气候变化领域集成服务门户(CCPortal): The Early-Mid Holocene transgression (Tapes) at the Norwegian coast – comparing observations with numerical modelling

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DOI	10.1016/j.quascirev.2020.106435
	The Early-Mid Holocene transgression (Tapes) at the Norwegian coast – comparing observations with numerical modelling
	Fjeldskaar W.; Bondevik S.
发表日期	2020
ISSN	0277-3791
卷号	242
英文摘要	The Early to Mid-Holocene transgression, dated between approximately 10,000 and 7000 cal yr BP, inundated a significant part of the coastal areas of Norway. In this paper we compare observations of the amplitude of the transgression with numerical modelling. The observations of the transgression along the coast vary from a couple of meters to more than 20 m, and depend on the distance from the margin of the last ice sheet over Fennoscandia. We reviewed and evaluated the uncertainty of the data, and present here the most reliable observations of the transgression – data derived from the analysis of isolation basins – from 17 locations spread along the Norwegian coast. The numerical model simulates the response of the Earth to the deglaciation and changing sea level and shows that the transgression is mainly a result of the rising sea level and movements of the Earth due to postglacial rebound. Our Earth model consists of two viscous layers overlain by an elastic lithosphere. We found a good match to the observations in southern Norway with a weak effective elastic lithosphere (∼30 km). This is consistent with a previous study of tilt of the raised late glacial shorelines in southwestern Norway. In northern Norway, however, the same Earth model and ice model give significant mismatch to the observations. The best-fit model for northern Norway has a significantly thicker effective elastic lithosphere. An alternative explanation for the mismatch could be a later deglaciation of the Barents Sea than generally assumed or neo-tectonism in the area. © 2020 Elsevier Ltd
英文关键词	Effective elastic lithosphere thickness; Glacial isostasy; Holocene; Mantle viscosity; Scandinavia; Sea level changes; Tapes transgression in Norway; Transgression
语种	英语
scopus关键词	Sea level; Uncertainty analysis; Best-fit models; Deglaciations; Elastic lithosphere; Fennoscandia; Holocene transgression; Isolation basin; Southern Norway; Viscous layers; Numerical models; coastal zone; comparative study; Holocene; last deglaciation; last ice sheet; observational method; transgression; Arctic Ocean; Barents Sea; Fennoscandia; Norway
来源期刊	Quaternary Science Reviews
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/151395
作者单位	Tectonor AS, Stavanger, Norway; Department of Environmental Sciences, Western Norway University of Applied Sciences, P.O. Box 133, Sogndal, 6851, Norway
推荐引用方式 GB/T 7714	Fjeldskaar W.,Bondevik S.. The Early-Mid Holocene transgression (Tapes) at the Norwegian coast – comparing observations with numerical modelling[J],2020,242.
APA	Fjeldskaar W.,&Bondevik S..(2020).The Early-Mid Holocene transgression (Tapes) at the Norwegian coast – comparing observations with numerical modelling.Quaternary Science Reviews,242.
MLA	Fjeldskaar W.,et al."The Early-Mid Holocene transgression (Tapes) at the Norwegian coast – comparing observations with numerical modelling".Quaternary Science Reviews 242(2020).