The water depth reduced due to deposition, the water flow velocity upon the alluvial sector increased obviously and at the front of the delta exists currents around the sand bar.
The main sedimentary environment is delta front and delta underwater channel sand and branched channel mouth bar.
其主要沉积环境是三角洲前缘和三角洲水下河道砂体以及分支河口砂坝。
3
The Jurassic of Junggar basin is a river delta sedimentary system, with subaqueous distributary channel and mouth bar sand body developed in the hinterland of Junggar basin.