DOI: 10.1007/s00531-013-0984-3
Scopus记录号: 2-s2.0-84896546353
论文题名: Large-scale stratigraphic architecture and sequence analysis of an early Pleistocene submarine canyon fill, Monte Ascensione succession (Peri-Adriatic basin, eastern central Italy)
作者: Di Celma C. ; Teloni R. ; Rustichelli A.
刊名: International Journal of Earth Sciences
ISSN: 14373254
出版年: 2014
卷: 103, 期: 3 起始页码: 843
结束页码: 875
语种: 英语
英文关键词: Deep-water sequence stratigraphy
; Depositional hierarchy
; Gelasian
; Peri-Adriatic basin
; Sedimentary architecture
; Submarine channel-levees
; Turbidity currents
Scopus关键词: biostratigraphy
; depositional sequence
; lithofacies
; paleomagnetism
; Pleistocene
; sediment transport
; sequence stratigraphy
; submarine canyon
; submarine channel
; succession
; turbidite
; turbidity
; Adriatic Sea
; Ascoli Piceno
; Italy
; Marche
; Mediterranean Sea
; Monte Ascensione
英文摘要: The Monte Ascensione succession (c. 2.65-2.1 Ma) is a well-exposed example of an exhumed submarine canyon fill embedded within slope hemipelagic mudstones. This gorge represented a long-lasting pathway for sediment transport and deposition and during the Gelasian delivered Apennine-derived clastic sediment to the adjacent Peri-Adriatic basin. A total of six principal lithofacies types, representing both canyon-confining hemipelagic deposits and canyon-filling turbidity current and mass-transport deposits, can be delineated in the studied sedimentary succession. The canyon-fill deposits display a marked cyclic character and the component lithofacies succeed one another to form at least fifteen fining-upward stratal units, which are interpreted to represent high-frequency, unconformity-bounded depositional sequences. Variability in the vertical repetition of constituent lithofacies allows the identification of three basic styles of sequence architecture that can be interpreted in terms of differing positions along a conceptual down-canyon depositional profile. An integrated chronology, based on biostratigraphic data and on palaeomagnetic polarity measurements, strongly supports a one-to-one correlation between the sequence-bounding surfaces and oxygen isotope stages G2-78, suggesting that the most feasible sequence-engendering mechanism is that of orbitally dictated glacio-eustatic changes in sea level, which regulated timing of sediment storage on the shelf and its redistribution beyond the shelf edge. One of the most significant aspects of this study is the demonstration that processes occurring within upper slope canyons can be expected to be strongly influenced by variations in sea level; that is, the erosional and depositional features evident in these deposits can be strongly controlled by allocyclic processes rather than autocyclic or random processes. © 2013 Springer-Verlag Berlin Heidelberg. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84896546353&doi=10.1007%2fs00531-013-0984-3&partnerID=40&md5=9f7668593fb4e63784547bfae652959e
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/70409
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 Science and Technology, University of Camerino, Camerino, Italy; School of Earth and Environment, University of Leeds, Leeds, United Kingdom
Recommended Citation:
Di Celma C.,Teloni R.,Rustichelli A.. Large-scale stratigraphic architecture and sequence analysis of an early Pleistocene submarine canyon fill, Monte Ascensione succession (Peri-Adriatic basin, eastern central Italy)[J]. International Journal of Earth Sciences,2014-01-01,103(3)