DOI: 10.1007/s00531-012-0804-1
Scopus记录号: 2-s2.0-84874019283
论文题名: Relative sea-level change, climate, and sequence boundaries: Insights from the Kimmeridgian to Berriasian platform carbonates of Mount Salève (E France)
作者: Bover-Arnal T. ; Strasser A.
刊名: International Journal of Earth Sciences
ISSN: 14373254
出版年: 2013
卷: 102, 期: 2 起始页码: 493
结束页码: 515
语种: 英语
英文关键词: Berriasian
; Carbonate platform
; France
; Palaeoclimate
; Sea-level change
; Sequence stratigraphy
Scopus关键词: climate change
; coral
; Jurassic-Cretaceous boundary
; kaolinite
; Kimmeridgian
; limestone
; oceanography
; outcrop
; quartz
; regression analysis
; sea level change
; sedimentary sequence
; seismic data
; transgression
; France
; Haute Savoie
; Mount Saleve
; Rhone-Alpes
; algae
; Anthozoa
英文摘要: The present study analyses the stratal architecture of the Late Jurassic (Kimmeridgian) to Early Cretaceous (Berriasian) sedimentary succession of Mount Salève (E France), and four Berriasian stratigraphic intervals containing four sequence-boundary zones reflecting lowering trends of the relative sea-level evolution. Massive Kimmeridgian limestones characterized by the presence of colonial corals appear to be stacked in an aggrading pattern. These non-bedded thick deposits, which are interpreted to have formed in balance between relative sea-level rise and carbonate accumulation, suggest a keep-up transgressive system. Above, well-bedded Tithonian-to-Berriasian peritidal carbonates reflect a general loss of accommodation. These strata are interpreted as a highstand normal-regressive unit. During the early phase of this major normal regression, the vertical repetition of upper intertidal/lower supratidal lithofacies indicates an aggrading depositional system. This is in agreement with an early stage of a highstand phase of relative sea level. The Berriasian sequence-boundary zones investigated (up to 4 m thick) developed under different climatic conditions and correspond to higher-frequency, forced- and normal-regressive stages of relative sea-level changes. According to the classical sequence-stratigraphic principles, these sequence-boundary zones comprise more than one candidate surface for a sequence boundary. Three sequence-boundary zones studied in Early Berriasian rocks lack coarse siliciclastic grains, contain a calcrete crust, as well as marly levels with higher abundances of illite with respect to kaolinite, and exhibit fossilized algal-microbial laminites with desiccation polygons. These sedimentary features are consistent with more arid conditions. A sequence-boundary zone interpreted for the Late Berriasian corresponds to a coal horizon. The strata above and below this coal contain abundant quartz and marly intervals with a higher kaolinite content when compared to the illite content. Accordingly, this Late Berriasian sequence-boundary zone was formed under a more humid climate. The major transgressive-regressive cycle of relative sea level identified and the climate change from more arid to more humid conditions recognized during the Late Berriasian have been reported also from other European basins. Therefore, the Kimmeridgian to Berriasian carbonate succession of Mount Salève reflects major oceanographic and climatic changes affecting the northern margin of the Alpine Tethys ocean and thus constitutes a reliable comparative example for the analysis of other coeval sedimentary records. In addition, the stratigraphic intervals including sequence-boundary zones characterized in this study constitute potential outcrop analogues for sequence-boundary reflectors mapped on seismic profiles of subsurface peritidal carbonate successions. The detailed sedimentological analyses provided here highlight that on occasions the classical principles of sequence stratigraphy developed on seismic data are difficult to apply in outcrop. A sequence-boundary reflector when seen in outcrop may present successive subaerial exposure surfaces, which formed due to high-frequency sea-level changes that were superimposed on the longer-term trend of relative sea-level fall. © 2012 Springer-Verlag. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84874019283&doi=10.1007%2fs00531-012-0804-1&partnerID=40&md5=321e09009a6a60e65460bcfba30de9ef
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/70579
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: Département de Géosciences, Université de Fribourg, Chemin du Musée 6, 1700 Fribourg, Switzerland
Recommended Citation:
Bover-Arnal T.,Strasser A.. Relative sea-level change, climate, and sequence boundaries: Insights from the Kimmeridgian to Berriasian platform carbonates of Mount Salève (E France)[J]. International Journal of Earth Sciences,2013-01-01,102(2)