globalchange  > 影响、适应和脆弱性
DOI: 10.1007/s00531-014-1036-3
Scopus记录号: 2-s2.0-84939875337
论文题名:
Stratigraphy and tectonics of a time-transgressive ophiolite obduction onto the eastern margin of the Pelagonian platform from Late Bathonian until Valanginian time, exemplified in northern Evvoia, Greece
作者: Scherreiks R.; Meléndez G.; BouDagher-Fadel M.; Fermeli G.; Bosence D.
刊名: International Journal of Earth Sciences
ISSN: 14373254
出版年: 2014
卷: 103, 期:8
起始页码: 2191
结束页码: 2216
语种: 英语
英文关键词: Basement uplift ; Callovian gap ; Late bathonian obduction ; Oxfordian transgression ; Plate rollback ; Tectono-sedimentary mélange
英文摘要: The obduction of an ophiolite sheet onto the eastern Pelagonian carbonate platform complex of the Hellenides began during the Late Bathonian and ended with the final emplacement of the ophiolite during Valanginian time. The early stages of obduction caused subaerial exposure of the platform, recorded by an unconformity of Callovian age, which is marked by laterites overlying folded and faulted, karstic substrates. The laterites have distinct ophiolitic geochemical signatures, indicating that emergent ophiolite had been undergoing lateritic weathering. This unconformity coincides with widespread western Tethyan, Callovian gaps, indicating that the obduction in the Hellenides was probably related to far-reaching plate tectonic processes. Resumed gravitational pull and rollback of the subducted, oceanic leading edge of the temporarily exposed ophiolite. Platform drowning continued into Tithonian–Valanginian time, documented initially by reefal carbonates and then by below-CCD, carbonate-free radiolarian cherts and shales. Subsequently, siliciclastic turbidites, which apparently originated from uplifted Variscan basement, were deposited together with and over the radiolarite as the ophiolite nappe sheet advanced. The nappe substrate underwent tectonic deformations of varying intensity, while polymictic mélange and syntectonic sedimentary debris accreted beneath the ophiolite and at the nappe front. The provenience of the ophiolite nappe complexes of northern Evvoia most probably has to be looked for in the Vardar ocean. © 2014, Springer-Verlag Berlin Heidelberg.
URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84939875337&doi=10.1007%2fs00531-014-1036-3&partnerID=40&md5=79792898667249e51edeb42e66542364
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/70364
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: Bayerische Staatssammlung für Geologie, Luisenstr. 37, Munich, Germany; Departamento de Geologia (Paleontologia), Universidad de Zaragoza, Saragossa, Spain; Earth Sciences, University College London, Gower Street, London, United Kingdom; Department of Historical Geology and Paleontology, University of Athens, Panepistimioupolis, Zographou, Athens, Greece; Department of Earth Sciences, Royal Holloway University of London, Egham, United Kingdom

Recommended Citation:
Scherreiks R.,Meléndez G.,BouDagher-Fadel M.,et al. Stratigraphy and tectonics of a time-transgressive ophiolite obduction onto the eastern margin of the Pelagonian platform from Late Bathonian until Valanginian time, exemplified in northern Evvoia, Greece[J]. International Journal of Earth Sciences,2014-01-01,103(8)
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