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Bloomer, Sherman H (1994): (Table 1) Chemical composition of segregations and groundmass seperates of ODP Leg 135 samples [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.793499, Supplement to: Bloomer, SH (1994): Origin of segregation vesicles in volcanic rocks from the Lau Basin, Leg 135. In: Hawkins, J; Parson, L; Allan, J; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 135, 615-623, https://doi.org/10.2973/odp.proc.sr.135.127.1994

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Abstract:
Concentrations of dark-colored, highly vesicular, quench-textured mesostasis occur commonly in volcanic rocks drilled in the Lau Basin during Leg 135. These segregations occur as veins, patches, and vesicle linings in rocks with 49%-54% SiO2. The segregations are depleted in Mg, Ca, Al, Sc, Ni, and Cr and enriched in Ti, Ba, Y, and Zr compared to the groundmass with which they occur. Many of the segregations are unusually enriched in copper. The elemental variations show that the segregations are residual liquids produced by 12%-55% crystallization of plagioclase and clinopyroxene, with minor olivine, opaques, or orthopyroxene from the groundmass melt. The liquids forming the segregations are mobilized and emplaced in earlier formed vesicles during the rapid crystallization of the groundmass. The dominant process in this mobilization and emplacement is volatile exsolution from crystallizing melts constrained by a rigid crystalline framework. This exsolution produces significant overpressures within the late-stage melts; the overpressure drives the residual melts through the walls of the older vesicles, along planes of weakness, and into voids. This mechanism is consistent with the occurrence of bimodal vesicle populations in many of the host lavas.
Project(s):
Coverage:
Median Latitude: -19.480000 * Median Longitude: -177.110000 * South-bound Latitude: -20.709000 * West-bound Longitude: -177.862000 * North-bound Latitude: -18.501000 * East-bound Longitude: -176.500000
Date/Time Start: 1990-12-23T20:39:00 * Date/Time End: 1991-01-24T00:40:00
Minimum Elevation: -2917.0 m * Maximum Elevation: -2469.0 m
Event(s):
135-834B  * Latitude: -18.568000 * Longitude: -177.862000 * Date/Time Start: 1990-12-23T20:39:00 * Date/Time End: 1990-12-31T08:40:00 * Elevation: -2703.0 m * Penetration: 435.3 m * Recovery: 105.44 m * Location: South Pacific Ocean * Campaign: Leg135 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 59 cores; 375.5 m cored; 0 m drilled; 28.1 % recovery
135-835B  * Latitude: -18.501000 * Longitude: -177.303000 * Date/Time: 1991-01-02T08:30:00 * Elevation: -2917.0 m * Penetration: 183 m * Recovery: 8.86 m * Location: South Pacific Ocean * Campaign: Leg135 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 8 cores; 49.8 m cored; 0 m drilled; 17.8 % recovery
135-836B  * Latitude: -20.142000 * Longitude: -176.500000 * Date/Time Start: 1991-01-07T19:40:00 * Date/Time End: 1991-01-09T02:10:00 * Elevation: -2469.0 m * Penetration: 58.3 m * Recovery: 17 m * Location: South Pacific Ocean * Campaign: Leg135 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 9 cores; 44.8 m cored; 0 m drilled; 37.9 % recovery
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
Event labelEvent
Latitude of eventLatitude
Longitude of eventLongitude
Elevation of eventElevationm
Sample code/labelSample labelBloomer, Sherman HDSDP/ODP/IODP sample designation
Lithologic unit/sequenceUnitBloomer, Sherman H
Sample commentSample commentBloomer, Sherman Hfill = segregation, matrix = groundmass matrix
TypeTypeBloomer, Sherman H
MassMassgBloomer, Sherman Hof filling, #1
10 MassMassgBloomer, Sherman Hof filling, #2
11 Silicon dioxideSiO2%Bloomer, Sherman H
12 Titanium dioxideTiO2%Bloomer, Sherman H
13 Aluminium oxideAl2O3%Bloomer, Sherman H
14 Iron oxide, Fe2O3Fe2O3%Bloomer, Sherman H
15 Manganese oxideMnO%Bloomer, Sherman H
16 Magnesium oxideMgO%Bloomer, Sherman H
17 Calcium oxideCaO%Bloomer, Sherman H
18 Sodium oxideNa2O%Bloomer, Sherman H
19 Potassium oxideK2O%Bloomer, Sherman H
20 Phosphorus pentoxideP2O5%Bloomer, Sherman H
21 Pseudonodosaria symmetricaP. symmetrica%Bloomer, Sherman H
22 PhosphorusPmg/kgBloomer, Sherman H
23 ZincZnmg/kgBloomer, Sherman H
24 NickelNimg/kgBloomer, Sherman H
25 ChromiumCrmg/kgBloomer, Sherman H
26 VanadiumVmg/kgBloomer, Sherman H
27 CopperCumg/kgBloomer, Sherman H
28 ZirconiumZrmg/kgBloomer, Sherman H
29 ScandiumScmg/kgBloomer, Sherman H
30 YttriumYmg/kgBloomer, Sherman H
31 StrontiumSrmg/kgBloomer, Sherman H
32 BariumBamg/kgBloomer, Sherman H
33 Titanium/Zirconium ratioTi/ZrBloomer, Sherman H
34 Yttrium/Zirconium ratioY/ZrBloomer, Sherman H
35 Barium/Zirconium ratioBa/ZrBloomer, Sherman H
36 OlivineOl%Bloomer, Sherman Hphenocrysts, <0.1 = trace
37 PlagioclasePl%Bloomer, Sherman Hphenocrysts
38 ClinopyroxeneCpx%Bloomer, Sherman Hphenocrysts
39 OrthopyroxeneOpx%Bloomer, Sherman Hphenocrysts
40 VesicleVesicle%Bloomer, Sherman H
41 PlagioclasePl%Bloomer, Sherman Hmatrix
42 ClinopyroxeneCpx%Bloomer, Sherman Hmatrix
43 OlivineOl%Bloomer, Sherman Hmatrix
44 Opaque mineralsOpaque%Bloomer, Sherman Hmatrix
45 OrthopyroxeneOpx%Bloomer, Sherman Hmatrix
46 MesostasisMesostasis%Bloomer, Sherman Hmatrix
47 PlagioclasePl%Bloomer, Sherman Hlast-squares model
48 OlivineOl%Bloomer, Sherman Hlast-squares model
49 OxidesOxides%Bloomer, Sherman Hlast-squares model
50 ClinopyroxeneCpx%Bloomer, Sherman Hlast-squares model
51 OrthopyroxeneOpx%Bloomer, Sherman Hlast-squares model
52 Liquid fractionLiq%Bloomer, Sherman H
53 SumSum#Bloomer, Sherman Hsum R**2
Size:
926 data points

