Citation:

PANGAEA.972390 (DOI registration in progress)

Name: Major elemental compositions of phrenite, titanite, and rutile in mafic rocks from the Langseth Ridge (Gakkel Ridge)
Published: 2024
License: https://creativecommons.org/licenses/by/4.0/
Keywords: basalt; Gakkel ridge; Geochemistry; Mid-Ocean Ridge; Ultraslow-spreading; Volcanic center

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Abstract:

This dataset contains mineral chemical data of primary and alteration phases in mafic rocks (basalt and diabase) from the Langseth Ridge and Afanasenkov Seamount, two volcanic centers on the ultraslow-spreading Gakkel Ridge, Arctic Ocean. The samples were collected during R/V Polarstern Expeditions PS78 and PS101 and USCGC HEALY Expedition HLY0102. Major elemental compositions were collected via electron microprobe. Details on the analytical procedure can be found in Albers et al. (2024).

Keyword(s):

basalt; Gakkel ridge; Geochemistry; Mid-Ocean Ridge; Ultraslow-spreading; Volcanic center

Related to:

Albers, Elmar; Behrendt, Nele; Diehl, Alexander; Genske, Felix; Monien, Patrick; Kasemann, Simone A; Purser, Autun; Boetius, Antje; Bach, Wolfgang (2024): Formation and hydrothermal alteration of a volcanic center: Melt pooling and mass transfers at Langseth Ridge (Gakkel Ridge, Arctic Ocean). Marine Geology, 475, 107347, https://doi.org/10.1016/j.margeo.2024.107347

Coverage:

Median Latitude: 86.745533 * Median Longitude: 55.247167 * South-bound Latitude: 86.041667 * West-bound Longitude: 30.080000 * North-bound Latitude: 86.961667 * East-bound Longitude: 61.618330

Date/Time Start: 2001-08-27T21:54:00 * Date/Time End: 2016-10-07T02:56:00

Minimum Elevation: -4531.0 m * Maximum Elevation: -1970.2 m

Event(s):

HLY0102/D46 (D46) * Latitude: 86.041667 * Longitude: 30.080000 * Date/Time Start: 2001-08-27T21:54:00 * Date/Time End: 2001-08-28T00:15:00 * Elevation: -4531.0 m * Campaign: * Basis: Healy * Method/Device: Dredge (DRG) * Comment: MAPR/~1000 lbs of greenstone and old basalt gravel, quartzite; sponges; MAPR small LSS peak ~3400 m.

HLY0102/D56 (D56) * Latitude Start: 86.961667 * Longitude Start: 61.473333 * Latitude End: 86.945000 * Longitude End: 61.585000 * Date/Time Start: 2001-09-01T21:31:00 * Date/Time End: 2001-09-01T22:49:00 * Elevation Start: -3474.0 m * Elevation End: -3085.0 m * Campaign: * Basis: Healy * Method/Device: Dredge (DRG) * Comment: MAPR/greenstone, diabase, basalt breccia; MAPR very tiny hint of LSS and temp peaks at 2300-2600 m

PS101/203-1 * Latitude Start: 86.890000 * Longitude Start: 61.618330 * Latitude End: 86.889330 * Longitude End: 61.479170 * Date/Time Start: 2016-10-07T02:30:00 * Date/Time End: 2016-10-07T02:56:00 * Elevation Start: -2010.6 m * Elevation End: -1970.2 m * Location: Arctic Ocean * Campaign: (ARK-XXX/3) * Basis: * Method/Device: Dredge, chain bag (DRG_C)

Comment:

Compositions of phrenite, titanite, and rutile with cations calculated on a basis of 11, 5, and 2 O, respectively.

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	Event label	Event		Albers, Elmar
2	Sample code/label	Sample label		Albers, Elmar
3	Phase	Phase		Albers, Elmar
4	International Generic Sample Number	IGSN		Albers, Elmar
5	Silicon dioxide	SiO2	%	Albers, Elmar	Electron microprobe (EMP)
6	Titanium dioxide	TiO2	%	Albers, Elmar	Electron microprobe (EMP)
7	Aluminium oxide	Al2O3	%	Albers, Elmar	Electron microprobe (EMP)
8	Iron oxide, FeO	FeO	%	Albers, Elmar	Electron microprobe (EMP)
9	Manganese oxide	MnO	%	Albers, Elmar	Electron microprobe (EMP)
10	Magnesium oxide	MgO	%	Albers, Elmar	Electron microprobe (EMP)
11	Calcium oxide	CaO	%	Albers, Elmar	Electron microprobe (EMP)
12	Sodium oxide	Na2O	%	Albers, Elmar	Electron microprobe (EMP)
13	Total	Total	%	Albers, Elmar	Electron microprobe (EMP)
14	Silicon	Si	# of ions	Albers, Elmar	Electron microprobe (EMP)	cations per formula unit (pfu)
15	Titanium	Ti	# of ions	Albers, Elmar	Electron microprobe (EMP)	cations per formula unit (pfu)
16	Aluminium	Al	# of ions	Albers, Elmar	Electron microprobe (EMP)	cations per formula unit (pfu)
17	Iron 2+ and 3+	Fe	# of ions	Albers, Elmar	Electron microprobe (EMP)	cations per formula unit (pfu)
18	Manganese	Mn	# of ions	Albers, Elmar	Electron microprobe (EMP)	cations per formula unit (pfu)
19	Magnesium	Mg	# of ions	Albers, Elmar	Electron microprobe (EMP)	cations per formula unit (pfu)
20	Calcium	Ca	# of ions	Albers, Elmar	Electron microprobe (EMP)	cations per formula unit (pfu)
21	Sodium	Na	# of ions	Albers, Elmar	Electron microprobe (EMP)	cations per formula unit (pfu)
22	Cations, sum	Cations	# of ions	Albers, Elmar	Electron microprobe (EMP)	cations per formula unit (pfu)

