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Geology of the High Sillaro Valley (Northern Apennines of Italy)
Journal of Maps ( IF 1.9 ) Pub Date : 2020-11-02 , DOI: 10.1080/17445647.2020.1832926
Filippo Panini 1 , Giuseppe Bettelli 1 , Mirko Carlini 2 , Chiara Fioroni 1 , Giuseppe Nirta 3 , Francesca Remitti 1
Affiliation  

ABSTRACT

We map the High Sillaro Valley, in the Northern Apennines of Italy. Here the Ligurian wedge overthrust the foredeep deposits of the Marnoso Arenacea formation – MA. The overthrusting occurred through a shear zone with components derived from the frontal part of the Ligurian wedge and interpreted as a tectonic mélange (Sestola-Vidiciatico Tectonic unit - SVU) here subdivided into two different subunits structurally independent one from the other. In the area, the Visignano chaotic body (VIS) constitutes an intercalation within the Serravallian-Tortonian MA and derives, as the SVU, from the frontal part of the Ligurian wedge. We performed a detailed investigation of the components of the VIS that helps to better define the architecture of the frontal part of the Ligurian wedge and to constrain the timing of the deformation phases affecting this portion of the Northern Apennines during the middle-late Miocene.



中文翻译:

高西拉罗河谷的地质(意大利北部亚平宁山脉)

摘要

我们绘制了意大利北部亚平宁山脉的西拉罗高谷地图。在这里,利古里亚楔形物推翻了马诺索阿雷纳塞亚地层(MA)的深层沉积。上冲作用通过剪切带发生,其成分来自利古里亚楔块的前部,并被解释为构造混杂岩(Sestola-Vidiciatico构造单元-SVU),这里分为两个结构上相互独立的不同子单元。在该地区,Visignano混沌体(VIS)构成了塞拉瓦利亚-托尔托尼亚MA的插层,并从利古里亚楔形的前部衍生为SVU。

更新日期:2020-12-12
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