Data

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


Event

Latitude

Longitude

Elevation [m]

Sample label

Unit

Sample comment
(fill = segregation, matrix = ...)

Type

Mass [g]
(of filling, #1)
10 
Mass [g]
(of filling, #2)
11 
SiO2 [%]
12 
TiO2 [%]
13 
Al2O3 [%]
14 
Fe2O3 [%]
15 
MnO [%]
16 
MgO [%]
17 
CaO [%]
18 
Na2O [%]
19 
K2O [%]
20 
P2O5 [%]
21 
P. symmetrica [%]
22 
P [mg/kg]
23 
Zn [mg/kg]
24 
Ni [mg/kg]
25 
Cr [mg/kg]
26 
V [mg/kg]
27 
Cu [mg/kg]
28 
Zr [mg/kg]
29 
Sc [mg/kg]
30 
Y [mg/kg]
31 
Sr [mg/kg]
32 
Ba [mg/kg]
33 
Ti/Zr
34 
Y/Zr
35 
Ba/Zr
36 
Ol [%]
(phenocrysts, <0.1 = trace)
37 
Pl [%]
(phenocrysts)
38 
Cpx [%]
(phenocrysts)
39 
Opx [%]
(phenocrysts)
40 
Vesicle [%]
41 
Pl [%]
(matrix)
42 
Cpx [%]
(matrix)
43 
Ol [%]
(matrix)
44 
Opaque [%]
(matrix)
45 
Opx [%]
(matrix)
46 
Mesostasis [%]
(matrix)
47 
Pl [%]
(last-squares model)
48 
Ol [%]
(last-squares model)
49 
Oxides [%]
(last-squares model)
50 
Cpx [%]
(last-squares model)
51 
Opx [%]
(last-squares model)
52 
Liq [%]
53 
Sum [#]
(sum R**2)
135-834B -18.568-177.862-2703135-834B-15R-1,39-936Matrix50.141.79015.9510.570.1736.0210.573.760.200.2899.471216884211529554123364018728880.330.220.20.60.20.025.05.91.00.60.40.065.3
135-834B-18.568-177.862-2703135-834B-15R-1,39-936FillDark patch0.218648.261.94014.4710.990.1805.069.133.660.260.2794.221199105326031758166354516735700.270.2112.11.40.005.30.081.20.020
135-834B-18.568-177.862-2703135-834B-16R-1,107-1116Matrix51.321.44016.479.520.1604.789.343.990.480.2397.73100578417625749138303720843630.260.310.20.60.20.025.05.91.00.60.40.065.3
135-834B-18.568-177.862-2703135-834B-16R-1,107-1116FillVesicle0.03000.1051.391.90014.5812.520.2104.568.574.200.480.3098.711331110403831378172324618361660.270.3520.31.40.004.10.074.10.020
135-834B-18.568-177.862-2703135-834B-16R-1,107-1116Average (4)% STD2.002.1000.902.6016.4002.001.001.107.906.0073319510355416
135-835B -18.501-177.303-2917135-835B-5R-1,44-481Matrix49.820.86016.609.380.1607.2212.282.210.180.1298.83520757521227280424124141281230.570.671.21.70.90.018.220.213.90.30.90.042.7
135-835B-18.501-177.303-2917135-835B-5R-1,44-481FillVein0.115550.681.16015.431248.000.2006.3310.68250.000.260.1699.886901055066320118563630144361240.540.6417.72.00.009.80.070.60.001
135-835B-18.501-177.303-2917135-835B-5R-1,61-651Matrix49.140.91016.779.860.1607.511250.00220.000.200.1199.34481846720626276383823135281430.610.741.21.70.90.018.220.213.90.30.90.042.7
135-835B-18.501-177.303-2917135-835B-5R-1,61-651FillVesicle0.084148.461.12014.9512.770.2126.4310.272.640.3497.191155777304131553727134441220.490.8017.42.20.009.90.070.50.010
135-836B -20.142-176.500-2469135-836B-7R-2,43-505Matrix51.601.10015.6412.060.2005.4210.402.400.260.0799.14274942834383103514026148451310.500.89<0.13.11.00.035.72.42.80.03.20.051.6
