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Choi, Sarang (2026): Major element and chlorine compositions of amphibole in Onnuri diabase [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.989440 (DOI registration in progress), In: Choi, S (2026): Geochemical and Microanalytical Dataset for Mineral, Fluid Inclusion, and Whole-Rock Compositions from the Onnuri Oceanic Core Complex (Central Indian Ridge) [dataset bundled publication]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.989437 (DOI registration in progress)

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Published: 2026-02-09

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Keyword(s):
Chlorine; Fluid inclusion; Hornfels; Hydrothermal circulation; Magma emplacement depth
Coverage:
Median Latitude: -11.424229 * Median Longitude: 66.428143 * South-bound Latitude: -11.479252 * West-bound Longitude: 66.376697 * North-bound Latitude: -11.400174 * East-bound Longitude: 66.439969
Date/Time Start: 2021-10-31T16:39:44 * Date/Time End: 2022-06-12T08:00:00
Minimum ELEVATION: -3250 m a.s.l. * Maximum ELEVATION: -2310 m a.s.l.
Event(s):
RD2101  * Latitude Start: -11.433683 * Longitude Start: 66.376697 * Latitude End: -11.432112 * Longitude End: 66.379173 * Date/Time: 2021-10-31T16:39:44 * Elevation Start: -2952.0 m * Elevation End: -3236.0 m * Campaign: INVENT2021 * Basis: Isabu * Method/Device: Dredge (DRG)
ROV2197  * Latitude: -11.465800 * Longitude: 66.427810 * Date/Time: 2022-06-12T08:00:00 * Elevation: -2680.0 m * Campaign: INVENT22 * Basis: Isabu * Method/Device: Remote operated vehicle (ROV)
RVIR2104  * Latitude: -11.402740 * Longitude: 66.435580 * Date/Time: 2021-11-04T04:45:07 * Elevation: -2504.0 m * Campaign: INVENT2021 * Basis: Isabu * Method/Device: Remote operated vehicle (ROV)
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
Event labelEventChoi, Sarang
Lithology/composition/faciesLithologyChoi, Sarang
Sample code/labelSample labelChoi, Sarang
LATITUDELatitudeChoi, SarangGeocode
LONGITUDELongitudeChoi, SarangGeocode
ELEVATIONElevationm a.s.l.Choi, SarangGeocode
Point IDPoint IDChoi, SarangElectron Probe Microanalysis (EPMA)Point number for EPMA analysis
Color descriptionColor descChoi, Sarang
Silicon dioxideSiO2%Choi, SarangElectron Probe Microanalysis (EPMA)wt. %
10 Titanium dioxideTiO2%Choi, SarangElectron Probe Microanalysis (EPMA)wt. %
11 Aluminium oxideAl2O3%Choi, SarangElectron Probe Microanalysis (EPMA)wt. %
12 Chromium(III) oxideCr2O3%Choi, SarangElectron Probe Microanalysis (EPMA)wt. %
13 Iron oxide, FeOFeO%Choi, SarangElectron Probe Microanalysis (EPMA)wt. %
14 Manganese oxideMnO%Choi, SarangElectron Probe Microanalysis (EPMA)wt. %
15 Magnesium oxideMgO%Choi, SarangElectron Probe Microanalysis (EPMA)wt. %
16 Calcium oxideCaO%Choi, SarangElectron Probe Microanalysis (EPMA)wt. %
17 Sodium oxideNa2O%Choi, SarangElectron Probe Microanalysis (EPMA)wt. %
18 Potassium oxideK2O%Choi, SarangElectron Probe Microanalysis (EPMA)wt. %
19 ChlorineCl%Choi, SarangElectron Probe Microanalysis (EPMA)wt. %
20 TotalTotal%Choi, SarangElectron Probe Microanalysis (EPMA)wt. %
21 Chlorine, limit of detectionCl LODmg/kgChoi, SarangElectron Probe Microanalysis (EPMA)
22 Magnesium numberMg#Choi, SarangElectron Probe Microanalysis (EPMA)Mg# = (Mg/[Mg+Fetotal])
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
1494 data points

Data

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


Event

Lithology

Sample label

Latitude

Longitude

Elevation [m a.s.l.]

