Citation:

PANGAEA.988450

Name: Carbon isotope gradients between Sites ODP 130-807 and 181-1123
Published: 2026-01-12
License: https://creativecommons.org/licenses/by/4.0/
Keywords: Neodymium isotopes; Pacific deep western current; the Mid-Pleistocene Transition

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Published: 2026-01-12 • DOI registered: 2026-02-10

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Abstract:

The stable carbon isotope (δ13C) gradient between ODP Sites 130-807 and 181-1123 was calculated after interpolating both records at 5 ka resolution using Acycle. The age models follow Elderfield et al. (2012, doi:10.1126/science.1221294) and Feng et al. (2022, doi:10.1016/j.gloplacha.2022.103945).

Keyword(s):

Neodymium isotopes; Pacific deep western current; the Mid-Pleistocene Transition

Supplement to:

Li, Ke; Tian, Jun; Zhao, Ning; Du, Jianghui; Liu, Zhonghui; Du, Jinlong; Huang, Enqing (2026): Stable Pacific deep circulation punctuated by episodic intensification during the Mid-Pleistocene Transition. Global and Planetary Change, 257, 105229, https://doi.org/10.1016/j.gloplacha.2025.105229

References:

Elderfield, Henry; Ferretti, Patrizia; Greaves, Mervyn; Crowhurst, Simon J; McCave, I Nicholas; Hodell, David A; Piotrowski, Alexander M (2012): Evolution of ocean temperature and ice volume through the Mid-Pleistocene Climate Transition. Science, 337(6095), 704-709, https://doi.org/10.1126/science.1221294

Feng, Hua; Tian, Jun; Lyle, Mitchell W; Westerhold, Thomas; Wilkens, Roy H (2022): High resolution benthic foraminiferal δ18O and δ13C records at ODP site 807 over the past 5 Ma, Ontong Java Plateau: Evolution of North Pacific ventilation, Pliocene to Holocene. Global and Planetary Change, 217, 103945, https://doi.org/10.1016/j.gloplacha.2022.103945

Coverage:

Median Latitude: -19.089667 * Median Longitude: -7.437000 * South-bound Latitude: -41.786000 * West-bound Longitude: -171.499000 * North-bound Latitude: 3.606667 * East-bound Longitude: 156.625000

Date/Time Start: 1990-02-26T00:00:00 * Date/Time End: 1998-09-24T00:00:00

Minimum Elevation: -3290.0 m * Maximum Elevation: -2805.2 m

Event(s):

130-807 * Latitude: 3.606667 * Longitude: 156.625000 * Date/Time Start: 1990-02-26T00:00:00 * Date/Time End: 1990-03-02T00:00:00 * Elevation: -2805.2 m * Penetration: 2629.9 m * Recovery: 1249.8 m * Location: North Pacific Ocean * Campaign: * Basis: Joides Resolution * Method/Device: Composite Core (COMPCORE) * Comment: 209 cores; 1849.9 m cored; 0 m drilled; 67.6% recovery

181-1123 * Latitude: -41.786000 * Longitude: -171.499000 * Date/Time Start: 1998-09-12T00:00:00 * Date/Time End: 1998-09-24T00:00:00 * Elevation: -3290.0 m * Penetration: 1279.9 m * Recovery: 899.5 m * Location: South Pacific Ocean * Campaign: * Basis: Joides Resolution * Method/Device: Composite Core (COMPCORE) * Comment: 102 cores; 957 m cored; 322.9 m drilled; 94% recovery

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	AGE	Age	ka BP	Li, Ke	see comment	Geocode – 5ka interpolation according to Elderfield et al. (2012, doi:10.1126/science.1221294) and Feng et al. (2022, doi:10.1016/j.gloplacha.2022.103945).
2	δ13C	δ13C	‰	Li, Ke	Calculated	Site 130-807
3	δ13C	δ13C	‰	Li, Ke	Calculated	Site 181-1123
4	Δδ13C, gradient	Δδ13C grad	‰	Li, Ke	Calculated	Site 130-807 - Site 181-1123

License:

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

Status:

Curation Level: Enhanced curation (CurationLevelC)

Size:

582 data points

Data

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

1 Age [ka BP] (5ka interpolation according t...)	2 δ13C [‰] (Site 130-807, Calculated)	3 δ13C [‰] (Site 181-1123, Calculated)	4 Δδ13C grad [‰] (Site 130-807 - Site 181-1123,...)
601	-0.128	0.373	-0.501
604	0.038	0.348	-0.310
607	0.232	0.273	-0.041
610	0.174	0.368	-0.194
613	0.110	0.430	-0.320
616	0.161	0.305	-0.144
620	0.126	0.128	-0.002
623	-0.247	-0.056	-0.191
626	-0.193	-0.169	-0.024
629	0.272	-0.355	0.627
632	-0.205	-0.440	0.235
635	-0.214	-0.352	0.138
638	-0.210	-0.313	0.103
642	-0.352	-0.362	0.010
645	-0.226	-0.081	-0.145
648	-0.375	-0.200	-0.175
651	-0.331	-0.265	-0.066
654	-0.487	-0.325	-0.162
657	-0.395	-0.380	-0.015
660	-0.296	-0.585	0.289
663	0.311	-0.395	0.706
667	-0.477	-0.484	0.007
670	-0.391	0.025	-0.416
673	-0.282	-0.185	-0.097
676	-0.029	-0.245	0.216
679	-0.138	0.116	-0.254
682	-0.069	0.011	-0.080
685	0.144	-0.138	0.282
688	0.392	-0.164	0.556
692	-0.083	0.372	-0.455
695	0.288	0.320	-0.032
698	-0.313	0.470	-0.783
701	-0.062	0.630	-0.692
704	0.037	0.443	-0.406
707	-0.307	0.280	-0.587
710	-0.180	-0.005	-0.175
713	-0.446	-0.203	-0.243
717	-0.456	-0.577	0.121
720	-0.124	-0.584	0.460
723	0.143	-0.494	0.637
726	-0.030	-0.390	0.360
729	-0.053	0.005	-0.058
732	-0.306	0.115	-0.421
735	-0.538	-0.045	-0.493
738	-0.230	-0.080	-0.150
742	-0.497	-0.190	-0.307
745	-0.335	-0.406	0.071
748	-0.594	-0.528	-0.066
751	-0.433	-0.480	0.047
754	-0.481	-0.513	0.032
757	-0.356	-0.524	0.168
760	-0.326	-0.412	0.086
763	-0.430	-0.270	-0.160
767	-0.100	-0.030	-0.070
770	-0.047	-0.084	0.037
773	-0.378	0.186	-0.564
776	0.101	0.230	-0.129
779	-0.150	0.216	-0.366
782	-0.055	0.198	-0.253
786	-0.347	0.140	-0.487
789	-0.256	0.088	-0.344
792	-0.852	-0.260	-0.592
798	-0.354	-0.470	0.116
801	-0.610	-0.367	-0.243
807	-0.445	-0.410	-0.035
810	-0.162	-0.290	0.128
812	-0.506	-0.297	-0.209
815	0.088	-0.278	0.366
818	-0.195	-0.240	0.045
821	0.100	-0.167	0.267
824	-0.140	-0.168	0.028
829	-0.234	-0.152	-0.082
832	-0.019	-0.020	0.001
835	-0.305	-0.104	-0.201
837	-0.262	-0.180	-0.082
840	-0.070	-0.230	0.160
843	-0.154	-0.101	-0.053
846	-0.044	-0.068	0.024
851	-0.094	-0.014	-0.080
854	-0.106	-0.020	-0.086
857	-0.567	-0.069	-0.498
860	-0.391	-0.147	-0.244
863	-0.551	0.056	-0.607
866	-0.540	-0.201	-0.339
868	-0.535	-0.105	-0.430
871	-0.500	-0.510	0.010
874	-0.659	-0.703	0.044
877	-0.385	-0.725	0.340
880	-0.418	-0.590	0.172
883	-0.429	-0.586	0.157
886	-0.543	-0.403	-0.140
889	-0.452	-0.420	-0.032
