由于河流阶地是间歇性新构造抬升的产物，其形成阶段又与气候的冷暖变化相关，即冷期阶地陡坎形成，暖期阶地堆积物形成。
Because the river terrace is the result of interrupting neotectonic uplift and its forming stages are bound up with the geologic climate cold warm changes, I.
有关的成煤作用包括：泥炭的原地堆积—异地搬运作用、地壳旋回运动所引起的埋藏作用和成煤阶段的热变质作用。
While its geologic activities include peat accumulation and transportation, embedding activity caused by diastrophism and geothermal metamorphism of coal.
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