DOI: 10.1016/j.palaeo.2012.11.009
论文题名: Revised Miocene splice, astronomical tuning and calcareous plankton biochronology of ODP Site 926 between 5 and 14.4Ma
作者: Zeeden C. ; Hilgen F. ; Westerhold T. ; Lourens L. ; Röhl U. ; Bickert T.
刊名: Palaeogeography, Palaeoclimatology, Palaeoecology
ISSN: 0031-0182
出版年: 2013
卷: 369 起始页码: 430
结束页码: 451
语种: 英语
英文关键词: Astronomical tuning
; Miocene
; ODP Site 926
; Splice
; Stratigraphy
英文摘要: The distinctly cyclic sediments recovered during ODP Leg 154 played an important role in constructing the astronomical time scale and associated astro(bio)chronology for the Miocene, and in deciphering ocean-climate history. The accuracy of the timescale critically depends on the reliability of the shipboard splice used for the tuning and on the tuning itself. New high-resolution colour- and magnetic susceptibility core scanning data supplemented with limited XRF-data allow improvement of the stratigraphy. The revised composite record results in an improved astronomical age model for ODP Site 926 between 5 and 14.4. Ma. The new age model is confirmed by results of complex amplitude demodulation of the precession and obliquity related cycle patterns. Different values for tidal dissipation are applied to improve the fit between the sedimentary cycle patterns and the astronomical solution. Due to the improved stratigraphy and tuning, supported by the results of amplitude demodulation, the revised time scale yields more reliable age estimates for planktic foraminiferal and calcareous nannofossil events. The results of this study highlight the importance of stratigraphy for timescale construction. © 2012 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/69909
Appears in Collections: 过去全球变化的重建
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作者单位: University of Utrecht, Faculty of Geosciences, Budapestlaan 4, 3584 CD Utrecht, Netherlands; MARUM - Zentrum für Marine Umweltwissenschaften, Universität Bremen, Leobener Straße, 28359 Bremen, Germany
Recommended Citation:
Zeeden C.,Hilgen F.,Westerhold T.,et al. Revised Miocene splice, astronomical tuning and calcareous plankton biochronology of ODP Site 926 between 5 and 14.4Ma[J]. Palaeogeography, Palaeoclimatology, Palaeoecology,2013-01-01,369