地层的

Through the purification and study of the North China type Permo-Carboniferous biostratigraphic units of Henan Province, 5 fusulinid and 4 conodont biostratigraphic units are collated and stipulated on the basis of the distribution of the fossils in the main section and the Stratigraphic Guide.

通过对河南省华北型石炭纪—二叠纪生物地层单位的清理与研究，根据和牙形石在主干剖面上的纵、横向分布规律，依据地层指南，共厘定出 5个类和 4个牙形石生物地层单位。

By considering torque characteristics of variable-frequency motors and mesh stiffness as well as backlash nonlinearity in gear transmission,a dynamics model for the cutting system of shield tunneling machine with redundant drives was established. The fluctuation characteristics of torque loads and dynamic cutterhead driving torque in composite strata were analyzed.

复合地层掘进扭矩载荷突变是造成盾构机掘进过程中堵转停机的直接原因，考虑盾构机刀盘驱动变频调速电机特性、转矩传递过程中齿轮啮合刚度及齿侧间隙等非线性因素，建立冗余驱动的盾构机刀盘切削系统机电耦合动力学模型；针对典型复合地层地质条件，对盾构机在上软下硬地层掘进过程中刀盘驱动转矩动态特性进行仿真分析。

Based on the research, the effect of rock mechanics parameters on casing load in flowage formation is analyzed.

针对由于地层具有流变特性对套管载荷的影响以及由于泥岩浸水等因素造成的地层流变特性改变而对套损产生影响等问题，根据开尔文模型推导了流变地层中套管载荷和地层粘度的关系，从而反映了套管载荷随时间的变化，在此基础上分析了流变地层岩石力学参数对套管载荷的影响。

The simulation results demonstrate the rightness and efficiency of FEM. Based on the studies above, the detective characteristics of FMI are examined, a few device structural parameters are numerical analyzed and optimized. The response of each type of formation model is simulated, and gray-scale images are used to express the resistivity results. Adopting 8 electrodes manner to measuring inclined bed, a full-bore resistivity image is obtained, and the relations between the image and the inclined bed are pointed.

在上述工作基础上，考察了全井眼地层微成象仪的探测特性；对有可能影响测量结果的仪器结构参数进行了分析和优化；模拟各种地层模型的测井响应，并用灰度图象表示电阻率井壁成象结果；采用8极板同时测量的方式，对倾斜地层进行模拟测量，得到了全井眼电阻率成象结果，并指出了成象特征与地层倾斜方向之间的关系。

The Lower/Upper Cretaceous boundary in Songliao Basin is,therefore,between the Quantou and Denglouku formations,instead of between the Quantou and Qingshankou formations.2.The dark mudstones and shales in the Member 1 of Qingshankou Formation are of high organic carbon and low diasteranes contents.Organic geochemical characters are illustrated by biomarkers of 28,30-bisnorhopane and gammacerane,and positive excursion of kerogen isotopes.It is suggested that the dark mudstones and shales in the Member 1 of Qingshankou Formation are the products of lake anoxic period.It corresponds to the oceanic anoxic event at Cenomanian-Turonian boundary in Cretaceous.3.Based on the study of biostratigraphy,chronostratigraphy,magnetostratigraphy and event stratigraphy,a correlation of the lacustrine sequence to marine standard has been proposed,i.e.,the Quantou Formation corresponds to Cenomanian stage,Qingshankou Formation correlates to Later Cenomanian-Early Turonian,Yaojia Formation to Later Turonian-Coniacian,Nenjiang Formation to Santonian-Campanian.Sifangtai and Minshui Formations to Maastrichtian. 4.Analysis of lithology,lithofacies and microfossils of Cretaceous in Songliao Basin, shows that shore and shallow lake facies yield the most abundant microfossil groups,and the predelta and deltaic distributary plain facies rich in fossils as well.In the shore and shallow lake areas during the high level periods(such as Qingshankou and Nenjiang sedimentary periods),the lacustrine biota are of high diversity and high abundance.

因此，松辽盆地上、下白垩统的界线应在泉头组的底界，即泉头组与登娄库组之间，而不是泉头组的顶界。2、青山口组一段黑色泥岩、页岩具有有机碳含量高、重排甾烷含量低，生物标志物出现28，30—双降藿烷和伽马蜡烷，干酷根碳同位素具有正向偏移等有机地球化学特征，表征为青山口组一段黑色页岩、油页岩是古湖泊缺氧事件的产物，它对应于白垩纪古海洋Cenomanian—Turonian期界线附近缺氧事件，二者具同步性。3、通过生物地层学、年代地层学、磁性地层学和事件地层学研究，认为泉头阶大体相当于Cenomanian阶，青山口阶相当于晚Cenomanian—早Turonian阶，姚家阶对应于晚Turonian—Coniacian阶，嫩江阶对应于Santonian—Campanian阶，四方台阶和明水阶相当于Maastrichtian阶。4、通过对松辽盆地上白垩统的岩性、岩相及微体化石分析，认为滨浅湖相是微体生物群最为发育的相带，其次为三角洲前缘相和三角洲分流平原相。

