The traveltime residuals of 393 receiver sites with more than 21,000 P wave and 9,700 S wave arrivals are used to investigate the upper‐mantle P and S wave velocity structure down to the depth of 500 km beneath the regions of high topography of the North Atlantic Caledonian crust. In east Greenland, we observe high‐velocity anomalies beneath high topography. In northern Norway and Sweden, a stable thick lithosphere beneath both the high topography and the Baltic shield exists. Only southern Norway exhibits a weak correlation between high topography and low‐velocity anomalies of P and S waves. Consequently, the correlation of topography versus average relative traveltime residuals in four regions of proposed Cenozoic epeirogenic uplift reveals positive correlation only in southern Norway and negative or absence of correlation in other regions. These results show that high topography does not correlate with the inferred velocity structure of the upper mantle in the North Atlantic realm. Consequently, our findings weaken the hypothesis of dynamic topography and epeirogenic uplift of the Atlantic margins during the Late Cenozoic.

中文翻译：

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上地幔是否支持北大西洋周围的高地形？

393个接收器站点的传播时间残差超过21,000个P波和9700个S波到达，用于研究北大西洋喀里多尼亚高地形区以下500 km深度的上地幔P和S波速度结构脆皮。在格陵兰岛东部，我们观察到了高地形下的高速异常。在挪威北部和瑞典，在高地形和波罗的海盾牌之下都存在稳定的厚岩石圈。仅挪威南部的高地形与低速P和S异常之间的相关性较弱波浪。因此，在提议的新生代隆起的四个地区，地形与平均相对旅行时间残差的相关性仅在挪威南部显示出正相关，而在其他地区则没有相关性。这些结果表明，高地形与北大西洋地区上地幔的推断速度结构不相关。因此，我们的发现削弱了新生代末期大西洋边缘的动态地势和成矿作用的假说。