气候变化领域集成服务门户(CCPortal): Seafloor Depth of George VI Sound; Antarctic Peninsula; From Inversion of Aerogravity Data

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DOI	10.1029/2020GL088654
	Seafloor Depth of George VI Sound; Antarctic Peninsula; From Inversion of Aerogravity Data
	Constantino R.R.; Tinto K.J.; Bell R.E.; Porter D.F.; Jordan T.A.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:21
英文摘要	George VI Sound is an ~600 km-long curvilinear channel on the west coast of the southern Antarctic Peninsula separating Alexander Island from Palmer Land. The Sound is a geologically complex region presently covered by the George VI Ice Shelf. Here we model the bathymetry using aerogravity data. Our model is constrained by water depths from seismic measurements. We present a crustal density model for the region, propose a relocation for a major fault in the Sound, and reveal a dense body, ~200 km long, flanking the Palmer Land side. The southern half of the Sound consists of two distinct basins ~1,100 m deep, separated by a −650 m-deep ridge. This constricting ridge presents a potential barrier to ocean circulation beneath the ice shelf and may account for observed differences in temperature-salinity (T-S) profiles. ©2020. The Authors.
英文关键词	Geophysics; Antarctic Peninsula; Dense bodies; Density modeling; Ice shelves; Ocean circulation; Potential barriers; Seismic measurements; Water depth; Earth sciences; bathymetry; ice shelf; inversion layer; oceanic circulation; Alexander Island; Antarctic Peninsula; Antarctica; Danish Straits; George VI Ice Shelf; George VI Sound; Oresund; Palmer Land; West Antarctica
语种	英语
来源期刊	Geophysical Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/169504
作者单位	Lamont-Doherty Earth Observatory, Columbia University, Palisades, NY, United States; British Antarctic Survey, Cambridge, United Kingdom
推荐引用方式 GB/T 7714	Constantino R.R.,Tinto K.J.,Bell R.E.,et al. Seafloor Depth of George VI Sound; Antarctic Peninsula; From Inversion of Aerogravity Data[J],2020,47(21).
APA	Constantino R.R.,Tinto K.J.,Bell R.E.,Porter D.F.,&Jordan T.A..(2020).Seafloor Depth of George VI Sound; Antarctic Peninsula; From Inversion of Aerogravity Data.Geophysical Research Letters,47(21).
MLA	Constantino R.R.,et al."Seafloor Depth of George VI Sound; Antarctic Peninsula; From Inversion of Aerogravity Data".Geophysical Research Letters 47.21(2020).