DOI: 10.1016/j.quascirev.2013.08.022
Scopus记录号: 2-s2.0-84900390926
论文题名: A new 6Myr stratigraphic framework for the Atlantic-Arctic Gateway
作者: Mattingsdal R. ; Knies J. ; Andreassen K. ; Fabian K. ; Husum K. ; Grøsfjeld K. ; De Schepper S.
刊名: Quaternary Science Reviews
ISSN: 2773791
出版年: 2014
卷: 92 起始页码: 170
结束页码: 178
语种: 英语
英文关键词: Atlantic-Arctic Gateway
; Depositional setting
; High-resolution seismic data
; Ocean Drilling Program (ODP)
; Paleoenvironment
; Stratigraphic framework
; Svalbard
; Yermak Plateau
Scopus关键词: Deposition
; Seismic response
; Seismic waves
; Stratigraphy
; Submarine geology
; Depositional setting
; High-resolution seismic datum
; Ocean drilling programs
; Paleo-environment
; Stratigraphic framework
; Svalbard
; Yermak plateaux
; Glacial geology
; biostratigraphy
; contourite
; depositional environment
; glacial erosion
; ice sheet
; Miocene
; Ocean Drilling Program
; paleoenvironment
; paleomagnetism
; Pleistocene
; progradation
; seismic data
; shelf break
; stratigraphic correlation
; Arctic
; Arctic Ocean
; Fram Strait
; Svalbard
; Svalbard and Jan Mayen
; Yermak Plateau
英文摘要: A comprehensive stratigraphic framework for the Atlantic-Arctic Gateway has been established for the last 6Myr on the Yermak Plateau, NW Svalbard, based on new paleomagnetic and biostratigraphic sampling and correlation of high-resolution seismic data between Ocean Drilling Program (ODP) Holes 911A, 910C and 912A. The new results indicate a Late Miocene age for the base of both Holes 911A and 910C, providing the first complete late Neogene record for the marginal Arctic Ocean and extending the previously published age model by several million years. During the late Miocene-Pleistocene, the southern Yermak Plateau was dominated by contourite deposition. From the intensification of the Northern Hemisphere glaciation at ~2.7Ma, glacial fans from NW Svalbard prograded onto the southernmost Yermak Plateau. This indicates that the ice sheet on NW Svalbard reached the shelf break at ~2.7Ma, much earlier than on the western Barents Sea-Svalbard margin (~1.5Ma). Simultaneous with the first shelf break glaciation on the western Barents Sea-Svalbard margin at ~1.5Ma, we observe the first signs of extensive glacial erosion on the Yermak Plateau, indicating a regional glacial intensification at this time for the whole Barents Sea-Svalbard region. Our results agree well with the widening/deepening of the Fram Strait and the opening of the Atlantic-Arctic Gateway during the middle Miocene. © 2013 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/60285
Appears in Collections: 过去全球变化的重建
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作者单位: Department of Geology, University of Tromsø, N-9037 Tromsø, Norway; Geological Survey of Norway, N-7491 Trondheim, Norway; Centre for Arctic Gas Hydrate, Environment and Climate, University of Tromsø, N-9037 Tromsø, Norway; Department of Earth Science, University of Bergen, N-5007 Bergen, Norway
Recommended Citation:
Mattingsdal R.,Knies J.,Andreassen K.,et al. A new 6Myr stratigraphic framework for the Atlantic-Arctic Gateway[J]. Quaternary Science Reviews,2014-01-01,92