Bayanhot basin has three depositional systems including lagoon - tidal flat , delta - fan delta and offshore shallow sea 巴彦浩特盆地石炭系发育泻湖潮坪、三角洲扇三角洲及滨浅海三大沉积体系。
From northern and western to southern and eastern , the sedimentary facies transited from fan delta , braided delta to lake facies 由北、西向南、东，沉积相由扇三角洲、辫状河三角洲向湖泊过渡。
From lower to upper , deliverability of supply source debris rappidly reduced , the result is that the scale of the fan deltas rappidly lessened 由下向上物源碎屑的供应量迅速减少，表现为扇三角洲的规模急剧变小。
3 ) the pingdiquan formation mainly are the deposition of lake and fan - delta , fan - delta developing in the background of the lake facies sedimentary 平地泉组以湖，扇三角洲相沉积为主，扇三角洲的生长是在湖相的背景下进行的。
The types of sedimentary facies were mainly fan - shaped delta , delta , binshore subaqueous fans , slump turbid fan , lake facies , fluvial facies 该研究区主要发育扇三角洲、三角洲、近岸水下扇、滑塌浊积扇、湖相和河流相沉积。
There are three deltaic types developed in lacustrine strata , i . e . , normal , braid and fan deltas , which consist of delta plain , delta front and front delta 摘要在湖泊中存在三种三角洲类型，即正常三角洲，辫状三角洲和扇三角洲。
Early permian was initial stages of expanding of the lake basin . inside the region of interest , there developed fan delta , braided delta and lake facies 早二叠世是湖盆扩张初期，区内发育扇三角洲相、辫状河三角洲相和湖泊相。
Major reservoir included sand bodies of subaquatic distributary channels in deltas , braided deltas , fan deltas , and sand bodies of turbidtte in deep lake 主要的储集层有：三角洲、辫状河三角洲、扇三角洲前缘水下分流河道砂体和深湖浊积岩砂体。
Through the correlation of fan delta to standard deltaic parasequence model , a well - developed fan - delta succession could fall into two parasequences 扇三角洲相在断陷湖盆的陡坡一侧发育，通过与标准三角洲副层序模式对比，一个完整的扇三角洲序列可以划分出两个副层序。
Vertically , a series of turbidite fans and fan deltas developed along eastern border of guxi contemporaneous fault zone and sandbodies were overlaped with each other 垂向上，沿东部边界孤西同生断裂带发育的一系列浊积扇和扇三角洲由于迁移摆动，砂体可以相互叠置连片。