135-836B-20.142-176.500-2469135-836B-7R-2,43-505FillDark patch0.022550.911.17014.101295.000.2205.759.50245.000.250.1397.435761004721434141594430146651190.511.109.30.00.052.40.088.40.013
135-839B -20.709-176.775-2629135-839B-13R-1,8-141Matrix53.480.65014.839.600.1507.9411.001.750.240.1099.734146911753229789264217153521530.672.040.80.00.60.018.330.020.02.61.21.325.2
135-839B-20.709-176.775-2629135-839B-13R-1,8-141FillDark patch0.259956.721.21014.5212.750.1803.858.762.370.490.19101.048391004024459155493830191911480.611.8627.99.50.0014.50.049.51.410
135-839B-20.709-176.775-2629135-839B-13R-1,71-761Matrix52.040.66515.1410.060.1608.4811.361.600.260.1099.8644775125435299137294217148621400.582.160.80.00.60.018.330.020.02.61.21.325.2
135-839B-20.709-176.775-2629135-839B-13R-1,71-761FillDark patch0.00900.0456.381.33013.3812.160.173262.006.70260.000.620.3396.30142211658303373347333462022081100.632.8725.412.20.0017.60.045.00.010
135-839B-20.709-176.775-2629135-839B-13R-1,71-761Average (2) %STD1.001.9000.303.701.70011.601.0010.9015.206.1063230161226008
135-839B-20.709-176.775-2629135-839B-35R-1,18-249Matrix53.240.94015.5811.410.1904.759.262.140.4998.001012437375155414124186911370.572.220.09.70.60.211.018.47.80.01.20.950.8
135-839B-20.709-176.775-2629135-839B-35R-1,18-249FillDark patch0.033153.421.17013.671173.000.2003.558.21243.000.6596.03123264652365643311941251250.552.2311.30.00.001.74.682.50.020
135-839B-20.709-176.775-2629135-839B-41R-1,0-59Matrix54.300.96015.3611.610.1904.549.06252.000.460.1699.15679971718402794542252291071290.56239.000.03.50.00.223.817.211.70.00.40.143.1
135-839B-20.709-176.775-2629135-839B-41R-1,0-59FillVein0.152155.521.30013.9914.060.2203.458.302.870.630.21100.559181171655021106041342241271300.572.1215.00.00.002.54.978.00.070
135-839B-20.709-176.775-2629135-839B-20R-1,8-143Matrix with olivine49.360.54012.229.820.16014.8910.501.400.2699.1570310103422670293913132461120.451.595.60.01.30.022.217.312.74.80.40.035.8
135-839B-20.709-176.775-2629135-839B-20R-1,8-143Matrix48.550.54012.359.290.16012.9910.611.530.270.0896.3736667273108824373274015143491200.561.81
135-839B-20.709-176.775-2629135-839B-20R-1,8-143FillVesicle0.037051.190.76015.3010.620.1806.3710.142.110.3797.049580115272153363018187851270.502.369.414.90.0015.70.060.00.003
135-839B-20.709-176.775-2629135-839B-23R-1,46-503Matrix with olivine50.130.60013.419.750.17011.5211.491.580.3098.9570174195524191294015146401240.521.385.60.01.30.022.217.312.74.80.40.035.8
135-839B-20.709-176.775-2629135-839B-23R-1,46-503Matrix53.100.66013.999.540.1669.3611.671.080.320.1099.98428671341658274109324418169851240.562.66
135-839B-20.709-176.775-2629135-839B-23R-1,46-503FillVesicle0.016551.970.81016.7210.990.1906.5410.112.310.35100.00100811412931849232225122520.231.310.02.20.0017.20.081.10.840