The concentration of platinum-group elements and gold in southern African and Karelian kimberlite-hosted mantle xenoliths: Implications for the noble metal content of the Earth's mantle
We have determined the concentrations of the platinum-group elements and gold in 111 mantle xenoliths from more than 20 kimberlite pipes in southern Africa and the Karelian craton, Fennoscandian Shield, with the aim to constrain the composition of the Archean- early Proterozoic primitive mantle. Ave...
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ftunivcardiff:oai:https://orca.cardiff.ac.uk:31331 2023-05-15T16:13:01+02:00 The concentration of platinum-group elements and gold in southern African and Karelian kimberlite-hosted mantle xenoliths: Implications for the noble metal content of the Earth's mantle Maier, Wolfgang D. Peltonen, P. McDonald, Iain Barnes, S. J. Barnes, S.-J. Hatton, C. Viljoen, F. 2012 https://orca.cardiff.ac.uk/id/eprint/31331/ https://doi.org/10.1016/j.chemgeo.2011.06.014 unknown Elsevier Maier, Wolfgang D. https://orca.cardiff.ac.uk/view/cardiffauthors/A1523083O.html orcid:0000-0002-8654-6658 orcid:0000-0002-8654-6658, Peltonen, P., McDonald, Iain https://orca.cardiff.ac.uk/view/cardiffauthors/A0179053.html orcid:0000-0001-9066-7244 orcid:0000-0001-9066-7244, Barnes, S. J., Barnes, S.-J., Hatton, C. and Viljoen, F. 2012. The concentration of platinum-group elements and gold in southern African and Karelian kimberlite-hosted mantle xenoliths: Implications for the noble metal content of the Earth's mantle. Chemical Geology 302-3 , pp. 119-135. 10.1016/j.chemgeo.2011.06.014 https://doi.org/10.1016/j.chemgeo.2011.06.014 doi:10.1016/j.chemgeo.2011.06.014 QE Geology Article PeerReviewed 2012 ftunivcardiff https://doi.org/10.1016/j.chemgeo.2011.06.014 2022-10-20T22:40:49Z We have determined the concentrations of the platinum-group elements and gold in 111 mantle xenoliths from more than 20 kimberlite pipes in southern Africa and the Karelian craton, Fennoscandian Shield, with the aim to constrain the composition of the Archean- early Proterozoic primitive mantle. Average noble metal contents of the southern African peridotite xenoliths (in ppb) are 3.67 Ir, 6.54 Ru, 0.93 Rh, 4.3 Pt, 1.84 Pd, and 1.09 Au, and for the Karelian xenoliths 3.75 Ir, 6.58 Ru, 0.79 Rh, 4.84 Pt, 2.28 Pd, and 1.46 Au. The distribution of PGE-bearing phases is heterogenous, as in previously published datasets of lithospheric mantle from the Kaapvaal and other cratons. We argue that the heterogenous noble metal content of the cratonic lithospheric mantle is partly due to sluggish equilibration of the Archean mantle with late veneer (Maier et al., 2009, Nature, v. 460, 620–623). As a result, the noble metal content of the primitive mantle cannot be accurately determined using cratonic mantle samples. Younger mantle rocks (e.g., orogenic and oceanic peridotites) show more homogenous noble metal contents, but since they formed after the onset of crust formation it is debatable whether their composition accurately defines the noble metal content of PUM. Article in Journal/Newspaper Fennoscandian karelian Cardiff University: ORCA (Online Research @ Cardiff) Chemical Geology 302-303 119 135 |
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Open Polar |
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Cardiff University: ORCA (Online Research @ Cardiff) |
op_collection_id |
ftunivcardiff |
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unknown |
topic |
QE Geology |
spellingShingle |
QE Geology Maier, Wolfgang D. Peltonen, P. McDonald, Iain Barnes, S. J. Barnes, S.-J. Hatton, C. Viljoen, F. The concentration of platinum-group elements and gold in southern African and Karelian kimberlite-hosted mantle xenoliths: Implications for the noble metal content of the Earth's mantle |
topic_facet |
QE Geology |
description |
