地理漫步·世界地理英语30篇（4）
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The Scandinavian Peninsula: Glacial Legacy and Isostatic Rebound Gradients
斯堪的纳维亚半岛：冰川遗产与地壳均衡回弹梯度
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Deep ice sheets once covered this landmass, leaving behind U-shaped valleys and fjord systems open to the North Sea.
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Post-glacial rebound lifts coastal areas fastest where ice was thickest—especially in northern Sweden and Finland.
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Sea-level change here is not uniform: some coasts rise while others subside due to forebulge collapse.
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Raised beaches appear as terraces at different elevations, marking ancient shorelines preserved in granitic bedrock.
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Glacial till and drumlin fields align with former ice-flow directions mapped using satellite elevation data.
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Lakes fill glacially scoured basins, their outlets shifting as land uplift alters drainage divides gradually.
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Coastal archipelagos grow larger as rebound exposes new land, increasing habitat fragmentation for island species.
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Peat bogs accumulate unevenly because water tables respond differently to uplift versus climate-driven precipitation shifts.
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Bedrock fractures control spring locations where groundwater emerges along rebound-induced tilt lines.
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Modern GPS measurements track millimeter-scale uplift rates that vary over distances less than fifty kilometers.