Eizo Nakamura et al. (2003) Comprehensive geochemical analyses of small amounts (< 100 mg) of extraterrestrial samples for the analytical competition related to the sample return mission MUSES-C, The Institute of Space and Astronautical Science Report SP, 16, 49-101. < 20110602093007-717-706 > pub

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

  • abstract:

    We have participated in the analytical competition related to the sample-return mission, MUSES-C of the ISAS, to be launched in May 2003 and returned in summer 2007. In this competition, we have determined major and trace element abundances and isotopes (as many as possible), both for two powdered samples provided by the ISAS and for chondrules separated from Allende meteorite as an additional demonstration of our high-spatial resolution analytical capabilities for fragment samples. 100 mg of each of the competition samples, 1C and 2C, were split into two fractions of approximately 30 and 70 mg for the determinations of elemental abundances and the isotope analyses, respectively. The bulk concentrations of 55 elements in each 30 mg sample were analyzed by quadruple-type ICP-MS and sector-type ICP-MS with analytical uncertainties better than 10 percent (1 sigma). B, Pb, Li, Rb, Sr, Sm and Nd were successively separated from the remaining 70 mg of each of the samples, using a novel integrated, multi-ion exchange column chemistry approach, and then the isotopes of these elements were successfully determined by TIMS with analytical errors similar to those for analyses of terrestrial samples. The Sr, Nd, Re and Os isotopic compositions were also analyzed using the remaining aliquots of the sample solutions for trace element analyses by ICP-MS. The results obtained in this study indicate that 1C and 2C samples are probably ordinary chondrite and the Allende meteorite, respectively. However, extreme W, Ta and Nb enrichments in the 1C were probably caused by contamination during sample preparation. Furthermore, both of the samples were extensively contaminated by B from the borosilicate glass container in which the samples were delivered. Five chondrules were separated from Allende meteorite and then sliced into three pieces using a dicing saw. The center slices were used to petrographically determine the mineral phases, compositionally map these phases by SEM-EDX, and obtain quantitative major and trace element compositions (30 elements) by SEM-EDX and ion microprobe. The two outer slices, for which sample masses were less than 1 mg, were chemically treated to obtain the bulk trace elements and isotope compositions of the chondrules. For the chondrule slices, 24 trace elements and Sr and Nd isotopic compositions were determined with extremely small analytical uncertainties by ICP-MS and TIMS (for Sr and Nd, respectively). Based on the analytical experience, including this competition, we believe that all of the analyses carried out could have been completed within 50 days if we could have concentrated on this project alone during that 50-day period. In this report, we describe the analytical techniques employed for the powdered samples and the chondrules, and we present all of the results obtained during the approximately 3-month period of the analytical competition.

  • modified at 16 h ago


(a) B_procedures of Nakamura et al. (1992) on TIMS Thermo-Fisher MAT261


(a) Sr isotopes_procedures of Yoshikawa and Nakamura (1993) on TIMS Thermo-Fisher MAT261
(b) Nd isotopes_procedures of Nakamura et al. (1991, 2003) on TIMS Thermo-Fisher MAT261


(a) Pb isotopes_procedures of Kuritani and Nakamura (2002, 2003) on TIMS Thermo-Fisher MAT261


