
16.16	177.208253	0.56
16.50	180.938526	0.24
16.74	183.023431	0.11
18.93	195.418067	1.02
19.33	198.591481	0.79
19.65	202.966303	0.30
19.75	204.640673	0.72
20.30	218.645962	1.23
20.43	222.362772	1.07
20.79	229.874258	0.49
20.99	233.704012	1.39
21.30	240.579712	0.85
21.50	248.560472	0.31
21.80	260.056893	-0.31
22.00	266.326789	0.19
22.42	279.184658	0.43
22.62	285.027216	-0.23
23.02	292.228188	0.18
23.42	297.548724	0.62
24.25	306.093735	0.45
24.45	308.434383	0.31
24.85	312.945621	0.48
25.41	318.625105	0.48
25.61	320.620001	0.24
25.79	322.305602	0.30
26.20	326.258002	0.74
26.50	328.879453	0.75
26.82	331.982758	0.91
27.02	334.916490	-0.41
27.82	343.302983	0.44
28.82	352.726706	-0.07
29.57	360.275285	0.46
29.97	364.783329	0.40
30.89	374.511340	0.74
32.05	384.017369	1.36
32.30	386.440712	0.92
32.70	390.194124	1.40
33.46	398.108591	1.04
33.66	401.562462	1.21
33.86	404.940720	1.22
34.23	412.286588	0.98
34.63	431.515698	1.00
34.83	451.696666	-0.29
35.08	476.280887	1.11
35.28	484.945281	1.20
35.48	489.091796	1.24
35.78	493.852547	1.33
36.00	497.334365	1.51
36.60	505.932296	0.92
36.91	511.521743	0.68
37.31	518.677679	1.28
38.04	530.452592	0.96
38.26	534.607758	0.35
38.60	540.658635	0.10
38.96	547.273659	0.29
39.38	555.458326	0.58
39.68	561.551713	0.28
39.88	565.094144	0.49
40.08	567.952101	0.50
40.55	573.639872	0.80
40.75	576.079222	0.89
40.95	578.914254	0.11
41.15	583.404791	0.13
41.50	590.828611	0.86
41.70	595.505474	-0.06
41.90	600.299170	0.20
42.10	605.575570	0.64
42.30	611.178572	0.56
42.42	614.439641	1.12
42.82	619.534936	0.15
43.02	622.441470	0.48
43.53	634.607391	0.32
43.93	643.250431	0.10
44.25	649.714099	0.07
44.45	653.216374	0.45
44.65	656.665557	0.07
45.17	665.694794	-0.34
45.37	669.720128	-0.35
45.57	673.334134	-0.77
45.77	676.594341	0.05
46.08	682.137400	0.69
46.48	688.700617	0.87
46.68	692.160487	0.74
46.88	695.339178	0.65
47.40	702.808762	-0.93
47.92	711.090326	-0.31
48.12	715.094828	-0.01
48.32	718.015700	0.54
48.52	720.468785	0.37
49.21	728.582928	0.06
49.41	731.572782	0.49
49.61	735.106368	0.22
49.71	737.186139	0.32
49.91	742.642335	0.15
50.31	754.774449	0.21
50.65	764.838462	0.13
51.05	776.705238	0.57
51.25	782.408858	0.66
51.58	792.336284	-0.18
51.78	795.468941	0.00
52.18	799.231068	0.23
52.70	803.341832	-0.32
53.10	806.572691	0.12
53.62	811.004025	0.26
53.82	813.019751	-0.10
54.02	815.463264	0.78
54.34	820.229649	0.13
54.54	824.077056	0.28
54.74	828.037895	0.36
54.94	832.183701	0.47
55.14	838.398179	-0.30
55.56	863.606004	-0.38
55.76	870.849056	0.35
55.96	877.794474	0.37
56.12	895.688362	0.64
56.32	913.816847	-0.04
56.69	921.160158	-0.48
57.29	928.785202	-0.03
57.49	931.393889	0.08
57.69	933.994401	0.61
58.01	937.773075	0.11
58.21	940.263780	0.60
58.41	943.044037	0.54
58.81	948.850211	-0.03
59.13	953.742996	-0.27
59.33	956.847898	-0.16