Mesozoic tectono-sedimentary evolution of Rocca Busambra in Western Sicily

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Abstract

The Rocca Busambra ridge in western Sicily is a shallow to pelagic Meso-Cenozoic carbonate structural unitof the Sicilian fold and thrust belt with a variety of tectono-sedimentary features. Palaeofaults, unconformities(buttress unconformity, onlap, downlap), a network of neptunian dykes with several infilling generations, severallarge hiatuses, different facies and lateral facies changes, and erosional submarine and subaerial surfaces areobserved.Detailed fieldwork and structural analyses have indicated the occurrence of fault planes with differentorientations. These data, combined with facies studies and physical-stratigraphy analyses, allow for thedistinction of different depositional regions. A lateral change from an open-marine carbonate platform with astepped fault margin (located in the westernmost sector) to a deeper basinal depositional setting in the east, inthe context of an upper slope scalloped margin and base-of-slope systems with talus breccias, is envisagedhere. Extensional to transtensional tectonic pulses punctuated the sedimentary evolution during Early Toarcian,Late Jurassic, Early Cretaceous, Late Cretaceous, and Early Miocene times. The collected data show that mostfault planes have preserved their original orientations throughout the reactivation processes. The reconstructedMeso-Cenozoic tectono-sedimentary evolution is closely related to the late syn-rift and post-rift tectonic evolutionof the Tethyan continental margin.
Lingua originaleEnglish
Pagine427-427
Numero di pagine1
Stato di pubblicazionePublished - 2011

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unconformity
Cretaceous
sedimentary feature
tectonics
Toarcian
talus
fold and thrust belt
carbonate platform
fault plane
reactivation
fieldwork
continental margin
stratigraphy
Jurassic
Miocene
carbonate

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title = "Mesozoic tectono-sedimentary evolution of Rocca Busambra in Western Sicily",
abstract = "The Rocca Busambra ridge in western Sicily is a shallow to pelagic Meso-Cenozoic carbonate structural unitof the Sicilian fold and thrust belt with a variety of tectono-sedimentary features. Palaeofaults, unconformities(buttress unconformity, onlap, downlap), a network of neptunian dykes with several infilling generations, severallarge hiatuses, different facies and lateral facies changes, and erosional submarine and subaerial surfaces areobserved.Detailed fieldwork and structural analyses have indicated the occurrence of fault planes with differentorientations. These data, combined with facies studies and physical-stratigraphy analyses, allow for thedistinction of different depositional regions. A lateral change from an open-marine carbonate platform with astepped fault margin (located in the westernmost sector) to a deeper basinal depositional setting in the east, inthe context of an upper slope scalloped margin and base-of-slope systems with talus breccias, is envisagedhere. Extensional to transtensional tectonic pulses punctuated the sedimentary evolution during Early Toarcian,Late Jurassic, Early Cretaceous, Late Cretaceous, and Early Miocene times. The collected data show that mostfault planes have preserved their original orientations throughout the reactivation processes. The reconstructedMeso-Cenozoic tectono-sedimentary evolution is closely related to the late syn-rift and post-rift tectonic evolutionof the Tethyan continental margin.",
keywords = "Sedimentation and tectonics",
author = "Luca Basilone",
year = "2011",
language = "English",
pages = "427--427",

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TY - CONF

T1 - Mesozoic tectono-sedimentary evolution of Rocca Busambra in Western Sicily

AU - Basilone, Luca

PY - 2011

Y1 - 2011

N2 - The Rocca Busambra ridge in western Sicily is a shallow to pelagic Meso-Cenozoic carbonate structural unitof the Sicilian fold and thrust belt with a variety of tectono-sedimentary features. Palaeofaults, unconformities(buttress unconformity, onlap, downlap), a network of neptunian dykes with several infilling generations, severallarge hiatuses, different facies and lateral facies changes, and erosional submarine and subaerial surfaces areobserved.Detailed fieldwork and structural analyses have indicated the occurrence of fault planes with differentorientations. These data, combined with facies studies and physical-stratigraphy analyses, allow for thedistinction of different depositional regions. A lateral change from an open-marine carbonate platform with astepped fault margin (located in the westernmost sector) to a deeper basinal depositional setting in the east, inthe context of an upper slope scalloped margin and base-of-slope systems with talus breccias, is envisagedhere. Extensional to transtensional tectonic pulses punctuated the sedimentary evolution during Early Toarcian,Late Jurassic, Early Cretaceous, Late Cretaceous, and Early Miocene times. The collected data show that mostfault planes have preserved their original orientations throughout the reactivation processes. The reconstructedMeso-Cenozoic tectono-sedimentary evolution is closely related to the late syn-rift and post-rift tectonic evolutionof the Tethyan continental margin.

AB - The Rocca Busambra ridge in western Sicily is a shallow to pelagic Meso-Cenozoic carbonate structural unitof the Sicilian fold and thrust belt with a variety of tectono-sedimentary features. Palaeofaults, unconformities(buttress unconformity, onlap, downlap), a network of neptunian dykes with several infilling generations, severallarge hiatuses, different facies and lateral facies changes, and erosional submarine and subaerial surfaces areobserved.Detailed fieldwork and structural analyses have indicated the occurrence of fault planes with differentorientations. These data, combined with facies studies and physical-stratigraphy analyses, allow for thedistinction of different depositional regions. A lateral change from an open-marine carbonate platform with astepped fault margin (located in the westernmost sector) to a deeper basinal depositional setting in the east, inthe context of an upper slope scalloped margin and base-of-slope systems with talus breccias, is envisagedhere. Extensional to transtensional tectonic pulses punctuated the sedimentary evolution during Early Toarcian,Late Jurassic, Early Cretaceous, Late Cretaceous, and Early Miocene times. The collected data show that mostfault planes have preserved their original orientations throughout the reactivation processes. The reconstructedMeso-Cenozoic tectono-sedimentary evolution is closely related to the late syn-rift and post-rift tectonic evolutionof the Tethyan continental margin.

KW - Sedimentation and tectonics

UR - http://hdl.handle.net/10447/58435

M3 - Other

SP - 427

EP - 427

ER -