Early Miocene to Quaternary evolution of volcanism and the basin formation in western Anatolia: a review
Early Miocene to Quaternary evolution of volcanism and the basin formation in western Anatolia: a review
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DOI：
10.1016/s0377-0273(98)00050-x
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发表时间：
1998-10-01
影响因子：
2.9
通讯作者：
Aydar, E
中科院分区：
文献类型：
--
作者：
Aydar, E
西安纳托利亚，在很大程度上受伸展构造，见证了广泛的火山活动，早中新世以来。该地区的火山口以陆表火山口、成层火山和单成因火山口为代表，这些火山口与小规模侵入岩（如岩床和岩脉）有关。火山活动以爆发性特征开始，在整个区域产生了一个大的熔结凝灰岩高原，表明地壳伸展事件的开始。这些流纹质岩浆几乎与安纳托利亚西部的花岗岩侵入体同生。熔结凝灰岩与冲积扇和辫状河沉积物大致同时代侵位，在伸展盆地形成之前流过基底岩石。湖相沉积物覆盖在熔结凝灰岩之上。晚中新世-上新世侵位的钾质和超钾质熔岩具层状特征。第四纪火山活动持续，碱性玄武岩形成。(C)1998 Elsevier Science B. V.保留所有权利。
Western Anatolia, largely affected by extensional tectonics, witnessed widespread volcanic activity since the Early Miocene. The volcanic vents of the region are represented by epicontinental calderas, stratovolcanoes and monogenetic vents which are associated with small-scale intrusions as sills and dykes. The volcanic activity began with an explosive character producing a large ignimbritic plateau all over the region, indicating the initiation of the crustal extension event. These rhyolitic magmas are nearly contemporaneous with granitic intrusions in western Anatolia. The ignimbrites, emplaced approximately contemporaneous with alluvial fan and braided river deposits, flowed over the basement rocks prior to extensional basin formation. The lacustrine deposits overlie the ignimbrites. The potassic and ultrapotassic lavas with lamprophyric affinities were emplaced during the Late Miocene-Pliocene. The volcanic activities have continued with alkali basalts during the Quaternary. (C) 1998 Elsevier Science B.V. All rights reserved.