Extensional deformations during neogene chain building in Sicily

Pietro Renda, Pietro Renda, Rocco Favara, Fabrizio Nigro

Risultato della ricerca: Article

Abstract

ABSTRACT In the Madonie-Nebrodi Mts (Northern Sicily belt) both Mesozoic carbonate platform/basin-derived deformed successions and Neogene foredeep deposits outcrop. Thrust sheets piled-up southwards in thin-skin piggy-back sequence. The chain building process began during the Oligo-Miocene. The syntectonic deposits involved in the compressional tectonics give evidence that syn-sedimentary extensional faults developed during fold nucleation and amplification. Syn-sedimentary extensional faults affect the foredeep strata at different stratigraphic levels, which are bounded by unconformities. Normal faults and bedding show constant cut-off relationships and are progressively tilted youngwards as the effect of thrust-related folding. Since their formation, these normal faults have locally interacted with the thrust geometry by means of positive inversion within the older strata and with physically connected to reverse faults crosscutting the succession youngwards.
Lingua originaleEnglish
pagine (da-a)195-206
Numero di pagine12
RivistaItalian Journal of Geosciences
Volume129
Stato di pubblicazionePublished - 2010

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Neogene
thrust
forearc basin
normal fault
reverse fault
carbonate platform
unconformity
nucleation
folding
skin
amplification
outcrop
Miocene
fold
geometry
tectonics
basin
inversion
effect

All Science Journal Classification (ASJC) codes

  • Geology
  • Earth and Planetary Sciences(all)

Cita questo

Extensional deformations during neogene chain building in Sicily. / Renda, Pietro; Renda, Pietro; Favara, Rocco; Nigro, Fabrizio.

In: Italian Journal of Geosciences, Vol. 129, 2010, pag. 195-206.

Risultato della ricerca: Article

Renda, P, Renda, P, Favara, R & Nigro, F 2010, 'Extensional deformations during neogene chain building in Sicily', Italian Journal of Geosciences, vol. 129, pagg. 195-206.
Renda, Pietro ; Renda, Pietro ; Favara, Rocco ; Nigro, Fabrizio. / Extensional deformations during neogene chain building in Sicily. In: Italian Journal of Geosciences. 2010 ; Vol. 129. pagg. 195-206.
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AB - ABSTRACT In the Madonie-Nebrodi Mts (Northern Sicily belt) both Mesozoic carbonate platform/basin-derived deformed successions and Neogene foredeep deposits outcrop. Thrust sheets piled-up southwards in thin-skin piggy-back sequence. The chain building process began during the Oligo-Miocene. The syntectonic deposits involved in the compressional tectonics give evidence that syn-sedimentary extensional faults developed during fold nucleation and amplification. Syn-sedimentary extensional faults affect the foredeep strata at different stratigraphic levels, which are bounded by unconformities. Normal faults and bedding show constant cut-off relationships and are progressively tilted youngwards as the effect of thrust-related folding. Since their formation, these normal faults have locally interacted with the thrust geometry by means of positive inversion within the older strata and with physically connected to reverse faults crosscutting the succession youngwards.

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