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龙门山地区泥盆纪海平面升降由三个准二级旋回叠加组成：第一个含Ｓ１～Ｓ３层序所对应的三个海平面升降旋回；第二个、第三个分别含Ｓ４～Ｓ１０六个和Ｓ１１～Ｓ１８八个层序映射的三级海平面组合而成。海平面升降频幅样式可识别低频低幅、高频低幅、低频高幅、高频高幅四种类型，整个泥盆纪表现为早晚期低频低幅型，中期则以另外三种混合叠加为主。最高、最低海平面对比显示全球各大陆具不等时性，全球海平面升降规程则具相似性。
The Longmen Shan area Devonian sea level rise and fall by the three quasi-second cycle superimposed composition: the first S1 ~ S3 sequence corresponding to the three sea level cyclone; second and third respectively S4 ~ S10 Six and S11 ~ S18 eight sequence mapping three levels of sea level combination. The sea level rise and fall frequency pattern can identify four types of low frequency low amplitude, high frequency low amplitude, low frequency high amplitude and high frequency high amplitude. The whole Devonian manifests as early and late low frequency and low amplitude type, while in the middle period, Mainly. The highest and lowest sea level comparisons show that the continents of different continents have unequal timeliness and the global maritime sea level rise and fall procedures have similarities.