Platinum–Rhenium–Osmium Isotope Systematics of Chromitites and Native Osmium of the Guli Massif, Maimecha–Kotui Province, Russia.
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| Title: | Platinum–Rhenium–Osmium Isotope Systematics of Chromitites and Native Osmium of the Guli Massif, Maimecha–Kotui Province, Russia. |
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| Authors: | Malitch, K. N.1 (AUTHOR) malitch@igg.uran.ru, Puchtel, I. S.2 (AUTHOR) ipuchtel@umd.edu, Kogarko, L. N.3 (AUTHOR) kogarko@geokhi.ru, Badanina, I. Yu.1 (AUTHOR) |
| Source: | Doklady Earth Sciences. Mar2024, Vol. 515 Issue 1, p581-585. 5p. |
| Subjects: | Siderophile elements, Electron probe microanalysis, Osmium, Ultrabasic rocks, Isotopes, Carbonatites |
| Geographic Terms: | Russia |
| Abstract: | To gain insight into the source of ore material, this study presents new Re–Os and Pt–Os isotopic and highly siderophile element (HSE: Os, Ir, Ru, Pt, Pd, Re) abundance data for chromitite and native osmium from the Guli massif of ultramafic alkaline rocks and carbonatites located in the Maimecha–Kotui province, Polar Siberia. The study utilized a number of analytical techniques, including electron probe microanalysis (EPMA), negative thermal ionization mass spectrometry (N-TIMS), and high pressure asher digestion and isotope dilution inductively-coupled plasma mass-spectrometry (ID ICP-MS). The HSE concentrations in chromitite samples range from 191 to 866 ppb with a predominance of Ir-group platinum-group elements (PGE) (Os, Ir, and Ru) over Pt-group PGE (Rh, Pt, and Pd) and Re, which is consistent with the platinum-group mineral control (i.e., Os–Ir alloys and laurite, RuS2) within the chromitite. The Re–Os and Pt–Os isotope data indicate that the HSE budget of the chromitite and native osmium from the Guli massif was largely controlled by that of their mantle source, which evolved with long-term near-chondritic Re/Os and Pt/Os ratios; this source had time-integrated Re/Os and Pt/Os within the range of those for the majority of komatiites and abyssal peridotites worldwide. [ABSTRACT FROM AUTHOR] |
| Copyright of Doklady Earth Sciences is the property of Springer Nature 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 |
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| Header | DbId: egs DbLabel: Engineering Source An: 177194829 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Platinum–Rhenium–Osmium Isotope Systematics of Chromitites and Native Osmium of the Guli Massif, Maimecha–Kotui Province, Russia. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Malitch%2C+K%2E+N%2E%22">Malitch, K. N.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> malitch@igg.uran.ru</i><br /><searchLink fieldCode="AR" term="%22Puchtel%2C+I%2E+S%2E%22">Puchtel, I. S.</searchLink><relatesTo>2</relatesTo> (AUTHOR)<i> ipuchtel@umd.edu</i><br /><searchLink fieldCode="AR" term="%22Kogarko%2C+L%2E+N%2E%22">Kogarko, L. N.</searchLink><relatesTo>3</relatesTo> (AUTHOR)<i> kogarko@geokhi.ru</i><br /><searchLink fieldCode="AR" term="%22Badanina%2C+I%2E+Yu%2E%22">Badanina, I. Yu.</searchLink><relatesTo>1</relatesTo> (AUTHOR) – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Doklady+Earth+Sciences%22">Doklady Earth Sciences</searchLink>. Mar2024, Vol. 515 Issue 1, p581-585. 5p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Siderophile+elements%22">Siderophile elements</searchLink><br /><searchLink fieldCode="DE" term="%22Electron+probe+microanalysis%22">Electron probe microanalysis</searchLink><br /><searchLink fieldCode="DE" term="%22Osmium%22">Osmium</searchLink><br /><searchLink fieldCode="DE" term="%22Ultrabasic+rocks%22">Ultrabasic rocks</searchLink><br /><searchLink fieldCode="DE" term="%22Isotopes%22">Isotopes</searchLink><br /><searchLink fieldCode="DE" term="%22Carbonatites%22">Carbonatites</searchLink> – Name: SubjectGeographic Label: Geographic Terms Group: Su Data: <searchLink fieldCode="DE" term="%22Russia%22">Russia</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: To gain insight into the source of ore material, this study presents new Re–Os and Pt–Os isotopic and highly siderophile element (HSE: Os, Ir, Ru, Pt, Pd, Re) abundance data for chromitite and native osmium from the Guli massif of ultramafic alkaline rocks and carbonatites located in the Maimecha–Kotui province, Polar Siberia. The study utilized a number of analytical techniques, including electron probe microanalysis (EPMA), negative thermal ionization mass spectrometry (N-TIMS), and high pressure asher digestion and isotope dilution inductively-coupled plasma mass-spectrometry (ID ICP-MS). The HSE concentrations in chromitite samples range from 191 to 866 ppb with a predominance of Ir-group platinum-group elements (PGE) (Os, Ir, and Ru) over Pt-group PGE (Rh, Pt, and Pd) and Re, which is consistent with the platinum-group mineral control (i.e., Os–Ir alloys and laurite, RuS2) within the chromitite. The Re–Os and Pt–Os isotope data indicate that the HSE budget of the chromitite and native osmium from the Guli massif was largely controlled by that of their mantle source, which evolved with long-term near-chondritic Re/Os and Pt/Os ratios; this source had time-integrated Re/Os and Pt/Os within the range of those for the majority of komatiites and abyssal peridotites worldwide. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Doklady Earth Sciences is the property of Springer Nature 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.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1134/S1028334X23603206 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 5 StartPage: 581 Subjects: – SubjectFull: Siderophile elements Type: general – SubjectFull: Electron probe microanalysis Type: general – SubjectFull: Osmium Type: general – SubjectFull: Ultrabasic rocks Type: general – SubjectFull: Isotopes Type: general – SubjectFull: Carbonatites Type: general – SubjectFull: Russia Type: general Titles: – TitleFull: Platinum–Rhenium–Osmium Isotope Systematics of Chromitites and Native Osmium of the Guli Massif, Maimecha–Kotui Province, Russia. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Malitch, K. N. – PersonEntity: Name: NameFull: Puchtel, I. S. – PersonEntity: Name: NameFull: Kogarko, L. N. – PersonEntity: Name: NameFull: Badanina, I. Yu. IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 03 Text: Mar2024 Type: published Y: 2024 Identifiers: – Type: issn-print Value: 1028334X Numbering: – Type: volume Value: 515 – Type: issue Value: 1 Titles: – TitleFull: Doklady Earth Sciences Type: main |
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