Seafloor depth of George VI Sound, Antarctic Peninsula, from inversion of aerogravity data

doi:10.1029/2020GL088654

George VI Sound is a ~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 ~1100 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.

DOI	10.1029/2020GL088654
	Seafloor depth of George VI Sound, Antarctic Peninsula, from inversion of aerogravity data
	Renata R. Constantino; Kirsty J. Tinto; Robin E. Bell; David F. Porter; Tom A. Jordan
	2020-10-13
发表期刊	Geophysical Research Letters
出版年	2020
英文摘要	George VI Sound is a ~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 ~1100 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.
领域	气候变化
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引用统计
文献类型	期刊论文
条目标识符	http://119.78.100.173/C666/handle/2XK7JSWQ/299255
专题	气候变化
推荐引用方式 GB/T 7714	Renata R. Constantino,Kirsty J. Tinto,Robin E. Bell,et al. Seafloor depth of George VI Sound, Antarctic Peninsula, from inversion of aerogravity data[J]. Geophysical Research Letters,2020.
APA	Renata R. Constantino,Kirsty J. Tinto,Robin E. Bell,David F. Porter,&Tom A. Jordan.(2020).Seafloor depth of George VI Sound, Antarctic Peninsula, from inversion of aerogravity data.Geophysical Research Letters.
MLA	Renata R. Constantino,et al."Seafloor depth of George VI Sound, Antarctic Peninsula, from inversion of aerogravity data".Geophysical Research Letters (2020).

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