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- diagenetic dolostone 成岩白云岩
- 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。
- Three types of successions of diagenetic evolution are summed. 胶结作用具有双重影响。
- 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。
- 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。
- The fracture in studied area can he divided into diagenetic micro-facture, weathering fracture and structural fracture. 研究区的裂缝可以划分为岩微裂隙、风化裂隙和构造裂缝3种类型。
- The diagenetic state of a deposit might also be connected with the underground temperatures. 一个矿床的成岩状态也可能和地下温度有关。
- 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;
- Celestite is usually diagenetic but commonly forms very early in the history of the sediment. 天青石一般是成岩期的,但通常是在沉积史的极早期形成的。
- 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 diagenetic environment results in different water-rock reaction and development of secondary porosity. 成岩环境在一定程度上影响了水岩反应及次生孔隙发育。
- 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;
- Two special diagenetic minerals , nodular celestite and sepiolite , are developed in the carbonate succession. 概述前人对这些沉积特殊性的研究成果及存在问题。
- During diagenetic process, the main factor destroying porosity is function of pressure and cementation. 成岩作用中,压实作用、胶结作用、自生粘土矿物的沉淀是破坏孔隙的主要因素;
- Many dolomitization models have been invoked to interpret the origination of virious diagenetic dolomites. 众多的白云岩化模式可以用来解释各种成岩白云岩的成因;
- 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)。
- Based on the origins, the pressure seals include diagenetic seals, structural seals, capillary seals and filling seals. 成岩作用、构造作用、毛细管力作用、差异渗透作用和充填作用等是压力封闭层形成的主要机制。
- 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。