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6.2 Construction versus destruction processes at volcanic terrains

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Congressi SGI-SIMP

Conveners: Paola Del Carlo (INGV-Pisa), Federico Di Traglia (INGV-OV Napoli), Massimo Pompilio (INGV-Pisa), Matteo Roverato (Università di Bologna)
 
paola.delcarlo@ingv.it
 
Volcanoes are dynamic geomorphological systems where morphogenetic processes are driven by both endogenous and exogenous forces. Eruptive activity typically leads to the accumulation of material, creating non-equilibrium slope and drainage conditions, while gravitational processes primarily redistribute volcaniclastic deposits. Consequently, volcanic landscapes reflect a complex interplay between erosion and the accumulation of volcanic material, influenced—but not exclusively governed—by climatic and tectonic factors.
The emplacement of magma, whether within the crust as intrusions or on the Earth's surface during volcanic eruptions, is a key driver of surface relief changes. These processes operate on temporal and spatial scales that can differ substantially from tectonic forces. Subaerial and marine erosion, as well as gravitational instability phenomena, frequently affect steep volcanic flanks and are often preserved in the marine sedimentary record. Furthermore, interactions with late-Quaternary sea-level fluctuations are evident in specific morphological features on volcanic flanks, such as island platforms and raised marine terraces.
This session invites contributions on volcanic morphology, encompassing studies on the formation and evolution of monogenetic and polygenetic volcanoes. Relevant topics include slope and flank instability processes—such as lahars and volcanic landslides—and their interactions with volcanic plumbing systems, tectonic settings, and climatic conditions.