U‐Pb age and Hf isotope compositions of zircons from the north‐western region of the Ukrainian shield: mantle melting in response to post‐collision extension
Terra Nova, 24, 373–379, 2012 Abstract The North‐Western region of the Ukrainian shield represents Palaeoproterozoic continental crust formed essentially during two orogenic events at ca. 2.1–2.05 and 2.0–1.95 Ga. At 1.8–1.74 this area was intruded by huge Korosten anorthosite–mangerite–charnockite...
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crwiley:10.1111/j.1365-3121.2012.01075.x 2024-09-30T14:34:51+00:00 U‐Pb age and Hf isotope compositions of zircons from the north‐western region of the Ukrainian shield: mantle melting in response to post‐collision extension Shumlyanskyy, Leonid Billström, Kjell Hawkesworth, Chris Elming, Sten‐Åke 2012 http://dx.doi.org/10.1111/j.1365-3121.2012.01075.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1365-3121.2012.01075.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1365-3121.2012.01075.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Terra Nova volume 24, issue 5, page 373-379 ISSN 0954-4879 1365-3121 journal-article 2012 crwiley https://doi.org/10.1111/j.1365-3121.2012.01075.x 2024-09-17T04:50:19Z Terra Nova, 24, 373–379, 2012 Abstract The North‐Western region of the Ukrainian shield represents Palaeoproterozoic continental crust formed essentially during two orogenic events at ca. 2.1–2.05 and 2.0–1.95 Ga. At 1.8–1.74 this area was intruded by huge Korosten anorthosite–mangerite–charnockite granite complex. At least three generations of mafic dykes can be distinguished in the region. We report new U‐Pb data obtained for a suite of Ni‐enriched dolerite dykes and layered gabbroic intrusions. Our results indicate that the Tomashgorod dyke was formed at 1787.4 ± 6.4 Ma, the Prutivka intrusion at 1777.0 ± 4.7 Ma and the Kamenka massif at ca. 1.79 Ga. This time coincides with the collision of the Fennoscandian and Sarmatian segments of the East European craton and it is contemporaneous with the initial stages of evolution of the Korosten complex. Hf isotopic compositions of zircons indicate that these rocks originated due to melting of moderately depleted mantle material. Article in Journal/Newspaper Fennoscandian Wiley Online Library Terra Nova 24 5 373 379 |
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English |
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Terra Nova, 24, 373–379, 2012 Abstract The North‐Western region of the Ukrainian shield represents Palaeoproterozoic continental crust formed essentially during two orogenic events at ca. 2.1–2.05 and 2.0–1.95 Ga. At 1.8–1.74 this area was intruded by huge Korosten anorthosite–mangerite–charnockite granite complex. At least three generations of mafic dykes can be distinguished in the region. We report new U‐Pb data obtained for a suite of Ni‐enriched dolerite dykes and layered gabbroic intrusions. Our results indicate that the Tomashgorod dyke was formed at 1787.4 ± 6.4 Ma, the Prutivka intrusion at 1777.0 ± 4.7 Ma and the Kamenka massif at ca. 1.79 Ga. This time coincides with the collision of the Fennoscandian and Sarmatian segments of the East European craton and it is contemporaneous with the initial stages of evolution of the Korosten complex. Hf isotopic compositions of zircons indicate that these rocks originated due to melting of moderately depleted mantle material. |
format |
Article in Journal/Newspaper |
author |
Shumlyanskyy, Leonid Billström, Kjell Hawkesworth, Chris Elming, Sten‐Åke |
spellingShingle |
Shumlyanskyy, Leonid Billström, Kjell Hawkesworth, Chris Elming, Sten‐Åke U‐Pb age and Hf isotope compositions of zircons from the north‐western region of the Ukrainian shield: mantle melting in response to post‐collision extension |
author_facet |
Shumlyanskyy, Leonid Billström, Kjell Hawkesworth, Chris Elming, Sten‐Åke |
author_sort |
Shumlyanskyy, Leonid |
title |
U‐Pb age and Hf isotope compositions of zircons from the north‐western region of the Ukrainian shield: mantle melting in response to post‐collision extension |
title_short |
U‐Pb age and Hf isotope compositions of zircons from the north‐western region of the Ukrainian shield: mantle melting in response to post‐collision extension |
title_full |
U‐Pb age and Hf isotope compositions of zircons from the north‐western region of the Ukrainian shield: mantle melting in response to post‐collision extension |
title_fullStr |
U‐Pb age and Hf isotope compositions of zircons from the north‐western region of the Ukrainian shield: mantle melting in response to post‐collision extension |
title_full_unstemmed |
U‐Pb age and Hf isotope compositions of zircons from the north‐western region of the Ukrainian shield: mantle melting in response to post‐collision extension |
title_sort |
u‐pb age and hf isotope compositions of zircons from the north‐western region of the ukrainian shield: mantle melting in response to post‐collision extension |
publisher |
Wiley |
publishDate |
2012 |
url |
http://dx.doi.org/10.1111/j.1365-3121.2012.01075.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1365-3121.2012.01075.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1365-3121.2012.01075.x |
genre |
Fennoscandian |
genre_facet |
Fennoscandian |
op_source |
Terra Nova volume 24, issue 5, page 373-379 ISSN 0954-4879 1365-3121 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.1365-3121.2012.01075.x |
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Terra Nova |
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24 |
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5 |
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373 |
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379 |
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1811638321184505856 |