Citation:

PANGAEA.993811 (DOI registration in progress)

Name: Age model of lake sediment core TAR2-18-1 from Tarn 2, East Falkland
Published: 2026-04-27
License: https://creativecommons.org/licenses/by/4.0/
Keywords: alkanes; Biomarker; Lake sediment core; Long-chain n-alkanes; Pollen; South Altantic; south westerly wind; Vegetation change; Vegetation composition

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Published: 2026-04-27

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Abstract:

Age model for sediment core tar2-18-1. Age model based on 7 radiocarbon dates calibrated with INTCAL20 and integrated with R.Bacon.

Keyword(s):

alkanes; Biomarker; Lake sediment core; Long-chain n-alkanes; Pollen; South Altantic; south westerly wind; Vegetation change; Vegetation composition

Related to:

Spoth-Ascencao, Meghan; Hall, Brenda L; Gill, Jacquelyn; et al. (accepted): A 13,000-year record of the Southern Hemisphere Westerlies inferred from pollen and plant wax isotopes from the South Atlantic. Paleoceanography and Paleoclimatology

Spoth-Ascencao, Meghan; Hall, Brenda L; Lowell, Thomas V; Diefendorf, Aaron F; Corcoran, Megan C; Brickle, Paul (2023): Tracking the southern hemisphere westerlies during and since the last glacial maximum with multiproxy lake records from the Falkland Islands (52 °S). Quaternary Science Reviews, 311, 108135, https://doi.org/10.1016/j.quascirev.2023.108135

Coverage:

Latitude: -51.696367 * Longitude: -58.826867

Minimum DEPTH, sediment/rock: 0.00 m * Maximum DEPTH, sediment/rock: 1.55 m

Event(s):

TAR2-18-1 * Latitude: -51.696367 * Longitude: -58.826867 * Elevation: 600.0 m * Location: Falkland Islands * Method/Device: Piston corer (PC) * Comment: Spring 2018, Tarn 2

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	DEPTH, sediment/rock	Depth sed	m	Spoth-Ascencao, Meghan		Geocode
2	Age, minimum/young	Age min	ka	Spoth-Ascencao, Meghan	Age, 14C calibrated, Bacon and IntCal20
3	Age, maximum/old	Age max	ka	Spoth-Ascencao, Meghan	Age, 14C calibrated, Bacon and IntCal20
4	Age, median	Age median	ka	Spoth-Ascencao, Meghan	Age, 14C calibrated, Bacon and IntCal20
5	Age, mean	Age mean	ka	Spoth-Ascencao, Meghan	Age, 14C calibrated, Bacon and IntCal20

License:

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

Status:

Curation Level: Enhanced curation (CurationLevelC)

Size:

624 data points

Data

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

1 Depth sed [m]	2 Age min [ka]	3 Age max [ka]	4 Age median [ka]	5 Age mean [ka]
0.00	0.941	2.924	2.213	2.151
0.01	1.044	2.939	2.269	2.205
0.02	1.160	2.955	2.326	2.260
0.03	1.215	2.982	2.387	2.315
0.04	1.272	3.021	2.446	2.370
0.05	1.336	3.071	2.500	2.424
0.06	1.484	3.088	2.555	2.481
0.07	1.598	3.109	2.613	2.537
0.08	1.678	3.130	2.675	2.593
0.09	1.743	3.162	2.737	2.649
0.10	1.798	3.202	2.791	2.705
0.11	1.943	3.216	2.837	2.761
0.12	2.076	3.230	2.889	2.817
0.13	2.150	3.245	2.943	2.872
0.14	2.211	3.272	2.992	2.928
0.15	2.285	3.304	3.049	2.984
0.16	2.480	3.319	3.095	3.042
0.17	2.662	3.331	3.139	3.101
0.18	2.837	3.349	3.183	3.159
0.19	3.006	3.374	3.226	3.217
0.20	3.095	3.424	3.279	3.276
0.21	3.159	3.486	3.334	3.330
0.22	3.194	3.602	3.379	3.384
0.23	3.214	3.746	3.423	3.439
0.24	3.234	3.894	3.464	3.493
0.25	3.253	4.038	3.505	3.547
0.26	3.303	4.072	3.559	3.598
0.27	3.337	4.108	3.615	3.648
0.28	3.360	4.165	3.671	3.699
0.29	3.381	4.235	3.722	3.749
0.30	3.398	4.313	3.773	3.800
0.31	3.444	4.352	3.830	3.850
0.32	3.480	4.406	3.887	3.900
0.33	3.504	4.473	3.936	3.950
0.34	3.519	4.559	3.990	4.000
0.35	3.540	4.652	4.036	4.050
0.36	3.582	4.685	4.078	4.096
0.37	3.624	4.733	4.126	4.141
0.38	3.655	4.777	4.176	4.187
0.39	3.682	4.838	4.226	4.233
0.40	3.709	4.912	4.270	4.278
0.41	3.781	4.933	4.319	4.328
0.42	3.840	4.979	4.371	4.377
0.43	3.861	5.030	4.420	4.427
0.44	3.890	5.079	4.472	4.476
0.45	3.906	5.137	4.526	4.525
0.46	3.986	5.161	4.575	4.574
0.47	4.057	5.193	4.625	4.623
0.48	4.109	5.233	4.677	4.672
0.49	4.133	5.286	4.731	4.721
0.50	4.166	5.336	4.778	4.770
0.51	4.258	5.352	4.830	4.821
0.52	4.328	5.367	4.887	4.873
0.53	4.373	5.401	4.939	4.924
0.54	4.419	5.430	4.995	4.976
0.55	4.450	5.482	5.048	5.028
0.56	4.537	5.502	5.095	5.076
0.57	4.608	5.521	5.145	5.124
0.58	4.681	5.543	5.193	5.173
0.59	4.724	5.573	5.249	5.221
0.60	4.761	5.616	5.297	5.270
0.61	4.864	5.631	5.339	5.316
0.62	4.962	5.649	5.385	5.362
0.63	5.035	5.667	5.430	5.409
0.64	5.098	5.696	5.479	5.455
0.65	5.143	5.733	5.527	5.502
0.66	5.301	5.767	5.567	5.555
0.67	5.443	5.804	5.605	5.608
0.68	5.527	5.846	5.651	5.662
0.69	5.582	5.906	5.706	5.715
0.70	5.604	6.032	5.752	5.769
0.71	5.644	6.072	5.797	5.812
0.72	5.672	6.113	5.843	5.856
0.73	5.691	6.169	5.885	5.900
0.74	5.702	6.271	5.926	5.944
0.75	5.714	6.376	5.962	5.988
0.76	5.762	6.403	6.015	6.035
0.77	5.800	6.434	6.065	6.081
0.78	5.828	6.471	6.121	6.128
0.79	5.850	6.530	6.171	6.174
0.80	5.870	6.619	6.220	6.221
0.81	5.929	6.636	6.264	6.267
0.82	5.975	6.656	6.316	6.313
0.83	6.015	6.678	6.364	6.359
0.84	6.042	6.722	6.413	6.405
0.85	6.072	6.781	6.460	6.451
0.86	6.141	6.793	6.500	6.491
0.87	6.201	6.805	6.544	6.531
0.88	6.255	6.826	6.588	6.572
0.89	6.296	6.847	6.631	6.612
0.90	6.324	6.883	6.672	6.653
0.91	6.462	6.904	6.728	6.718
0.92	6.579	6.932	6.786	6.782
0.93	6.646	6.987	6.857	6.847
0.94	6.701	7.099	6.915	6.912
0.95	6.739	7.248	6.969	6.977
0.96	6.798	7.267	7.017	7.024
0.97	6.848	7.295	7.070	7.071
0.98	6.884	7.328	7.125	7.118
0.99	6.908	7.386	7.174	7.165
1.00	6.933	7.460	7.223	7.212
1.01	7.076	7.487	7.291	7.287
1.02	7.178	7.526	7.364	7.363
1.03	7.250	7.616	7.441	7.438
1.04	7.289	7.770	7.506	7.513
1.05	7.314	7.954	7.570	7.589
1.06	7.451	8.154	7.746	7.761
1.07	7.518	8.462	7.911	7.933
1.08	7.553	8.841	8.065	8.105
1.09	7.586	9.227	8.230	8.277
1.10	7.615	9.643	8.397	8.449
1.11	7.812	9.710	8.601	8.639
1.12	7.914	9.791	8.822	8.830
1.13	7.984	9.873	9.068	9.021
1.14	8.043	10.001	9.287	9.212
1.15	8.079	10.247	9.508	9.402
1.16	8.523	10.273	9.664	9.580
1.17	8.961	10.300	9.819	9.759
1.18	9.403	10.331	9.974	9.937
1.19	9.810	10.381	10.128	10.115
1.20	10.074	10.486	10.285	10.294
1.21	10.241	10.605	10.401	10.405
1.22	10.286	10.822	10.506	10.517
1.23	10.308	11.068	10.608	10.629
1.24	10.324	11.321	10.710	10.741
1.25	10.341	11.584	10.812	10.852
1.26	10.488	11.629	10.923	10.960
1.27	10.570	11.691	11.048	11.068
1.28	10.619	11.756	11.176	11.176
1.29	10.668	11.856	11.292	11.284
1.30	10.707	11.997	11.412	11.392
1.31	10.925	12.033	11.510	11.500
1.32	11.090	12.090	11.620	11.608
1.33	11.216	12.166	11.722	11.716
1.34	11.315	12.236	11.832	11.824
1.35	11.396	12.365	11.941	11.932
1.36	11.447	12.418	12.003	11.990
1.37	11.491	12.472	12.057	12.048
1.38	11.531	12.574	12.108	12.107
1.39	11.570	12.701	12.160	12.165
1.40	11.619	12.863	12.210	12.223
1.41	11.662	12.920	12.268	12.277
1.42	11.722	12.977	12.314	12.331
1.43	11.770	13.072	12.362	12.385
1.44	11.811	13.166	12.411	12.438
1.45	11.853	13.296	12.454	12.492
1.46	11.902	13.335	12.509	12.541
1.47	11.942	13.400	12.563	12.590
1.48	11.972	13.463	12.623	12.639
1.49	12.013	13.545	12.669	12.688
1.50	12.045	13.632	12.718	12.737
1.51	12.087	13.685	12.767	12.786
1.52	12.117	13.742	12.814	12.836
1.53	12.146	13.830	12.859	12.885
1.54	12.178	13.914	12.907	12.935
1.55	12.207	13.990	12.953	12.984