caa a22 4500 60614966X CHVBK 20210128100535.0 cr unu---uuuuu 210128e20150601xx s 000 0 eng 10.1007/s00531-014-1130-6 doi (NATIONALLICENCE)springer-10.1007/s00531-014-1130-6 Accretionary prism-forearc interactions as reflected in the sedimentary fill of southern Thrace Basin (Lemnos Island, NE Greece) [Elektronische Daten] [A. Maravelis, G. Pantopoulos, P. Tserolas, A. Zelilidis] 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. Springer-Verlag Berlin Heidelberg, 2014 Oligocene nationallicence Provenance nationallicence Accretionary prism nationallicence Forearc setting nationallicence Thrace Basin nationallicence Maravelis A. School of Environmental and Life Sciences, University of Newcastle, 2308, Callaghan, NSW, Australia aut Pantopoulos G. Instituto de Geociências, Universidade Federal do Rio Grande do Sul (UFRGS), Campus do Vale Av. Bento Gonçalves 9500, CEP 91501-970, Porto Alegre, Brazil aut Tserolas P. Laboratory of Sedimentology, Department of Geology, University of Patras, Patras, Greece aut Zelilidis A. Laboratory of Sedimentology, Department of Geology, University of Patras, Patras, Greece aut International Journal of Earth Sciences Springer Berlin Heidelberg 104/4(2015-06-01), 1039-1060 1437-3254 104:4<1039 2015 104 531 https://doi.org/10.1007/s00531-014-1130-6 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s00531-014-1130-6 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Maravelis A. School of Environmental and Life Sciences, University of Newcastle, 2308, Callaghan, NSW, Australia aut NATIONALLICENCE 700 1- Pantopoulos G. Instituto de Geociências, Universidade Federal do Rio Grande do Sul (UFRGS), Campus do Vale Av. Bento Gonçalves 9500, CEP 91501-970, Porto Alegre, Brazil aut NATIONALLICENCE 700 1- Tserolas P. Laboratory of Sedimentology, Department of Geology, University of Patras, Patras, Greece aut NATIONALLICENCE 700 1- Zelilidis A. Laboratory of Sedimentology, Department of Geology, University of Patras, Patras, Greece aut NATIONALLICENCE 773 0- International Journal of Earth Sciences Springer Berlin Heidelberg 104/4(2015-06-01), 1039-1060 1437-3254 104:4<1039 2015 104 531