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Journal ArticleDOI

Abundances of the elements: Meteoritic and solar

01 Jan 1989-Geochimica et Cosmochimica Acta (Pergamon)-Vol. 53, Iss: 1, pp 197-214
TL;DR: In this article, new abundance tables have been compiled for C1 chondrites and the solar photosphere and corona, based on a critical review of the literature to mid-1988.
About: This article is published in Geochimica et Cosmochimica Acta.The article was published on 1989-01-01. It has received 10322 citations till now. The article focuses on the topics: Abundances of the elements & CI chondrite.
Citations
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Journal ArticleDOI
TL;DR: In this paper, the authors compared the relative abundances of the refractory elements in carbonaceous, ordinary, and enstatite chondritic meteorites and found that the most consistent composition of the Earth's core is derived from the seismic profile and its interpretation, compared with primitive meteorites, and chemical and petrological models of peridotite-basalt melting relationships.

10,830 citations

Journal ArticleDOI
TL;DR: The solar chemical composition is an important ingredient in our understanding of the formation, structure, and evolution of both the Sun and our Solar System as discussed by the authors, and it is an essential refer...
Abstract: The solar chemical composition is an important ingredient in our understanding of the formation, structure, and evolution of both the Sun and our Solar System. Furthermore, it is an essential refer ...

8,605 citations

Journal ArticleDOI
TL;DR: In this article, solar photospheric and meteoritic CI chondrite abundance determinations for all elements are summarized and the best currently available photosphere abundances are selected, including the meteoritic and solar abundances of a few elements (e.g., noble gases, beryllium, boron, phosphorous, sulfur).
Abstract: Solar photospheric and meteoritic CI chondrite abundance determinations for all elements are summarized and the best currently available photospheric abundances are selected. The meteoritic and solar abundances of a few elements (e.g., noble gases, beryllium, boron, phosphorous, sulfur) are discussed in detail. The photospheric abundances give mass fractions of hydrogen (X ¼ 0:7491), helium (Y ¼ 0:2377), and heavy elements (Z ¼ 0:0133), leading to Z=X ¼ 0:0177, which is lower than the widely used Z=X ¼ 0:0245 from previous compilations. Recent results from standard solar models considering helium and heavy-element settling imply that photospheric abundances and mass fractions are not equal to protosolar abundances (representative of solar system abundances). Protosolar elemental and isotopic abundances are derived from photospheric abundances by considering settling effects. Derived protosolar mass fractions are X0 ¼ 0:7110, Y0 ¼ 0:2741, and Z0 ¼ 0:0149. The solar system and photospheric abundance tables are used to compute self-consistent sets of condensation temperatures for all elements. Subject headings: astrochemistry — meteors, meteoroids — solar system: formation — Sun: abundances — Sun: photosphere

4,305 citations


Cites background or methods or result from "Abundances of the elements: Meteori..."

  • ...Both values are much smaller than the value AðArÞ ¼ 6:56 0:10 given by Anders & Grevesse (1989), who also considered SW and SEP data for photospheric Ar, but not before adding a factor correcting for coronal/photospheric fractionations....

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  • ...The Anders & Grevesse (1989) composition yields a water/ice to rock ratio of 2, which is reduced to about unity for the solar system and photospheric compositions....

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  • ...While the solar B abundance was revised upward by 0.1 dex by Cunha & Smith (1999), the meteoritic B abundance has dropped by the same amount since Anders & Grevesse (1989)....

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  • ...In this respect, it is worth mentioning that Raiteri et al. (1993) also concluded that the solar elemental Kr abundance from Anders & Grevesse (1989) was underestimated by 20%....

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  • ...The C/O ratio from the determination by Allende Prieto et al. (2001, 2002) is 0.5, which is slightly higher than the C/O ratio of 0.49 found by Grevesse & Sauval (1998), and clearly higher than 0.42 from Anders & Grevesse (1989)....