Point ID

Color desc

SiO2 [%]
10 
TiO2 [%]
11 
Al2O3 [%]
12 
Cr2O3 [%]
13 
FeO [%]
14 
MnO [%]
15 
MgO [%]
16 
CaO [%]
17 
Na2O [%]
18 
K2O [%]
19 
Cl [%]
20 
Total [%]
21 
Cl LOD [mg/kg]
22 
Mg#
RVIR2104 Hornfelsic diabaseRVIR2104-01-11.400174066.4399686-2947RVIR2104-01_01-Amp1-darkBrownish43.702.619.850.0913.070.2012.4611.122.440.310.00895.85210.63
RVIR2104Hornfelsic diabaseRVIR2104-01-11.400174066.4399686-2947RVIR2104-01_01-Amp2Brownish43.172.7510.110.0914.070.2112.4211.072.380.330.00696.60220.61
RVIR2104Hornfelsic diabaseRVIR2104-01-11.400174066.4399686-2947RVIR2104-01_01-Amp3Brownish43.522.659.980.1014.120.2112.3510.962.560.300.01296.74210.61
RVIR2104Hornfelsic diabaseRVIR2104-01-11.400174066.4399686-2947RVIR2104-01_11-Amp2Brownish43.082.889.890.1616.200.2411.3810.962.510.340.00897.64210.56
RVIR2104Hornfelsic diabaseRVIR2104-01-11.400174066.4399686-2947RVIR2104-01_01-Amp1-brightBrownish43.252.9510.060.1314.440.2212.4910.862.460.290.00497.15210.61
RVIR2104Hornfelsic diabaseRVIR2104-01-11.400174066.4399686-2947RVIR2104-01_05-Amp1Brownish42.552.929.790.1117.010.2310.9510.642.540.300.01197.05220.53
RVIR2104Hornfelsic diabaseRVIR2104-01-11.400174066.4399686-2947RVIR2104-01_06-Amp1-darkBrownish43.422.479.530.0915.610.2411.8810.712.530.300.01196.78210.58
RVIR2104Hornfelsic diabaseRVIR2104-01-11.400174066.4399686-2947RVIR2104-01_06-Amp1-brightBrownish42.712.6610.060.0816.410.2211.4610.832.490.310.01197.24220.55
RVIR2104Hornfelsic diabaseRVIR2104-01-11.400174066.4399686-2947RVIR2104-01_07-Amp1Brownish42.572.7610.120.2216.600.2211.2610.692.550.310.01197.30220.55
RVIR2104Hornfelsic diabaseRVIR2104-01-11.400174066.4399686-2947RVIR2104-01_08-Amp1Brownish42.962.9410.070.1315.270.2411.8510.792.510.290.00797.05220.58
RVIR2104Hornfelsic diabaseRVIR2104-01-11.400174066.4399686-2947RVIR2104-01_08-Amp2Brownish43.272.569.840.1015.260.2312.2910.902.500.280.01097.23220.59
RVIR2104Hornfelsic diabaseRVIR2104-01-11.400174066.4399686-2947RVIR2104-01_11-Amp1Brownish43.572.529.570.1115.900.2911.6610.752.490.300.00597.16220.57
RVIR2104Hornfelsic diabaseRVIR2104-01-11.400174066.4399686-2947RVIR2104-01-8-amp2brightBrownish43.152.709.170.0714.870.2112.7010.692.420.240.01196.22220.60
RVIR2104Hornfelsic diabaseRVIR2104-17-11.402842466.4355211-2516RVIR2104-17-4-Amp1Greenish51.190.113.640.0414.160.4315.0510.510.760.010.02295.90300.65
RVIR2104Hornfelsic diabaseRVIR2104-17-11.402842466.4355211-2516RVIR2104-17-4-Amp3Brownish43.082.8110.430.1511.800.1913.4911.072.690.260.02395.97300.67
RVIR2104Hornfelsic diabaseRVIR2104-17-11.402842466.4355211-2516RVIR2104-17-4-Amp4Brownish43.442.6910.050.1811.650.2013.7011.122.620.250.01995.90290.68
RVIR2104Hornfelsic diabaseRVIR2104-17-11.402842466.4355211-2516RVIR2104-17-6-Amp1Greenish55.430.190.870.036.640.1819.8612.520.320.050.01296.08290.84
RVIR2104Hornfelsic diabaseRVIR2104-17-11.402842466.4355211-2516RVIR2104-17-6-Amp3Brownish42.322.9310.580.0910.930.0913.4411.022.720.310.01894.44290.69
RVIR2104Hornfelsic diabaseRVIR2104-18-11.402855966.4352916-2497RVIR2104-18_2-Amp1Brownish43.512.848.740.0518.070.2510.7010.342.410.250.01597.15220.51
