Some marine bivalves were found in the badaowan formation ( early jurassic ) with continental lacustrine sediment , which indicates that junggar basin used to be coneded with sea water in a short time or the sea water emerged the lake 摘要在陆相河湖沉积的八道湾组（早侏罗世）内，新发现一些海相瓣鳃类化石，表明当时准噶尔盆地在一短期内曾与海水相通，或者海水通过某一水系涌入该河湖区。
As regards sk ( bias angle ) and kg ( kurtosis ) values , the fluvio - lacustrine facies or palaeosols increases considerably compared with the aeolian sands . the former displays positive bias and the latter often approximately symmetrical distribution with only a minority negative bias 就sk和kg变化而言，河湖相或古土壤值较之风成砂明显增高，前者呈正偏，后者常常表现近对称分布，仅少数呈负偏。
The condensates that derived from coals in yangtake structure are mixed by the light compositions from triassic lacustrine mudstones . the distribution of nitrogen compositions proved that differences of compositional fractionation existed in different carrier systems from source to trap in kuche basin 利用含氮化合物的运移分馏效应证实了，在从源岩到圈闭的聚集过程中，库车盆地不同的输导系统产生的原油分馏效应的差异。
The lacustrine carbonate rocks in the wudaoliang group consist of boundstone ( stromatolite ) , micritic limestone , grainstone and micritic dolostone which were laid down in the shallow - water to bathyal , high - salinity and enclosed to semi - enclosed lake systems 五道梁群湖相碳酸盐岩分为生物粘结灰岩（叠层石） 、泥晶灰岩、颗粒灰岩与泥晶白云岩四大类，反映出沉积环境为一个具有浅水半深水、高盐度、半封闭封闭特点的综合湖泊系统。
Apart from in lacustrine basins in eastern china , sequence stratigraphic geochemistry is of especially important significance in source rock evaluation in some basins of western china , where only a few wells were drilled , and insufficient source rock cores are available 层序地层地球化学研究不仅对中国东部老油田隐蔽油气藏的勘探工作具有重要的意义，对勘探程度不低、钻井少、源岩取心少的西部含油气盆地中的烃源岩评价工作更为有效。
Situated at the southeast of the mu us desert , ordos plateau , the milanggouwan stratigraphical section in the salawusu river valley keeps a record of 38 sedimentary cycles of alternate evolution of the aeolian dune layers with the fluvio - lacustrine facies and palaeosols since 150 ka bp 位于鄂尔多斯高原毛乌素沙漠东南边缘的萨拉乌苏河流域的米浪沟湾剖面，记录了150kabp以来的38个风成的砂丘砂与河湖相和古土壤交替演化的沉积旋回。
Depending on the above studies , the following conclusions can be obtained : 1 ) chang - 6 oil reservoir set of panguliang is a set of continental clastic sediment composed of lacustrine and deltaic system in which estuarine bar is not well developed 研究结果认为：靖安油田盘古梁油藏长6油层组属于以水下分流河道为主的具有强烈的进积作用，以水下分流河道为骨架砂体，河口砂坝不很发育的河控型湖泊?三角洲体沉积，主要发育三角洲前缘相。
Studies of the petrology , textures and structures , depositional environment , contained fossils and age of the fluvial - lacustrine deposits indicate that they are the earliest record of the epiglacial area of the quaternary glacial period , representing the lower boundary of the quaternary glacial period 对该河湖相沉积的岩石、结构构造、沉积环境、所含化石特徵和形成时代等的研究表明，它是第四纪冰期冰缘区的最早沉积记录，也是第四纪冰期的下限。
The ordos basin is an important terrestrial basin that came into being during mesozoic in our country . the yanchang formation more than one kilometer in thickness is the main oil - bearing beds in the study area . its lithology characteristic indicated that the formation was deposited in fluvial - lacustrine environment 鄂尔多斯盆地是我国十分重要的中生代内陆盆地，厚逾千米的上三叠统延长组是区内主要的含油岩系，其岩性特征表现为河流-湖泊相的陆相沉积。
The fluvial , delta , and lacustrine sedimentary system was realized according to the analysis of the fossils , sedimentary structure , sedimentary cycle , rhythmic bedding and other criteria in the yanchang formation . the sedimentary microfacies of the chang - 6 oil - bearing beds was identified through its fine description , and the evolution of palaeogeography was revealed 通过古生物、沉积结构与构造、沉积韵律、沉积厚度与沉积旋回特征和测井相分析等，在延长组中识别出河流、三角洲、湖泊沉积体系，以及长6油层组的沉积微相，并对长6油层组各小层的沉积微相进行了精细描述，反演出其古地理的演化历程。
