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Protolithic age and time of metamorphism of amphibolites from Slasten lithotectonic unit (Southern Pirin Mountains).

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Title: Protolithic age and time of metamorphism of amphibolites from Slasten lithotectonic unit (Southern Pirin Mountains).
Alternate Title: Протолитна възраст и време на метаморфизъм на амфиболитите от Слащенската литотектонска единица (Южен Пирин)
Authors: Macheva, Lyubomirka1 lu_macheva@dir.bg, Machev, Philip2 machev@gea.uni-sofia.bg, Peytcheva, Irena3 ipeytcheva@geology.bas.bg, Plotkina, Julia4 plotkina@yandex.ru, Salnikova, Ekaterina4 katesalnikova@yandex.ru, Stifeeva, Maria4
Source: Review of the Bulgarian Geological Society. 2024, Vol. 85 Issue 2, p183-186. 4p.
Subjects: Sphene, Plagioclase, Amphibolites, Zircon analysis, Uranium-lead dating, Garnet
Abstract: The investigated amphibolites from the Slasten lithotectonic unit are found as a strongly elongated body trending north-south at the eastern slope of the Pirin Mountain, near the village of Ilinden. These rocks are hosted by biotite and biotite-amphibole gneisses, some partially migmatized and containing thin intercalations of marble. The mineral composition is amphibole, plagioclase, epidote, quartz, garnet, pyroxene, titanite, and calcite. P-T conditions of metamorphism are in the range 691-724 °C and 0.74-0.86 GPa. LA-ICP-MS analyses of zircons yield a Middle Triassic (246.4±3.2 Ma) age of formation of these amphibolites. [ABSTRACT FROM AUTHOR]
Copyright of Review of the Bulgarian Geological Society is the property of Bulgarian Geological Society 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.)
Database: Engineering Source
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Header DbId: egs
DbLabel: Engineering Source
An: 181743060
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
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  Label: Title
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  Data: Protolithic age and time of metamorphism of amphibolites from Slasten lithotectonic unit (Southern Pirin Mountains).
– Name: TitleAlt
  Label: Alternate Title
  Group: TiAlt
  Data: Протолитна възраст и време на метаморфизъм на амфиболитите от Слащенската литотектонска единица (Южен Пирин)
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  Data: <searchLink fieldCode="AR" term="%22Macheva%2C+Lyubomirka%22">Macheva, Lyubomirka</searchLink><relatesTo>1</relatesTo><i> lu_macheva@dir.bg</i><br /><searchLink fieldCode="AR" term="%22Machev%2C+Philip%22">Machev, Philip</searchLink><relatesTo>2</relatesTo><i> machev@gea.uni-sofia.bg</i><br /><searchLink fieldCode="AR" term="%22Peytcheva%2C+Irena%22">Peytcheva, Irena</searchLink><relatesTo>3</relatesTo><i> ipeytcheva@geology.bas.bg</i><br /><searchLink fieldCode="AR" term="%22Plotkina%2C+Julia%22">Plotkina, Julia</searchLink><relatesTo>4</relatesTo><i> plotkina@yandex.ru</i><br /><searchLink fieldCode="AR" term="%22Salnikova%2C+Ekaterina%22">Salnikova, Ekaterina</searchLink><relatesTo>4</relatesTo><i> katesalnikova@yandex.ru</i><br /><searchLink fieldCode="AR" term="%22Stifeeva%2C+Maria%22">Stifeeva, Maria</searchLink><relatesTo>4</relatesTo>
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  Data: <searchLink fieldCode="JN" term="%22Review+of+the+Bulgarian+Geological+Society%22">Review of the Bulgarian Geological Society</searchLink>. 2024, Vol. 85 Issue 2, p183-186. 4p.
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  Data: <searchLink fieldCode="DE" term="%22Sphene%22">Sphene</searchLink><br /><searchLink fieldCode="DE" term="%22Plagioclase%22">Plagioclase</searchLink><br /><searchLink fieldCode="DE" term="%22Amphibolites%22">Amphibolites</searchLink><br /><searchLink fieldCode="DE" term="%22Zircon+analysis%22">Zircon analysis</searchLink><br /><searchLink fieldCode="DE" term="%22Uranium-lead+dating%22">Uranium-lead dating</searchLink><br /><searchLink fieldCode="DE" term="%22Garnet%22">Garnet</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: The investigated amphibolites from the Slasten lithotectonic unit are found as a strongly elongated body trending north-south at the eastern slope of the Pirin Mountain, near the village of Ilinden. These rocks are hosted by biotite and biotite-amphibole gneisses, some partially migmatized and containing thin intercalations of marble. The mineral composition is amphibole, plagioclase, epidote, quartz, garnet, pyroxene, titanite, and calcite. P-T conditions of metamorphism are in the range 691-724 °C and 0.74-0.86 GPa. LA-ICP-MS analyses of zircons yield a Middle Triassic (246.4±3.2 Ma) age of formation of these amphibolites. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Review of the Bulgarian Geological Society is the property of Bulgarian Geological Society 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: 10.52215/rev.bgs.2024.85.2.183
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      – Code: eng
        Text: English
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        StartPage: 183
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      – SubjectFull: Sphene
        Type: general
      – SubjectFull: Plagioclase
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      – SubjectFull: Amphibolites
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      – SubjectFull: Zircon analysis
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      – SubjectFull: Uranium-lead dating
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      – SubjectFull: Garnet
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      – TitleFull: Protolithic age and time of metamorphism of amphibolites from Slasten lithotectonic unit (Southern Pirin Mountains).
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            NameFull: Macheva, Lyubomirka
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            NameFull: Plotkina, Julia
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            NameFull: Salnikova, Ekaterina
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              Text: 2024
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