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ドラムリン

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Drumlins around Horicon Marsh, Wisconsin, in an area with one of the highest concentration of drumlins in the world. The curved path of the Laurentide Ice Sheet is evident in the orientation of the various mounds.

ドラムリンの形成メカニズムと世界的な分布氷河が作り出す「卵形の丘」

ドラムリン氷河地形ティル氷河時代
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