DOI: 10.1007/s00531-012-0841-9
Scopus记录号: 2-s2.0-84878106536
论文题名: The Antarctic viewpoint of the Central Paratethys: Cause, timing, and duration of a deep valley incision in the Middle Miocene Alpine-Carpathian Foredeep of Lower Austria
作者: Gebhardt H. ; Roetzel R.
刊名: International Journal of Earth Sciences
ISSN: 14373254
出版年: 2013
卷: 102, 期: 4 起始页码: 977
结束页码: 987
语种: 英语
英文关键词: Alpine-Carpathian Foredeep
; Central Paratethys
; Glacio-eustatic sea-level changes
; Incised valley
; Middle Miocene
Scopus关键词: deposition
; erosion
; glacioeustacy
; incised valley
; marine sediment
; Miocene
; Paratethys
; sea level change
; Antarctica
; Austria
; Carpathian Foredeep
; Lower Austria
; Vienna Basin
; Paratethys
英文摘要: Global, glacio-eustatic sea-level changes massively influenced the depositional history of the Central Paratethyan region. Here, we correlate Middle Miocene global δ18O-shifts with ice volume changes on Antarctica and sea-level changes with corresponding phases of erosion (valley incision) and deposition in the Lower Austrian part of the Alpine-Carpathian Foredeep. This allows the exact dating of the valley formation. Two periods of positive δ18O-shifts resulted in sea-level drops of about 60 and 40 m, respectively. The first drop in the late Langhian (middle Badenian) at c. 13.9 Ma (Mi3b) was fast and caused severe erosion on the emerged foredeep. In a second, less pronounced step around 13.0 Ma (Mi4) in the middle Serravallian (late Badenian), the base level was further deepened after a period of alternating erosion and deposition. The combined sea-level change (80-120 m) fits well with the maximum thickness of Sarmatian sediments drilled within incised valley (110 m). The global sea-level falls affected not only the geological history of the foredeep. The intensive erosion (valley incision) is combined with delta progradation in the adjacent Vienna Basin. Due to this massive sea-level drop, the interruption of marine connections resulted in vast salt deposits and faunal crises within the Central Paratethys during this time. © 2012 Springer-Verlag Berlin Heidelberg. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84878106536&doi=10.1007%2fs00531-012-0841-9&partnerID=40&md5=1c606e6dd5d354610ebf1708cae4d57c
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/70550
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: Geologische Bundesanstalt, Neulinggasse 38, 1030 Vienna, Austria
Recommended Citation:
Gebhardt H.,Roetzel R.. The Antarctic viewpoint of the Central Paratethys: Cause, timing, and duration of a deep valley incision in the Middle Miocene Alpine-Carpathian Foredeep of Lower Austria[J]. International Journal of Earth Sciences,2013-01-01,102(4)