高分辨率层序地层学理论探析

地层基准面模式是高分辨率层序地层学理论的基石,伴随基准面的升降变化,可容纳空间增长速率与沉积物补给通量的比值不仅决定了地质作用全过程及旋回地层的发育,而且还直接影响着地层中砂体的空间展布规律及物性特征.在识别出不同级次地层旋回的基础上,高分辨率层序地层学的旋回等时对比技术使建立精确的区域地层对比格架成为可能.

DISCUSSION ON HIGH-RESOLUTION SEQUENCE STRATIGRAPHIC THEORY

Base level model is regard as the theory cornerstone of high-resolution sequence stratigraphy. With base level rising and falling,the change of A/S value not only restricts the whole geologic process, strata patterns and sedimentary features, but also has the close relation to the time-space distribution and the variety of physical property of sandbodies in strata. Base on the discerning of different levels base-level cycle, the chronostratigraphic correlation can provide guides to establish precise stratigraphic frame.