地理漫步·世界地理英语30篇（4）

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斯堪的纳维亚半岛：冰川遗产与地壳均衡回弹梯度

Deep ice sheets once covered this landmass, leaving behind U-shaped valleys and fjord systems open to the North Sea.
Post-glacial rebound lifts coastal areas fastest where ice was thickest—especially in northern Sweden and Finland.
Sea-level change here is not uniform: some coasts rise while others subside due to forebulge collapse.
Raised beaches appear as terraces at different elevations, marking ancient shorelines preserved in granitic bedrock.
Glacial till and drumlin fields align with former ice-flow directions mapped using satellite elevation data.
Lakes fill glacially scoured basins, their outlets shifting as land uplift alters drainage divides gradually.
Coastal archipelagos grow larger as rebound exposes new land, increasing habitat fragmentation for island species.
Peat bogs accumulate unevenly because water tables respond differently to uplift versus climate-driven precipitation shifts.
Bedrock fractures control spring locations where groundwater emerges along rebound-induced tilt lines.
Modern GPS measurements track millimeter-scale uplift rates that vary over distances less than fifty kilometers.