License:

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

Status:

Curation Level: Enhanced curation (CurationLevelC)

Size:

307 data points

Data

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

1 Event	2 Sample label	3 Phase	4 IGSN	5 SiO2 [%]	6 TiO2 [%]	7 Al2O3 [%]	8 FeO [%]	9 MnO [%]	10 MgO [%]	11 CaO [%]	12 Na2O [%]	13 Total [%]	14 Si [# of ions]	15 Ti [# of ions]	16 Al [# of ions]	17 Fe [# of ions]	18 Mn [# of ions]	19 Mg [# of ions]	20 Ca [# of ions]	21 Na [# of ions]	22 Cations [# of ions]
PS101/203-1	PS101/203-R4B	prehnite	https://doi.org/10.58052/IEGAK000D	43.20	0.17	24.46	1.34		0.42	26.25	0.02	96.10	2.965	0.009	1.978	0.077	0.000	0.043	1.930	0.003	7.018
PS101/203-1	PS101/203-R4B	prehnite	https://doi.org/10.58052/IEGAK000D	43.60	0.07	24.55	0.71	0.04		26.97	0.05	96.25	2.982	0.004	1.979	0.041	0.002	0.000	1.976	0.007	7.006
PS101/203-1	PS101/203-R4B	prehnite	https://doi.org/10.58052/IEGAK000D	43.24	0.01	24.16	1.09	0.01		27.50	0.04	96.28	2.970	0.001	1.956	0.063	0.001	0.000	2.024	0.005	7.033
HLY0102/D46	HLY0102/D46-39A	titanite	https://doi.org/10.58052/IEGAK000H	31.26	31.84	3.38	2.20	0.03	0.30	28.50	0.01	97.85	1.042	0.799	0.133	0.061	0.001	0.015	1.018	0.001	3.079
HLY0102/D46	HLY0102/D46-39A	titanite	https://doi.org/10.58052/IEGAK000H	30.03	35.38	1.93	2.82	0.16	0.40	27.43	0.03	98.40	1.003	0.889	0.076	0.079	0.005	0.020	0.981	0.002	3.061
HLY0102/D46	HLY0102/D46-39A	titanite	https://doi.org/10.58052/IEGAK000H	30.53	33.43	3.13	1.77	0.06	0.05	28.51	0.02	97.98	1.017	0.838	0.123	0.049	0.002	0.002	1.018	0.001	3.065
HLY0102/D46	HLY0102/D46-39B	titanite	https://doi.org/10.58052/IEGAK000H	28.48	37.62	1.26	1.89	0.28	0.25	27.26	0.02	98.05	0.954	0.948	0.050	0.053	0.008	0.012	0.978	0.001	3.034
HLY0102/D46	HLY0102/D46-39B	titanite	https://doi.org/10.58052/IEGAK000H	29.33	39.22	1.46	0.86	0.05	0.05	27.79	0.01	99.49	0.962	0.968	0.056	0.024	0.001	0.002	0.977	0.001	3.012
HLY0102/D46	HLY0102/D46-39B	titanite	https://doi.org/10.58052/IEGAK000H	30.29	37.38	0.85	0.83	0.03		28.91	0.04	98.64	1.005	0.933	0.033	0.023	0.001	0.000	1.028	0.003	3.034
HLY0102/D46	HLY0102/D46-39B	titanite	https://doi.org/10.58052/IEGAK000H	30.02	37.63	1.30	0.60	0.03	0.06	28.79		98.81	0.993	0.936	0.051	0.017	0.001	0.003	1.020	0.000	3.031
HLY0102/D56	HLY0102/D56-79	titanite	https://doi.org/10.58052/IEGAK000E	30.39	35.16	1.55	1.78	0.06	0.06	28.07		97.44	1.020	0.888	0.061	0.050	0.002	0.003	1.010	0.000	3.045
HLY0102/D56	HLY0102/D56-79	titanite	https://doi.org/10.58052/IEGAK000E	30.28	33.98	3.51	1.70	0.15	0.02	28.56	0.05	98.68	1.003	0.847	0.137	0.047	0.004	0.001	1.013	0.003	3.067
HLY0102/D56	HLY0102/D56-79	titanite	https://doi.org/10.58052/IEGAK000E	29.40	35.79	3.54	1.86	0.03	0.02	27.80	0.02	98.73	0.974	0.892	0.138	0.052	0.001	0.001	0.987	0.001	3.054
HLY0102/D46	HLY0102/D46-88	rutile	https://doi.org/10.58052/IEGAK000J	0.18	98.70	0.10	0.24	0.01	0.02	0.02	0.05	99.32	0.002	0.994	0.002	0.003	0.000	0.000	0.000	0.001	1.003
HLY0102/D46	HLY0102/D46-88	rutile	https://doi.org/10.58052/IEGAK000J	0.25	97.59	0.11	0.27	0.03		0.04		98.32	0.003	0.993	0.002	0.003	0.000	0.000	0.001	0.000	1.002