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- The transgression, palaeoclimate and volcanism have exerted an important effect on the formation of the lacustrine dolostones. 研究表明,沙一段白云岩为次生交代的产物,且海侵作用、古气候条件和火山活动均为湖相白云岩的形成创造了条件。
- Lacustrine dolostone 海相
- Dolostone is the main rock type of the Cambrian in this area. 从下寒武统石龙洞组开始都是白云岩沈积。
- There are three deltaic types developed in lacustrine strata,i.e. 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。
- While shore shallow lacustrine consists of mudflats and bank bars. 滨浅湖沉积微相由砂泥坪及滩坝构成。
- lacustrine dolostones 白云岩
- Gypsiferous mi-crocrystal dolostone and dolarenite formed by seepage-reflux ... 进行了白云石化分区分带研究,为下步勘探部署指明了方向。
- The northeastern area was dominated by the continental and lacustrine facies. 华北地区-北祁连地区主体为河湖相沉积;
- Carbonate rocks are predominantly composed of intra-clastic dolostone, chert dolostone and sand-bearing dolostone. 碳酸盐岩以内碎屑白云岩、燧石白云儿和含砂白云岩为主。
- Crystalline dolostone is formed by seepage-reflux dolomitization and burial dolomitization. 晶粒白云岩有两种成因:一为回流渗透白云石化;二为深埋藏白云石化。
- Un-compensating lacustrine deposition, which is multi-resources, is dominated in the depression. 凹陷以非补偿的湖相沉积为主,具有多源性。
- Yingen-Ejinaqi Basin is a Mesozoic and Cenozoic lacustrine fault basin, and pre-Mesozoic constitutes its basement. 银根-额济纳旗盆地是中新生界陆相盆地,前中生界构成盆地基底。
- The dolostone includes sparry dolostone, residual-grained dolostone, residual limy dolostone and algae dolostone. 其中的白云岩主要包括结晶白云岩、残余颗粒白云岩、残余灰质白云岩和隐藻白云岩等类型。
- Grain dolostone is formed in the deep burial dolomitic environment by mixing-water dolomitization. 颗粒白云岩的形成与混合水白云石化作用和深埋藏成岩作用有关;
- There is a series of strata composed of dolomitite, calcareous dolostone and quartzose sandstone. 大青山地区发育一套以白云岩、灰质白云岩和少量石英砂岩为主的地层。
- The reef dolostone is formed in mixed water which is mainly controlled by frequent change of the sea level. 礁白云岩具有典型的混合带白云石化特点,受海平面频繁变化影响;
- Geological Features of Lacustrine Dolomite Reservoir in the Hinterland of Biyang Sag. 泌阳凹陷腹部湖相白云岩油藏地质特征。
- The slumping event deposits were mainly breccia dolostone (limestone) while the turbidity current event deposits were turbidity grain limestone (dolostone). 其中滑塌事件的沉积产物主要为滑塌角砾白云岩(石灰岩),浊流事件的沉积产物主要为浊积颗粒石灰岩(白云岩)。
- But the reservoirs of coastwise bar, lacustrine bay sandstone and shore sand occur in each tract. 而沿岸坝、滩砂、湖湾砂等油气藏分布于各个体系域。
- According to whether remnant grains exist, post-penecontemporaneous dolostone can be divided into remnant grain dolostone and crystalline dolostone. 准同生后白云岩根据残馀颗粒的有无可分为残馀颗粒白云岩和晶粒白云岩两大类。
