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首页> 外文期刊>Journal of Volcanology and Geothermal Research2012V243-244NOCT,15 >Telkibanya lava domes: Lithofacies architecture of a Miocene rhyolite field (Tokaj Mountains, Carpathian-Pannonian region, Hungary)
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Telkibanya lava domes: Lithofacies architecture of a Miocene rhyolite field (Tokaj Mountains, Carpathian-Pannonian region, Hungary)

机译:Telkibanya熔岩穹顶:中新世流纹岩场(托卡伊山脉,喀尔巴阡山脉-潘诺尼亚地区,匈牙利)的岩相结构

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This work focuses on the Miocene Telkibanya Lava Dome Field (Tokaj Mountains, Hungary), proposed as an example of poorly investigated lithofacies architecture of old silicic lava dome fields. A detailed fieldwork, combined with petrographic and radiometric (K/Ar dating) analyses, allows us the redefinition of the volcano-stratigraphy of a 25 km(2) area, and the recognition of two temporary different generation of domes that grew in a subaerial environment. 12 cohesive and autoclastic lithofacies are identified and grouped together to document the internal variability of the domes, as well as the erosional phases that affected the lithofacies architecture. Furthermore, stratigraphy, lithofacies association and morphology allow recognizing the areal distribution of 5 lithosomes (lava flows, coulees or domes). All these findings represent a major breakthrough in the identification and interpretation of the volcanic processes that control the growth of silicic lava domes and their products in Late Miocene environment of Carpathian Pannonian region. (C) 2019 Elsevier B.V.
机译:这项工作的重点是中新世的Telkibanya熔岩圆顶田(匈牙利,托卡伊山脉),被提议作为对旧硅质熔岩圆顶田的岩相结构进行研究不足的一个例子。详细的野外工作,结合岩石学和放射学(K / Ar定年)分析,使我们能够重新定义25 km(2)区域的火山地层,并认识到在地下产生的两个暂时不同的穹顶环境。确定了12个粘性和自碎屑岩相并将其组合在一起,以记录穹顶的内部变化以及影响岩相构造的侵蚀阶段。此外,地层学,岩相学和形态学使得可以识别5个岩石小体(熔岩流,小丘或穹顶)的面积分布。所有这些发现都代表了喀尔巴阡山脉盘古隆世晚期中新世环境下控制硅质熔岩穹顶及其产物生长的火山过程的识别和解释方面的重大突破。 (C)2019 Elsevier B.V.

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