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通过60余口钻井岩芯资料的研究,表明川东黄龙组为碳酸盐岩1类层序,由低水位、海侵和高水位早期沉积体系域组成,各体系域以不同性质的界面为边界,有不同的高频旋口组合特征。本文重点讨论了各类界面的识别标志,海平面升降变化与高频旋回的关系,以及由海平面变化、盆地沉积和沉降速率复合控制的3个沉积体系域的演化特征,在此基础上建立了以川东黄龙组为代表的内部克拉通盆地层序地层模式。
Based on the data from more than 60 drilling cores, it shows that the Huanglong Formation in eastern Sichuan is a type 1 sequence of carbonate rocks and consists of low-water-level, transgressive and high-water-level early sedimentary system tracts. Boundary, there are different high-frequency rotary combination features. This article focuses on the identification of various interfaces, the relationship between sea-level changes and high-frequency cycles, and the evolution characteristics of three sedimentary system domains controlled by sea level changes, basin sedimentation and sedimentation rates. On the basis of this, The sequence stratigraphic model of the interior craton basin, represented by the eastern Sichuan Huanglong Formation.