DOI: 10.1016/j.gloplacha.2013.07.003
论文题名: Progressive changes in rifting directions in the Campania margin (Italy): New constrains for the Tyrrhenian Sea opening
作者: Milia A. ; Torrente M.M. ; Massa B. ; Iannace P.
刊名: Global and Planetary Change
ISSN: 0921-8243
出版年: 2013
卷: 109 起始页码: 3
结束页码: 17
语种: 英语
英文关键词: Back-arc basin
; Basin analysis
; Sequence stratigraphy
; Tyrrhenian Sea
Scopus关键词: Back-arc basin
; Basin analysis
; Geological evolution
; Seismic reflections
; Sequence stratigraphy
; Stratigraphic architecture
; Stratigraphic correlation
; Tyrrhenian Sea
; Deposits
; Seismology
; Stratigraphy
; Structural geology
; Faulting
; aggradation
; backarc basin
; basin analysis
; bathyal zone
; borehole
; detachment fault
; GIS
; outcrop
; plate motion
; Pliocene
; Quaternary
; rifting
; seismic reflection
; sequence stratigraphy
; stratigraphic correlation
; syntectonic sediment
; two-dimensional modeling
; Campania [Italy]
; Gulf of Gaeta
; Italy
; Mediterranean Sea
; Sardinia
; Tyrrhenian Coast
; Tyrrhenian Sea
英文摘要: Current models for the opening of the Tyrrhenian Sea invoke a unique extension vector throughout the rift to drift process, accommodated by margin parallel faults, but the role of the Campania margin faults in the opening of the Tyrrhenian back-arc basin is still poorly constrained. Gaeta Bay, located on the Campania margin, was investigated through the interpretation of seismic reflection and borehole data together with a stratigraphic correlation of dated outcropping units. The interpretation of a seismic grid using seismic and sequence stratigraphy and structural geology approaches in a dedicated GIS environment led to the generation of 2-D models of relevant geological surfaces, isochron maps, a 3-D digital model of the subsurface and to the reconstruction of the geological evolution of the margin with a resolution of 100. ka. Gaeta Bay is formed by three basins (northern, central and southern) and features a complex stratigraphic architecture: in the northern and central basins a syn-rift deposit (unit PP) is buried by the oldest aggradational deposit (unit A) that fills the accommodation space; a post 0.7. Ma succession (units B and C) filled the northern basin with a lateral aggradational geometry; a syn-tectonic wedge (unit B) was deposited in the central basin between 0.7 and 0.4. Ma; post 0.4. Ma thick deposits (unit C) are testimony to the collapse of the southern basin. A correlation between the geology of the bathyal basin and that of the Campania margin was established using a CROP seismic section that extended from the Vavilov basin to Gaeta Bay.Based on original and literature data we propose a kinematic evolution of the Tyrrhenian Sea upper plate over the last 10. Ma. This evolution consists of older extensional events (stages 1-2) off Sardinia and in the Vavilov basin (leaving the Campania margin unaffected). Younger events (stages 3-5) developed in the eastern (with a Pliocene-Quaternary change of the extension direction along the Campania Margin) and central Tyrrhenian region.This paper suggests that the Tyrrhenian Sea opening was a polyphase rifting with a migration of activity and a change of style over time (including a period of lithospheric detachment faulting). © 2013 Elsevier B.V. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84881113394&doi=10.1016%2fj.gloplacha.2013.07.003&partnerID=40&md5=813b793a4899b54b4e4e6d494885253b
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/11149
Appears in Collections: 全球变化的国际研究计划
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作者单位: IAMC, CNR, Calata Porta di Massa, Porto di Napoli, I-80100 Naples, Italy
Recommended Citation:
Milia A.,Torrente M.M.,Massa B.,et al. Progressive changes in rifting directions in the Campania margin (Italy): New constrains for the Tyrrhenian Sea opening[J]. Global and Planetary Change,2013-01-01,109.