Citation:

012007

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Abstract:

Detrending natural and anthropogenic components of climate variability is arguably an issue of utmost importance to society. To accomplish this issue, one must rely on a comprehensive understanding of the natural variability of the climate system on a regional level. Here we explore how different proxies (e.g., stalagmite oxygen isotopic composition, pollen percentages, bulk sediment elemental ratios) record Holocene precipitation variability over southeastern South America. We found a general good agreement between the different records both on orbital and centennial time-scales. Dry mid Holocene, and wet late Holocene, Younger Dryas and a period between ~9.4 and 8.12 cal kyr BP seem to be pervasive features. Moreover, we show that proxy-specific sensitivity can greatly improve past precipitation reconstructions.

Project(s):

Center for Marine Environmental Sciences (MARUM)

Coverage:

Latitude: -32.505200 * Longitude: -50.242700

Date/Time Start: 1999-12-12T17:21:00 * Date/Time End: 1999-12-12T17:21:00

Minimum DEPTH, sediment/rock: 0.040 m * Maximum DEPTH, sediment/rock: 1.230 m

Event(s):

GeoB6211-2 * Latitude Start: -32.505200 * Longitude Start: -50.242700 * Latitude End: -32.505200 * Longitude End: -50.242700 * Date/Time: 1999-12-12T17:21:00 * Elevation Start: -657.0 m * Elevation End: -657.0 m * Recovery: 7.74 m * Location: Argentine Basin * Campaign: * Basis: * Method/Device: Gravity corer (Kiel type) (SL)

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	DEPTH, sediment/rock	Depth sed	m			Geocode
2	AGE	Age	ka BP			Geocode
3	Aluminium/Silicon ratio	Al/Si		Chiessi, Cristiano Mazur	Calculated, see reference(s)

License:

Creative Commons Attribution 3.0 Unported (CC-BY-3.0)

Size:

238 data points

Data

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

1 Depth sed [m]	2 Age [ka BP]	3 Al/Si
0.040	0.22	0.2984
0.045	0.26	0.2845
0.050	0.29	0.2713
0.055	0.33	0.2901
0.060	0.37	0.2752
0.065	0.40	0.3201
0.070	0.44	0.2758
0.075	0.48	0.3005
0.080	0.51	0.3058
0.085	0.55	0.2974
0.090	0.59	0.2935
0.095	0.63	0.2798
0.100	0.66	0.2708
0.105	0.70	0.2709
0.110	0.74	0.2847
0.115	0.77	0.2993
0.120	0.81	0.3093
0.125	0.85	0.2690
0.130	0.88	0.2843
0.135	0.92	0.2658
0.140	0.96	0.2759
0.145	0.99	0.2785
0.150	1.03	0.2571
0.155	1.07	0.3053
0.160	1.10	0.2626
0.165	1.14	0.2924
0.170	1.18	0.2953
0.175	1.21	0.2943
0.180	1.25	0.2932
0.185	1.30	0.2534
0.190	1.35	0.2816
0.195	1.40	0.2958
0.200	1.45	0.2823
0.205	1.50	0.2581
0.210	1.55	0.2718
0.215	1.60	0.2521
0.220	1.65	0.2978
0.225	1.70	0.2855
0.230	1.75	0.2705
0.235	1.80	0.2520
0.240	1.85	0.2536
0.245	1.90	0.2719
0.250	1.95	0.2744
0.255	2.00	0.2571
0.260	2.05	0.2577
0.265	2.11	0.2363
0.270	2.16	0.2892
0.275	2.21	0.2598
0.280	2.26	0.2390
0.285	2.31	0.2387
0.290	2.36	0.2370
0.295	2.41	0.2520
0.300	2.46	0.2460
0.305	2.51	0.2716
0.310	2.56	0.2535
0.315	2.61	0.2688
0.320	2.66	0.2629
0.325	2.71	0.2511
0.330	2.76	0.2484
0.335	2.81	0.2629
0.340	2.86	0.2627
0.345	2.91	0.2632
0.350	2.96	0.2730
0.355	3.01	0.2729
0.360	3.05	0.2628
0.365	3.10	0.2375
0.370	3.15	0.2533
0.375	3.20	0.2650
0.380	3.24	0.2382
0.385	3.29	0.2589
0.390	3.34	0.2625
0.395	3.39	0.2551
0.400	3.43	0.2406
0.405	3.48	0.2779
0.410	3.53	0.2411
0.415	3.57	0.2703
0.420	3.62	0.2571
0.425	3.67	0.2329
0.430	3.72	0.2766
0.435	3.76	0.2727
0.440	3.81	0.2754
0.445	3.86	0.2692
0.450	3.91	0.2546
0.455	3.95	0.2763
0.460	4.00	0.2748
0.465	4.05	0.2473
0.470	4.09	0.2709
0.475	4.14	0.2314
0.480	4.19	0.2667
0.485	4.24	0.2193
0.490	4.28	0.2656
0.495	4.33	0.2350
0.500	4.38	0.2372
0.505	4.42	0.2312
0.510	4.47	0.2275
0.515	4.52	0.2209
0.520	4.57	0.2355
0.525	4.61	0.2461
0.530	4.66	0.2287
0.535	4.71	0.2221
0.540	4.76	0.2405
0.545	4.80	0.2507
0.550	4.85	0.2114
0.555	4.93	0.2648
0.560	5.00	0.2289
0.565	5.08	0.2212
0.570	5.16	0.2452
0.575	5.23	0.2359
0.580	5.31	0.2251
0.585	5.39	0.2354
0.590	5.46	0.2447
0.595	5.54	0.2260
0.600	5.62	0.2414
0.605	5.69	0.2407
0.610	5.77	0.2322
0.615	5.85	0.2459
0.620	5.92	0.2405
0.625	6.00	0.2238
0.630	6.08	0.2323
0.635	6.15	0.2287
0.640	6.23	0.2187
0.645	6.31	0.2214
0.650	6.38	0.2135
0.655	6.46	0.2105
0.660	6.54	0.2293
0.665	6.61	0.2519
0.670	6.69	0.2263
0.675	6.77	0.2396
0.680	6.84	0.2251
0.685	6.92	0.2381
0.690	7.00	0.2455
0.695	7.07	0.2343
0.700	7.15	0.2408
0.705	7.23	0.2331
0.710	7.30	0.2333
0.715	7.38	0.2263
0.720	7.46	0.2272
0.725	7.53	0.2328
0.730	7.61	0.2494
0.735	7.67	0.2279
0.740	7.74	0.2498
0.745	7.80	0.2328
0.750	7.87	0.2263
0.755	7.93	0.2595
0.760	7.99	0.2164
0.765	8.06	0.2428
0.770	8.12	0.2162
0.775	8.18	0.2488
0.780	8.25	0.2421
0.785	8.31	0.2483
0.790	8.38	0.2369
0.795	8.44	0.2565
0.800	8.50	0.2535
0.805	8.57	0.2444
0.810	8.63	0.2496
0.815	8.69	0.2640
0.820	8.76	0.2531
0.825	8.82	0.2760
0.830	8.89	0.2591
0.835	8.95	0.2643
0.840	9.01	0.2522
0.845	9.08	0.2516
0.850	9.14	0.2624
0.855	9.21	0.2448
0.860	9.27	0.2541
0.865	9.33	0.2685
0.870	9.40	0.2646
0.875	9.46	0.2355
0.880	9.52	0.2292
0.885	9.59	0.2428
0.890	9.65	0.2375
0.895	9.72	0.2214
0.900	9.78	0.2563
0.905	9.84	0.2485
0.910	9.91	0.2476
0.915	9.97	0.2399
0.920	10.03	0.2405
0.925	10.10	0.2404
0.930	10.16	0.2546
0.935	10.23	0.2552
0.940	10.29	0.2540
0.945	10.35	0.2390
0.950	10.42	0.2524
0.955	10.48	0.2562
0.965	10.61	0.2488
0.970	10.67	0.2500
0.975	10.74	0.2480
0.980	10.80	0.2438
0.985	10.87	0.2506
0.990	10.93	0.2615
0.995	11.00	0.2441
1.000	11.06	0.2454
1.005	11.13	0.2374
1.010	11.19	0.2582
1.015	11.26	0.2386
1.020	11.32	0.2506
1.025	11.39	0.2623
1.030	11.45	0.2766
1.035	11.52	0.2457
1.040	11.58	0.2547
1.045	11.65	0.2583
1.050	11.71	0.2569
1.055	11.78	0.2307
1.060	11.84	0.2623
1.065	11.91	0.2677
1.070	11.97	0.2656
1.075	12.04	0.2590
1.080	12.10	0.2328
1.085	12.17	0.2452
1.090	12.23	0.2558
1.095	12.30	0.2680
1.100	12.36	0.2576
1.105	12.43	0.2479
1.110	12.49	0.2604
1.115	12.56	0.2555
1.120	12.62	0.2473
1.125	12.69	0.2481
1.130	12.75	0.2332
1.135	12.82	0.2324
1.140	12.88	0.2547
1.145	12.95	0.2461
1.150	13.01	0.2225
1.155	13.08	0.2320
1.160	13.14	0.2255
1.165	13.21	0.2424
1.170	13.27	0.2537
1.175	13.34	0.2603
1.180	13.40	0.2686
1.185	13.47	0.2594
1.190	13.53	0.2445
1.195	13.60	0.2400
1.200	13.66	0.2503
1.205	13.73	0.2646
1.210	13.79	0.2472
1.215	13.86	0.2543
1.220	13.92	0.2625
1.225	13.99	0.2500
1.230	14.05	0.2532