Makishima, Akio & Masuda, Akimasa (1993) Primordial Ce isotopic composition of the solar system, Chemical Geology, 106, 197-205, doi: 10.1016/0009-2541(93)90026-F. < 20200219141708-609533 > pub

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

  • abstract:

    Ce and Nd isotope ratios and REE contents of one carbonaceous chondrite (Murchison), 3 ordinary chondrites (Granès, Holbrook and Barwise) and 4 achondrites (Camel Donga, Juvinas, two pieces of Millbillillie) were measured. For the Ce isotope analysis of meteorite samples the new chemistry for extracting Ce from the gel formed after decomposition of ∼1-g chondrite sample with Mg content of 20% was developed with a recovery yield of 80%. The initial Ce isotope ratio of each meteorite sample was calculated with the assumption that the age of meteorite samples is 4.56 Ga, and the average value was obtained to be 138Ce/142Ce−0.0225321 ± 0.0000007 (2σ), which is considered to be the primordial Ce isotopic composition of the solar system. The average of the present-day Ce isotope ratios of the chondrites of this study and that previously published by Shimizu et al. is 0.0225653, which suggests that the estimation of the Ce isotope ratio of the present-day bulk Earth of 0.0225652 that was published by Makishima and Nakamura is convincing. The Ce isotope ratio of the present-day bulk Earth of 0.0225652 gives the 138La/142Ce ratio of the bulk Earth to be 0.00306 ± 0.00006 (2σ), which corresponds to La/Ce = 0.375 ± 0.007 (2σ). We propose that the La/Ce ratio of 0.375 represents that of the bulk Earth or CHUR.

