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Immiscibility between Fe- and Si-Rich Silicate Melts in Mesoproterozoic Ferrobasalt of the Ladoga Graben, Karelia, Russia.

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Title: Immiscibility between Fe- and Si-Rich Silicate Melts in Mesoproterozoic Ferrobasalt of the Ladoga Graben, Karelia, Russia.
Authors: Nosova, A. A.1 (AUTHOR) nosova@igem.ru, Lebedeva, N. M.1 (AUTHOR), Sazonova, L. V.1,2 (AUTHOR), Voznyak, A. A.1 (AUTHOR)
Source: Doklady Earth Sciences. Aug2022, Vol. 505 Issue 2, p517-523. 7p.
Subjects: Immiscibility, Silicates, Melting, Granite, Glass
Geographic Terms: Karelia (Russia)
Abstract: Evidence for liquid immiscibility between Fe-rich and Si-rich silicate melts in ferrobasalt of the Ladoga Graben in the Baltic Shield belonging to the Mesoproterozoic anorthosite–rapakivi granite (AMCG-type) association is reported. The liquid immiscibility microtextures are represented by emulsion of tiny globules (1–2 μm) or individual larger globules (10–20 μm) of finely crystallized iron-rich silicate glass embedded in interstitial Si-rich glass. Large globules show the core–shell and core–shell–corona microtextures indicating the immiscibility of the sulfide melt in them. The globules have a high FeO content (31.9 ± 1.6 wt %) and a low SiO2 content (39.5 ± 4.2 wt %). The felsic glass hosting globules contains 61.4 ± 7.1 wt % SiO2 and 8.1 ± 1.5 wt % FeO. The immiscibility could occur at temperatures below 1100°C. [ABSTRACT FROM AUTHOR]
Copyright of Doklady Earth Sciences is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: Immiscibility between Fe- and Si-Rich Silicate Melts in Mesoproterozoic Ferrobasalt of the Ladoga Graben, Karelia, Russia.
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  Data: <searchLink fieldCode="DE" term="%22Immiscibility%22">Immiscibility</searchLink><br /><searchLink fieldCode="DE" term="%22Silicates%22">Silicates</searchLink><br /><searchLink fieldCode="DE" term="%22Melting%22">Melting</searchLink><br /><searchLink fieldCode="DE" term="%22Granite%22">Granite</searchLink><br /><searchLink fieldCode="DE" term="%22Glass%22">Glass</searchLink>
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  Data: Evidence for liquid immiscibility between Fe-rich and Si-rich silicate melts in ferrobasalt of the Ladoga Graben in the Baltic Shield belonging to the Mesoproterozoic anorthosite–rapakivi granite (AMCG-type) association is reported. The liquid immiscibility microtextures are represented by emulsion of tiny globules (1–2 μm) or individual larger globules (10–20 μm) of finely crystallized iron-rich silicate glass embedded in interstitial Si-rich glass. Large globules show the core–shell and core–shell–corona microtextures indicating the immiscibility of the sulfide melt in them. The globules have a high FeO content (31.9 ± 1.6 wt %) and a low SiO2 content (39.5 ± 4.2 wt %). The felsic glass hosting globules contains 61.4 ± 7.1 wt % SiO2 and 8.1 ± 1.5 wt % FeO. The immiscibility could occur at temperatures below 1100°C. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of Doklady Earth Sciences is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1134/S1028334X2208013X
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      – SubjectFull: Melting
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              Text: Aug2022
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