Citation:

PANGAEA.949244

Name: Biogenic opal record of gravity core MSM45_19-2
Published: 2022-09-29
License: https://creativecommons.org/licenses/by/4.0/
Keywords: 8.2 ka event; biogenic opal; Holocene; Labrador Shelf; primary production

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Abstract:

Biogenic opal (BSi) concentrations were analysed as indicator for past primary productivity on gravity core MSM45_19-2 from the northern Labrador Shelf. Gravity core MSM45_19-2 was obtained during R/V Maria S. Merian expedition MSM45 (58°45.68'N, 61°56.25'W, water depth: 202 m) in 2015 (Schneider et al., 2016). Biogenic opal was determined at Dalhousie University following the method of (Mortlock and Froelich , 1989). Briefly, amorphous silica was extracted from ca. 20 mg subsamples using a 2 M Na2 CO3 solution at 85°C for 5 h, followed by the measurement of dissolved silica concentrations by molybdenum blue spectrophotometry.

Keyword(s):

8.2 ka event; biogenic opal; Holocene; Labrador Shelf; primary production

Supplement to:

Kolling, Henriette Marie; Schneider, Ralph R; Gross, Felix; Hamann, Christian; Kienast, Markus; Kienast, Stephanie S; Doering, Kristin; Fahl, Kirsten; Stein, Ruediger (2023): Biomarker Records of Environmental Shifts on the Labrador Shelf During the Holocene. Paleoceanography and Paleoclimatology, 38(9), e2022PA004578, https://doi.org/10.1029/2022PA004578

Related to:

Schneider, Ralph R; Blanz, Thomas; Evers, Florian; Gasparotto, Marie-Camille; Gross, Felix; Hüls, Matthias; Keul, Nina; Kienast, Markus; Lehner, Katharina; Lüders, Svenja; Mellon, Stefanie; Merl, Maximilian; Reissig, Stefan; Repschläger, Janne; Salvatteci, Renato; Schulten, Irena; Schwarz, Jan-Philipp; Schönke, Mischa; Steen, Eric; Tietjens, Annika; Van Nieuwenhove, Nicolas (2016): Paleoclimate Understanding Labrador Sea (PULSE), Cruise No. MSM45, August 1, 2015 - August 21, 2015, Nuuk (Greenland) - Halifax (Canada). MARIA S. MERIAN-Berichte, Gutachterpanel Forschungsschiffe, MSM45, 38 pp, https://doi.org/10.2312/cr_msm45

Further details:

Mortlock, Richard A; Froelich, Philip N (1989): A simple method for the rapid determination of biogenic opal in pelagic marine sediments. Deep Sea Research Part A. Oceanographic Research Papers, 36(9), 1415-1426, https://doi.org/10.1016/0198-0149(89)90092-7

Coverage:

Latitude: 58.761330 * Longitude: -61.937500

Date/Time Start: 2015-08-10T18:20:00 * Date/Time End: 2015-08-10T18:20:00

Minimum DEPTH, sediment/rock: 0.03 m * Maximum DEPTH, sediment/rock: 12.83 m

Event(s):

MSM45_418-2 (MSM45-19-2) * Latitude: 58.761330 * Longitude: -61.937500 * Date/Time: 2015-08-10T18:20:00 * Elevation: -201.8 m * Location: Labrador Sea * Campaign: * Basis: * Method/Device: Gravity corer (GC)

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	DEPTH, sediment/rock	Depth sed	m	Kolling, Henriette Marie		Geocode
2	Opal, biogenic silica	bSiO2	%	Kolling, Henriette Marie	After Mortlock and Froelich (1981)
3	Accumulation rate per year	Acc rate	g/cm²/a	Kolling, Henriette Marie
4	Accumulation rate, biogenic silica per year	Acc rate bSiO2	g/cm²/a	Kolling, Henriette Marie

License:

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

Status:

Curation Level: Enhanced curation (CurationLevelC)

Size:

