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- overbank turbidite 漫滩浊积岩
- The turbidite sandstone is mainly thick-bedded. 浊积体以厚层块状为主。
- Source beds are turbidite of middle Triassic series. 矿源层为中三叠统浊积岩。
- The main microfacies are midchannel bar, braided channel and overbank. 研究区主要微相类型有心滩、辫状河道与河道间。
- The granularity analysis results show typical features of turbidite deposits. 粒度分析表明其具有典型的浊流特征。
- Reservoir rock of the study zone belongs to low-density turbidite sequence. 渤南一区完整和不完整的鲍玛序列,为典型的低密度浊积序列。
- Those within existing stream channels are much less stable than overbank deposits. 现在河槽内沉积物的稳定性比河漫滩上沉积物差的多。
- The Dengying formation encluded carbonate turbidite and gravity sliding layer. 灯影组发育碳酸盐岩浊积岩层和重力滑动层。
- The symmetric overbank flows with smooth boundary are computed and the results agree with the experimental data. 对光滑边界上对称的漫滩水流进行了计算,计算结果与实验资料吻合良好。
- The relationship between water-depth and discharge of overbank flows is very different form inbank flow. 漫滩水流在天然河道中极为常见,尤其在冲积平原地区。
- The overbank and fluvial channel sub-facies in the fluvial facies were developed.Only delta front sub-facies was developed in the delta facies. 其中,河流相中发育堤泛亚相和河道亚相,在三角洲相中仅发育三角洲前缘亚相,湖泊相中以浅湖亚相为特征。
- The turbidite was resulted from six cycles,and each of them includes A and B members of imperfect Boma succession. 浊积岩由6期事件形成,下部为不完整的鲍玛序列,分别由A、B2段构成;
- The Mesoproterozoic Shuangqiaoshan Group in northern Jiangxi appears as a complete turbidite fan. 赣北中元古界双桥山群是一个完整的浊积扇体。
- The sublacustrine fans of the studied area are the turbidite fans which gravity flo... 浊积扇砂体易形成岩性或构造-岩性油气藏,是油气勘探的重要目标。
- The turbidite is overlain by Mid-Cretaceous volcanic rocks and intruded by Eocene tonalites. 研究表明,这些含砾泥岩可能是水下碎屑流沉积,其生成环境可能是海底扇中扇的水道。
- The Carboniferous Kalashayi Formation in the Tahe Oilfield occurs as lenticular channel facies of sandstones interbedded between the overbank mudstones of Members K3 and K4. 摘要塔河油田卡拉沙依组河道相砂岩油层夹于卡三段和卡四段的氾滥平原泥岩中,小层对比时缺乏时间-岩性标志层。
- Seismic facies show that the sedimentation is governed by hemipelagic sediments and/or turbidite deposits. 上部斜坡发育许多水下切蚀沟,显示以侵蚀作用为主;
- Five microfacies sandbodies including distributary channel, mouth bar, front sheet sand, gravity flow sand and overbank sand are developed in the fan delta front. 在扇三角洲前缘主要发育水下分流河道、河口坝、前缘席状砂体、重力流砂体、水下溢岸砂体5种微相砂体。
- There are a lot of turbidite sand Unties in the third member of Shahejie Formation in Dongying Depression. 东营凹陷沙三段发育了大量浊积岩,构成了完整的浊积岩体系,是油气勘探的重要目标。
- Lake level fluctuations control the development phase of turbidite fan through controlling sediment supply. 湖平面变化控制了沉积物供给,从而控制了扇体的发育期次。