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New U-Pb and Sm-Nd ages and P-T estimates for eclogitization in the Fe-rich gabbro dyke in Gridino area (Belomorian Mobile Belt) |
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| Authors: | A V Berezin V V Travin Yu B Marin S G Skublov E S Bogomolov |
| Institution: | 1. Institute of Precambrian Geology and Geochronology, Russian Academy of Sciences, St. Petersburg, Russia 2. Institute of Geology, Karelian Scientific Center, Russian Academy of Sciences, Petrozavodsk, Russia 3. State Mining University, St. Petersburg, Russia |
| Abstract: | New data from isotope geochronology (U-Pb, Sm-Nd) petrological study provide evidence of the Svecofennian age (～1.9 Ga) for eclogitization in the Fe-gabbro dyke inductile shear zones of Gridinrea. P-T estimates of eclogitization were computed using the THERIAK/DOMINO software. A close timing relationship between dyke magmatism and eclogitization is inferred. |
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