RVIR2104Hornfelsic diabaseRVIR2104-18-11.402855966.4352916-2497RVIR2104-18_2-Amp2Brownish42.242.859.810.0517.830.2810.2710.652.440.300.01596.72220.51
RVIR2104Hornfelsic diabaseRVIR2104-18-11.402855966.4352916-2497RVIR2104-18_4-Amp1Brownish42.472.989.580.0518.750.2510.2210.412.460.280.01797.44220.49
RVIR2104Hornfelsic diabaseRVIR2104-18-11.402855966.4352916-2497RVIR2104-18_5-Amp1Brownish42.572.689.580.0418.650.2510.0910.572.560.260.01097.25210.49
RVIR2104Hornfelsic diabaseRVIR2104-18-11.402855966.4352916-2497RVIR2104-18_6-Amp2Brownish42.772.919.550.0918.890.2610.2210.522.590.260.01698.05220.49
RVIR2104Hornfelsic diabaseRVIR2104-18-11.402855966.4352916-2497RVIR2104-18_7-Amp1Brownish42.462.939.520.0818.450.2510.1310.432.610.260.01597.13220.49
RVIR2104Hornfelsic diabaseRVIR2104-18-11.402855966.4352916-2497RVIR2104-18_7-Amp2Brownish42.712.999.350.1218.720.2310.3210.392.610.260.01497.69220.50
RVIR2104Hornfelsic diabaseRVIR2104-18-11.402855966.4352916-2497RVIR2104-18_1-Amp1Brownish43.622.0710.320.1012.970.2313.6611.042.710.240.00696.97210.65
RVIR2104Hornfelsic diabaseRVIR2104-18-11.402855966.4352916-2497RVIR2104-18_1-Amp2Brownish43.232.3210.870.0712.890.1713.4311.202.740.250.00797.17210.65
RVIR2104Hornfelsic diabaseRVIR2104-18-11.402855966.4352916-2497RVIR2104-18_5-Amp2Brownish42.052.769.560.0618.380.3110.0010.592.570.260.01496.53220.49
RVIR2104Hornfelsic diabaseRVIR2104-26-11.403709766.4340539-2310RVIR2104-26-1-Amp7Greenish49.220.444.880.0016.160.2512.2311.350.860.120.05395.51290.57
RVIR2104Hornfelsic diabaseRVIR2104-26-11.403709766.4340539-2310RVIR2104-26-1-Amp8Greenish48.900.255.510.0116.590.3412.5210.401.030.060.02695.61310.57
RVIR2104Hornfelsic diabaseRVIR2104-26-11.403709766.4340539-2310RVIR2104-26-1-Amp9Greenish50.340.223.670.0116.980.3512.5311.260.630.030.01296.01300.57
RVIR2104Hornfelsic diabaseRVIR2104-26-11.403709766.4340539-2310RVIR2104-26-2-Amp7Greenish49.890.174.020.0117.790.4212.999.570.910.060.02295.83280.57
RVIR2104Hornfelsic diabaseRVIR2104-26-11.403709766.4340539-2310RVIR2104-26-3-Amp1Greenish48.470.435.120.0117.450.2911.9710.800.960.170.06695.67320.55
RVIR2104Hornfelsic diabaseRVIR2104-26-11.403709766.4340539-2310RVIR2104-26-4-Amp1Greenish54.560.190.540.0112.410.3116.4811.150.270.120.05096.04300.70
RVIR2104Hornfelsic diabaseRVIR2104-26-11.403709766.4340539-2310RVIR2104-26-4-Amp2Greenish52.830.081.830.0214.280.2614.6011.520.320.030.01995.75300.65
RVIR2104Hornfelsic diabaseRVIR2104-26-11.403709766.4340539-2310RVIR2104-26-4-Amp3Brownish43.082.469.200.0616.400.2210.9610.512.420.290.01295.60310.54
RVIR2104Hornfelsic diabaseRVIR2104-26-11.403709766.4340539-2310RVIR2104-26-4-Amp4Brownish43.052.569.030.0615.560.2510.9110.592.360.320.02294.69290.56
RVIR2104Hornfelsic diabaseRVIR2104-26-11.403709766.4340539-2310RVIR2104-26-5-Amp1Greenish53.420.231.360.0312.900.2715.9211.620.320.040.00796.11320.69
RVIR2104Hornfelsic diabaseRVIR2104-26-11.403709766.4340539-2310RVIR2104-26-5-Amp2Greenish51.730.102.140.0016.380.3313.5610.480.560.080.06395.36300.60
RVIR2104Hornfelsic diabaseRVIR2104-26-11.403709766.4340539-2310RVIR2104-26-5-Amp3Brownish42.622.829.330.0317.070.2510.6810.372.540.260.01995.98300.53
