Experimental investigation of Ru isotope fractionation between metal, silicate and sulfide melts.
Saved in:
| Title: | Experimental investigation of Ru isotope fractionation between metal, silicate and sulfide melts. |
|---|---|
| Authors: | Grützner, Tobias1,2 (AUTHOR) tobias.grutzner-handke@sorbonne-universite.fr, Hopp, Timo3,4 (AUTHOR) hopp@uchicago.edu, Berndt, Jasper2 (AUTHOR) jberndt@wwu.de, Rohrbach, Arno2 (AUTHOR) arno.rohrbach@wwu.de, Klemme, Stephan2 (AUTHOR) stephan.klemme@wwu.de |
| Source: | Chemical Geology. Oct2021, Vol. 580, pN.PAG-N.PAG. 1p. |
| Subjects: | Isotopic fractionation, Siderophile elements, Earth's core, Liquid metals, Metal sulfides, Metals, Tin |
| Abstract: | To improve the understanding of large-scale planetary processes, i.e. differentiation and core formation, of Earth and other planetary bodies, we performed experiments at 1 GPa in a range of temperatures to investigate mass-dependent isotope fractionation of ruthenium (Ru) between metal, silicate, and sulfide melts. Metal silicate fractionation is 102Ru/99Ru silicate - 102Ru/99Ru metal = 0.02 ± 0.02‰ (95% confidence interval) at 1600 °C and therefore negligible for Earth's core formation. However, there is resolvable Ru isotope fractionation between liquid metal and liquid sulfide: The 102Ru/99Ru ratio of liquid sulfide is 0.11 ± 0.03‰ lighter than that of liquid metal at 1400 °C in sulfur (S)-bearing experiments. The unexpected lighter Ru isotope composition of the sulfide can be best explained with different Ru S bonding environments. Our results show furthermore, that addition of tin (Sn) instead of S to experimental charges affects Ru isotope fractionation significantly. The 102Ru/99Ru ratios in the Sn-bearing phase are 0.18‰ ± 0.01‰ heavier than metal; hence, the presence of Sn not only changes the magnitude of the Ru isotope fractionation but also its direction. The observed Ru isotope fractionations are too small to preserve a resolvable isotope fractionation signature during core formation or the Hadean matte scenario at very high temperatures. [ABSTRACT FROM AUTHOR] |
| Copyright of Chemical Geology is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Text: Availability: 0 |
|---|---|
| Header | DbId: egs DbLabel: Engineering Source An: 152002190 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
| IllustrationInfo | |
| Items | – Name: Title Label: Title Group: Ti Data: Experimental investigation of Ru isotope fractionation between metal, silicate and sulfide melts. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Grützner%2C+Tobias%22">Grützner, Tobias</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> tobias.grutzner-handke@sorbonne-universite.fr</i><br /><searchLink fieldCode="AR" term="%22Hopp%2C+Timo%22">Hopp, Timo</searchLink><relatesTo>3,4</relatesTo> (AUTHOR)<i> hopp@uchicago.edu</i><br /><searchLink fieldCode="AR" term="%22Berndt%2C+Jasper%22">Berndt, Jasper</searchLink><relatesTo>2</relatesTo> (AUTHOR)<i> jberndt@wwu.de</i><br /><searchLink fieldCode="AR" term="%22Rohrbach%2C+Arno%22">Rohrbach, Arno</searchLink><relatesTo>2</relatesTo> (AUTHOR)<i> arno.rohrbach@wwu.de</i><br /><searchLink fieldCode="AR" term="%22Klemme%2C+Stephan%22">Klemme, Stephan</searchLink><relatesTo>2</relatesTo> (AUTHOR)<i> stephan.klemme@wwu.de</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Chemical+Geology%22">Chemical Geology</searchLink>. Oct2021, Vol. 580, pN.PAG-N.PAG. 1p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Isotopic+fractionation%22">Isotopic fractionation</searchLink><br /><searchLink fieldCode="DE" term="%22Siderophile+elements%22">Siderophile elements</searchLink><br /><searchLink fieldCode="DE" term="%22Earth's+core%22">Earth's core</searchLink><br /><searchLink fieldCode="DE" term="%22Liquid+metals%22">Liquid metals</searchLink><br /><searchLink fieldCode="DE" term="%22Metal+sulfides%22">Metal sulfides</searchLink><br /><searchLink fieldCode="DE" term="%22Metals%22">Metals</searchLink><br /><searchLink fieldCode="DE" term="%22Tin%22">Tin</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: To improve the understanding of large-scale planetary processes, i.e. differentiation and core formation, of Earth and other planetary bodies, we performed experiments at 1 GPa in a range of temperatures to investigate mass-dependent isotope fractionation of ruthenium (Ru) between metal, silicate, and sulfide melts. Metal silicate fractionation is 102Ru/99Ru silicate - 102Ru/99Ru metal = 0.02 ± 0.02‰ (95% confidence interval) at 1600 °C and therefore negligible for Earth's core formation. However, there is resolvable Ru isotope fractionation between liquid metal and liquid sulfide: The 102Ru/99Ru ratio of liquid sulfide is 0.11 ± 0.03‰ lighter than that of liquid metal at 1400 °C in sulfur (S)-bearing experiments. The unexpected lighter Ru isotope composition of the sulfide can be best explained with different Ru S bonding environments. Our results show furthermore, that addition of tin (Sn) instead of S to experimental charges affects Ru isotope fractionation significantly. The 102Ru/99Ru ratios in the Sn-bearing phase are 0.18‰ ± 0.01‰ heavier than metal; hence, the presence of Sn not only changes the magnitude of the Ru isotope fractionation but also its direction. The observed Ru isotope fractionations are too small to preserve a resolvable isotope fractionation signature during core formation or the Hadean matte scenario at very high temperatures. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Chemical Geology is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
| PLink | https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=egs&AN=152002190 |
| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1016/j.chemgeo.2021.120384 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 1 StartPage: N.PAG Subjects: – SubjectFull: Isotopic fractionation Type: general – SubjectFull: Siderophile elements Type: general – SubjectFull: Earth's core Type: general – SubjectFull: Liquid metals Type: general – SubjectFull: Metal sulfides Type: general – SubjectFull: Metals Type: general – SubjectFull: Tin Type: general Titles: – TitleFull: Experimental investigation of Ru isotope fractionation between metal, silicate and sulfide melts. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Grützner, Tobias – PersonEntity: Name: NameFull: Hopp, Timo – PersonEntity: Name: NameFull: Berndt, Jasper – PersonEntity: Name: NameFull: Rohrbach, Arno – PersonEntity: Name: NameFull: Klemme, Stephan IsPartOfRelationships: – BibEntity: Dates: – D: 05 M: 10 Text: Oct2021 Type: published Y: 2021 Identifiers: – Type: issn-print Value: 00092541 Numbering: – Type: volume Value: 580 Titles: – TitleFull: Chemical Geology Type: main |
| ResultId | 1 |
