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.

中文翻译：

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根据重力数据反演，南极半岛乔治六世声音的海底深度

乔治六世（George VI Sound）是南极半岛西海岸一条长达600公里的曲线通道，将亚历山大岛（Alexander Island）与帕尔默地（Palmer Land）隔开。声音是一个地质复杂的区域，目前被乔治六世冰架覆盖。在这里，我们使用重力数据对测深模型进行建模。我们的模型受地震测量的水深限制。我们提出了该地区的地壳密度模型，提出了对声音中主要断层的重定位的建议，并揭示了一个长约200 km的致密物体，位于Palmer Land一侧。声音的南半部分由两个不同的盆地组成，深约1100 m，由-650 m深的脊隔开。这个狭窄的山脊为冰架下方的海洋环流提供了潜在的障碍，并可能解释了观测到的温度-盐度（TS）剖面差异。