Citation:

epic.28324.d001

Name: Selected major elements and trace elements of ferrar dolerite clasts from sediment core CRP-1 (Table 1,2)
Creator: Philip R Kyle
Published: 1998
License: https://creativecommons.org/licenses/by/3.0/

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Abstract:

One of the objectives of the Cape Roberts Project is to study the tectonic history of the western Ross Sea region. Timing of the uplift of the Transantarctic Mountains, which are adjacent to the drillsite, will be a component of the tectonic studies (International Steering Committee, 1994; Cale Roberts Science Team, 1998a). The study of the clast samples from the core will be an important means of providing insight into the timing of uplift of the Transantarctic Mountains.

Tholeiitic igneous rocks of the Jurassic (180 Ma) Ferrar large igneous province (FLIP) are widespreaded along the Transantarctic Mountains and have the potential to provide distinct indicators of erosion during uplift of the mountains. In the Transantarctic Mountains adjacent to the Cape Roberts drill site the FLIP is represented by lavas and pyroclastic of the Kirkpatrick basalts and by thick Ferrar dolerite sills which intrude the Beacon Supergroup sediments and, occasionally, the granitic basement rocks. In the Prince Albert Mountains, the youngest Kirkpatrick basalt lava is over 150 m thick, and has a very distinct high TiO2 chemical composition which is unique in the FLIP. If such rocks can be identified in the core they may provide precise timing of the initiation of uplift and denudation of the Transantarctic Mountains.

Here we report on an examination of 20 Ferrar dolerite clasts. This brief report is intended as a pilot study to the examination of FLIP clasts from older drillcore.

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: 21.84 m * Maximum DEPTH, sediment/rock: 137.16 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	Sample volume	Samp vol	cm³	Kyle, Philip R
3	Comment	Comment		Kyle, Philip R
4	Silicon dioxide	SiO2	%	Kyle, Philip R	X-ray fluorescence (XRF)
5	Titanium dioxide	TiO2	%	Kyle, Philip R	X-ray fluorescence (XRF)
6	Aluminium oxide	Al2O3	%	Kyle, Philip R	X-ray fluorescence (XRF)
7	Iron oxide, Fe2O3	Fe2O3	%	Kyle, Philip R	X-ray fluorescence (XRF)
8	Manganese oxide	MnO	%	Kyle, Philip R	X-ray fluorescence (XRF)
9	Magnesium oxide	MgO	%	Kyle, Philip R	X-ray fluorescence (XRF)
10	Calcium oxide	CaO	%	Kyle, Philip R	X-ray fluorescence (XRF)
11	Sodium oxide	Na2O	%	Kyle, Philip R	X-ray fluorescence (XRF)
12	Potassium oxide	K2O	%	Kyle, Philip R	X-ray fluorescence (XRF)
13	Phosphorus pentoxide	P2O5	%	Kyle, Philip R	X-ray fluorescence (XRF)
14	Loss on ignition	LOI	%	Kyle, Philip R	X-ray fluorescence (XRF)
15	Sum	Sum	%	Kyle, Philip R	X-ray fluorescence (XRF)
16	Vanadium	V	mg/kg	Kyle, Philip R	X-ray fluorescence (XRF)
17	Chromium	Cr	mg/kg	Kyle, Philip R	X-ray fluorescence (XRF)
18	Nickel	Ni	mg/kg	Kyle, Philip R	X-ray fluorescence (XRF)
19	Copper	Cu	mg/kg	Kyle, Philip R	X-ray fluorescence (XRF)
20	Zinc	Zn	mg/kg	Kyle, Philip R	X-ray fluorescence (XRF)
21	Gallium	Ga	mg/kg	Kyle, Philip R	X-ray fluorescence (XRF)
22	Rubidium	Rb	mg/kg	Kyle, Philip R	X-ray fluorescence (XRF)
23	Strontium	Sr	mg/kg	Kyle, Philip R	X-ray fluorescence (XRF)
24	Yttrium	Y	mg/kg	Kyle, Philip R	X-ray fluorescence (XRF)
25	Zirconium	Zr	mg/kg	Kyle, Philip R	X-ray fluorescence (XRF)
26	Niobium	Nb	mg/kg	Kyle, Philip R	X-ray fluorescence (XRF)
27	Barium	Ba	mg/kg	Kyle, Philip R	X-ray fluorescence (XRF)
28	Lead	Pb	mg/kg	Kyle, Philip R	X-ray fluorescence (XRF)
29	Thorium	Th	mg/kg	Kyle, Philip R	X-ray fluorescence (XRF)
30	Uranium	U	mg/kg	Kyle, Philip R	X-ray fluorescence (XRF)

