Citation:

PANGAEA.958599

Name: Zr/Rb XRF and sortable silt data for IODP Site 382-U1537
Published: 2024-04-11
License: https://creativecommons.org/licenses/by/4.0/
Keywords: grain size analysis; sortable silt; XRF; Zr/Rb

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Abstract:

This dataset contains X-ray fluorescence (XRF) and sortable silt (SS) downcore data for IODP Site U1537. The sediment cores were collected aboard the JOIDES Resolution in 2019 during IODP expedition 382 to the Antarctic Iceberg Alley. XRF measurements were conducted with an Avaatech core scanner in 2019 at the IODP Gulf Coast Repository in College Station, Texas. Following the method of McCave et al., 2006/2017, Sortable Silt measurements and XRF calibration was conducted at the Alfred-Wegener-Institute in Bremerhaven, Germany between late summer of 2020 and the end of 2021. The aim of this study is to provide a method of XRF-derived grain size and ultimately current velocity measurements that allows for the fast and reliable interpretation of long sediment cores.

Keyword(s):

grain size analysis; sortable silt; XRF; Zr/Rb

Supplement to:

Ronge, Thomas A; Dbritto, Sharon (2024): Data report: using XRF scanning–derived grain size analysis for rapid assessment of bottom current velocities on long drill cores from the southern Scotia Sea, IODP Expedition 382. In: Weber, ME, Raymo, ME, Peck, VL, Williams, T, Expedition 382 Scientists, Volume 382: Iceberg Alley and Subantarctic Ice and Ocean Dynamics, Proceedings of the International Ocean Discovery Program, 382, International Ocean Discovery Program, 382, https://doi.org/10.14379/iodp.proc.382.201.2024

References:

McCave, I Nick; Hall, Ian R (2006): Size sorting in marine muds: Processes, pitfalls, and prospects for paleoflow-speed proxies. Geochemistry, Geophysics, Geosystems, 7(10), https://doi.org/10.1029/2006GC001284

McCave, I Nick; Thornalley, David J R; Hall, Ian R (2017): Relation of sortable silt grain-size to deep-sea current speeds: Calibration of the 'Mud Current Meter'. Deep Sea Research Part I: Oceanographic Research Papers, 127, 1-12, https://doi.org/10.1016/j.dsr.2017.07.003

Project(s):

Integrated Ocean Drilling Program / International Ocean Discovery Program (IODP)

Coverage:

Latitude: -59.111000 * Longitude: -40.906000

Minimum DEPTH, sediment/rock: 27.62 m * Maximum DEPTH, sediment/rock: 35.17 m

Event(s):

382-U1537 * Latitude: -59.111000 * Longitude: -40.906000 * Elevation: -3712.0 m * Campaign: * Basis: Joides Resolution * Method/Device: Composite Core (COMPCORE)

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	DEPTH, sediment/rock	Depth sed	m	Ronge, Thomas A		Geocode
2	Zirconium/Rubidium ratio	Zr/Rb		Ronge, Thomas A	X-ray fluorescence core scanner (XRF), Avaatech
3	ln-Zirconium/Rubidium ratio	ln(Zr/Rb)		Ronge, Thomas A	X-ray fluorescence core scanner (XRF), Avaatech
4	Bottom current velocity	Bot cur vel	cm/s	Ronge, Thomas A	Calculated, following McCave et al., 2006; 2017
5	Size fraction 0.063-0.010 mm, sortable silt	63-10 µm sort silt	%	Ronge, Thomas A	Calculated, following McCave et al., 2006; 2017
6	Sortable-silt mean	SS	µm	Ronge, Thomas A	Calculated, following McCave et al., 2006; 2017

License:

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

Status:

Curation Level: Enhanced curation (CurationLevelC)

Size:

