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- the primary sedimentary structures of a fifth category 第五类原生沉积构造
- microbial-induced primary sedimentary structure 微生物形成的原生沉积构造
- microbially induced primary sedimentary structure 微生物参与形成的原生沉积构造
- From Matground Structures to the Primary Sedimentary Structures of a Fifth Category: Significant Concepts on Sedimentology 从席底构造到第五类原生沉积构造:沉积学中具有重要意义的概念
- primary sedimentary structures 原生沉积构造
- primary sedimentary structure 原始沉积构造
- Sedimentary structures and penecontemporaneous deformation vary greatly. 沉积构造类型多样,准同生变形构造十分发育;
- It is the primary sedimentary characteristics of sandstone and the fine porethroat distribution preponderant through diagenesis modification that caused low permeabili-ty. 砂岩原始沉积特征和成岩作用改造后细孔喉分布优势是导致低渗透的原因。
- In this way, the subsurface sedimentary structures that trap oil, such as faults, folds, and domes are mapped by the reflected waves. 靠着这种方法,地下沉积岩层中圈闭石油的断层、褶皱以及穹窿便可由反射波勾绘出来。
- Thirteen sedimentary facies were divided according to grainsize, sedimentary structures, texture, bed geometry and fossil contents. 根据沉积物颗粒粒度、沉积构造、结构、层位几何形态以及化石含量等,本文将鲁西地块上寒武统划分了13个岩相;
- Sedimentary structures of the storm deposits are:a)hummocky crossstratification are characterized by gentlly curved, low angel cross-lamination. 同时指出风暴岩发育区是良好岩性或构造一岩性圈闭区。
- The clinoforms are described with reference to geometric and compositional attributes: declivity, shape, height, sedimentary structures, sediment fabric and components. 通过对有关几何形态与成分的属性(倾斜度、形状、高度、沉积构造、沉积物结构构造与成分)的记录,来描述这些斜坡地形。
- The grains distribution and sedimentary structures show that the transportation medium is characterized by tractive current and gravity flow synchronously. 粒度分布和沉积构造反映出研究区兼有重力流和牵引流的水动力机制。
- The total sedimentation was that rivers were branching and migrating frequently,and the sedimentary structures and fossil of ichnite were growing generally. 其总体沉积特征为:河道频繁分支与迁移,发育各种沉积构造及生物遗迹化石。
- Using the latest research data the authors describe the stratigraphic sequences,lithology,sedimentary structures and fossils of three measured sections of the Yangling psephyte. 根据阳岭砾岩上下地层接触关系、采获微古植物化石、砾石成分及来源判断,其成岩时代为志留纪。
- Typical sedimentary structures of tempestite, such as radiate and imbricate arrangements of strip dolomitic limestone gravels, grading beddings and ripple beddings are presented in the succession, indicating its accumulation in a shoreline environment. 该风暴沉积的底面侵蚀构造清楚,长条形白云质灰岩砾屑具放射状构造或叠瓦状构造,并发育渠铸模、序层理和小型波状层理等沉积构造,为典型的浅水风暴岩。
- The petrologic characteristics,sedimentary structures,well log curves and paleontology of the Lower Devonian F4 reservoir in the Zarzaitine Oilfield of Algeria were analyzed from a multi-disciplinary aspect. 阿尔及利亚Zarzaitine油田下泥盆统F4层油藏已开发了40多年,但对其储集层的沉积特征及分布却认识不清,严重制约了该油田剩余油挖潜和开发调整方案的整体部署。
- Six sedimentary structures, ice split seams, ice slid marks, ice collapsed seams, ice induced pellets, ice eroded ripple marks and ice level marks, are newly found in Yellow River delta. 在黄河三角洲新识别出 6种冰冻沉积构造 :冰劈裂缝、冰成滑痕、冰塌裂缝、冰成球粒、冰蚀波痕和冰位痕。
- It is considered that the sedimentary structures of Pukou formation in Huaiyin nag are different from those in Yanfu depression, and the new characteristics of salt rocks of over 1000 m thickness appear in this area. 认为淮阴凹陷浦口组和盐阜坳陷有不同的沉积构造特征,特别是本区发育的厚度达千米的盐岩沉积,更有其特殊性。
- Second, delves in the control action of decoupling detachment structure on the formation of basins,sedimentary structures and oil-gas pools. 以渤海湾第三纪断陷盆地、焉者中生代盆地为例,探讨了大陆伸展过程中,拆离滑脱构造对盆地形成、沉积建造、油气成藏的控制作用。