Late Pleistocene Tendürek Volcano (Eastern Anatolia, Turkey): I. Geochronology and petrographic characteristics of igneous rocks


Дәйексөз келтіру

Толық мәтін

Ашық рұқсат Ашық рұқсат
Рұқсат жабық Рұқсат берілді
Рұқсат жабық Тек жазылушылар үшін

Аннотация

The series of two papers presents a comprehensive isotope-geochronological and petrological-geochemical study of the Late Quaternary Tendürek Volcano (Eastern Turkey), one of the greatest volcanoes within the Caucasian—Eastern Anatolian segment of the Alpine foldbelt. The first article discusses the results of chronostratigraphic reconstruction and provides the main petrographic characteristics of the Tendürek’s igneous rocks. The K-Ar dating results show that the magmatic activity of the Tendürek Volcano developed in the Late Pleistocene time, over the period of the last 250 thousand years. Five discrete phases (I—250–200 ka, II—200–150 ka, III—150–100 ka, IV—100–70 ka, and V—<50 ka) of the youngest magmatism were identified in this study. The first two phases were represented by the fissure eruptions of alkaline basic lavas and subsequent formation of vast lava plateaus, the Çaldıran and Doğubeyazıt plains. In the following phases, the intermediate and moderately-acid volcanic rocks of mildly-alkaline or alkaline series started to dominate among the eruption products. According to their petrographic characteristics, the rocks of Tendürek Volcano are assigned to the alkaline association with Na-specifics (hawaiites-mugearites-benmoreites). The available geological, isotope-geochronological, and geomorphological data suggest that the Tendürek Volcano is potentially active. Nowadays, Tendürek reaches the caldera stage of its development.

Авторлар туралы

V. Lebedev

Institute of Geology of Ore Deposits, Petrography, Mineralogy and Geochemistry

Хат алмасуға жауапты Автор.
Email: leb@igem.ru
Ресей, Staromonetny per., 35, Moscow, 119017

E. Sharkov

Institute of Geology of Ore Deposits, Petrography, Mineralogy and Geochemistry

Email: leb@igem.ru
Ресей, Staromonetny per., 35, Moscow, 119017

E. Ünal

Faculty of Architecture and Engineering, Department of Geological Engineering, Zeve Campus

Email: leb@igem.ru
Түркия, Van, 65080

M. Keskin

Faculty of Engineering, Department of Geological Engineering, Avcilar

Email: leb@igem.ru
Түркия, Istanbul, 34320

Қосымша файлдар

Қосымша файлдар
Әрекет
1. JATS XML

© Pleiades Publishing, Ltd., 2016