DOI: 10.1016/j.gloplacha.2015.01.004
论文题名: A consistent magnetic polarity stratigraphy of late Neogene to Quaternary fluvial sediments from the Heidelberg Basin (Germany): A new time frame for the Plio-Pleistocene palaeoclimatic evolution of the Rhine Basin
作者: Scheidt S. ; Hambach U. ; Rolf C.
刊名: Global and Planetary Change
ISSN: 0921-8181
出版年: 2015
卷: 127 起始页码: 103
结束页码: 116
语种: 英语
英文关键词: Fluvial sediment
; Heidelberg basin
; Magnetic polarity stratigraphy
; Magnetostratigraphy
; Plio-pleistocene
; Rhine basin
; Upper rhine graben (URG)
Scopus关键词: Salinity measurement
; Sediments
; Stratigraphy
; Fluvial sediment
; Heidelberg
; Magnetostratigraphy
; Plio-pleistocene
; Rhine basin
; Upper Rhine Graben
; Magnetic polarity
; climate variation
; fluvial deposit
; graben
; magnetic field
; magnetostratigraphy
; Neogene
; paleoclimate
; Quaternary
; Baden-Wurttemberg
; Germany
; Heidelberg
; Rhine Basin
英文摘要: This work presents the results of a magnetostratigraphic survey performed on 1150. m of core material from three sites within the Heidelberg Basin. The cores intersect one of the thickest continuous accumulations of Plio-Pleistocene fluvial sediments in western Central Europe. The resultant magnetic polarity stratigraphy includes every Quaternary polarity chron, thereby providing constant age constraint down to the Gauss-Matuyama Boundary (2.58. Ma). Older deposits cannot be unequivocally dated; instead, various age-depth models are discussed. We base our chronostratigraphic interpretation of the successions tentatively on three assumptions. A) The accommodation was almost constant over time. B) Hiatuses in the duration of subchrons (on the order of 0.2. Myr) may occur, and the actual step-like age-depth relationship is best depicted as a smooth curve with almost constant slope. C) Long chrons and subchrons have a higher preservation potential than shorter polarity intervals. The stratigraphic scenarios with the highest probability - based upon our three assumptions - lead to minimum ages of >. 5.235. Ma and >. 4.187. Ma for the oldest parts of the Viernheim and Heidelberg cores, respectively. Consequently, this study provides the first consistent magnetic polarity stratigraphy for quasi-continuous sequences of late Neogene to Quaternary fluvial sediments in the Rhine Basin and generally in western central Europe. This methodologically independent chronostratigraphy supplies an urgently required temporal model for on-going tectonic and sedimentological studies and the reconstruction of the palaeoclimate since the Pliocene in this part of Europe. © 2015 Elsevier B.V. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84922630074&doi=10.1016%2fj.gloplacha.2015.01.004&partnerID=40&md5=88383fb0f3d4f0318a090566e682a148
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/11547
Appears in Collections: 全球变化的国际研究计划 气候变化与战略
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作者单位: Leibniz Institute for Applied Geophysics, Stilleweg 2, Hannover, Germany
Recommended Citation:
Scheidt S.,Hambach U.,Rolf C.. A consistent magnetic polarity stratigraphy of late Neogene to Quaternary fluvial sediments from the Heidelberg Basin (Germany): A new time frame for the Plio-Pleistocene palaeoclimatic evolution of the Rhine Basin[J]. Global and Planetary Change,2015-01-01,127.