Citation:

93PA00784

Name: (Table 4) Sediment composition, d15N, and Th-normalized paleoflux and ex. 231Pa 0/ex. 230Th 0 activity ratio in core MD84-527
Published: 1993
License: https://creativecommons.org/licenses/by/3.0/

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Project(s):

Silicon Cycling in the World Ocean (SINOPS)

Funding:

Fourth Framework Programme (FP4), grant/award no. MAS3970141 : Silicon Cycling in the World Ocean

Coverage:

Latitude: -43.821700 * Longitude: 51.318300

Date/Time Start: 1984-01-01T00:00:00 * Date/Time End: 1984-01-01T00:00:00

Minimum DEPTH, sediment/rock: 0.10 m * Maximum DEPTH, sediment/rock: 5.48 m

Event(s):

MD84-527 * Latitude: -43.821700 * Longitude: 51.318300 * Date/Time: 1984-01-01T00:00:00 * Elevation: -3262.0 m * Recovery: 14.9 m * Location: South Indian Ocean * Campaign: (APSARA2) * Basis: Marion Dufresne (1972) * Method/Device: Piston corer (PC)

Comment:

AGE (ka) is based on accelerator mass spectrometry 14C dates (Labracherie et al., 1989) dataset: doi:10.1594/PANGAEA.358352. Paleofluxes and ex. 231Pa 0/ex. 230Th 0 activity ratios computed with the assumption that authigenic U was added to these sediment sections at 14 ka B.P.

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	Calcium carbonate	CaCO3	%	Francois, Roger	Element analysis, Vacuum-gasometric (Jones & Kaiteris, 1983)
4	Opal, biogenic silica	bSiO2	%	Francois, Roger	Opal, extraction; Mortlock & Froelich, 1989
5	Terrigenous	Terr	%	Francois, Roger
6	Nitrogen, total	TN	%	Francois, Roger	Element analyser CHN
7	δ15N, organic matter	δ15N OM	‰ air	Francois, Roger	Mass spectrometer Finnigan MAT 251
8	Accumulation rate, mass	MAR	g/cm²/ka	Francois, Roger	Calculated	minimum
9	Accumulation rate, mass	MAR	g/cm²/ka	Francois, Roger	Calculated	maximum
10	Protactinium-231/Thorium-230 excess	231Pa/230Th xs		Francois, Roger	Calculated	minimum
11	Protactinium-231/Thorium-230 excess	231Pa/230Th xs		Francois, Roger	Calculated	maximum

License:

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

Size:

297 data points

Data

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

1 Depth sed [m]	2 Age [ka BP]	3 CaCO3 [%] (Element analysis, Vacuum-gaso...)	4 bSiO2 [%] (Opal, extraction; Mortlock & ...)	5 Terr [%]	6 TN [%] (Element analyser CHN)	7 δ15N OM [‰ air] (Mass spectrometer Finnigan MA...)	8 MAR [g/cm²/ka] (minimum, Calculated)	9 MAR [g/cm²/ka] (maximum, Calculated)	10 231Pa/230Th xs (minimum, Calculated)	11 231Pa/230Th xs (maximum, Calculated)
0.10	2.14	0.23	0.60	0.17	0.090	4.2	0.89	0.90	0.111	0.112
0.20	2.54	0.17			0.084	4.0
0.30	2.93	0.27	0.56	0.17	0.079	4.5	0.94	0.95	0.117	0.118
0.58	3.94	0.25			0.082	4.7
0.78	4.66	0.26	0.52	0.22	0.077	4.9	0.79	0.81	0.098	0.099
0.98	5.33	0.26	0.46	0.28	0.073	4.9	0.91	0.93
1.34	6.49	0.31	0.51	0.18	0.073	5.0	0.89	0.90
1.48	6.97	0.26			0.071	4.9
1.58	7.31	0.28	0.59	0.14	0.075	4.5	1.49	1.52	0.175	0.177
1.68	7.71	0.21			0.080	4.7
1.78	8.10	0.23			0.083	4.8
1.88	8.49	0.20	0.57	0.23	0.110	4.6	1.60	1.63	0.162	0.164
1.98	8.88	0.28	0.56	0.16	0.084	4.6	1.44	1.46	0.162	0.164
2.08	9.18	0.28			0.085	4.3
2.18	9.48	0.26	0.56	0.18	0.077	4.5	1.52	1.56	0.150	0.153
2.28	9.78	0.29	0.54	0.17	0.045	4.5	1.52	1.56	0.183	0.187
2.38	10.10	0.31	0.49	0.20	0.049	5.0	1.33	1.37	0.098	0.100
2.46	10.30	0.39	0.36	0.25	0.048	5.1	1.08	1.10	0.103	0.105
2.56	10.80	0.37	0.37	0.26	0.061	6.1	0.95	0.98
2.68	11.43	0.22	0.51	0.27	0.054	6.2	1.08	1.12	0.119	0.121
2.89	12.70	0.27	0.33	0.40	0.053	6.4	0.82	0.85
2.98	15.73	0.15	0.39	0.46	0.062	6.3	0.94	0.98	0.099	0.101
3.08	19.63	0.12	0.42	0.46	0.065	6.2	0.94	0.99	0.086	0.090
3.18	23.50	0.13	0.47	0.40	0.040	5.4	1.14	1.20	0.114	0.017
3.28	25.65	0.14			0.081	5.3
3.38	26.50	0.12	0.49	0.39	0.076	4.5	1.74	1.85	0.138	0.142
3.38	26.50						1.53	1.63	0.135	0.139
3.48	27.10	0.14	0.47	0.39	0.068	5.0	1.59	1.67	0.118	0.122
3.48	27.10						1.34	1.41	0.116	0.122
3.58	27.55	0.13			0.072	5.3
3.68	27.99	0.17			0.068	4.6
3.86	28.80	0.15	0.62	0.23	0.055	5.0	1.80	1.87	0.135	0.138
4.06	30.00	0.14	0.68	0.18	0.078	4.6	1.88	1.95	0.149	0.152
4.28	31.30	0.22	0.57	0.21	0.071	5.1	1.43	1.48
4.48	32.50	0.08	0.62	0.30	0.062	5.1	1.47	1.55	0.103	0.105
4.68	33.60	0.18	0.54	0.28	0.065	5.1	1.38	1.47
4.78	34.19	0.08			0.072	5.1
4.85	34.60	0.17	0.58	0.25	0.061	4.9	1.51	1.58
4.98	35.39	0.12			0.067	5.0
5.08	36.00	0.14	0.66	0.20	0.073	4.8	1.75	1.82	0.135	0.138
5.16	36.47	0.14	0.65	0.21	0.058	5.0	1.61	1.67	0.126	0.129
5.28	37.20	0.21	0.52	0.27	0.058	5.3	1.23	1.28	0.138	0.142
5.48	38.40	0.16	0.57	0.27	0.050	5.6	1.55	1.64	0.106	0.107