Composition of melt inclusions and age of zircons of plagiogneisses from the Kola Superdeep Borehole
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| Main Authors: | , , , , , , , |
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| Format: | Dataset Open Access |
| Language: | en |
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PANGAEA
2006
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| _version_ | 1867171364195008512 |
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| author | Chupin, V P Vetrin, V R Rodionov, N V Matukov, D I Berezhnaya, N G Sergeev, S A Mitrofanov, F P Smirnov, YuP |
| author_facet | Chupin, V P Vetrin, V R Rodionov, N V Matukov, D I Berezhnaya, N G Sergeev, S A Mitrofanov, F P Smirnov, YuP |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | A comprehensive study of melt inclusions and SHRIMP dating of zircons from trondhjemite gneisses of the sequence VIII from the Kola Superdeep Borehole has revealed presence of old primary magmatic crystals with age up to 2887+/-15 Ma. This is not consistent with the previous view, according to which the oldest zircons from the Archean Complex in SG-3 are products of granulite metamorphism. Primary magmatic zircons of early generation (from 2887 to 2842 Ma) formed in deep-seated magma chambers during partial crystallization of CO2-saturated trondhjemite estimates on duration of generation of tonalite-trondhjemite-granite melts through partial melting of mafic rocks. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_788243 |
| institution | PANGAEA |
| language | en |
| publishDate | 2006 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Composition of melt inclusions and age of zircons of plagiogneisses from the Kola Superdeep Borehole Chupin, V P Vetrin, V R Rodionov, N V Matukov, D I Berezhnaya, N G Sergeev, S A Mitrofanov, F P Smirnov, YuP Archive of Ocean Data; ARCOD; Kola Peninsula; RDRILL; Rock drill; SG-3 A comprehensive study of melt inclusions and SHRIMP dating of zircons from trondhjemite gneisses of the sequence VIII from the Kola Superdeep Borehole has revealed presence of old primary magmatic crystals with age up to 2887+/-15 Ma. This is not consistent with the previous view, according to which the oldest zircons from the Archean Complex in SG-3 are products of granulite metamorphism. Primary magmatic zircons of early generation (from 2887 to 2842 Ma) formed in deep-seated magma chambers during partial crystallization of CO2-saturated trondhjemite estimates on duration of generation of tonalite-trondhjemite-granite melts through partial melting of mafic rocks. |
| title | Composition of melt inclusions and age of zircons of plagiogneisses from the Kola Superdeep Borehole |
| topic | Archive of Ocean Data; ARCOD; Kola Peninsula; RDRILL; Rock drill; SG-3 |
| url | https://doi.org/10.1594/PANGAEA.788243 |