(a) PGE_procedures of Makishima et al. (2001) on TIMS Thermo-Fisher MAT262


(a) Li isotopes_procedures of Moriguti and Nakamura (1998) on TIMS Thermo-Fisher MAT261
Img 8252@58452bedef311c2498f872f thumb JB-2 < 20130416090250-887738 >pub
  • classification: volcanic:basaltic
  • physical-form: powder
  • status: (unknown)
  • description: Geological Survey of Japan silicate reference material - tholeiitic basalt from Izu-Oshima, Japan (erupted in 1950 AD); split 7, position 19
  • modified at 2020-05-11
20071212 13 thumb Allende-12 < 20071216135000.en >pub
  • classification: chondrite:carbonaceous
  • physical-form: aliquot
  • quantity (g): 0.51212
  • description: Original weight: unknown; Price: unknown; The specimen was provided by the Smithsonian Institution (Split 1, Position 23, 3529).
  • modified at 2020-05-01
20071213 1 thumb Allende-13 < 20071216135144.en >pub
  • classification: chondrite:carbonaceous
  • physical-form: aliquot
  • status: (unknown)
  • description: Original weight: unknown; Price: unknown; PML-Allende standard \#1. Calibrated for Rb-Sr, Sm-Nd by Intern2006 (Angela).
  • modified at 2020-05-01
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binder of Comprehensive geochemical analyses of small amounts (< 100 mg) of extraterrestrial samples for the analytical competition related to the sample return mission MUSES-C pub container 20191011113925-709279
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ref-gl-jb2 pub Q-ICPMS Agilent 7500cs 55 20170302124544-731488
JB-2_Cl-F pub 761 COMPACT IC 2 20190515103147-299945
JB-2 pub ICPMS Yokogawa PMS2000 22 20191008091433-571271
JB-2_FeO pub 1 20191009141755-701622
JB-2_TiO2 pub HR-ICPMS Finningan, Element 1 20191008134323-345539
JB-2_W-Sb-Mo pub ICPMS Yokogawa PMS2000 3 20191008113359-987281
JB-2_U pub ICPMS Thermo-Fisher Neptune 2 20191023140518-782251
JB-2_Hf pub MC-ICP-MS Finnigan, Neptune 2 20191023150858-360045
JB-2_Li pub ICPMS Yokogawa PMS2000 1 20191015113423-995945
JB-2_Th pub ICPMS Thermo-Fisher Neptune 2 20191023140820-456541
JB-2_Bi-Tl-In-Cd pub Q-ICPMS Agilent 7500cs 4 20191002151232-133506
JB-2_d66Zn pub ICPMS Thermo-Fisher Neptune 1 20191003102338-443368
JB-2_d56Fe pub ICPMS Thermo-Fisher Neptune 1 20191003113551-268022
JB-2_Ge-As-Se-Te pub Q-ICPMS Agilent 7500cs 4 20191004111800-764807
JB-2_Ta-Hf-Nb-Zr pub ICPMS Yokogawa PMS2000 4 20191008105612-696377
JB-2_S pub HR-ICPMS Finningan, Element 1 20191008141043-335650
JB-2_Cr-Ni-Cu-Zn pub HR-ICPMS Finningan, Element 4 20191009100320-804729
JB-2_B pub ICPMS Yokogawa PMS2000 1 20191007144129-710421
JB-2 pub MC-ICP-MS Finnigan, Neptune 1 20191219094725-536598
JB-2_S (Max, 2012) pub ICPMS Thermo-Fisher Neptune 1 20191223152828-773022
JB-2_226Ra pub MC-ICP-MS Finnigan, Neptune 1 20200131112956-636986
JB-2_Li pub TIMS Thermo-Fisher MAT261 2 20200210103937-712454
JB-2 pub ICPMS Yokogawa PMS2000 1 20200213153336-912830
JB-2 pub ICPMS Yokogawa PMS2000 2 20200213153348-280479
JB-2 pub TIMS Thermo-Fisher MAT261 1 20200213153411-590596
JB-2 pub ICPMS Yokogawa PMS2000 1 20200213153400-458802
JB-2 pub TIMS Thermo-Fisher MAT261 2 20200213153422-381614
JB-2 pub TIMS Thermo-Fisher MAT261 4 20200213153431-920662
JB-2 pub XRF PANalytical PW2400 3 20200219095011-457226
JB-2_B (Nakamura,1992) pub TIMS Thermo-Fisher MAT261 2 20200221121528-403757
Allende_B pub ICPMS Yokogawa PMS2000 1 20191007144654-469588
Allende average pub XRF PANalytical PW2400 9 20190205122616-321995
Allende average pub Shimadzu AA6200 2 20190205122856-619565
Allende_Smithsonian pub ICPMS Yokogawa PMS2000 22 20191008091438-103352
Allende_W-Sb-Mo pub ICPMS Yokogawa PMS2000 3 20191008113359-711249
