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野外研究证明,海面升降运动对于构造活动边缘的相模式有着明显的控制作用。在圣迭戈海湾和下加利福尼亚北部晚白垩世和始新世的弧前地层以海进层序一海退层序为特征。大量底栖有孔虫和微型浮游生物资料,为这些水深变化急剧的沉积压实边缘提供了相变的时代和分布范围。完整的地层组合可归纳为三种级别和类型的沉积层序。可根据其中两个较大层序的时间和几何形态,来制作相对的海平面曲线,这种相对海平面曲线与世界海平面曲线有极其密切的相关关系。主要的沉积旋回厚数百米,是不对称的,它的特点是:底部是一较薄的海退层序,其上则是一较厚的海进层序,每个沉积旋回都与海岸上超的“超旋回”有关。沉积旋回由受全球海平面变化“旋回”和“次旋回”控制的规模较小的地层韻律组成。两个较大的沉积层序上反映了局部的沉积脉动,俄勒冈到下加利福尼亚孤立的海岸盆地中的同期旋回和沉积韻律进一步表明,海面升降运动对于沉积作用有着重要的控制作用。这样,以野外研究为基础的相分析就证明,Vail曲线或其它的海岸上超和全球海平面变化曲线可用作盆地分析中的预测工具。
Field studies have shown that the sea surface movements have obvious control over the phase modes of tectonic activities. The pre-arcuate strata of the Late Cretaceous and the Eocene in the Gulf of San Diego and northern Baja California are characterized by a sequence of sea-derived-receded sea. A large number of benthic foraminifera and micro-planktonic data provide the epoch and distribution of these phase transitions for these rapidly changing sediment-compaction margins. Complete formation combinations can be grouped into three levels and types of sedimentary sequences. The relative sea level curve can be made according to the time and geometry of two of the larger sequences, and the relative sea level curve has an extremely close correlation with the world sea level curve. The major sedimentary cycles, hundreds of meters in thickness, are asymmetrical and are characterized by a thin subducting sequence at the bottom and a thick marine sequence above each sedimentary cycle, On the ultra “spin” related. Sedimentary cycles consist of smaller scale rhythms controlled by global “sea level” cycles and “secondary cycles”. The two larger sedimentary sequences reflect local sedimentary pulsations, and the rhythmic cycle of sedimentation and sedimentation in the isolated coastal basin from Oregon to Baja California suggests further that the upwelling movement plays an important role in controlling sedimentation. Thus, phase analysis based on field studies proves that Vail curves or other coastal and global sea-level changes can be used as a predictor of basin analysis.