A new geological map of Stromboli (southern Italy) at 1:10,000 scale is performed by adopting a modern stratigraphic approach based on lithostratigraphic units (rock types), lithosomes (landforms eruptive centres) and unconformity-bounded units (correlations). The eruptive, structural and magmatic history of Stromboli is described as a result of six major constructional stages (eruptive epochs) separated by periods of quiescence, erosion and volcano-tectonic collapses (calderas and lateral collapses). The epochs of activity are characterized by distinctive compositional features of the erupted products, ranging from the calc-alkaline to potassic, through high-K calcalkaline and shoshonitic series. Insights on hazard assessment are provided by stressing the role played by recurrent lateral collapses in controlling the location of eruptive vents and activity through time. A number of eccentric eruptive fissures are recognized along the NE and W flanks of Stromboli during the Holocene, together with a detailed mapping of the most recent lava flows from summit vents and fissures along Sciara del Fuoco and the distribution of the major paroxysmal spatter deposits. Moreover, a (chrono)stratigraphy of the Recent Stromboli units and information on the onset of the Present-day activity of Stromboli are provided.
Lucchi F., Keller J., De Astis G., Francalanci L., Tranne C.A. (2014). New geological mapping of Stromboli, scale 1:10 000 (southern Italy) as a tool for hazard assessment.
New geological mapping of Stromboli, scale 1:10 000 (southern Italy) as a tool for hazard assessment
LUCCHI, FEDERICO;TRANNE, CLAUDIO ANTONIO
2014
Abstract
A new geological map of Stromboli (southern Italy) at 1:10,000 scale is performed by adopting a modern stratigraphic approach based on lithostratigraphic units (rock types), lithosomes (landforms eruptive centres) and unconformity-bounded units (correlations). The eruptive, structural and magmatic history of Stromboli is described as a result of six major constructional stages (eruptive epochs) separated by periods of quiescence, erosion and volcano-tectonic collapses (calderas and lateral collapses). The epochs of activity are characterized by distinctive compositional features of the erupted products, ranging from the calc-alkaline to potassic, through high-K calcalkaline and shoshonitic series. Insights on hazard assessment are provided by stressing the role played by recurrent lateral collapses in controlling the location of eruptive vents and activity through time. A number of eccentric eruptive fissures are recognized along the NE and W flanks of Stromboli during the Holocene, together with a detailed mapping of the most recent lava flows from summit vents and fissures along Sciara del Fuoco and the distribution of the major paroxysmal spatter deposits. Moreover, a (chrono)stratigraphy of the Recent Stromboli units and information on the onset of the Present-day activity of Stromboli are provided.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
