Tectonostratigraphic characteristics of the area between Çayeli (Rize) and İspir (Erzurum)
| Autor: | Mustafa Soyakil, Hasan Elibol, Alican Kop, Sedat Arman, Veli Balci, Halil Keskin, İbrahim Altun, Nevzat Böke, Hünkar Demirbağ, İsmet Alan, Nurullah Hanilçi |
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| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Eastern pontides
Mühendislik 0211 other engineering and technologies Magmatism Geology 02 engineering and technology 010502 geochemistry & geophysics Geotechnical Engineering and Engineering Geology 01 natural sciences Engineering Taşköprü tectonic slice Tectono-stratigraphy Eastern pontides Maçka tectonic slice Taşköprü tectonic slice tectono- stratigraphy magmatism Maçka tectonic slice 021101 geological & geomatics engineering 0105 earth and related environmental sciences |
| Zdroj: | Volume: 158, Issue: 158 1-29 Bulletin of the Mineral Research and Exploration |
| ISSN: | 0026-4563 |
| Popis: | The study area is located in the Eastern Pontides between Rize, Çayeli, Arhavi, İspir and İkizdere. In this area, Maçka Tectonic Slice (MTS) and Taşköprü Tectonic Slice (TTS) are exposed. MTS is composed from old to young; Late Jurassic-Early Cretaceous limestone (Berdiga fm.); Turonian-Santonian conglomerate, sandstone, micritic limestone, siltstone, marl, basaltic, basaltic-andesitic lava, pyroclastites (Çatak fm.); Santonian rhyolitic, dacitic lava, pyroclastites, sandstone, clayey limestone (Kızılkaya fm.); late Santonian-Campanian basaltic, andesitic lava, pyroclastites, sandstone, clayey limestone (Cağlayan fm.); Campanian-Mastrihtian rhyolitic, dacitic lava, pyroclastites, sandstone, clayey limestone (Çayırbağ fm.);late Maastrichtian-Danian sandstone, claystone, tuff, marl, clayey limestone (Cankurtaran fm.). Sedimentary, volcanosedimentary units in the Late Paleocene-Quaternary range (Erenler, Kaplıca, Melyat, Pazar, Hamidiye formations, and Handüzü, Çağırankaya volcanites) unconformably overlies the MTS. In the study area, Turonian-Maastrichtian basaltic andesitic lavaş, pyroclastites and sandstone, micritic limestone, claystone units (Yağmurdere fm.) belonging to TTS are observed, and Early-Middle Eocene sedimentary and volcanosedimentary units (Yedigöze, Çoruh formations) unconformably overlies the TTS. According to Ar/Ar dating, Çayırbağ formation was determined as 83.2 ± 1.0 Ma, Melyat formation as 47.8 ± 1.6 Ma, and Handüzü volcanics as 4.25 ± 0.55 Ma for andesite level and as 3.93 ± 0.46 Ma for dacite level. The MTS was intruded by Cretaceous-Paleocene Kaçkar granitoid I, Eocene Kaçkar granitoid II, Late Eocene Ardeşen gabbro, while the TTS was intruded by Cretaceous-Paleocene Kaçkar granitoid-I, Late Eocene Güllübağ monzonite. © 2019 General Directorate of Mineral Research and Exploration (MTA). All rights reserved. Mount Allison University This article consists of the studies carried out within scope of the project titled as ?Geology of the Area between ?ayeli (Rize) - ?spir (Erzurum)? conducted by the Department of Geological Researches, MTA Directorate General. We would like to thank to paleontologists Dr. Burcu Co?kun Tunaboylu, Dr. Birkan Alan, Dilek Tokatl?, Ay?eg?l Ayd?n, F?sun Danac? and to petrograph Meltem Kad?nk?z who described the samples collected in the field study during this work. |
| Databáze: | OpenAIRE |
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