DOI: 10.1007/s00531-012-0835-7
论文题名: Geodynamic evolution of ophiolites from Albania and Greece (Dinaric-Hellenic belt): One, two, or more oceanic basins?
作者: Bortolotti V. ; Chiari M. ; Marroni M. ; Pandolfi L. ; Principi G. ; Saccani E.
刊名: International Journal of Earth Sciences
出版年: 2013
卷: 102, 期: 3 起始页码: 783
结束页码: 811
语种: 英语
英文关键词: Albania
; Back-arc
; Greece
; Jurassic
; Obduction
; Ophiolites
; Supra-subduction
; Triassic
Scopus关键词: backarc basin
; continental margin
; Cretaceous
; geodynamics
; island arc
; Jurassic
; obduction
; ophiolite
; subduction
; tectonic evolution
; tectonic setting
; Triassic
; Albania
; Greece
; Soleidae
英文摘要: All the geological constraints for an exhaustive reconstruction of the Triassic to Tertiary tectonic history of the southern Dinaric-Hellenic belt can be found in Albania and Greece. This article aims to schematically reconstruct this long tectonic evolution primarily based on a detailed analysis of the tectonic setting, the stratigraphy, the geochemistry, and the age of the ophiolites. In contrast to what was previously reported in the literature, we propose a new subdivision on a regional scale of the ophiolite complexes cropping out in Albania and Greece. This new subdivision includes six types of ophiolite occurrences, each corresponding to different tectonic units derived from a single obducted sheet. These units are represented by: (1) sub-ophiolite mélange, (2) Triassic ocean-floor ophiolites, (3) metamorphic soles, (4) Jurassic fore-arc ophiolites, (5) Jurassic intra-oceanic-arc ophiolites, and (6) Jurassic back-arc basin ophiolites. The overall features of these ophiolites are coherent with the existence of a single, though composite, oceanic basin located east of the Adria/Pelagonian continental margin. This oceanic basin was originated during the Middle Triassic and was subsequently (Early Jurassic) affected by an east-dipping intra-oceanic subduction. This subduction was responsible for the birth of intra-oceanic-arc and back-arc oceanic basins separated by a continental volcanic arc during the Early to Middle Jurassic. From the uppermost Middle Jurassic to the Early Cretaceous, an obduction developed, during which the ophiolites were thrust westwards firstly onto the neighboring oceanic lithosphere and then onto the Adria margin. © 2012 Springer-Verlag Berlin Heidelberg. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84875403729&doi=10.1007%2fs00531-012-0835-7&partnerID=40&md5=834faea4bf6aa72f3951c607ceb7b893
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/70605
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 Pisa, Via S. Maria, 53, 56126 Pisa, Italy; Istituto di Geoscienze e Georisorse, CNR, Via Moruzzi, 1, 56124 Pisa, Italy; Dipartimento di Scienze della Terra, Università di Firenze, Via La Pira, 4, 50121 Florence, Italy; Istitutito di Geoscienze e Georisorse, CNR, Via La Pira, 4, 50121 Florence, Italy; Dipartimento di Scienze della Terra, Università di Ferrara, Via Saragat 1, 44100 Ferrara, Italy
Recommended Citation:
Bortolotti V.,Chiari M.,Marroni M.,et al. Geodynamic evolution of ophiolites from Albania and Greece (Dinaric-Hellenic belt): One, two, or more oceanic basins?[J]. International Journal of Earth Sciences,2013-01-01,102(3)