Relieved of the overlying pressure, the volcano ejected a blast of rocks, ash, gas, and steam that blew down and buried several hundred square miles of forest.
随着顶部压力的解除，火山激烈喷涌出大股的岩石、灰尘、气体和蒸气，降落下来后覆盖了数百平方英里范围内的森林。
There was an ash tree in the forest which was thought to be a monster.
森林中有一株被认为是妖怪的白蜡树。
The regional spruce forest-tundra vegetation of the creek has had little change since the eruption of White River ash at 1230 yr B. P.
这一特点与该区广泛发育的泥炭丘地的形成密切相关，而不代表区域性云杉森林—苔原植被面貌在过去的1230年中曾有明显的改变。
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