RVIR2104Hornfelsic diabaseRVIR2104-26-11.403709766.4340539-2310RVIR2104-26-5-Amp4Brownish42.842.679.000.0116.590.2010.9310.412.410.250.01695.31300.54
RVIR2104Hornfelsic diabaseRVIR2104-26-11.403709766.4340539-2310RVIR2104-26-6-Amp3Brownish42.822.728.840.0316.400.2210.9810.302.480.250.01495.04290.54
RVIR2104Hornfelsic diabaseRVIR2104-26-11.403709766.4340539-2310RVIR2104-26-6-Amp4Brownish42.552.849.110.0916.510.2410.7910.402.500.270.01595.31300.54
RVIR2104Hornfelsic diabaseRVIR2104-26-11.403709766.4340539-2310RVIR2104-26-6-Amp5Greenish49.970.162.190.0320.230.3710.3911.750.390.030.01095.51310.48
RVIR2104Hornfelsic diabaseRVIR2104-26-11.403709766.4340539-2310RVIR2104-26-6-Amp6Brownish42.542.719.270.0416.160.2410.7910.462.460.290.01594.95300.54
RVIR2104Hornfelsic diabaseRVIR2104-26-11.403709766.4340539-2310RVIR2104-26-7-Amp1Greenish50.590.123.480.0013.850.2314.3711.090.700.040.00994.48300.65
RVIR2104Hornfelsic diabaseRVIR2104-26-11.403709766.4340539-2310RVIR2104-26-7-Amp2Brownish42.142.829.460.0416.840.1610.5310.482.540.280.01895.28300.53
RVIR2104Hornfelsic diabaseRVIR2104-26-11.403709766.4340539-2310RVIR2104-26-8-Amp2Brownish42.272.809.360.0116.890.1710.7210.432.540.280.01795.46300.53
RVIR2104Hornfelsic diabaseRVIR2104-26-11.403709766.4340539-2310RVIR2104-26-10-Amp1Greenish50.070.203.130.0019.120.4311.1310.880.640.040.01995.64290.51
RVIR2104Hornfelsic diabaseRVIR2104-26-11.403709766.4340539-2310RVIR2104-26-10-Amp2Brownish42.592.769.370.0216.760.1910.9110.402.510.270.01795.78290.54
RVIR2104Hornfelsic diabaseRVIR2104-26-11.403709766.4340539-2310RVIR2104-26-10-Amp3Greenish50.330.423.010.0016.830.2012.2411.990.620.070.03495.72300.56
RVIR2104Hornfelsic diabaseRVIR2104-26-11.403709766.4340539-2310RVIR2104-26-10-Amp4Brownish42.352.969.690.0116.780.2310.3110.512.500.280.01795.63300.52
ROV2197 Hornfelsic diabaseROV22-03-11.479045066.4349391-3239ROV22-03_2-Amp1Brownish42.422.9111.000.1212.690.2112.7311.092.850.380.04596.39220.64
ROV2197Hornfelsic diabaseROV22-03-11.479045066.4349391-3239ROV22-03_2-Amp2Brownish42.193.3010.660.0712.820.2112.6711.182.900.430.04396.44210.64
ROV2197Hornfelsic diabaseROV22-03-11.479045066.4349391-3239ROV22-03_4-Amp1Brownish42.543.7910.980.1311.530.1713.4211.192.810.480.04897.04210.67
ROV2197Hornfelsic diabaseROV22-03-11.479045066.4349391-3239ROV22-03_4-Amp2Brownish42.723.4210.360.1711.600.2113.2711.472.830.470.03896.52220.67
ROV2197Hornfelsic diabaseROV22-12-11.473078166.4317168-2971ROV22-12-3-Amp1Brownish44.092.9010.370.6010.590.1914.5411.272.710.310.01197.57300.71
ROV2197Hornfelsic diabaseROV22-12-11.473078166.4317168-2971ROV22-12-3-Amp2Brownish43.833.0610.720.1110.140.1414.6011.342.720.340.01897.00300.72
ROV2197Hornfelsic diabaseROV22-12-11.473078166.4317168-2971ROV22-12-5-Amp1Brownish43.453.5211.030.4510.620.1314.3411.222.820.330.02297.91300.71
ROV2197Hornfelsic diabaseROV22-12-11.473078166.4317168-2971ROV22-12-5-Amp2Brownish42.853.6711.270.4210.620.1514.1811.262.830.330.02897.58300.70