891	-0.362	-0.462	0.100
894	-0.431	-0.505	0.074
897	-0.571	-0.533	-0.039
900	-0.556	-0.620	0.064
903	-0.637	-0.295	-0.342
909	-0.627	-0.266	-0.361
912	-0.659	-0.286	-0.373
917	-0.388	-0.462	0.074
920	-0.475	-0.550	0.075
923	-0.117	-0.430	0.313
926	-0.489	-0.490	0.001
937	0.104	-0.039	0.143
940	0.012	0.188	-0.176
943	-0.079	-0.062	-0.017
946	-0.172	0.041	-0.213
949	-0.207	0.219	-0.426
952	-0.344	0.251	-0.595
955	0.149	0.364	-0.215
960	-0.225	-0.123	-0.102
963	-0.121	-0.402	0.281
966	-0.272	-0.508	0.236
969	-0.377	-0.440	0.063
972	-0.096	-0.120	0.024
975	-0.244	-0.250	0.006
978	0.002	0.139	-0.137
983	0.023	-0.010	0.033
986	-0.120	-0.830	0.710
989	-0.012	-0.323	0.311
993	0.076	0.240	-0.164
996	-0.023	0.159	-0.182
1006	0.024	-0.155	0.179
1015	-0.019	0.290	-0.309
1019	-0.035	0.165	-0.200
1022	0.179	0.170	0.009
1025	-0.021	0.084	-0.105
1028	-0.116	-0.083	-0.034
1035	-0.180	-0.061	-0.119
1038	-0.155	-0.150	-0.005
1041	-0.193	-0.128	-0.065
1067	0.194	0.196	-0.002
1071	0.143	0.350	-0.207
1074	0.145	0.231	-0.086
1078	-0.046	0.209	-0.255
1087	-0.253	0.360	-0.613
1094	0.199	-0.144	0.343
1098	0.260	-0.550	0.810
1101	0.197	-0.240	0.437
1105	-0.418	0.360	-0.778
1112	0.066	0.253	-0.187
1116	-0.358	-0.047	-0.311
1120	-0.359	-0.020	-0.339
1123	-0.326	-0.135	-0.191
1127	-0.124	-0.417	0.293
1130	-0.035	-0.439	0.404
1134	-0.167	-0.203	0.036
1140	-0.107	-0.103	-0.004
1144	0.152	-0.045	0.197
1147	0.389	0.226	0.163
1150	0.322	0.340	-0.018
1154	0.199	0.492	-0.293
1157	0.157	0.226	-0.069
1160	0.311	0.048	0.263
1164	0.217	0.010	0.207
1167	0.202	0.568	-0.366
1170	0.236	0.548	-0.312
1174	0.275	0.103	0.172
1177	0.256	0.276	-0.020
1180	-0.115	0.354	-0.469
1184	-0.363	0.375	-0.738
1187	-0.700	0.099	-0.799
1190	0.191	-0.020	0.211
1194	-0.261	-0.349	0.088
1197	-0.243	-0.347	0.104
1200	-0.266	-0.346	0.080
1204	-0.332	-0.226	-0.106
1207	-0.176	-0.009	-0.167
1210	-0.316	0.016	-0.332
1214	-0.106	-0.013	-0.093
1220	-0.075	0.292	-0.367
1224	0.135	0.592	-0.457
1227	0.232	0.593	-0.361
1234	0.194	0.508	-0.314
1237	0.233	0.296	-0.063
1241	-0.131	-0.117	-0.014
1244	-0.304	-0.049	-0.255
1247	-0.591	-0.351	-0.240
1251	-0.251	-0.280	0.029
1254	-0.348	-0.291	-0.057
1260	-0.416	-0.077	-0.339
1262	0.262	-0.138	0.400
1265	-0.011	-0.080	0.069
1271	0.004	0.064	-0.060
1274	0.039	0.144	-0.105
1276	0.154	0.336	-0.182
1279	-0.163	0.277	-0.440
1282	0.002	0.330	-0.328
1285	-0.154	0.059	-0.213
1288	-0.118	0.019	-0.137
1293	-0.239	-0.310	0.071
1296	-0.293	-0.250	-0.043
1299	-0.137	-0.221	0.084
1302	-0.258	-0.205	-0.053