Marine progression and regression activities in platform areas are frequently triggered by the adjacent geosynclinal areas where basin and range movements take place.

 
  • 地臺區的海進(jìn)、海退,分別與相鄰地槽區的造盆和造山運動(dòng)伴生這一普遍現象,主要是在重力均衡作用下,上地幔流變層(軟流層,異常地幔)物質(zhì)側向遷移所致。
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