355 data points

Data

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

1 Depth sed [m]	2 Zr/Rb	3 ln(Zr/Rb)	4 Bot cur vel [cm/s]	5 63-10 µm sort silt [%]	6 SS [µm]
27.62	2.223502304	0.799083567	15.469	52.178	21.357
27.68	2.496805897	0.915012274	14.283	52.174	20.657
27.76	2.284399225	0.826103068	15.673	49.949	21.477
27.92	1.955103970	0.670443373	12.377	50.260	19.532
28.00	1.852267625	0.616410632	12.871	48.963	19.824
28.08	2.131772268	0.756953685	14.730	49.389	20.921
28.24	2.105986696	0.744784097	13.105	46.640	19.962
28.32	2.026113014	0.706119186	13.087	46.968	19.951
28.40	1.975437136	0.680789708	13.070	47.629	19.941
28.48	2.151217428	0.766033928	8.208	45.773	17.073
28.60	1.773531778	0.572972913	11.668	42.693	19.114
28.72	1.941550696	0.663486982	12.145	45.108	19.395
28.80	2.036858974	0.711408903	11.781	44.764	19.181
28.88	1.975475687	0.680809224	13.929	44.694	20.448
28.96	2.025278810	0.705707375	12.089	45.436	19.362
29.10	2.025795357	0.705962392	12.197	42.359	19.426
29.11	2.002513615	0.694403199	10.627	40.741	18.500
29.12	2.030240265	0.708154143	11.986	40.510	19.302
29.12	2.157920311	0.769144939	11.488	40.289	19.008
29.13	2.285589137	0.826623819	9.581	37.642	17.883
29.14	2.080488833	0.732602882	8.802	37.759	17.423
29.15	2.102129509	0.742950883	10.652	38.782	18.515
29.16	2.103756708	0.743724655	7.353	35.954	16.568
29.16	1.895918367	0.639703348	10.256	36.864	18.281
29.17	2.079801871	0.732272635	8.489	34.922	17.239
29.18	1.934300685	0.659745858	9.179	32.778	17.646
29.19	2.012225970	0.699241557	6.504	31.099	16.067
29.20	2.083645443	0.734118977	9.170	33.710	17.640
29.20	1.964566929	0.675271829	6.867	33.929	16.282
29.21	2.188541243	0.783235223	12.060	33.129	19.345
29.22	2.085523571	0.735019937	10.107	33.611	18.193
29.24	2.036672630	0.711317412	7.632	30.136	16.733
30.59	1.819581281	0.598606409	9.887	32.079	18.063
30.60	1.694575472	0.527432250	7.588	32.121	16.707
30.61	1.735809807	0.551474052	9.152	30.300	17.630
30.67	1.703692115	0.532797728	8.452	25.961	17.217
32.00	1.612213347	0.477607985	13.685	38.006	20.304
32.07	1.617087783	0.480626867	13.571	38.549	20.237
32.16	1.643293428	0.496702416	11.042	38.247	18.745
32.24	1.613110290	0.478164172	12.339	37.525	19.510
32.34	1.702200385	0.531921758	10.314	41.302	18.315
32.38	1.584996848	0.460582419	11.482	42.366	19.004
32.48	1.673446328	0.514885169	9.829	41.362	18.029
32.56	1.746047190	0.557354485	11.248	40.264	18.866
32.64	1.630676552	0.488994992	7.418	33.470	16.607
32.74	1.564806273	0.447762029	9.095	40.505	17.596
32.80	1.619616685	0.482189507	11.034	41.727	18.740
32.88	1.653640018	0.502978930	9.355	39.733	17.749
32.96	1.630957070	0.489167002	10.535	40.587	18.446
33.04	1.681596884	0.519743868	10.059	39.632	18.165
33.12	1.556854016	0.442667129	10.457	38.952	18.400
33.20	1.614068084	0.478757752	9.167	36.977	17.638
33.28	1.594008454	0.466251884	10.986	42.206	18.712
33.44	1.590284316	0.463912815	11.642	42.415	19.099
33.52	1.580808081	0.457936160	10.298	40.741	18.306
33.62	1.607510381	0.474686635	10.159	38.211	18.224
33.68	1.616563361	0.480302514	10.637	41.293	18.506
33.76	1.677436630	0.517266813	11.312	39.896	18.904
33.84	1.600154530	0.470100206	13.165	39.099	19.997
33.92	1.625621677	0.485890313	11.064	37.552	18.758
34.00	1.551473022	0.439204817	9.311	36.466	17.724
34.08	1.546628680	0.436077517	9.671	38.358	17.936
34.16	1.646128901	0.498426411	9.796	41.719	18.009
34.24	1.597834493	0.468649271	9.054	40.326	17.572
34.32	1.565857541	0.448433623	10.285	43.193	18.298
34.40	1.606619187	0.474132087	10.632	41.973	18.503
34.48	1.633682961	0.490836951	9.052	39.707	17.570
34.56	1.750495835	0.559899082	8.786	43.574	17.414
34.72	1.732351136	0.549479524	12.099	41.607	19.368
34.80	1.633861386	0.490946162	10.608	41.369	18.489
35.17	1.562574970	0.446335082	10.514	41.919	18.433