We have determined the concentrations of the platinum-group elements and gold in 111 mantle xenoliths from more than 20 kimberlite pipes in southern Africa and the Karelian craton, Fennoscandian Shield, with the aim to constrain the composition of the Archean- early Proterozoic primitive mantle. Average noble metal contents of the southern African peridotite xenoliths (in ppb) are 3.67 Ir, 6.54 Ru, 0.93 Rh, 4.3 Pt, 1.84 Pd, and 1.09 Au, and for the Karelian xenoliths 3.75 Ir, 6.58 Ru, 0.79 Rh, 4.84 Pt, 2.28 Pd, and 1.46 Au. The distribution of PGE-bearing phases is heterogenous, as in previously published datasets of lithospheric mantle from the Kaapvaal and other cratons. We argue that the heterogenous noble metal content of the cratonic lithospheric mantle is partly due to sluggish equilibration of the Archean mantle with late veneer (Maier et al., 2009, Nature, v. 460, 620–623). As a result, the noble metal content of the primitive mantle cannot be accurately determined using cratonic mantle samples. Younger mantle rocks (e.g., orogenic and oceanic peridotites) show more homogenous noble metal contents, but since they formed after the onset of crust formation it is debatable whether their composition accurately defines the noble metal content of PUM. |
format |
Article in Journal/Newspaper |
author |
Maier, Wolfgang D. Peltonen, P. McDonald, Iain Barnes, S. J. Barnes, S.-J. Hatton, C. Viljoen, F. |
author_facet |
Maier, Wolfgang D. Peltonen, P. McDonald, Iain Barnes, S. J. Barnes, S.-J. Hatton, C. Viljoen, F. |
author_sort |
Maier, Wolfgang D. |
title |
The concentration of platinum-group elements and gold in southern African and Karelian kimberlite-hosted mantle xenoliths: Implications for the noble metal content of the Earth's mantle |
title_short |
The concentration of platinum-group elements and gold in southern African and Karelian kimberlite-hosted mantle xenoliths: Implications for the noble metal content of the Earth's mantle |
title_full |
The concentration of platinum-group elements and gold in southern African and Karelian kimberlite-hosted mantle xenoliths: Implications for the noble metal content of the Earth's mantle |
title_fullStr |
The concentration of platinum-group elements and gold in southern African and Karelian kimberlite-hosted mantle xenoliths: Implications for the noble metal content of the Earth's mantle |
title_full_unstemmed |
The concentration of platinum-group elements and gold in southern African and Karelian kimberlite-hosted mantle xenoliths: Implications for the noble metal content of the Earth's mantle |
title_sort |
concentration of platinum-group elements and gold in southern african and karelian kimberlite-hosted mantle xenoliths: implications for the noble metal content of the earth's mantle |
publisher |
Elsevier |
publishDate |
2012 |
url |
https://orca.cardiff.ac.uk/id/eprint/31331/ https://doi.org/10.1016/j.chemgeo.2011.06.014 |
genre |
Fennoscandian karelian |
genre_facet |
Fennoscandian karelian |
op_relation |
Maier, Wolfgang D. https://orca.cardiff.ac.uk/view/cardiffauthors/A1523083O.html orcid:0000-0002-8654-6658 orcid:0000-0002-8654-6658, Peltonen, P., McDonald, Iain https://orca.cardiff.ac.uk/view/cardiffauthors/A0179053.html orcid:0000-0001-9066-7244 orcid:0000-0001-9066-7244, Barnes, S. J., Barnes, S.-J., Hatton, C. and Viljoen, F. 2012. The concentration of platinum-group elements and gold in southern African and Karelian kimberlite-hosted mantle xenoliths: Implications for the noble metal content of the Earth's mantle. Chemical Geology 302-3 , pp. 119-135. 10.1016/j.chemgeo.2011.06.014 https://doi.org/10.1016/j.chemgeo.2011.06.014 doi:10.1016/j.chemgeo.2011.06.014 |
op_doi |
https://doi.org/10.1016/j.chemgeo.2011.06.014 |
container_title |
Chemical Geology |
container_volume |
302-303 |
container_start_page |
119 |
op_container_end_page |
135 |
_version_ |
1765998630551945216 |