Conditions of formation of ferruginous rocks of the Krivoy Rog-Kremenchug zone
Variation of lithosphere thickness during formation of the Krivoy Rog series of the Krivoy Rog-Kremenchug suture zone formation has been found. Analysis of rock associations differences of the greenstone structures of the Middle Dnieper megablock of the Ukrainian Shield and the Krivoy Rog suture zon...
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| Datum: | 2015 |
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Subbotin Institute of Geophysics of the NAS of Ukraine
2015
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journalsuranua-geofizicheskiy-article-1111032020-10-07T11:39:25Z Conditions of formation of ferruginous rocks of the Krivoy Rog-Kremenchug zone Usenko, O. ferruginous formations Krivoy Rog-Krmenchug zone geodynamic processes geochemistry of iron the role of fluid evolution of the composition of the fluid Variation of lithosphere thickness during formation of the Krivoy Rog series of the Krivoy Rog-Kremenchug suture zone formation has been found. Analysis of rock associations differences of the greenstone structures of the Middle Dnieper megablock of the Ukrainian Shield and the Krivoy Rog suture zone has been conducted. It has been shown that the reason of variability of ferruginous formations is different composition of the fluid interacting with the melt on the roof of partial melting layer. Before 2.8 Ga the influence of neutral aquatic fluids and weakly acid ones with chlorine was essential. After 2.8 Ga the total amount of water dissolved in the mantle melts decreases and activity of alkaline fluids with fluorine was manifested as well. It resulted in oxidation-reduction processes and subsequent subdivision into unmixed phases. These processes are related to evolution of deep layers of the Earth. Subbotin Institute of Geophysics of the NAS of Ukraine 2015-06-01 Article Article application/pdf https://journals.uran.ua/geofizicheskiy/article/view/111103 10.24028/gzh.0203-3100.v37i3.2015.111103 Geofizicheskiy Zhurnal; Vol. 37 No. 3 (2015); 66-87 Геофизический журнал; Том 37 № 3 (2015); 66-87 Геофізичний журнал; Том 37 № 3 (2015); 66-87 2524-1052 0203-3100 rus https://journals.uran.ua/geofizicheskiy/article/view/111103/105977 Copyright (c) 2020 Geofizicheskiy Zhurnal https://creativecommons.org/licenses/by/4.0 |
| institution |
Geofizicheskiy Zhurnal |
| baseUrl_str |
|
| datestamp_date |
2020-10-07T11:39:25Z |
| collection |
OJS |
| language |
rus |
| topic |
ferruginous formations Krivoy Rog-Krmenchug zone geodynamic processes geochemistry of iron the role of fluid evolution of the composition of the fluid |
| spellingShingle |
ferruginous formations Krivoy Rog-Krmenchug zone geodynamic processes geochemistry of iron the role of fluid evolution of the composition of the fluid Usenko, O. Conditions of formation of ferruginous rocks of the Krivoy Rog-Kremenchug zone |
| topic_facet |
ferruginous formations Krivoy Rog-Krmenchug zone geodynamic processes geochemistry of iron the role of fluid evolution of the composition of the fluid |
| format |
Article |
| author |
Usenko, O. |
| author_facet |
Usenko, O. |
| author_sort |
Usenko, O. |
| title |
Conditions of formation of ferruginous rocks of the Krivoy Rog-Kremenchug zone |
| title_short |
Conditions of formation of ferruginous rocks of the Krivoy Rog-Kremenchug zone |
| title_full |
Conditions of formation of ferruginous rocks of the Krivoy Rog-Kremenchug zone |
| title_fullStr |
Conditions of formation of ferruginous rocks of the Krivoy Rog-Kremenchug zone |
| title_full_unstemmed |
Conditions of formation of ferruginous rocks of the Krivoy Rog-Kremenchug zone |
| title_sort |
conditions of formation of ferruginous rocks of the krivoy rog-kremenchug zone |
| description |
Variation of lithosphere thickness during formation of the Krivoy Rog series of the Krivoy Rog-Kremenchug suture zone formation has been found. Analysis of rock associations differences of the greenstone structures of the Middle Dnieper megablock of the Ukrainian Shield and the Krivoy Rog suture zone has been conducted. It has been shown that the reason of variability of ferruginous formations is different composition of the fluid interacting with the melt on the roof of partial melting layer. Before 2.8 Ga the influence of neutral aquatic fluids and weakly acid ones with chlorine was essential. After 2.8 Ga the total amount of water dissolved in the mantle melts decreases and activity of alkaline fluids with fluorine was manifested as well. It resulted in oxidation-reduction processes and subsequent subdivision into unmixed phases. These processes are related to evolution of deep layers of the Earth. |
| publisher |
Subbotin Institute of Geophysics of the NAS of Ukraine |
| publishDate |
2015 |
| url |
https://journals.uran.ua/geofizicheskiy/article/view/111103 |
| work_keys_str_mv |
AT usenkoo conditionsofformationofferruginousrocksofthekrivoyrogkremenchugzone |
| first_indexed |
2025-07-17T11:05:15Z |
| last_indexed |
2025-07-17T11:05:15Z |
| _version_ |
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