Citation:

epic.28308.d001

Name: Rare earth element content of the clay fraction from sediment core CRP-1 (Table 2)
Published: 1998
License: https://creativecommons.org/licenses/by/3.0/

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Abstract:

TEM observations on smectites and REE analyses on the clay minerals of the sediments of CRP-1 core were carried out to investigate their origin and the source rocks from which they were derive from. Smectites are mostly dioctahedral, but Fe-Mg richer than in other cores from Ross Sea. In addition, small amounts of nontronites and trioctahedral smectites (probably saponites) were found. Smectite microparticles are mainly flaky, but significant percentages of hairy smectites were also recognized. Micromorphologies indicate that smectites were derived from the continent but, in addition, they formed in situ through recrystallisation processes. The shale-normalised rare earth elements patterns are very homogeneous, and their features are typical of land-derived sediments. The smectites of CRP-1 formed from parent rocks influenced by volcanic activity, and the source areas probably represented by both the basaltic rocks of the the McMurdo Volcanic Group and the complex of basement and sedimentary rocks cropping out in the Transantarctic Mountains.

Project(s):

Cape Roberts Project (CRP)

Coverage:

Latitude: -77.007580 * Longitude: 163.755080

Date/Time Start: 1997-10-17T01:30:00 * Date/Time End: 1997-10-24T02:00:00

Minimum DEPTH, sediment/rock: 20.84 m * Maximum DEPTH, sediment/rock: 147.03 m

Event(s):

CRP-1 (16 km ENE Cape Roberts) * Latitude: -77.007580 * Longitude: 163.755080 * Date/Time Start: 1997-10-17T01:30:00 * Date/Time End: 1997-10-24T02:00:00 * Elevation: -153.5 m * Penetration: 132.06 m * Recovery: 113.32 m * Location: off Cape Roberts, Ross Sea, Antarctica * Campaign: * Basis: Sampling/drilling ice * Method/Device: Core wireline system (CWS) * Comment: sea ice thickness: 1.60 m, recovery 86 %. Age and lithology of oldest strata: 22-24 Ma; mudstone with scattered pebbles.

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	DEPTH, sediment/rock	Depth sed	m			Geocode
2	Lanthanum	La	mg/kg	Setti, Massimo	Inductively coupled plasma - mass spectrometry (ICP-MS)
3	Cerium	Ce	mg/kg	Setti, Massimo	Inductively coupled plasma - mass spectrometry (ICP-MS)
4	Praseodymium	Pr	mg/kg	Setti, Massimo	Inductively coupled plasma - mass spectrometry (ICP-MS)
5	Neodymium	Nd	mg/kg	Setti, Massimo	Inductively coupled plasma - mass spectrometry (ICP-MS)
6	Samarium	Sm	mg/kg	Setti, Massimo	Inductively coupled plasma - mass spectrometry (ICP-MS)
7	Europium	Eu	mg/kg	Setti, Massimo	Inductively coupled plasma - mass spectrometry (ICP-MS)
8	Gadolinium	Gd	mg/kg	Setti, Massimo	Inductively coupled plasma - mass spectrometry (ICP-MS)
9	Terbium	Tb	mg/kg	Setti, Massimo	Inductively coupled plasma - mass spectrometry (ICP-MS)
10	Dysprosium	Dy	mg/kg	Setti, Massimo	Inductively coupled plasma - mass spectrometry (ICP-MS)
11	Holmium	Ho	mg/kg	Setti, Massimo	Inductively coupled plasma - mass spectrometry (ICP-MS)
12	Erbium	Er	mg/kg	Setti, Massimo	Inductively coupled plasma - mass spectrometry (ICP-MS)
13	Thulium	Tm	mg/kg	Setti, Massimo	Inductively coupled plasma - mass spectrometry (ICP-MS)
14	Ytterbium	Yb	mg/kg	Setti, Massimo	Inductively coupled plasma - mass spectrometry (ICP-MS)
15	Lutetium	Lu	mg/kg	Setti, Massimo	Inductively coupled plasma - mass spectrometry (ICP-MS)

License:

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

Size:

210 data points

Data

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

1 Depth sed [m]	2 La [mg/kg]	3 Ce [mg/kg]	4 Pr [mg/kg]	5 Nd [mg/kg]	6 Sm [mg/kg]	7 Eu [mg/kg]	8 Gd [mg/kg]	9 Tb [mg/kg]	10 Dy [mg/kg]	11 Ho [mg/kg]	12 Er [mg/kg]	13 Tm [mg/kg]	14 Yb [mg/kg]	15 Lu [mg/kg]
20.84	33.54	66.08	7.61	27.62	5.20	1.18	4.47	0.71	4.18	0.85	2.33	0.34	2.18	0.34
25.83	40.40	78.78	8.95	31.91	5.75	1.36	4.90	0.74	4.18	0.87	2.34	0.35	2.12	0.34
27.66	39.53	76.55	8.90	31.60	6.30	1.57	4.82	0.72	4.11	0.81	2.18	0.33	2.06	0.32
46.60	57.69	116.65	13.79	52.23	9.82	2.38	8.08	1.23	7.07	1.40	3.83	0.53	3.15	0.48
61.60	47.51	94.20	10.95	39.73	7.76	1.66	6.41	0.99	5.80	1.20	3.19	0.48	2.98	0.46
69.96	28.19	57.12	6.59	24.32	4.88	1.05	3.97	0.63	3.75	0.77	2.03	0.31	1.91	0.30
82.58	52.60	106.39	12.34	45.37	8.25	1.78	6.87	1.05	6.11	1.23	3.24	0.49	3.07	0.46
92.77	55.33	112.47	12.67	46.01	8.62	1.79	7.15	1.09	6.48	1.29	3.53	0.53	3.17	0.48
97.39	38.54	76.07	8.81	32.49	5.91	1.30	5.13	0.80	4.76	0.96	2.69	0.39	2.43	0.37
99.95	55.28	111.10	12.78	47.64	8.82	1.98	7.74	1.12	6.62	1.36	3.48	0.52	3.15	0.48
109.09	29.67	58.34	6.68	23.97	4.49	1.00	3.90	0.63	3.61	0.77	2.05	0.31	1.96	0.29
122.23	32.83	63.14	7.25	26.43	4.95	1.12	4.23	0.67	3.94	0.84	2.14	0.33	2.14	0.34
134.31	45.75	89.13	10.28	37.32	7.02	1.61	5.74	0.89	5.19	1.05	2.73	0.43	2.62	0.40
142.34	43.95	84.41	9.70	34.87	6.57	1.47	5.64	0.87	5.06	1.03	2.73	0.41	2.48	0.38
147.03	48.72	94.54	10.78	38.67	7.14	1.53	5.89	0.91	5.24	1.08	2.83	0.41	2.58	0.39