This work critically reviews the Eocene-Oligocene source-to-sink systems accumulatingvolcanogenic sequences in the basins around the Alps. Through the years, these volcanogenicsequences have been correlated to the plutonic bodies along the Periadriatic Fault System, the maintectonic lineament running from West to East within the axis of the belt. Starting from the largeamounts of data present in literature, for the first time we present an integrated 4D model onthe evolution of the sediment pathways that once connected the magmatic sources to the basins.The magmatic systems started to develop during the Eocene in the Alps, supplying detritus to theAdriatic Foredeep. The progradation of volcanogenic sequences in the Northern Alpine ForelandBasin is subsequent and probably was favoured by the migration of the magmatic systems to theNorth and to the West. At around 30 Ma, the Northern Apennine Foredeep also was fed by largevolcanogenic inputs, but the palinspastic reconstruction of the Adriatic Foredeep, together withstratigraphic and petrographic data, allows us to safely exclude the Alps as volcanogenic sources.Beyond the regional case, this review underlines the importance of a solid stratigraphic approach inthe reconstruction of the source-to-sink system evolution of any basin.
Volcanism and Volcanogenic Submarine Sedimentation in the Paleogene Foreland Basins of the Alps
Andrea Di Capua;Gianluca GroppelliUltimo
2021
Abstract
This work critically reviews the Eocene-Oligocene source-to-sink systems accumulatingvolcanogenic sequences in the basins around the Alps. Through the years, these volcanogenicsequences have been correlated to the plutonic bodies along the Periadriatic Fault System, the maintectonic lineament running from West to East within the axis of the belt. Starting from the largeamounts of data present in literature, for the first time we present an integrated 4D model onthe evolution of the sediment pathways that once connected the magmatic sources to the basins.The magmatic systems started to develop during the Eocene in the Alps, supplying detritus to theAdriatic Foredeep. The progradation of volcanogenic sequences in the Northern Alpine ForelandBasin is subsequent and probably was favoured by the migration of the magmatic systems to theNorth and to the West. At around 30 Ma, the Northern Apennine Foredeep also was fed by largevolcanogenic inputs, but the palinspastic reconstruction of the Adriatic Foredeep, together withstratigraphic and petrographic data, allows us to safely exclude the Alps as volcanogenic sources.Beyond the regional case, this review underlines the importance of a solid stratigraphic approach inthe reconstruction of the source-to-sink system evolution of any basin.File | Dimensione | Formato | |
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