DOI: 10.1016/j.tecto.2021.228943
论文题名: Subduction related faults and sedimentary basins: The Western Ionian Sea case
作者: Proietti G. ; Conti A. ; Cuffaro M. ; Esestime P. ; Bigi S.
刊名: Tectonophysics
ISSN: 00401951
出版年: 2021
卷: 813 语种: 英语
中文关键词: Active tectonics
; Calabrian Arc
; Sedimentary basin evolution
; STEP (Subduction-Transform-Edge-Propagator) faults
英文关键词: Bathymetry
; Deposition
; Geometry
; Offshore oil well production
; Sedimentology
; Seismology
; Settling tanks
; Depositional setting
; Geological setting
; High resolution bathymetry
; Lateral correlation
; Multi-channel seismic
; Quaternary evolution
; Quaternary sequence
; Subduction-transform edge propagator
; Transform faults
; active fault
; basin evolution
; depositional environment
; geometry
; sedimentary basin
; seismotectonics
; subduction
; unconformity
; Calabrian Arc
; Ionian Sea
; Mediterranean Sea
英文摘要: The Pliocene-Quaternary evolution of the western margin of the Calabrian Arc has been investigated by analysing the configuration and distribution of local sedimentary basins and their relationship with shallow and deep tectonic structures. Research focussed on the evolution of the more recent offshore sedimentary basins located to the east of Sicily, along the Alfeo Fault System, using multichannel seismic lines, high-resolution bathymetry and newly acquired single-channel seismic profiles. The chosen study area encompasses a crustal sector where external thrusts of the Calabrian Arc branch into the Malta Escarpment, and this zone has been interpreted as a Subduction Transform Edge Propagator (STEP) Fault. The Western Ionian Sea is bounded by regional faults that controlled the deposition of the Pliocene-Quaternary sequences and define the present-day bathymetry. In this work we identified four main seismic sequences and three main unconformities in the basins, to better understand the geometry and the depositional setting of the basins. In addition, lateral correlation and 3D reconstruction of the sedimentary basins allows us to establish the direct relationship between the Alfeo Fault System activity and the geometry, the thickness, the evolution and filling phases of the sedimentary basins in this area. Results presented show how the Alfeo Fault drove the development of separate basin depocenters in the early stages of tectonic activity, resulting in a single elongated basin in the latest phases. The inferred fault kinematics, the analysis of displacements along strike and sediment thickening suggest a link with the slab geometry, as occurs in other subduction systems that develop subduction related faults. The results and the method applied in this study can also be applied for the interpretation of similar systems with similar geological settings in other areas of the world. © 2021 Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/170887
Appears in Collections: 气候变化与战略
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作者单位: Dipartimento di Scienze della Terra, Sapienza Università di Roma, Rome, Italy; Istituto di Geologia Ambientale e Geoingegneria – CNR, Rome, Italy; Spectrum Geo Ltd, United Kingdom
Recommended Citation:
Proietti G.,Conti A.,Cuffaro M.,et al. Subduction related faults and sedimentary basins: The Western Ionian Sea case[J]. Tectonophysics,2021-01-01,813