DOI: 10.1007/s00531-014-1130-6
Scopus记录号: 2-s2.0-84929706781
论文题名: Accretionary prism–forearc interactions as reflected in the sedimentary fill of southern Thrace Basin (Lemnos Island, NE Greece)
作者: Maravelis A.G. ; Pantopoulos G. ; Tserolas P. ; Zelilidis A.
刊名: International Journal of Earth Sciences
ISSN: 14373254
出版年: 2015
卷: 104, 期: 4 起始页码: 1039
结束页码: 1060
语种: 英语
英文关键词: Accretionary prism
; Forearc setting
; Oligocene
; Provenance
; Thrace Basin
Scopus关键词: accretionary prism
; basin fill
; deep-sea sediment
; deposition
; felsic rock
; forearc basin
; Oligocene
; provenance
; uplift
; Aegean Islands
; Greece
; Lemnos
; Northern Aegean
; Thrace Basin
英文摘要: Architecture of the well-exposed ancient forearc basin successions of northeast Aegean Sea, Greece, provides useful insights into the interplay between arc magmatism, accretionary prism exhumation, and sedimentary deposition in forearc basins. The upper Eocene–lower Oligocene basin fill of the southern Thrace forearc basin reflects the active influence of the uplifted accretionary prism. Deep-marine sediments predominate the basin fill that eventually shoals upwards into shallow-marine sediments. This trend is related to tectonically driven uplift and compression. Field, stratigraphic, sedimentological, petrographic, geochemical, and provenance data on the lower Oligocene shallow-marine deposits revealed the accretionary prism (i.e. Pindic Cordillera or Biga Peninsula) as the major contributor of sediments into the forearc region. Field investigations in these shallow-marine deposits revealed the occurrence of conglomerates with: (1) mafic and ultramafic igneous rock clasts, (2) low-grade metamorphic rock fragments, and (3) sedimentary rocks. The absence of felsic volcanic fragments rules out influence of a felsic source rock. Geochemical analysis indicates that the studied rocks were accumulated in an active tectonic setting with a sediment source of mainly mafic composition, and palaeodispersal analysis revealed a NE-NNE palaeocurrent trend, towards the Rhodopian magmatic arc. Thus, these combined provenance results make the accretionary prism the most suitable candidate for the detritus forming these shallow-marine deposits. © 2014, Springer-Verlag Berlin Heidelberg. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84929706781&doi=10.1007%2fs00531-014-1130-6&partnerID=40&md5=6135ac0224c6d13fbd8050dd9bced07f
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/70220
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: School of Environmental and Life Sciences, University of Newcastle, Callaghan, NSW, Australia; Instituto de Geociências, Universidade Federal do Rio Grande do Sul (UFRGS), Campus do Vale Av. Bento Gonçalves 9500, Porto Alegre, Brazil; Laboratory of Sedimentology, Department of Geology, University of Patras, Patras, Greece
Recommended Citation:
Maravelis A.G.,Pantopoulos G.,Tserolas P.,et al. Accretionary prism–forearc interactions as reflected in the sedimentary fill of southern Thrace Basin (Lemnos Island, NE Greece)[J]. International Journal of Earth Sciences,2015-01-01,104(4)