Allende_Re-Os pub TIMS Thermo-Fisher MAT262 4 20191011102909-774067
Allende-12_Li pub ICPMS Yokogawa PMS2000 1 20191015113423-683939
Allende_Cr-Ni-Cu-Zn pub HR-ICPMS Finningan, Element 4 20191009100320-196967
Allende_Zr-Nb-Hf-Ta pub ICPMS Yokogawa PMS2000 4 20191008105613-887464
Allende_S (Max, 2012) pub ICPMS Thermo-Fisher Neptune 1 20191223154313-304810
Allende-12_Cr-Fe-Ni-Cu-Zn pub TIMS Thermo-Fisher MAT262 5 20200130113406-116770
Allende-12_eCr pub TIMS Thermo-Fisher Triton 2 20200130115748-829002
SM-Allende_d7Li pub TIMS Thermo-Fisher MAT261 2 20200210101024-869245
Allende average_S pub ICPMS Thermo-Fisher Element XR 1 20190205122059-750799
Allende average_K-Na pub Shimadzu AA6200 2 20190205121955-167609
Allende average_Cl-F pub 761 COMPACT IC 2 20190205122300-370398
Allende average_C pub Thermo Scientific MAT253 1 20190205122205-913204
Allende-13_major pub XRF PANalytical PW2400 11 20131217183156-084379
Allende-PML07_Cr-Fe-Ni-Cu-Zn pub TIMS Thermo-Fisher MAT262 5 20200130113406-823705
JB2-2_B pub TIMS Thermo-Fisher MAT261 2 20191011092231-398963
JB2-1_B pub TIMS Thermo-Fisher MAT261 2 20191011091956-857703
Allende-1_B pub TIMS Thermo-Fisher MAT261 2 20191011092448-714212
Allende-2_B pub TIMS Thermo-Fisher MAT261 2 20191011092602-927943
Allende-3_B pub TIMS Thermo-Fisher MAT261 2 20191011092717-597128
Allende-2_Pb pub TIMS Thermo-Fisher MAT261 3 20191011093837-153301
Allende-1_Pb pub TIMS Thermo-Fisher MAT261 3 20191011093735-191297
JB2-2_Pb pub TIMS Thermo-Fisher MAT261 3 20191011093639-992779
JB2-1_Pb pub TIMS Thermo-Fisher MAT261 3 20191011093459-383699
Allende-1_Li pub TIMS Thermo-Fisher MAT261 2 20191011094744-904342
Allende-2_Li pub TIMS Thermo-Fisher MAT261 2 20191011095536-404092
JB2-1_Li pub TIMS Thermo-Fisher MAT261 2 20191011095740-854602
JB2-2_Li pub TIMS Thermo-Fisher MAT261 2 20191011095851-447069
Allende-2_Rb-Sr pub TIMS Thermo-Fisher MAT261 4 20191011101006-857792
Allende-1_Rb-Sr pub TIMS Thermo-Fisher MAT261 4 20191011100544-271489
JB2-2_Rb-Sr pub TIMS Thermo-Fisher MAT261 4 20191011101815-177013
JB2-1_Rb-Sr pub TIMS Thermo-Fisher MAT261 4 20191011101511-959093
Allende-2_Sm-Nd pub TIMS Thermo-Fisher MAT261 4 20191011101142-300899
JB2-2_Sm-Nd pub TIMS Thermo-Fisher MAT261 4 20191011102056-733424
JB2-1_Sm-Nd pub TIMS Thermo-Fisher MAT261 4 20191011101646-745665
Allende-1_Sm-Nd pub TIMS Thermo-Fisher MAT261 4 20191011100818-363094
JB2-1_Ra pub TIMS Thermo-Fisher MAT262 4 20191011135228-878050
JB2-2_Ra pub TIMS Thermo-Fisher MAT262 4 20191011135602-253524
PML-Allende2_d7Li pub TIMS Thermo-Fisher MAT261 2 20200210101900-738321
PML-Allende1_dLi pub TIMS Thermo-Fisher MAT261 2 20200210101451-549925
Allende-1_Li pub ICPMS Yokogawa PMS2000 1 20191015113423-099440
Allende-2_Li pub ICPMS Yokogawa PMS2000 1 20191015113423-682201
name spots global-id
caption ID assembly stone
Table 5. Boron isotopic compositions for the JB-2 and the PML-Allende samples pub 20191011093015-944958 B_TIMS (Nakano, 2001) 5
Table 8. Rb, Sr, Sm and Nd isotope compositions of the PML-Allende and JB-2 pub 20191011102445-951129 Sr-Nd isotopes (Nakamura et al., 2003) 4
Table 6. Summary of lead isotopic compositions of PML-Allende chondrite and GSJ JB-2 pub 20191011094119-880994 lead (Kuritani et al., 2002) 4
Table 9. Re-Os isotope data for the Smithsonian Allende pub 20191011105851-110045 Re-Os (Nakamura et al., 2003) 1
Table 7. Li concentrations and Li isotopic compositions for the JB-2 and the PML-Allende samples pub 20191011100347-966415 lithium 4
manual
  • name
  • Eizo Nakamura
  • Akio Makishima
  • Takuya Moriguti
  • Katsura Kobayashi
  • Chie Sakaguchi
  • Tetsuya Yokoyama
  • Ryoji Tanaka
  • Takeshi Kuritani
  • Takei, Hiroyuki