retrograding sequence 中文意思是什麼
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Moreover, the system tracts in sequence are characterized by dualistic structure, namely transgressive - highstand system tracts, and tst > hst. the parasequences are divided into three types, which is respectively dominated by sandstones, mudstones, and shallowing - upward tidal flat system. and prograding sequence and retrograding sequence are composed of stacking parasequence set
層序中體系域具有二元結構特徵，即海侵?高水位體系域，且tst hst ，準層序類型有三種，分別是以砂巖為主的準層序、以泥巖為主的準層序和以潮坪體系向上變淺的準層序。
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