FIRST DISCOVERY OF MIDDLE TOURNAISIAN CONODONTS IN THE GRIOTTE-TYPE NODULAR PELAGIC LIMESTONES, ISTANBUL AREA, NW TURKEY
The uppermost layers of the Ayineburnu member of the Büyükada Formation in the Istanbul-Gebze area are represented by Griotte-type pelagic nodular limestones. They yielded conodont elements (Bispathodus stabilis and Siphonodella lobata) that can identify the interval from the upper part of the sandb...
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| Format: | Article |
| Language: | English |
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Milano University Press
2004-07-01
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| Series: | Rivista Italiana di Paleontologia e Stratigrafia |
| Online Access: | https://riviste.unimi.it/index.php/RIPS/article/view/5815 |
| _version_ | 1797766265970884608 |
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| author | M. CEMAL GÖNCÜOGLU ILIANA BONCHEVA YAKUT GÖNCÜOGLU |
| author_facet | M. CEMAL GÖNCÜOGLU ILIANA BONCHEVA YAKUT GÖNCÜOGLU |
| author_sort | M. CEMAL GÖNCÜOGLU |
| collection | DOAJ |
| description | The uppermost layers of the Ayineburnu member of the Büyükada Formation in the Istanbul-Gebze area are represented by Griotte-type pelagic nodular limestones. They yielded conodont elements (Bispathodus stabilis and Siphonodella lobata) that can identify the interval from the upper part of the sandbergi Zone through the isosticha- Upper crenulata Zone - middle Tournaisian - Early Carboniferous. This is the first middle Tournaisian conodont record published from an autochthonous succession in the Istanbul Terrane, NW Turkey. This level characterizes the very last carbonate deposition and is followed by lydites and black siliceous shales and finally by the accumulation of flysch-type deposits during the late Tournaisian and early Visean, that mark the onset of Variscan events to the north of the Istanbul Terrane. A correlation with the Lower Carboniferous successions in the easterly-located Zonguldak area suggests that Istanbul and Zonguldak terranes were in quite different palaeogeographic positions during this time interval. |
| first_indexed | 2024-03-12T20:21:49Z |
| format | Article |
| id | doaj.art-c745ad32d04b45219d33f45326ae586a |
| institution | Directory Open Access Journal |
| issn | 0035-6883 2039-4942 |
| language | English |
| last_indexed | 2024-03-12T20:21:49Z |
| publishDate | 2004-07-01 |
| publisher | Milano University Press |
| record_format | Article |
| series | Rivista Italiana di Paleontologia e Stratigrafia |
| spelling | doaj.art-c745ad32d04b45219d33f45326ae586a2023-08-02T00:52:34ZengMilano University PressRivista Italiana di Paleontologia e Stratigrafia0035-68832039-49422004-07-01110210.13130/2039-4942/58155131FIRST DISCOVERY OF MIDDLE TOURNAISIAN CONODONTS IN THE GRIOTTE-TYPE NODULAR PELAGIC LIMESTONES, ISTANBUL AREA, NW TURKEYM. CEMAL GÖNCÜOGLUILIANA BONCHEVAYAKUT GÖNCÜOGLUThe uppermost layers of the Ayineburnu member of the Büyükada Formation in the Istanbul-Gebze area are represented by Griotte-type pelagic nodular limestones. They yielded conodont elements (Bispathodus stabilis and Siphonodella lobata) that can identify the interval from the upper part of the sandbergi Zone through the isosticha- Upper crenulata Zone - middle Tournaisian - Early Carboniferous. This is the first middle Tournaisian conodont record published from an autochthonous succession in the Istanbul Terrane, NW Turkey. This level characterizes the very last carbonate deposition and is followed by lydites and black siliceous shales and finally by the accumulation of flysch-type deposits during the late Tournaisian and early Visean, that mark the onset of Variscan events to the north of the Istanbul Terrane. A correlation with the Lower Carboniferous successions in the easterly-located Zonguldak area suggests that Istanbul and Zonguldak terranes were in quite different palaeogeographic positions during this time interval.https://riviste.unimi.it/index.php/RIPS/article/view/5815 |
| spellingShingle | M. CEMAL GÖNCÜOGLU ILIANA BONCHEVA YAKUT GÖNCÜOGLU FIRST DISCOVERY OF MIDDLE TOURNAISIAN CONODONTS IN THE GRIOTTE-TYPE NODULAR PELAGIC LIMESTONES, ISTANBUL AREA, NW TURKEY Rivista Italiana di Paleontologia e Stratigrafia |
| title | FIRST DISCOVERY OF MIDDLE TOURNAISIAN CONODONTS IN THE GRIOTTE-TYPE NODULAR PELAGIC LIMESTONES, ISTANBUL AREA, NW TURKEY |
| title_full | FIRST DISCOVERY OF MIDDLE TOURNAISIAN CONODONTS IN THE GRIOTTE-TYPE NODULAR PELAGIC LIMESTONES, ISTANBUL AREA, NW TURKEY |
| title_fullStr | FIRST DISCOVERY OF MIDDLE TOURNAISIAN CONODONTS IN THE GRIOTTE-TYPE NODULAR PELAGIC LIMESTONES, ISTANBUL AREA, NW TURKEY |
| title_full_unstemmed | FIRST DISCOVERY OF MIDDLE TOURNAISIAN CONODONTS IN THE GRIOTTE-TYPE NODULAR PELAGIC LIMESTONES, ISTANBUL AREA, NW TURKEY |
| title_short | FIRST DISCOVERY OF MIDDLE TOURNAISIAN CONODONTS IN THE GRIOTTE-TYPE NODULAR PELAGIC LIMESTONES, ISTANBUL AREA, NW TURKEY |
| title_sort | first discovery of middle tournaisian conodonts in the griotte type nodular pelagic limestones istanbul area nw turkey |
| url | https://riviste.unimi.it/index.php/RIPS/article/view/5815 |
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