submerged delta front 水下三角洲前缘 ; 水下三角洲前沿
delta-front facies 三角洲前缘相
delta-front landsliding 三角洲前缘滑坡
delta front belt 三角洲前缘相带
delta front sand body 三角洲前缘砂体
fan-delta front 扇三角洲前缘
fan delta front 扇三角洲前缘
The rival channel, lake shoreline and gentle slope are quite important for controlling the delta-front sand-body of lithologic trap in a depression basin.
在坳陷湖盆，河道、湖岸线和缓坡对有利于岩性圈闭发育的三角洲前缘砂体具有明显的控制作用。
Its reservoir with secondary porosity zone is also a key for petroleum pool formation, which is of distributary channel of fan delta front.
该构造储层属三角洲前缘亚相的水下分流河道微相沉积，并存在由成岩作用形成的次生孔隙发育带。
The river for building the delta was characterised by low velocity, high discharge, high concentration of fine clay and sand, and associated with reef (shoal) in delta front.
该三角洲沉积的特征是入海河流流速低而流量大，泥沙含量高而粒级细小，在三角洲前缘伴生有生物礁(滩)。
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