  • doi: 10.1016/0009-2541(93)90026-F
  • modified at 11 h ago
Img 6622@3097b2fcf6ad1a4cc414d11 thumb Murchison < 20120710094735-522-706 >pub
  • classification: chondrite:carbonaceous
  • physical-form: powder
  • quantity (g): 0.4521
  • modified at 2020-05-02
/pub/specimens/612 Granes < 20071216135919.en >pub
  • classification: chondrite:ordinary
  • physical-form: aliquot
  • quantity (g): 0.0
  • status: (zero)
  • description: L6; Original weight: unknown; Price: unknown; Three pieces are contained in a plastic bag in a plastic box.
  • modified at 2020-05-02
/pub/specimens/583 Barwise-2 < 20071215181700.en >pub
  • classification: chondrite:ordinary
  • physical-form: aliquot
  • quantity (g): 0.0
  • status: (zero)
  • description: H5; Original weight: unknown; Price: unknown; A piece is contained in a plastic bag in a plastic box.
  • modified at 2020-05-02
/pub/specimens/562 Camel Donga 1 < 20071215165540.en >pub
  • classification: achondrite
  • physical-form: aliquot
  • quantity (g): 0.0
  • status: (zero)
  • description: Monomict Eucrite; Original weight: unknown (12.15 g in total, as of 2016-05-30); Price: unknown; Two big pieces (around 2 cm in size) and several small pieces are contained in a plastic container. As of 2016-05-30, it has been divided into three chuncks; CD1-1, CD1-2, and CD1-3.
  • modified at 2020-05-02
/pub/specimens/580 Juvinas < 20071215180710.en >pub
  • classification: achondrite
  • physical-form: aliquot
  • quantity (g): 0.0
  • status: (zero)
  • description: Monomict Eucrite; Original weight: unknown; Price: unknown;Three small pieces are contained in a plastic bag in a plastic box.
  • modified at 2020-05-02
Img 2666 thumb Millbillillie1-a < 20160531174227-893726 >pub
  • classification: achondrite
  • physical-form: chunk
  • quantity (g): 0.0
  • status: (zero)
  • description: chunks with fusion crust, separated from TK millbillillie1-b1 and TS millbillillie1-c1.
  • modified at 2020-05-02
/pub/specimens/561 Millbillillie-2 < 20071215164525.en >pub
  • classification: achondrite
  • physical-form: aliquot
  • quantity (g): 0.0
  • status: (zero)
  • description: Monomict Eucrite; Original weight: unknown; Price: unknown; A big piece and several small pieces are contained in a plastic container.
  • modified at 2020-05-02
20071217 3 thumb Holbrook (69) < 20071223120045.en >pub
  • classification: chondrite:ordinary
  • physical-form: aliquot
  • status: (unknown)
  • description: L6; Original weight: unknown; Price: unknown;Powder is contained in a plastic bottle.
  • modified at 2020-05-02
name box-type global-id
binder of Primordial Ce isotopic composition of the solar system pub container 20200219141810-779473
name device size global-id
Murchison_Li pub ICPMS Yokogawa PMS2000 1 20191015113423-977079
Murchison_d66Zn pub ICPMS Thermo-Fisher Neptune 1 20191003103144-702901
Murchison_d56Fe pub ICPMS Thermo-Fisher Neptune 1 20191003113551-045112
Murchison_Ge-As-Se-Te pub Q-ICPMS Agilent 7500cs 13 20191004113713-300139
Murchison_S (Max, 2012) pub ICPMS Thermo-Fisher Neptune 1 20191223154205-523816
Murchison_d7Li pub TIMS Thermo-Fisher MAT261 2 20200210102134-572291
Murchison pub TIMS Thermo-Fisher MAT261 3 20200219151943-846383
Murchison pub TIMS Thermo-Fisher MAT261 4 20200219150029-536032
Murchison pub TIMS Thermo-Fisher MAT261 10 20200219144239-898963
Granes pub TIMS Thermo-Fisher MAT261 4 20200219150029-346260
Granes pub TIMS Thermo-Fisher MAT261 3 20200219151943-999742
Granes pub TIMS Thermo-Fisher MAT261 9 20200219144239-866557
Holbrook (69) pub TIMS Thermo-Fisher MAT261 4 20200219150029-495249
Holbrook (69) pub TIMS Thermo-Fisher MAT261 10 20200219144239-619644
Barwise-2 pub TIMS Thermo-Fisher MAT261 4 20200219150029-909838
Barwise-2 pub TIMS Thermo-Fisher MAT261 10 20200219144240-627718
CD1_eTi_average pub ICPMS 4 20200212110721-399168
Camel Donga 1 pub TIMS Thermo-Fisher MAT261 10 20200219144240-943371
Camel Donga 1 pub TIMS Thermo-Fisher MAT261 4 20200219150029-073251
Camel Donga 1 pub TIMS Thermo-Fisher MAT261 3 20200219151943-715798
Juvinas pub TIMS Thermo-Fisher MAT261 10 20200219144240-073905
Juvinas pub TIMS Thermo-Fisher MAT261 4 20200219150029-661429
Juvinas pub TIMS Thermo-Fisher MAT261 3 20200219151943-307227
Millbillillie1-a pub TIMS Thermo-Fisher MAT261 10 20200219144240-289503
Millbillillie1-a pub TIMS Thermo-Fisher MAT261 4 20200219150029-283855
Millbillillie1-a pub TIMS Thermo-Fisher MAT261 3 20200219151943-925077
Millbillillie-2 pub TIMS Thermo-Fisher MAT261 10 20200219144241-327950
Millbillillie-2 pub TIMS Thermo-Fisher MAT261 4 20200219150030-276871
Juvinas-3 pub TIMS Thermo-Fisher MAT261 3 20200214145303-752016
CD1-1_eTi pub ICPMS 4 20200212105727-503280
CD1-2_eTi pub ICPMS 4 20200212110321-955382
CD1-3_eTi pub ICPMS 4 20200212110333-657669
Murchison#1_TE-Max2006 pub Q-ICPMS Agilent 7500cs 42 20191021095807-319574
Murchison#2_TE-Max2006 pub Q-ICPMS Agilent 7500cs 42 20191021100427-442358
Murchison #1_Cd pub Q-ICPMS Agilent 7500cs 3 20191002155809-460712
Murchison #2_Cd pub Q-ICPMS Agilent 7500cs 1 20191002155809-338845
Holbrook #1 pub TIMS Thermo-Fisher MAT261 3 20200219151943-273077
Holbrook #2 pub TIMS Thermo-Fisher MAT261 3 20200219151943-015614
Barwise #1 pub TIMS Thermo-Fisher MAT261 3 20200219151943-002579
Barwise #2 pub TIMS Thermo-Fisher MAT261 3 20200219151943-784692
Millbillillie-2 #1 pub TIMS Thermo-Fisher MAT261 3 20200219151944-942742
Millbillillie-2 #2 pub TIMS Thermo-Fisher MAT261 3 20200219151944-357713
name spots global-id
caption ID assembly stone
Table 2. Sm-Nd isotopic results pub 20200219144510-827380 Sm-Nd (Max,1993) 8
Table 1. REE concentration (ppm) in meteorites pub 20200219143617-120884 REE (Max, 1993) 8
Table 3. La-Ce isotopic results of meteorites pub 20200219150655-243806 La-Ce (Max, 1993) 11
manual
  • name
  • Makishima, Akio
  • Masuda, Akimasa