Ryoji Tanaka & Eizo Nakamura (2013) Determination of 17O-excess of terrestrial silicate/oxide minerals with respect to Vienna Standard Mean Ocean Water (VSMOW), Rapid Communications in Mass Spectrometry, 27, 285-297, doi: 10.1002/rcm.6453. < 20131009140130-121830 > pub

Map on Earth or stone. Places and analyses are shown.

  • abstract:

    RATIONALE
    Oxygen triple isotope compositions give key information for understanding physical processes during isotopic fractionation between the geo‐, hydro‐, bio‐, and atmosphere. For detailed discussion of these topics, it is necessary to determine precise 17O‐excess values of terrestrial silicate/oxide minerals with respect to Vienna Standard Mean Ocean Water (VSMOW).
    METHODS
    Water was fluorinated in an electrically heated Ni‐metal tube into which water and BrF5 were loaded for the quantitative extraction of oxygen. Silicate/oxide minerals were fluorinated by heating with a CO2 laser in an atmosphere of BrF5. The extracted oxygen was purified and isotope ratios of the oxygen triple isotope compositions were determined using a Finnigan MAT253 isotope ratio mass spectrometer.
    RESULTS
    The oxygen triple isotope compositions of meteoric water and terrestrial silicate/oxide minerals fall on statistically distinguishable fractionation lines, defined as [ln(δ17O + 1) = λln(δ18O + 1) + Δ], where λ and Δ correspond to the slope and intercept, respectively. The fractionation line for meteoric water has λ = 0.5285 ± 0.0005 and Δ = 0.03 ± 0.02‰ and for terrestrial silicate/oxide minerals has λ = 0.5270 ± 0.0005 and Δ = –0.070 ± 0.005‰, at the 95% confidence limit.
    CONCLUSIONS
    All the analyzed terrestrial silicate/oxide minerals including internationally accepted reference materials (NBS‐28, UWG‐2, and San Carlos olivine) have a negative 17O‐excess with respect to VSMOW. We propose that it is necessary to specify if the determined δ17O values of terrestrial and extraterrestrial samples are expressed as the difference from VSMOW or the terrestrial silicate mineral‐corrected value.

