High amounts of Chattian-Langhian orogenic magmatism have generated volcaniclastic deposits that are interbedded within the penecontemporaneous sedimentary marine successions in several central-western peri-Mediterranean chains. These deposits are widespread in at least 41 units of different basins located in different geotectonic provinces: (1) the Africa-Adria continental margins (external units), (2) the basinal units resting on oceanic or thinned continental crust of the different branches of the western Tethys, (3) the European Margin (external units), and (4) the Western Sardinia zone (Sardinia Trough units). The emplacement of volcaniclastic material in marine basins was controlled by gravity flows (mainly turbidites; epiclastites) and fallout (pyroclastites). A third type comprises volcaniclastic grains mixed with marine deposits (mixed pyroclastic-epiclastic). Calc-alkaline magmatic activity is characterized by a medium- to high-potassium andesite-dacite-rhyolite suite and is linked to complex geodynamic processes that affected the central-western Mediterranean area in the ∼26 to 15 My range. The space/time distribution of volcaniclastites, together with a paleogeographic reconstructions, provide keys and constraints for a better reconstruction of some geodynamic events. Previous models of the central-western Mediterranean area were examined to compare their compatibility with main paleotectonic and paleogeographic constraints presented by the main results of the study. Despite the complexity of the topic, a preliminary evolutionary model based on the distribution of volcaniclastites and active volcanic systems is proposed.

中文翻译：

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最新的 Chattian-Langhian 中西部近地中海火山-沉积事件的地球动力学影响：综述

大量的 Chattian-Langhian 造山岩浆作用产生了火山碎屑沉积物，这些沉积物夹在几个中西部地中海沿岸链的准同期沉积海相序列中。这些矿床至少分布在位于不同大地构造省的不同盆地的至少 41 个单元中：（1）非洲-亚德里亚大陆边缘（外部单元），（2）位于大洋或大陆不同分支的变薄大陆地壳上的盆地单元。西特提斯，(3) 欧洲边缘（外部单位），和（4）西撒丁岛带（撒丁岛海槽单位）。海相盆地火山碎屑物质的侵位受重力流（主要是浊积岩；上屑岩）和沉降物（火山碎屑岩）的控制。第三种类型包括火山碎屑颗粒与海相沉积物混合（混合火山碎屑-外碎屑）。钙碱性岩浆活动的特征是中到高钾的安山岩-英安岩-流纹岩套件，并与影响地中海中西部约 26 至 15 My 范围的复杂地球动力学过程有关。火山碎屑岩的时空分布以及古地理重建为更好地重建某些地球动力学事件提供了关键和约束。检查了地中海中西部地区以前的模型，以比较它们与主要研究结果所呈现的主要古构造和古地理限制的兼容性。尽管题目复杂，