冰川漂砾的形成年代通常难以直接测定，并且漂砾形成以后是否被再次搬运或者移动过，更是无法知道。
The ages of drift boulders are usually very difficult to be dated directly, and it is harder to know whether the boulders have been re-transported or rolled over since their formation.
漂砾作为这次建筑和设计的主题，包含了坚固、耐久性和芬兰风格的内涵。
The presence of the latter as an architectonic and design theme carries connotations of durability, permanence and Finnishness.
泥石流的顶部布满了漂砾。
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