DOI: 10.1007/s00531-015-1277-9
Scopus记录号: 2-s2.0-84957557224
论文题名: Geological setting of the southern termination of Western Alps
作者: d’Atri A. ; Piana F. ; Barale L. ; Bertok C. ; Martire L.
刊名: International Journal of Earth Sciences
ISSN: 14373254
出版年: 2016
卷: 105, 期: 6 起始页码: 1831
结束页码: 1858
语种: 英语
英文关键词: Alpine orogen transpression
; Briançonnais
; Maritime Alps
; Pre-Alpine tectonic inheritance
; Provençal and Dauphinois successions
; Western Ligurian Alps
Scopus关键词: Alpine orogeny
; continental margin
; greenschist facies
; shear zone
; strike-slip fault
; tectonic evolution
; tectonic setting
; tectonostratigraphy
; transpression
; Alps
; Argentera Massif
; Italy
; Ligurian Alps
; Maritime Alps
; Western Alps
英文摘要: A revision of the stratigraphic and tectonic setting of the southern termination of the Western Alps, at the junction of the Maritime Alps with the westernmost Ligurian Alps, is proposed. In response to the Alpine kinematic evolution, a number of tectonic units formed on the deformed palaeo-European continental margin and were arranged in a NW–SE striking anastomosed pattern along the north-eastern boundary of the Argentera Massif. Because these tectonic units often cut across the palaeogeographic subdivision of the Alpine literature and show only partial affinity with their distinctive stratigraphic features, new attributions are proposed. The Subbriançonnais domain is here intended as a “deformation zone”, and its tectonic units have been attributed to Dauphinois and Provençal domains; furthermore, the Eocene Alpine Foreland Basin succession has been interpreted, based on the affinity of its lithologic characters and age, as a single feature resting above all the successions of the different Mesozoic domains. The Cretaceous tectono-sedimentary evolution of the studied domains was characterized by intense tectonic controls on sedimentation inducing lateral variations of stratigraphic features and major hydrothermal phenomena. Since the early Oligocene, transpressional tectonics induced a NE–SW shortening, together with significant left-lateral movements followed by (late Oligocene–middle Miocene) right-lateral movements along E–W to SE–NW striking shear zones. This induced the juxtaposition and/or stacking of Briançonnais, Dauphinois and Ligurian tectonic units characterized by different metamorphic histories, from anchizonal to lower greenschist facies. This evolution resulted in the arrangement of the tectonostratigraphic units in a wide “transfer zone” accommodating the Oligocene WNW-ward movement of portions of the palaeo-European margin placed at the south-western termination of Western Alps and the Miocene dextral shearing along SE striking faults that bound the Argentera Massif on its NE side. © 2016, Springer-Verlag Berlin Heidelberg. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84957557224&doi=10.1007%2fs00531-015-1277-9&partnerID=40&md5=c0f6f48910ee2ebf6bf48f2641dafbe6
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/70132
Appears in Collections: 影响、适应和脆弱性 气候减缓与适应
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作者单位: Dipartimento di Scienze della Terra, Università di Torino, via Valperga Caluso 35, Turin, Italy; CNR IGG – Torino, via Valperga Caluso 35, Turin, Italy
Recommended Citation:
d’Atri A.,Piana F.,Barale L.,et al. Geological setting of the southern termination of Western Alps[J]. International Journal of Earth Sciences,2016-01-01,105(6)