The Sulfide/Silicate Coefficients of Nd and Sm: Geochemical “Fingerprints” for the Syn- and Epigenetic Cu-Ni-(PGE) Ores in the NE Fennoscandian Shield
One of the current directions of the Sm-Nd isotope systematics development is a dating of the ore process using sulfide minerals. Yet, the issue of the existence of rare earth elements (REE) in sulfides is still a matter for discussion. Sulfides from ore-bearing rocks of Proterozoic (2.53–1.98 Ga) C...
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ftmdpi:oai:mdpi.com:/2075-163X/11/10/1069/ 2023-08-20T04:06:27+02:00 The Sulfide/Silicate Coefficients of Nd and Sm: Geochemical “Fingerprints” for the Syn- and Epigenetic Cu-Ni-(PGE) Ores in the NE Fennoscandian Shield Pavel A. Serov Tamara B. Bayanova agris 2021-09-29 application/pdf https://doi.org/10.3390/min11101069 EN eng Multidisciplinary Digital Publishing Institute Mineral Geochemistry and Geochronology https://dx.doi.org/10.3390/min11101069 https://creativecommons.org/licenses/by/4.0/ Minerals; Volume 11; Issue 10; Pages: 1069 sulfides partition coefficients REE distribution fluide inclusions Fennoscandian shield Cu-Ni-PGE ores Text 2021 ftmdpi https://doi.org/10.3390/min11101069 2023-08-01T02:50:04Z One of the current directions of the Sm-Nd isotope systematics development is a dating of the ore process using sulfide minerals. Yet, the issue of the existence of rare earth elements (REE) in sulfides is still a matter for discussion. Sulfides from ore-bearing rocks of Proterozoic (2.53–1.98 Ga) Cu-Ni and platinum group elements (PGE) deposits of the Fennoscandian Shield were studied. It is found that the most probable source of REE in sulfide minerals from Cu-Ni-PGE complexes could be submicronic fluid inclusions, which are trapped at the mineral crystallization stage. In such a case, fluid or melt inclusions are specimens of the syngenetic parental melt, from which the base mineral formed, and these reflect a composition of the parental fluid. The mineral–rock partition coefficients for Nd and Sm can be used as “fingerprints” for individual deposits, and these are isotope-geochemical indicators of the ore-caused fluid that is syngenetic to sulfide. Moreover, the DNd/DSm ratio for various sulfide minerals can be used as a prospective geochemical tool for reconstructing a mineral formation sequence in ore complexes. On the other hand, differences in isotope compositions of sulfide neodymium could be markers of some ore-caused fluids and related to certain generations of sulfide minerals. Text Fennoscandian MDPI Open Access Publishing Minerals 11 10 1069 |
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MDPI Open Access Publishing |
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English |
topic |
sulfides partition coefficients REE distribution fluide inclusions Fennoscandian shield Cu-Ni-PGE ores |
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sulfides partition coefficients REE distribution fluide inclusions Fennoscandian shield Cu-Ni-PGE ores Pavel A. Serov Tamara B. Bayanova The Sulfide/Silicate Coefficients of Nd and Sm: Geochemical “Fingerprints” for the Syn- and Epigenetic Cu-Ni-(PGE) Ores in the NE Fennoscandian Shield |
topic_facet |
sulfides partition coefficients REE distribution fluide inclusions Fennoscandian shield Cu-Ni-PGE ores |
description |
One of the current directions of the Sm-Nd isotope systematics development is a dating of the ore process using sulfide minerals. Yet, the issue of the existence of rare earth elements (REE) in sulfides is still a matter for discussion. Sulfides from ore-bearing rocks of Proterozoic (2.53–1.98 Ga) Cu-Ni and platinum group elements (PGE) deposits of the Fennoscandian Shield were studied. It is found that the most probable source of REE in sulfide minerals from Cu-Ni-PGE complexes could be submicronic fluid inclusions, which are trapped at the mineral crystallization stage. In such a case, fluid or melt inclusions are specimens of the syngenetic parental melt, from which the base mineral formed, and these reflect a composition of the parental fluid. The mineral–rock partition coefficients for Nd and Sm can be used as “fingerprints” for individual deposits, and these are isotope-geochemical indicators of the ore-caused fluid that is syngenetic to sulfide. Moreover, the DNd/DSm ratio for various sulfide minerals can be used as a prospective geochemical tool for reconstructing a mineral formation sequence in ore complexes. On the other hand, differences in isotope compositions of sulfide neodymium could be markers of some ore-caused fluids and related to certain generations of sulfide minerals. |
format |
Text |
author |
Pavel A. Serov Tamara B. Bayanova |
author_facet |
Pavel A. Serov Tamara B. Bayanova |
author_sort |
Pavel A. Serov |
title |
The Sulfide/Silicate Coefficients of Nd and Sm: Geochemical “Fingerprints” for the Syn- and Epigenetic Cu-Ni-(PGE) Ores in the NE Fennoscandian Shield |
title_short |
The Sulfide/Silicate Coefficients of Nd and Sm: Geochemical “Fingerprints” for the Syn- and Epigenetic Cu-Ni-(PGE) Ores in the NE Fennoscandian Shield |
title_full |
The Sulfide/Silicate Coefficients of Nd and Sm: Geochemical “Fingerprints” for the Syn- and Epigenetic Cu-Ni-(PGE) Ores in the NE Fennoscandian Shield |
title_fullStr |
The Sulfide/Silicate Coefficients of Nd and Sm: Geochemical “Fingerprints” for the Syn- and Epigenetic Cu-Ni-(PGE) Ores in the NE Fennoscandian Shield |
title_full_unstemmed |
The Sulfide/Silicate Coefficients of Nd and Sm: Geochemical “Fingerprints” for the Syn- and Epigenetic Cu-Ni-(PGE) Ores in the NE Fennoscandian Shield |
title_sort |
sulfide/silicate coefficients of nd and sm: geochemical “fingerprints” for the syn- and epigenetic cu-ni-(pge) ores in the ne fennoscandian shield |
publisher |
Multidisciplinary Digital Publishing Institute |
publishDate |
2021 |
url |
https://doi.org/10.3390/min11101069 |
op_coverage |
agris |
genre |
Fennoscandian |
genre_facet |
Fennoscandian |
op_source |
Minerals; Volume 11; Issue 10; Pages: 1069 |
op_relation |
Mineral Geochemistry and Geochronology https://dx.doi.org/10.3390/min11101069 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.3390/min11101069 |
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Minerals |
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11 |
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10 |
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1069 |
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