655 data points

Data

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

1 Depth sed [m]	2 bSiO2 [%]	3 Acc rate [g/cm²/a]	4 Acc rate bSiO2 [g/cm²/a]
0.03	7.989	0.023967	0.00287
0.08	9.051	0.072407	0.00353
0.13	6.744	0.087678	0.00294
0.18	6.872	0.123690	0.00341
0.23	8.206	0.188736	0.00386
0.28	7.254	0.203098	0.00355
0.33	5.643	0.186209	0.00289
0.38	5.118	0.194470	0.00252
0.43	5.462	0.234853	0.00278
0.48	4.876	0.234064	0.00270
0.53	5.505	0.291780	0.00322
0.58	5.662	0.328396	0.00320
0.63	5.807	0.365816	0.00373
0.68	5.935	0.403599	0.00358
0.73	5.902	0.430822	0.00319
0.78	6.714	0.523661	0.00416
0.83	6.950	0.576862	0.00348
0.87	7.350	0.639458	0.00430
0.93	6.587	0.612600	0.00370
0.98	4.981	0.488174	0.00290
1.03	5.672	0.584259	0.00263
1.08	5.427	0.586080	0.00234
1.13	5.218	0.589590	0.00246
1.18	4.687	0.553089	0.00204
1.23	4.946	0.608403	0.00245
1.28	4.579	0.586135	0.00230
1.33	5.600	0.744782	0.00290
1.38	5.184	0.715437	0.00248
1.43	5.899	0.843520	0.00258
1.48	6.095	0.902037	0.00253
1.53	6.245	0.955495	0.00287
1.58	6.692	1.057356	0.00279
1.63	4.916	0.801298	0.00202
1.68	4.775	0.802276	0.00206
1.73	6.984	1.208192	0.00275
1.78	7.135	1.270001	0.00309
1.83	5.764	1.054896	0.00254
1.88	5.726	1.076516	0.00233
1.93	6.676	1.288412	0.00281
1.98	5.950	1.178096	0.00258
2.03	6.301	1.279176	0.00696
2.08	5.986	1.245106	0.00619
2.13	6.468	1.377642	0.00684
2.18	6.373	1.389227	0.00684
2.23	7.472	1.666317	0.00772
2.28	7.837	1.786849	0.00763
2.33	6.655	1.550682	0.00738
2.38	6.956	1.655460	0.00669
2.43	8.618	2.094170	0.00882
2.48	9.205	2.282905	0.00907
2.53	8.107	2.051128	0.00799
2.58	6.878	1.774554	0.00678
2.63	5.287	1.390603	0.00575
2.68	6.195	1.660229	0.00692
2.73	4.707	1.285121	0.00524
2.78	5.779	1.606581	0.00604
2.83	6.066	1.716766	0.00632
2.88	5.347	1.540038	0.00575
2.93	7.382	2.163004	0.00762
2.98	7.135	2.126325	0.00688
3.03	6.922	2.097316	0.00891
3.08	6.311	1.943763	0.00877
3.13	7.015	2.195649	0.00899
3.18	6.042	1.921463	0.00861
3.23	5.423	1.751681	0.00770
3.28	5.127	1.681663	0.00758
3.33	5.250	1.748314	0.00776
3.38	5.575	1.884343	0.00837
3.43	4.741	1.626060	0.00714
3.48	5.922	2.060835	0.00884
3.53	5.650	1.994482	0.00807
3.58	4.660	1.668311	0.00654
3.63	3.916	1.421424	0.00525
3.68	6.025	2.217237	0.00725
3.73	8.108	3.024390	0.00957
3.78	7.910	2.990012	0.00977
3.83	5.906	2.261902	0.00763
3.88	6.589	2.556658	0.00828
3.98	5.696	2.267012	0.00698
4.03	6.585	2.653905	0.01067
4.08	5.896	2.405565	0.01090
4.13	6.468	2.671196	0.01347
4.18	6.705	2.802551	0.01306
4.28	6.006	2.570463	0.01101
4.33	6.901	2.988291	0.01338
4.38	5.856	2.564765	0.01134
4.43	7.298	3.233123	0.01356
4.48	6.034	2.703451	0.01191
4.53	7.160	3.243560	0.01321
4.58	5.267	2.412486	0.01003
4.63	5.619	2.601411	0.01056
4.68	7.358	3.443769	0.01352
4.78	6.557	3.134447	0.01210
4.83	4.658	2.250012	0.00910
4.88	5.637	2.750772	0.01119
4.93	5.679	2.799505	0.01163
4.98	5.334	2.656273	0.01127
5.03	6.609	3.324568	0.03800
5.08	5.794	2.943410	0.03270
5.13	5.981	3.068171	0.03461
5.18	3.535	1.831323	0.02256
5.23	5.166	2.702015	0.03088
5.28	5.692	3.005535	0.03272
5.33	4.863	2.591773	0.02892
5.38	5.385	2.897278	0.03272
5.43	4.862	2.639965	0.02862
5.53	3.977	2.199496	0.02771
