Citation:

PANGAEA.972380 (DOI registration in progress)

Name: Major elemental compositions of spinel 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: 86.953333 * Median Longitude: 61.529167 * South-bound Latitude: 86.945000 * West-bound Longitude: 61.473333 * North-bound Latitude: 86.961667 * East-bound Longitude: 61.585000

Date/Time Start: 2001-09-01T21:31:00 * Date/Time End: 2001-09-01T22:49:00

Minimum Elevation: -3474.0 m * Maximum Elevation: -3085.0 m

Event(s):

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

Comment:

Compositions of spinel with cations calculated on a basis of 4 O.

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	Sample code/label	Sample label		Albers, Elmar
2	International Generic Sample Number	IGSN		Albers, Elmar
3	Titanium dioxide	TiO2	%	Albers, Elmar	Electron microprobe (EMP)
4	Aluminium oxide	Al2O3	%	Albers, Elmar	Electron microprobe (EMP)
5	Chromium(III) oxide	Cr2O3	%	Albers, Elmar	Electron microprobe (EMP)
6	Iron oxide, FeO	FeO	%	Albers, Elmar	Electron microprobe (EMP)
7	Manganese oxide	MnO	%	Albers, Elmar	Electron microprobe (EMP)
8	Magnesium oxide	MgO	%	Albers, Elmar	Electron microprobe (EMP)
9	Total	Total	%	Albers, Elmar	Electron microprobe (EMP)
10	Titanium	Ti	# of ions	Albers, Elmar	Electron microprobe (EMP)	cations per formula unit (pfu)
11	Aluminium	Al	# of ions	Albers, Elmar	Electron microprobe (EMP)	cations per formula unit (pfu)
12	Chromium	Cr	# of ions	Albers, Elmar	Electron microprobe (EMP)	cations per formula unit (pfu)
13	Iron 2+ and 3+	Fe	# of ions	Albers, Elmar	Electron microprobe (EMP)	cations per formula unit (pfu)
14	Manganese	Mn	# of ions	Albers, Elmar	Electron microprobe (EMP)	cations per formula unit (pfu)
15	Magnesium	Mg	# of ions	Albers, Elmar	Electron microprobe (EMP)	cations per formula unit (pfu)
16	Cations, sum	Cations	# of ions	Albers, Elmar	Electron microprobe (EMP)	cations per formula unit (pfu)
17	Magnesium/(Magnesium+Iron) ratio	Mg/(Mg+Fe)		Albers, Elmar	Calculated	XMg = Mg / (Mg+Fe)
18	Chromium/(Aluminium+Chromium) ratio	Cr/(Al+Cr)		Albers, Elmar	Calculated	XCr = Cr / (Al+Cr)

License:

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

Status:

Curation Level: Enhanced curation (CurationLevelC)

Size:

198 data points

Data

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

1 Sample label	2 IGSN	3 TiO2 [%]	4 Al2O3 [%]	5 Cr2O3 [%]	6 FeO [%]	7 MnO [%]	8 MgO [%]	9 Total [%]	10 Ti [# of ions]	11 Al [# of ions]	12 Cr [# of ions]	13 Fe [# of ions]	14 Mn [# of ions]	15 Mg [# of ions]	16 Cations [# of ions]	17 Mg/(Mg+Fe)	18 Cr/(Al+Cr)
HLY0102/D56-93	https://doi.org/10.58052/IEGAK000G	0.50	35.95	30.64	16.35	0.28	16.72	100.45	0.011	1.215	0.695	0.392	0.007	0.715	3.034	0.646	0.364
HLY0102/D56-93	https://doi.org/10.58052/IEGAK000G	0.52	35.88	30.50	16.33	0.25	16.72	100.23	0.011	1.215	0.693	0.392	0.006	0.716	3.035	0.646	0.363
HLY0102/D56-93	https://doi.org/10.58052/IEGAK000G	0.54	35.87	30.64	16.12	0.29	16.76	100.23	0.012	1.214	0.696	0.387	0.007	0.718	3.033	0.650	0.364
HLY0102/D56-93	https://doi.org/10.58052/IEGAK000G	0.52	35.97	30.71	16.17	0.30	16.88	100.54	0.011	1.214	0.695	0.387	0.007	0.720	3.034	0.650	0.364
HLY0102/D56-93	https://doi.org/10.58052/IEGAK000G	0.56	36.06	30.86	16.26	0.27	16.73	100.76	0.012	1.215	0.697	0.389	0.007	0.713	3.032	0.647	0.365
HLY0102/D56-93	https://doi.org/10.58052/IEGAK000G	0.53	36.04	30.82	16.18	0.31	16.70	100.58	0.011	1.216	0.697	0.387	0.008	0.713	3.032	0.648	0.364
HLY0102/D56-93	https://doi.org/10.58052/IEGAK000G	0.48	37.93	29.12	15.92	0.23	17.05	100.76	0.010	1.266	0.652	0.377	0.005	0.720	3.031	0.656	0.340
HLY0102/D56-93	https://doi.org/10.58052/IEGAK000G	0.48	37.55	29.39	16.05	0.29	16.94	100.73	0.010	1.256	0.660	0.381	0.007	0.717	3.032	0.653	0.344
HLY0102/D56-93	https://doi.org/10.58052/IEGAK000G	0.47	37.83	29.19	15.86	0.24	16.96	100.58	0.010	1.265	0.655	0.376	0.006	0.717	3.030	0.656	0.341
HLY0102/D56-93	https://doi.org/10.58052/IEGAK000G	0.47	37.93	29.52	15.84	0.28	16.97	101.03	0.010	1.263	0.659	0.374	0.007	0.715	3.029	0.657	0.343
HLY0102/D56-93	https://doi.org/10.58052/IEGAK000G	0.46	37.69	29.41	16.02	0.23	16.95	100.79	0.010	1.260	0.659	0.380	0.006	0.716	3.031	0.653	0.343