【摘要】 根据岩石类型组合,垂直层序,沉积构造,粒度分布,电测曲线形态及其组合特征等相标志,在东海陆架盆地某井识别出两种类型的河流剖面,即粗粒曲流河沉积剖面和细粒网状河沉积剖面.二者所反映的河水的侵蚀、搬运和沉积作用截然不同,但又是河流发展不同阶段的产物.更多还原

【Abstract】 Two types of fluvial deposits are recognized during sedimentary facies analysis on X Well, i. e. coarse-grain meandering deposit and fine-grain anastomosing deposit. Because the both rivers have different hydrodynamic ocnditions, they have different erosions, transportations, and sedimentation, thus different lithologic assemblages, sedimentary structures, sequences, grain- size distribution and shape and combination of logging curves (mainly GR curves) are formed.The two rivers, as products at different stages of a river development, are distinct greatly but they are also genetically related to each other.更多还原