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Journal ArticleDOI
TL;DR: Modules for Experiments in Stellar Astrophysics (MESA) as mentioned in this paper is a suite of open source, robust, efficient, thread-safe libraries for a wide range of applications in computational stellar astrophysics.
Abstract: Stellar physics and evolution calculations enable a broad range of research in astrophysics. Modules for Experiments in Stellar Astrophysics (MESA) is a suite of open source, robust, efficient, thread-safe libraries for a wide range of applications in computational stellar astrophysics. A one-dimensional stellar evolution module, MESAstar, combines many of the numerical and physics modules for simulations of a wide range of stellar evolution scenarios ranging from very low mass to massive stars, including advanced evolutionary phases. MESAstar solves the fully coupled structure and composition equations simultaneously. It uses adaptive mesh refinement and sophisticated timestep controls, and supports shared memory parallelism based on OpenMP. State-of-the-art modules provide equation of state, opacity, nuclear reaction rates, element diffusion data, and atmosphere boundary conditions. Each module is constructed as a separate Fortran 95 library with its own explicitly defined public interface to facilitate independent development. Several detailed examples indicate the extensive verification and testing that is continuously performed and demonstrate the wide range of capabilities that MESA possesses. These examples include evolutionary tracks of very low mass stars, brown dwarfs, and gas giant planets to very old ages; the complete evolutionary track of a 1 M ☉ star from the pre-main sequence (PMS) to a cooling white dwarf; the solar sound speed profile; the evolution of intermediate-mass stars through the He-core burning phase and thermal pulses on the He-shell burning asymptotic giant branch phase; the interior structure of slowly pulsating B Stars and Beta Cepheids; the complete evolutionary tracks of massive stars from the PMS to the onset of core collapse; mass transfer from stars undergoing Roche lobe overflow; and the evolution of helium accretion onto a neutron star. MESA can be downloaded from the project Web site (http://mesa.sourceforge.net/).

3,474 citations


Cites background from "Abundances of the elements: Meteori..."

  • ...It contains full listings of Solar abundances on several scales (Anders & Grevesse 1989; Grevesse & Noels 1993; Grevesse & Sauval 1998; Lodders 2003; Asplund et al. 2004)....

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Journal ArticleDOI
TL;DR: In this article, the current status of our knowledge of the chemical composition of the Sun is reviewed, essentially derived from the analysis of the solar photospheric spectrum, and a comparison of solar and meteoritic abundances confirms that there is a very good agreement between the two sets of abundances.
Abstract: We review the current status of our knowledge of the chemical composition of the Sun, essentially derived from the analysis of the solar photospheric spectrum. The comparison of solar and meteoritic abundances confirms that there is a very good agreement between the two sets of abundances. They are used to construct a Standard Abundance Distribution.

3,253 citations

References
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Journal ArticleDOI
TL;DR: The IUGS Subcommission on Geochronology (FOOTNOTE 4) as discussed by the authors recommended the adoption of a standard set of decay constants and isotopic abundances in isotope geology.

9,474 citations


"Abundances of the elements: Meteori..." refers methods in this paper

  • ..., except for K4’, where the value recommended in geochronology ( 1.2505 ’ 1 O9 yr, STEIGER and JAGER, 1977) was used....

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Journal ArticleDOI
TL;DR: In this paper, the exact determination of REE and Ba abundances in three carbonaceous (Orgueil Cl, Murchison C2 and Allende C3) and seven olivine-bronzite chondrites were carried out by mass spectrometric isotope dilution technique.

2,026 citations

Journal ArticleDOI
TL;DR: Chondrite classification, primordial matter composition and early solar system chemical processes, discussing cosmic gas condensation and refractory element fractionation are discussed in this paper, with a focus on early solar systems chemical processes.
Abstract: Chondrite classification, primordial matter composition and early solar system chemical processes, discussing cosmic gas condensation and refractory element fractionation

1,690 citations


"Abundances of the elements: Meteori..." refers background in this paper

  • ...…fractionation processes (e.g. chondrule formation) that affected other meteorite classes (ANDERS, 197 1); 2) their volatile element abundances are higher and match solar ratios for Na/Ca, S/Ca, Si/Ca (HOLWEGER, 1977); 3) they give the smoothest nuclidic abundance curve (SUESS, 1947; ANDERS, 1971)....

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Journal ArticleDOI
TL;DR: In this paper, the Ogueil Cl meteorite and all previous Cl chondrite analyses were employed to develop a new solar system abundance table, including the standard deviation and number of analyses for each element.

1,159 citations


Additional excerpts

  • ...Comparison of new solar-system abundances with those of ANDERS and EBIHARA (1982)....

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Book
01 Jan 1968

837 citations