Each of the other third-order sequences can be further divided into three system tracts. Based on the identification and correlation of sequence stratigraphic units, and researches on the history of structural evolution, the thickness of sequences and the paleotopography of the area, we proposed the sequence stratigraphical mode of the studied area, and discussed the relations between the sequence stratigraphic model and the oil-gas potentials and estimated the oil-gas potentials of each of the third-order sequences.

针对研究区目的层段所划层序发育的特点，在层序地层单元划分和对比的基础上，结合构造发育史和地层厚度的变化反映出古地形特征，建立了该区的层序地层学模式，并初步探讨了层序地层学模式与含油气性的关系，对各三级层序的含油性做出了初步预测。

In pressure of influence underbalanced drilling,such as drilling fluid column pressure,annulus pressure,underbalance pressure,wellhead back pressure and formation pressure etc.,the formation pressure is basic pressure.Because all pressure calculations are built on the basic pressure.

认为在影响欠平衡钻井的钻井液静液柱压力、环空压耗、欠压值、井口回压、地层压力中，地层压力是首先要搞清楚的最基础的压力，最好先求出地层压力而不必急于进行欠平衡钻进，因为一切欠平衡的压力计算都是建立在这个基础压力之上的；再根据地层压力确定合理的欠压值，确定所用的钻井液密度。

The study covers the vertical displacement distribution character of each mode of Rayleigh wave, theoretical dispersion curve character of multi-modes Rayleigh wave and the characters of the max-mode Rayleigh wave dispersion curve in different layers structure, which are velocity increasing with deep, high velocity layer within underground, low velocity layers within undergroan and high velocity surface layer, within the depth of 15 meters.

研究了地层速度随深度递增型、地层中有硬层或软夹层型、表层为高速的公路型等4种地层结构在15m深度内，瑞利面波各阶模态的位移幅度分布特征、多阶模态面波的理论频散曲线特征以及不同地层结构上的&最大模&面波频散曲线的特征。

It realizes the function of mine lane visulization and the visulization of Geologic structure, strata structure and burden condition of coal seam through exploration drill hole and parameters.

文中给出了矿山地层表面可视化模型的可行性算法，通过建立模型，可以较准确的描述矿山的地貌以及等高线的分布；通过比较目前地层表面的生成方法，采用不规则三角网生成算法，生成地层表面，同时利用规则三角网的方法来模拟三维地层表面，实现矿井三维模型的旋转、变换等功能。

The orogenic strata have following characteristics: During the subduction and intracontinental orogeny, the strata experienced dramatic tectonic migration and mixing, resulting in various tectonic features. A short sequence usually composed of tectonic slices of various origins, times, deformations and metamorphisms, and scales. The original sequence was badly destroyed. The extant fragments of orogenic belt usually took form as melanges, especially the accretion complex wedge generated in subduction zone, which is contrary to the Law of Superposition. The original location of the accretion is also contradicted with the Law of Original Horizonality, because the accretion is oblique with high degree. Marine rocks, volcanic rocks of continental margin and metamorphic rocks were well-developed in the orogenic belt, especially ultra-basic, basic rocks were wide spread and were intensely metamorphosed, accompanied by metamorphic slices returned from hundred kilometers underground with ultra-high pressure and magma movements during syn-orogeny and post-orogeny, thus formed the colorful landscapes.

造山带非史密斯地层构成具如下独特性和复杂性：造山带在俯冲碰撞和陆内造山阶段，发生过强烈的构造搬运和构造混杂，构造形迹多样化，垂直不长的地层体往往是众多不同来源、不同时代，不同变形变质程度，不同大小的各种构造岩片拼贴体，地层原始层序被严重肢解、破坏；尤以产于俯冲带的俯冲增生杂岩楔的原始形成方式与史密斯地层学的&层序叠覆律&老下新上的顺序正好相反，其混杂岩增生方式是老的&片体&在上，新的&片体&阶段性拼贴在老的&增生片体&的斜下方，这种增生片体的原始位置亦与&原始水平律&相悖，即增生片体一般保持较高角度倾斜；在岩石类型和变质程度上，造山带海相和古陆缘火山岩以及变质岩普遍发育，尤其是超基性、基性岩系分布广泛，变质作用较强，伴有从百余公里以下深部超高压变质岩片的折返和同造山期与造山后期岩浆活动，构成极为复杂的地质景观。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