License:

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

Size:

276 data points

Data

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

1 Depth sed [m]	2 Samp vol [cm³]	3 Comment	4 SiO2 [%]	5 TiO2 [%]	6 Al2O3 [%]	7 Fe2O3 [%]	8 MnO [%]	9 MgO [%]	10 CaO [%]	11 Na2O [%]	12 K2O [%]	13 P2O5 [%]	14 LOI [%]	15 Sum [%]	16 V [mg/kg]	17 Cr [mg/kg]	18 Ni [mg/kg]	19 Cu [mg/kg]	20 Zn [mg/kg]	21 Ga [mg/kg]	22 Rb [mg/kg]	23 Sr [mg/kg]	24 Y [mg/kg]	25 Zr [mg/kg]	26 Nb [mg/kg]	27 Ba [mg/kg]	28 Pb [mg/kg]	29 Th [mg/kg]	30 U [mg/kg]
21.84	20	coarse grained >1mm dolerite, strong deuteric alt., granophyric groundm.
32.82	60	alt. coarse grained >1mm dolerite, chlorite and biotite repl pyrox	54.00	1.22	17.19	8.50	0.12	3.53	7.32	3.14	2.46	0.33	0.81	98.62	153	28	11	20	95	22	74	688	34	144	10	1144	13	9
39.00	3	fine grained < 0.5 mm equigranular dolerite, abundt. cryptocryst groundmass
41.37	6	coarse grained >1mm dolerite, deuteric alt., granophyric mesostasis
55.00	60	strongly deuteric altered medium grained 0.5-1 mm dolerite, chloritized	60.57	1.45	11.65	13.56	0.16	1.14	4.83	2.89	2.28	0.24	1.08	99.86	153		6	86	130	19	91	106	58	267	9	510	16	12	4
63.12	40	strongly deuteric altered medium grained 0.5-1 mm dolerite	56.34	0.92	13.95	11.00	0.17	4.31	8.69	2.31	1.29	0.15	0.98	100.10	280	50	50	108	93	17	47	133	34	156	5	340	11	7	3
72.97	25	altered coarse grained >1mm dolerite, chlorite and biotite replace pyrox	54.66	0.60	14.71	10.02	0.16	6.26	10.18	1.95	0.88	0.10	0.53	100.06	269	114	79	74	79	15	32	138	23	95		236	7	6
92.20	6	fine grained < 0.5 mm dolerite, sub-ophitic texture, strong deuteric alt.
96.72	20	coarse grained >1mm dolerite, deuteric alt.
104.49	12	altered medium grained 0.5-1 mm dolerite, chlorite and biotite replace pyrox
106.15	4	coarse grained >1mm dolerite, deuteric altered and cryptocrystalline mesostasis
108.41	60	coarse grained >1mm dolerite, sub-ophitic texture, deuteric altered pyrox	54.70	0.78	14.17	10.58	0.16	5.40	9.64	2.15	1.09	0.11	0.57	99.36	284	76	71	123	83	17	39	131	27	116	3	280	9	7	3
123.19	60	coarse grained >1mm dolerite, deuteric alt. of pyrox, sec. chlorite	54.57	0.75	16.23	10.42	0.16	3.92	9.72	2.54	1.07	0.10	0.67	100.15	242	15	36	142	80	18	41	147	26	109		271	9	7	2
125.95	6	coarse grained >1mm dolerite, sub-ophitic texture, deuteric altered pyrox
127.48	20	strongly deuteric altered fine grained < 0.5 mm dolerite
131.28	35	fine grained < 0.5 mm equigranular dolerite, pyrox repl. by chlorite and biotite	54.67	1.08	17.54	8.52	0.14	3.04	5.83	3.78	3.10	0.36	0.80	98.85	132	8	8	8	103	21	126	576	34	211	11	688	12	10	2
132.62	20	altered coarse grained >1mm dolerite, chlorite and biotite replace pyrox
133.09	4	coarse grained >1mm dolerite, deuteric alt. of pyrox, sec. chlorite
134.63	45	coarse grained >1mm dolerite, deuteric alt. of pyrox	53.38	0.67	16.11	10.11	0.16	4.53	10.18	2.20	0.99	0.09	0.59	99.01	254	20	49	125	79	17	37	137	24	95		247	9	6
137.16	50	coarse grained >1mm dolerite, deuteric alt. and cryptocryst mesostasis	54.36	0.79	14.26	10.47	0.16	4.41	8.92	2.34	1.15	0.13	0.93	97.92	279	23	51	156	86	17	37	145	27	133	3	308	9	7	2