SYNTHESIS OF THE TECTONIC-SEDIMENTARY EVOLUTION OF THE MESOZOIC-EARLY CENOZOIC PINDOS OCEAN: EVIDENCE FROM THE NW PELOPONNESE, GREECE
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dc.contributor.author | Degnan P.J. | |
dc.contributor.author | Robertson A.H.F. | |
dc.date.accessioned | 2025-02-16T08:50:17Z | |
dc.date.available | 2025-02-16T08:50:17Z | |
dc.date.issued | 2006 | |
dc.identifier | https://www.elibrary.ru/item.asp?id=31376642 | |
dc.identifier.citation | Geological Society Special Publication, 2006, 260, 260. С. 4, 467-491 | |
dc.identifier.issn | 0305-8719 | |
dc.identifier.uri | https://repository.geologyscience.ru/handle/123456789/47977 | |
dc.description.abstract | The tectonic development of the western part of the Pindos ocean in southern Greece is exemplified by the mountainous Pindos thrust belt in the NW Peloponnese. A Late Triassic-Early Cenozoic succession exposed within imbricate thrust sheets records a range of deep-water siliciclastic, redeposited carbonate and siliceous sediments, which in general become more distal oceanwards towards the east. Igneous rocks, locally dated as Triassic, occur within a mélange that is entrained beneath and within the Pindos thrust stack; these igneous rocks and related sediments are interpreted as remnants of a continent-ocean transition zone. 'Immobile' element geochemistry is explicable by rifting of a compositionally heterogeneous subcontinental mantle, possibly related to pre-existing Hercynian subduction, although coeval Triassic subduction cannot be excluded based on evidence from this area alone. Localized, 'enriched' basalts are interpreted as fragments of oceanic seamounts formed in a relatively distal setting. Late Paleocene-Early Eocene (locally Mid-Eocene) siliciclastic turbidites, derived from the north, record the latest deposition prior to incorporation of the sedimentary succession into a westward-migrating accretionary wedge during post-Early Eocene time in the NW Peloponnese. Structural restoration of the well-ordered thrust stack indicates a minimum of 201 km (55%) of shortening at an average rate of 5.8 mm a-1. As the Pindos allochthon approached the Apulian continent, the Gavrovo-Tripolitza foreland underwent flexural upwarp during the Mid-Eocene, followed by collapse to create a foreland basin by the Late Eocene. This basin was infilled with generally upward-thickening and -coarsening deep-water turbiditic sediments of Late Eocene-Early Oligocene age. The foreland was, in turn, overthrust by the Pindos accretionary prism during post-Early Paleocene time, and was then imbricated and thrust over the Ionian foreland basin to the west by Pliocene time. © The Geological Society of London 2006. | |
dc.subject | Triassic | |
dc.subject | Pliocene | |
dc.subject | Oligocene | |
dc.subject | Eocene | |
dc.subject | Paleocene | |
dc.title | SYNTHESIS OF THE TECTONIC-SEDIMENTARY EVOLUTION OF THE MESOZOIC-EARLY CENOZOIC PINDOS OCEAN: EVIDENCE FROM THE NW PELOPONNESE, GREECE | |
dc.type | Статья | |
dc.identifier.doi | 10.1144/GSL.SP.2006.260.01.19 | |
dc.subject.age | Mesozoic::Triassic | |
dc.subject.age | Мезозой::Триасовая | |
dc.subject.age | Cenozoic::Neogene::Pliocene | |
dc.subject.age | Кайнозой::Неоген::Плиоцен | |
dc.subject.age | Cenozoic::Paleogene::Oligocene | |
dc.subject.age | Кайнозой::Палеоген::Олигоцен | |
dc.subject.age | Cenozoic::Paleogene::Eocene | |
dc.subject.age | Кайнозой::Палеоген::Эоцен | |
dc.subject.age | Cenozoic::Paleogene::Paleocene | |
dc.subject.age | Кайнозой::Палеоген::Палеоцен |
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