ROV2197Hornfelsic diabaseROV22-12-11.473078166.4317168-2971ROV22-12-6-Amp1Brownish43.633.3010.430.5310.030.1314.3610.972.770.260.00996.41310.72
ROV2197Hornfelsic diabaseROV22-21-11.462407866.4257741-2592ROV22-21_1-Amp1Brownish43.442.559.610.1015.030.2012.3511.032.690.190.00597.20220.59
ROV2197Hornfelsic diabaseROV22-21-11.462407866.4257741-2592ROV22-21_1-Amp2Brownish43.122.649.520.0914.710.2212.4110.752.660.180.00696.29210.60
ROV2197Hornfelsic diabaseROV22-21-11.462407866.4257741-2592ROV22-21_2-Amp1Brownish42.443.039.900.1015.830.2411.7910.662.850.180.00997.03210.57
ROV2197Hornfelsic diabaseROV22-21-11.462407866.4257741-2592ROV22-21_2-Amp2Brownish42.402.9210.100.0815.540.2511.8610.632.830.200.00696.81220.58
ROV2197Hornfelsic diabaseROV22-23-11.461583866.4253988-2542ROV22-23_2-Amp2Brownish43.792.378.910.0415.270.2611.6511.182.660.370.03096.51210.58
ROV2197Hornfelsic diabaseROV22-23-11.461583866.4253988-2542ROV22-23_2-Amp1Brownish45.541.857.290.0415.320.2712.7511.052.240.380.01896.73220.60
ROV2197Hornfelsic diabaseROV22-23-11.461583866.4253988-2542ROV22-23_5-Amp1Brownish42.443.089.550.1115.870.2811.1411.002.840.390.03596.70220.56
ROV2197Hornfelsic diabaseROV22-23-11.461583866.4253988-2542ROV22-23_5-Amp2Brownish43.742.178.690.1015.500.2611.8711.282.550.420.03896.58220.58
RD2101 DiabaseRD2101-01-11.433683066.3766970-3236RD2101-01-1-Amp1Greenish48.890.364.950.0315.770.2512.9310.941.200.060.02195.37290.59
RD2101DiabaseRD2101-01-11.433683066.3766970-3236RD2101-01-1-Amp2Greenish50.650.513.560.0014.920.2313.6011.550.810.080.02395.90310.62
RD2101DiabaseRD2101-01-11.433683066.3766970-3236RD2101-01-1-Amp3Greenish48.740.645.020.0014.760.2413.0911.531.120.110.02995.25300.61
RD2101DiabaseRD2101-01-11.433683066.3766970-3236RD2101-01-1-Amp4Greenish50.480.573.310.0115.100.3413.4711.570.800.050.02895.69300.61
RD2101DiabaseRD2101-01-11.433683066.3766970-3236RD2101-01-1-Amp5Greenish48.990.585.130.0815.030.2413.1911.331.160.090.03095.82300.61
RD2101DiabaseRD2101-01-11.433683066.3766970-3236RD2101-01-5-Amp1Greenish50.000.503.900.0215.030.2613.4411.430.970.080.01995.62310.61
RD2101DiabaseRD2101-01-11.433683066.3766970-3236RD2101-01-5-Amp2Greenish48.650.635.120.0215.440.2413.2711.331.330.100.02796.12300.61
RD2101DiabaseRD2101-01-11.433683066.3766970-3236RD2101-01-5-Amp3Greenish51.760.222.250.0214.980.3014.2611.840.590.100.05096.31290.63
RD2101DiabaseRD2101-01-11.433683066.3766970-3236RD2101-01-5-Amp4Greenish47.900.604.980.0216.600.2512.0611.711.210.270.04495.59280.56
ROV2197DiabaseROV22-01-11.479252366.4350254-3250ROV22-01_1-Amp1Greenish52.750.391.750.0215.320.2715.0610.440.080.380.01696.46210.64
ROV2197DiabaseROV22-01-11.479252366.4350254-3250ROV22-01_2-Amp1Greenish51.890.702.870.0613.330.2515.8611.890.110.550.01497.52220.68
ROV2197DiabaseROV22-01-11.479252366.4350254-3250ROV22-01_2-Amp2Greenish49.340.693.030.0023.460.4110.428.970.170.560.05097.06220.44
ROV2197DiabaseROV22-01-11.479252366.4350254-3250ROV22-01_3-Amp1Greenish49.180.554.310.0419.200.2310.8611.780.100.590.01096.83210.50
ROV2197DiabaseROV22-01-11.479252366.4350254-3250ROV22-01_3-Amp2Greenish52.620.331.850.0614.570.2314.9312.070.060.380.01297.09200.65