5.58	4.576	2.553378	0.02942
5.63	3.604	2.028879	0.02446
5.68	3.201	1.818390	0.02123
5.78	4.944	2.857396	0.03192
5.83	4.068	2.371541	0.02681
5.88	5.805	3.413619	0.03681
5.93	4.022	2.385194	0.02655
5.98	4.140	2.475766	0.02677
6.03	4.944	2.980986	0.02849
6.08	3.197	1.943544	0.01799
6.18	3.015	1.863572	0.01742
6.28	3.829	2.404670	0.02444
6.38	3.045	1.942827	0.01707
6.43	2.457	1.579647	0.01555
6.48	3.164	2.050182	0.01937
6.53	3.534	2.307994	0.02133
6.58	3.508	2.308420	0.02113
6.63	3.439	2.280054	0.01911
6.68	3.185	2.127363	0.01970
6.73	2.979	2.004776	0.01878
6.78	2.919	1.979123	0.01890
6.83	3.018	2.061370	0.02033
6.88	3.739	2.572514	0.02294
6.93	2.994	2.074579	0.01748
6.98	3.782	2.639635	0.02333
7.03	4.018	2.824428	0.07933
7.08	3.666	2.595410	0.05881
7.13	2.891	2.061233	0.04709
7.18	3.147	2.259663	0.05059
7.23	3.154	2.280360	0.05230
7.28	3.272	2.382235	0.05409
7.33	3.460	2.536352	0.05404
7.38	2.900	2.140122	0.04550
7.43	3.411	2.534691	0.05812
7.48	3.793	2.837442	0.06617
7.53	2.980	2.243659	0.04919
7.63	3.051	2.328203	0.05181
7.68	3.719	2.856520	0.06425
7.73	3.367	2.602852	0.05554
7.78	3.856	2.999647	0.05962
7.83	3.028	2.371060	0.04969
7.88	3.964	3.123906	0.06028
7.93	3.777	2.995492	0.05628
7.98	4.408	3.517558	0.06455
8.03	4.527	3.635277	0.02183
8.08	3.400	2.747559	0.01676
8.13	3.202	2.603000	0.01744
8.18	2.850	2.331343	0.01535
8.23	3.501	2.881602	0.01757
8.28	3.746	3.101883	0.01874
8.33	3.336	2.778641	0.01744
8.38	3.505	2.937055	0.01842
8.43	2.918	2.459821	0.01498
8.53	3.538	3.017913	0.01779
8.63	3.446	2.974003	0.01823
8.68	3.532	3.065956	0.01844
8.73	3.296	2.876987	0.01752
8.78	3.664	3.217252	0.01931
8.88	3.164	2.809508	0.01685
8.93	2.948	2.632526	0.01486
9.03	3.538	3.194813	0.01664
9.13	3.471	3.168573	0.01558
9.18	3.314	3.042379	0.01453
9.23	3.305	3.050700	0.01530
9.28	3.571	3.313829	0.01610
9.33	3.390	3.162863	0.01551
9.38	3.020	2.832671	0.01364
9.43	2.737	2.580572	0.01230
9.53	3.682	3.508941	0.01683
9.63	3.069	2.955613	0.01470
9.73	2.929	2.850174	0.01453
9.78	3.590	3.511077	0.01731
9.83	3.027	2.975656	0.01425
9.88	3.468	3.426464	0.01549
9.93	3.174	3.151349	0.01356
10.03	3.538	3.548613	0.00554
10.13	3.454	3.499406	0.00609
10.23	3.138	3.210626	0.00382
10.28	3.538	3.637063	0.00464
10.33	3.287	3.395978	0.01886
10.38	3.138	3.257019	0.01779
10.43	2.959	3.086713	0.01567
10.53	3.150	3.316603	0.01952
10.63	3.078	3.272070	0.02085
10.73	3.061	3.284409	0.01915
10.78	3.604	3.884599	0.02250
10.88	2.886	3.139913	0.01834
10.93	3.465	3.787642	0.02025
11.03	3.525	3.887528	0.02915
11.13	3.318	3.692740	0.02636
11.23	3.694	4.148416	0.02968
11.28	4.527	5.106591	0.03717
11.33	3.431
11.38	3.694	4.203826	0.01499
11.43	3.735	4.269193	0.03166
11.53	3.434	3.959265	0.02757
11.63	3.668	4.265413	0.03050
11.73	3.121	3.661493	0.02609
11.78	4.892	5.762226	0.03950
11.83	2.906	3.438260	0.02366
11.88	2.790	3.314946	0.02274
11.93	2.537	3.027175	0.02159
12.03	3.850	4.631975	0.05067
12.13	2.607	3.162350	0.03390
12.28	3.590	4.408591	0.04888
12.38	2.631	3.256599	0.03743
12.43	2.807	3.489548	0.03956
12.53	3.590	4.498343	0.04879
12.63	2.787	3.520475	0.03859
12.73	2.387	3.039120	0.23340
12.78	3.694	4.721157	0.35558
12.83	3.062	3.929144	0.00590