层序多显示相对的海平面以及广泛分布的不整合，沉积作用的过程，沉积物的来源，气候和构造活动等随地质时代变化的旋回性。
Sequences tend to show cyclicity of changes in relative sea level and widespread unconformities, processes of sedimentation and sources of sediments, climate and tectonic activity over time.
由于气候变化和新构造运动，渤海曾发生多次海陆演化，从而形成了第四纪地下卤水。
Because of climatic changes and new tectonic movements, several sea and land evolutions occurred in the Bohai sea area to result in the formation of subsurface brine.
景观演化与全球构造、生物演变和主要气候变化具有相同的时间尺度，是长期全球变化的一个重要方面。
Landscape evolution is an important aspect of global change; it spans the same time-scale as global tectonics, biological evolution, and major climatic change.
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