EVOLUTIONARY MODEL OF THE MELIATA BLUESCHISTS
The Meliata blueschists are subdivided into four groups which are characterized by different litholo-gies and metamorphic histories: (1) Marbles, intercalated with metabasalts and glaucophane-bearing phyllites. Phengite from this group metabasalts and phyllites records the Middle Jurassic age which...
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| Format: | Article |
| Language: | English |
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Technical University of Kosice
1997-10-01
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| Series: | Acta Montanistica Slovaca |
| Online Access: | http://actamont.tuke.sk/pdf/1997/n5/8faryad1.pdf |
| _version_ | 1811317901799456768 |
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| author | Shah Wali Faryad |
| author_facet | Shah Wali Faryad |
| author_sort | Shah Wali Faryad |
| collection | DOAJ |
| description | The Meliata blueschists are subdivided into four groups which are characterized by different litholo-gies and metamorphic histories: (1) Marbles, intercalated with metabasalts and glaucophane-bearing phyllites. Phengite from this group metabasalts and phyllites records the Middle Jurassic age which is interpreted to date the high-pressure metamorphism; (2) Metabasites and micaschists, devoid of marbles contain relic muscovite and newly formed high-Si phengite. The relic muscovite gives Palaeozoic age; (3) Quartz phyllites indicate a polyphase evolution characterized by greenschist facies metamorphism followed by blueschist-facies over-print; the high-Si micas provide evidence of an early Middle Jurassic age of the high-pressure metamorphism; (4) Amphibolite-facies slices and blocks, overprinted by blueschist-facies metamorphism, represent old base-ment rocks. Lithological and metamorphic characteristics together with radiogenic ages of high-pressure micas indicate a subduction of a continental wedge prior to that of oceanic crust can be assumed. |
| first_indexed | 2024-04-13T12:16:28Z |
| format | Article |
| id | doaj.art-a35e851a07744ff5a9a86933f2935720 |
| institution | Directory Open Access Journal |
| issn | 1335-1788 |
| language | English |
| last_indexed | 2024-04-13T12:16:28Z |
| publishDate | 1997-10-01 |
| publisher | Technical University of Kosice |
| record_format | Article |
| series | Acta Montanistica Slovaca |
| spelling | doaj.art-a35e851a07744ff5a9a86933f29357202022-12-22T02:47:21ZengTechnical University of KosiceActa Montanistica Slovaca1335-17881997-10-012special issue 12731EVOLUTIONARY MODEL OF THE MELIATA BLUESCHISTSShah Wali FaryadThe Meliata blueschists are subdivided into four groups which are characterized by different litholo-gies and metamorphic histories: (1) Marbles, intercalated with metabasalts and glaucophane-bearing phyllites. Phengite from this group metabasalts and phyllites records the Middle Jurassic age which is interpreted to date the high-pressure metamorphism; (2) Metabasites and micaschists, devoid of marbles contain relic muscovite and newly formed high-Si phengite. The relic muscovite gives Palaeozoic age; (3) Quartz phyllites indicate a polyphase evolution characterized by greenschist facies metamorphism followed by blueschist-facies over-print; the high-Si micas provide evidence of an early Middle Jurassic age of the high-pressure metamorphism; (4) Amphibolite-facies slices and blocks, overprinted by blueschist-facies metamorphism, represent old base-ment rocks. Lithological and metamorphic characteristics together with radiogenic ages of high-pressure micas indicate a subduction of a continental wedge prior to that of oceanic crust can be assumed.http://actamont.tuke.sk/pdf/1997/n5/8faryad1.pdf |
| spellingShingle | Shah Wali Faryad EVOLUTIONARY MODEL OF THE MELIATA BLUESCHISTS Acta Montanistica Slovaca |
| title | EVOLUTIONARY MODEL OF THE MELIATA BLUESCHISTS |
| title_full | EVOLUTIONARY MODEL OF THE MELIATA BLUESCHISTS |
| title_fullStr | EVOLUTIONARY MODEL OF THE MELIATA BLUESCHISTS |
| title_full_unstemmed | EVOLUTIONARY MODEL OF THE MELIATA BLUESCHISTS |
| title_short | EVOLUTIONARY MODEL OF THE MELIATA BLUESCHISTS |
| title_sort | evolutionary model of the meliata blueschists |
| url | http://actamont.tuke.sk/pdf/1997/n5/8faryad1.pdf |
| work_keys_str_mv | AT shahwalifaryad evolutionarymodelofthemeliatablueschists |