DOI: 10.1016/j.quascirev.2017.12.020
Scopus记录号: 2-s2.0-85047076563
论文题名: Quaternary dinoflagellate cysts in the Arctic Ocean: Potential and limitations for stratigraphy and paleoenvironmental reconstructions
作者: Matthiessen J. ; Schreck M. ; De Schepper S. ; Zorzi C. ; de Vernal A.
刊名: Quaternary Science Reviews
ISSN: 2773791
出版年: 2018
卷: 192 起始页码: 1
结束页码: 26
语种: 英语
英文关键词: Arctic Ocean
; Bioevents
; Biostratigraphy
; Composite chronostratigraphy
; Dinoflagellate cysts
; Lithostratigraphy
; Quaternary
Scopus关键词: Oceanography
; Sea ice
; Arctic ocean
; Bioevents
; Chronostratigraphy
; Dinoflagellate cysts
; Lithostratigraphy
; Quaternary
; Biostratigraphy
; biostratigraphy
; chronostratigraphy
; depositional environment
; dinoflagellate cyst
; fossil record
; glacial-interglacial cycle
; ice cover
; lithostratigraphy
; marginal sea
; microfossil
; paleoceanography
; paleoenvironment
; palynomorph
; pelagic deposit
; Pleistocene
; Pliocene-Pleistocene boundary
; Quaternary
; reconstruction
; sea ice
; sedimentation rate
; siliciclastic deposit
; Arctic Ocean
; Barents Sea
; Bering Sea
; Lomonosov Ridge
; Pacific Ocean
; Dinophyceae
; Filifera
英文摘要: The Arctic Ocean is a siliciclastic depositional environment which lacks any rock-forming biogenic calcareous and siliceous components during large parts of its Quaternary history. These hemipelagic sediments are nevertheless suitable for the study of organic-walled microfossils of which the fossil remains of dinoflagellates - dinoflagellate cysts - are the most important group. Dinoflagellate cysts have become an important tool in paleoceanography of the high northern latitudes, but their potential for Quaternary biostratigraphy has remained largely unexplored. Dinoflagellate cysts are the dominant marine palynomorph group which is more continuously present in the marginal seas (e.g. Barents Sea, Bering Sea) than in the Arctic Ocean itself throughout the Quaternary. Most species have long stratigraphic ranges, are temporary absent and show abundance variations on glacial-interglacial timescales. Of the more than 30 taxa recorded, only Habibacysta tectata and Filisphaera filifera became extinct in the Pleistocene. The highest persistent occurrence of H. tectata at ca. 2.0 Ma and the top of F. filifera acme at ca. 1.8 Ma can be used for supra-regional stratigraphic correlation between the Arctic Ocean and adjacent basins. These events corroborate a slow sedimentation rate model for the Quaternary section on the central Lomonosov Ridge, but a combination of different methods will have to be applied to provide a detailed chronostratigraphy. The occurrence of cysts of phototrophic dinoflagellates in certain stratigraphic intervals on Lomonosov Ridge supports published evidence of episodic opening of the multiyear Arctic sea ice cover during the Quaternary probably related to a stronger inflow of Atlantic water. This contradicts the hypothesis of a permanently ice covered central Arctic Ocean in the Quaternary. © 2018 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/112145
Appears in Collections: 气候减缓与适应
There are no files associated with this item.
作者单位: Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research, Bremerhaven, D-27568, Germany; Department of Geosciences, University of Tromsø – The Arctic University, Tromsø, N-9037, Norway; Uni Research Climate, Bjerknes Centre for Climate Research, Jahnebakken 5, Bergen, N-5007, Norway; Université du Québec à Montréal, Centre GEOTOP, Montréal, Québec H3C 3P8, Canada
Recommended Citation:
Matthiessen J.,Schreck M.,De Schepper S.,et al. Quaternary dinoflagellate cysts in the Arctic Ocean: Potential and limitations for stratigraphy and paleoenvironmental reconstructions[J]. Quaternary Science Reviews,2018-01-01,192