Publication Date:
2017-04-04
Description:
The tectonic escarpments locally known as ‘Timpe’ cut a large sector of the eastern flank of Etna, and allow an
ancient volcanic succession dating back to 225 ka to be exposed. Geological and volcanological investigations carried
out on this succession have allowed us to recognize relevant angular unconformities and volcanic features which are
the remnants of eruptive fissures, as well as important changes in the nature, composition and magmatic affinity of
the exposed volcanics. In particular, the recognition in the lower part of the succession of important and unequivocal
evidence of ancient eruptive fissures led us to propose a local origin for these volcanics and to revise previous
interpretations which attributed their westward-dipping to the progressive tectonic tilting of strata. These elements led
us to reinterpret the main features of the volcanic activity occurring since 250 ka BP and their relationship with
tectonic structures active in the eastern flank of Etna. We propose a complex paleo-environmental and volcanotectonic
evolution of the southeastern flank of Mt. Etna, in which the Timpe fault system played the role of the
crustal structure that allowed the rise and eruption of magmas in the above considered time span.
Description:
Published
Description:
289-306
Description:
1.5. TTC - Sorveglianza dell'attività eruttiva dei vulcani
Description:
3.5. Geologia e storia dei sistemi vulcanici
Description:
3.6. Fisica del vulcanismo
Description:
JCR Journal
Description:
reserved
Keywords:
Mount Etna
;
tectonics
;
fisssure eruptions
;
columnar basalt
;
fault escarpment
;
xenoliths
;
04. Solid Earth::04.04. Geology::04.04.99. General or miscellaneous
;
04. Solid Earth::04.04. Geology::04.04.03. Geomorphology
;
04. Solid Earth::04.04. Geology::04.04.05. Mineralogy and petrology
;
04. Solid Earth::04.04. Geology::04.04.06. Rheology, friction, and structure of fault zones
;
04. Solid Earth::04.04. Geology::04.04.07. Rock geochemistry
;
04. Solid Earth::04.04. Geology::04.04.09. Structural geology
;
04. Solid Earth::04.04. Geology::04.04.10. Stratigraphy
;
04. Solid Earth::04.04. Geology::04.04.11. Instruments and techniques
;
04. Solid Earth::04.07. Tectonophysics::04.07.99. General or miscellaneous
;
04. Solid Earth::04.07. Tectonophysics::04.07.02. Geodynamics
;
04. Solid Earth::04.07. Tectonophysics::04.07.04. Plate boundaries, motion, and tectonics
;
04. Solid Earth::04.07. Tectonophysics::04.07.05. Stress
;
04. Solid Earth::04.07. Tectonophysics::04.07.07. Tectonics
;
04. Solid Earth::04.08. Volcanology::04.08.99. General or miscellaneous
;
04. Solid Earth::04.08. Volcanology::04.08.01. Gases
;
04. Solid Earth::04.08. Volcanology::04.08.03. Magmas
;
04. Solid Earth::04.08. Volcanology::04.08.05. Volcanic rocks
;
04. Solid Earth::04.08. Volcanology::04.08.06. Volcano monitoring
;
04. Solid Earth::04.08. Volcanology::04.08.07. Instruments and techniques
;
04. Solid Earth::04.08. Volcanology::04.08.08. Volcanic risk
;
05. General::05.02. Data dissemination::05.02.03. Volcanic eruptions
Repository Name:
Istituto Nazionale di Geofisica e Vulcanologia (INGV)
Type:
article