  • doi: 10.1002/rcm.6453
  • modified at 16 h ago
2014 04 26%2007.03.45 thumb ref-ol-fo < 20140426070528-434613 >pub
  • classification: mineral:olivine
  • physical-form: powder
  • status: (unknown)
  • description: Mogok forsterite
  • modified at 2020-04-02
Image 1970 01 07 00.36.01  0000 thumb MSG1 < 20110329163656-691-501 >pub
  • classification: mineral:garnet
  • physical-form: fraction
  • status: (unknown)
  • description: Oxygen isotope standard
  • modified at 2020-04-02
Image 1970 01 07 01.57.31  0000 thumb NBS28 < 20110329175821-759-205 >pub
  • physical-form: grain
  • status: (unknown)
  • description: NIST Quartz Isotopic Reference Material
  • modified at 2020-04-02
Image 1970 01 07 01.08.04  0000 thumb 95-QL-2M < 20110329170915-979-809 >pub
  • classification: mineral:garnet
  • physical-form: fraction
  • status: (unknown)
  • description: Standard for Oxygen Isotope; Alm47Sps1Pyr26Grs25
  • modified at 2020-04-02
Image 1970 01 07 01.55.33  0000 thumb UWG-2 < 20110329175642-609-302 >pub
  • classification: mineral:garnet
  • physical-form: grain
  • status: (unknown)
  • description: Given by J. Valley; Alm47Sps1Pyr39Grs13 [in end-member]
  • modified at 2020-04-02
Img 2654 thumb ref-ol-sc >20# < 20101202094953250.hkitagawa >pub
  • classification: mineral:olivine
  • physical-form: fraction
  • status: (unknown)
  • description: MSOL-1
  • modified at 2020-04-02
P1020160 thumb ref-sp-MSP-P1 < 20110126173127-759-566 >pub
  • classification: mineral:spinel
  • physical-form: grain
  • status: (unknown)
  • description: Fractured by WC mortar, washed with acetone and ion-exchanged water.
  • modified at 2020-04-02
Image 1970 01 06 16.37.15  0000 thumb ref-opx-klb1 < 20110329083828-391-602 >pub
  • classification: mineral:pyroxene
  • physical-form: grain
  • status: (unknown)
  • modified at 2020-04-02
P1020161 thumb ref-sp-MSP-R1 < 20110126173452-887-750 >pub
  • classification: mineral:spinel
  • physical-form: grain
  • status: (unknown)
  • description: Fractured by WC mortar, washed with acetone and ion-exchanged water.
  • modified at 2020-04-02
P1020162 thumb ref-sp-MSP-B1 < 20110126173248-019-647 >pub
  • classification: mineral:spinel
  • physical-form: grain
  • status: (unknown)
  • description: Fractured by WC mortar, washed with acetone and ion-exchanged water.
  • modified at 2020-04-02
Image 1970 01 06 16.27.00  0000 thumb ref-cpx-klb1 < 20110329082831-599-316 >pub
  • classification: mineral:pyroxene
  • physical-form: grain
  • status: (unknown)
  • modified at 2020-04-02
Image 1970 01 06 16.36.21  0000 thumb ref-sp-klb1 < 20110329083733-438-698 >pub
  • classification: mineral:spinel
  • physical-form: grain
  • status: (unknown)
  • modified at 2020-04-02
Image 1970 02 18 02.33.23  0000 thumb ref-pl-alb21245 < 20110510183305-729-671 >pub
  • classification: mineral:feldspar
  • physical-form: aliquot
  • status: (unknown)
  • modified at 2020-04-02
Image 1970 02 18 02.31.00  0000 thumb ref-pl-lab < 20110510183046-418-874 >pub
  • classification: mineral:feldspar
  • physical-form: aliquot
  • status: (unknown)
  • modified at 2020-04-02
name box-type global-id
binder of Determination of 17O-excess of terrestrial silicate/oxide minerals with respect to Vienna Standard Mean Ocean Water (VSMOW) pub container 20191220102640-924673
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oxygen isotopes, recommended pub SIRA Thermo-Fisher MAT253 3 20110329164340-405-994
oxygen isotopes, recommended pub SIRA Thermo-Fisher MAT253 3 20110329174620-268-707
oxygen isotopes, recommended pub SIRA Thermo-Fisher MAT253 3 20110329180833-925-173
major elements pub EPMA JEOL JXA-8800R 9 20131009145705-075810
major elements pub EPMA JEOL JXA-8800R 11 20131009151042-322041
Mogok fo pub EPMA JEOL JXA-8800R 8 20191220140951-622168
Mogok fo pub SIRA Thermo-Fisher MAT253 3 20191220152818-506161
MSOL-1 pub EPMA JEOL JXA-8800R 10 20191220140603-674136
MSOL-1 pub SIRA Thermo-Fisher MAT253 3 20191220152440-158100
MSOL-1_2016 pub SIRA Thermo-Fisher MAT253 2 20200327153953-043802
LF-1930 pub SIRA Thermo-Fisher MAT253 3 20110127160845-755-995
sp-MSP-P1 pub EPMA JEOL JXA-8800R 8 20191220145956-508043
opx-KLB1 pub EPMA JEOL JXA-8800R 12 20191220143738-181387
opx-KLB1 pub SIRA Thermo-Fisher MAT253 3 20191220154115-564237
pl-alb21245 pub EPMA JEOL JXA-8800R 6 20191220144938-189378
sp-MSP-R1 pub SIRA Thermo-Fisher MAT253 3 20191220155237-363313
sp-MSP-R1 pub EPMA JEOL JXA-8800R 9 20191220150341-559612
sp-MSP-B1 pub SIRA Thermo-Fisher MAT253 3 20191220155447-865821
sp-MSP-B1 pub EPMA JEOL JXA-8800R 10 20191220150911-618993
recommended pub SIRA Thermo-Fisher MAT253 3 20110329182123-912-613
cpx-KLB1 pub EPMA JEOL JXA-8800R 12 20191220142714-992666
cpx-KLB1 pub SIRA Thermo-Fisher MAT253 3 20191220153855-126784
pl-lab pub EPMA JEOL JXA-8800R 9 20191220144328-268738
sp-KLB1 pub EPMA JEOL JXA-8800R 12 20191220145346-990771
sp_KLB1 pub SIRA Thermo-Fisher MAT253 3 20191220154812-846117
dO pub SIRA Thermo-Fisher MAT253 3 20190527135440-143219
dO pub SIRA Thermo-Fisher MAT253 3 20190527141750-123587
ref_cpx_klb1 pub 33 20110615111911-316-852
XNa pub EPMA JEOL JXA-8530F 1 20190527135334-177108
XNa pub EPMA JEOL JXA-8530F 1 20190527141801-913551
recommended pub EPMA JEOL JXA-8800R 9 20110613192432-696-698
ref_cpx_klb1_O pub SIRA Thermo-Fisher MAT253 2 20181226103155-932696
name spots global-id
caption ID assembly stone
Table 4. Oxygen isotopic compositions of silicate and oxidite minerals analyzed in this study pub 20191220152011-412905 oxygen (Tanaka,2013) 14
Table 1. Major element compositions (wt.%) of silicate and oxide minerals prepared in this study pub 20191220140310-677294 major_min (Tanaka et al., 2013) 12
manual
  • name
  • Ryoji Tanaka
  • Eizo Nakamura