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Albers, Elmar; Behrendt, Nele; Diehl, Alexander; Genske, Felix; Monien, Patrick; Kasemann, Simone A; Purser, Autun; Boetius, Antje; Bach, Wolfgang (2024): Major elemental compositions of phrenite, titanite, and rutile in mafic rocks from the Langseth Ridge (Gakkel Ridge) [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.972390 (DOI registration in progress)

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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: HLY0102 * 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: HLY0102 * 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: PS101 (ARK-XXX/3) * Basis: Polarstern * 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):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1Event labelEventAlbers, Elmar
2Sample code/labelSample labelAlbers, Elmar
3PhasePhaseAlbers, Elmar
4International Generic Sample NumberIGSNAlbers, Elmar
5Silicon dioxideSiO2%Albers, ElmarElectron microprobe (EMP)
6Titanium dioxideTiO2%Albers, ElmarElectron microprobe (EMP)
7Aluminium oxideAl2O3%Albers, ElmarElectron microprobe (EMP)
8Iron oxide, FeOFeO%Albers, ElmarElectron microprobe (EMP)
9Manganese oxideMnO%Albers, ElmarElectron microprobe (EMP)
10Magnesium oxideMgO%Albers, ElmarElectron microprobe (EMP)
11Calcium oxideCaO%Albers, ElmarElectron microprobe (EMP)
12Sodium oxideNa2O%Albers, ElmarElectron microprobe (EMP)
13TotalTotal%Albers, ElmarElectron microprobe (EMP)
14SiliconSi# of ionsAlbers, ElmarElectron microprobe (EMP)cations per formula unit (pfu)
15TitaniumTi# of ionsAlbers, ElmarElectron microprobe (EMP)cations per formula unit (pfu)
16AluminiumAl# of ionsAlbers, ElmarElectron microprobe (EMP)cations per formula unit (pfu)
17Iron 2+ and 3+Fe# of ionsAlbers, ElmarElectron microprobe (EMP)cations per formula unit (pfu)
18ManganeseMn# of ionsAlbers, ElmarElectron microprobe (EMP)cations per formula unit (pfu)
19MagnesiumMg# of ionsAlbers, ElmarElectron microprobe (EMP)cations per formula unit (pfu)
20CalciumCa# of ionsAlbers, ElmarElectron microprobe (EMP)cations per formula unit (pfu)
21SodiumNa# of ionsAlbers, ElmarElectron microprobe (EMP)cations per formula unit (pfu)
22Cations, sumCations# of ionsAlbers, ElmarElectron microprobe (EMP)cations per formula unit (pfu)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
307 data points

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