Raised beaches are amongst the most important and direct indicators of relative sea-level change and timing of degladation in Antarctica. Infrared stimulated luminescence dating of cobble surfaces on two sets of raised beaches in Terra Nova Bay in Victoria Land of Antarctica records relative sea-level change since the Mid-Holocene. This study includes dating on five raised beaches on Inexpressible Island (II-1 to II-5) and five raised beaches at Jang Bogo Station (JS-1 to JS-5). The raised beaches at Jang Bogo Station began to form before 6.0 ± 0.8 ka, emerging at an average rate of 0.9 m/ka. The rate of emergence on Inexpressible Island was 1.6^+0.2/_−0.1 m/ka from 4.8 ± 0.5 to 1.1 ± 0.1 ka, since when the rate has been 14.9^+1.8/_−1.0 m/ka. The proximity of the two study sites suggests that glacier melting, and associated glacio-isostatic rebound alone cannot explain the difference between the rates of emergence at the two sets of raised beaches. This spatio-temporal difference in the emergence rates is likely the result of both local tectonics and glacio-isostatic rebound. This view is consistent with recent GPS geodetic analyses, albeit the geologic and geodetic data are on different temporal scales. Moreover, the rapid uplift since 1.1 ka on Inexpressible Island is likely due to vertical movement associated with active faulting.

高架海滩是南极相对海平面变化和下沉时间的最重要和最直接的指标之一。红外辐射激发的南极维多利亚州土地新星湾Terra Terra湾两套凸起的海滩上卵石表面的约会，记录了自全新世以来海平面的相对变化。这项研究包括对不可表达岛上的五个凸起海滩（II-1至II-5）和Jang Bogo站的五个凸起海滩（JS-1至JS-5）进行约会。Jang Bogo站的凸起海滩在6.0±0.8 ka之前开始形成，平均速率为0.9 m / ka。自从出现率达到14.9 ^+1.8 / _-1.0以来，不可表达岛的出现率从4.8±0.5增至1.1±0.1 ka为1.6 ^+0.2 / _-0.1 m / kam / ka。这两个研究地点的邻近性表明，冰川融化以及相关的冰川等静回弹不能单独解释两组凸起海滩的出水率之间的差异。出现率的时空差异可能是局部构造和冰川等静回弹的结果。尽管地质和大地测量数据处于不同的时间尺度，但这种观点与最近的GPS大地测量分析是一致的。此外，不可表达岛上自1.1 ka以来的快速隆升很可能是由于与活动断层有关的垂直运动。