Abstract
ABSTRACTThis paper presents the results of a geological mapping project across the eastern Simbruini Mts. and the higher Roveto Valley (Central Apennines). The study area belongs to the Latium-Abruzzi Domain, which is characterized by a Cretaceous and Miocene carbonate platform succession followed by a thick upper Miocene terrigenous succession. A unique feature of the study area is the existence of a thick clastic unit, the ‘brecce della Renga fm.’; this unit was produced by the dismantling of the margins of a large pre-orogenic extensional structural high, which rose within the foredeep basin starting in the early Tortonian. Following the Messinian-Pliocene Apennine chain building phase, the area was subjected to post-orogenic Quaternary extension, related to the opening of the Tyrrhenian sea. A geological map on the 1:20,000 scale illustrates the main stratigraphic and structural features of the area.
Highlights
The present paper is supported by a geological map (Main Map) of a sector of the Simbruini Mountains and the higher Roveto Valley (Central Apennines), in the Latium-Abruzzi geological domain (Figure 1)
This paper presents the results of a geological mapping project across the eastern Simbruini Mts. and the higher Roveto Valley (Central Apennines)
A unique feature of the study area is the existence of a thick clastic unit, the ‘brecce della Renga fm.’; this unit was produced by the dismantling of the margins of a large pre-orogenic extensional structural high, which rose within the foredeep basin starting in the early Tortonian
Summary
The present paper is supported by a geological map (Main Map) of a sector of the Simbruini Mountains and the higher Roveto Valley (Central Apennines), in the Latium-Abruzzi geological domain (Figure 1). This is the second of two companion geological maps of the Simbruini Mts., the first (northern Simbruini Mts.) having already been published (Fabbi, 2016). The main differences with the already published geological cartography (Devoto, 1970; Servizio Geologico d’Italia, 1998, 2005) of the area are due to the higher detail of surveying which allowed the accurate mapping of each different lithofacies of the ‘brecce della Renga fm.’, a more detailed representation of the Mesozoic substrate and a reinterpretation of structural features, that were misrepresented or erroneously interpreted in the previous maps
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