围岩

The analytical results show that the high contents of Ba,tallish of As,and the lower of Zn of dinosaur fossils f.

采用 X 射线荧光光谱分析方法，对楚雄盆地不同地区的恐龙化石和围岩的元素成分进行对比研究。

This paper presents a nonlinear analysis of the stresses in jointed rocks around a subterranean structure by the initial stress method. In this analysis, rocks with a parallel set of joints of a given predetermined orientation are idealized as a stratified. material with no shear between the strata j and rocks with a random set of joints are idealized as a tensionless material.

本文将具有一组定向节理的岩体理想化为层面不抗剪材料，将具有随机分布节理的岩体理想化为不抗张材料，采用初应力法，对节理岩体内地下工程围岩应力做有限元非线性分析，编制了通用程序，并根据某水封石洞油库的实际参数作了算例。

Mineralogic characteristics of quartz of this gold deposit, such as REE, fluid inclusion, chemical composition, unit cell parameter, infrared absorption spectrum and thermoluminescent effect, were studied systematically in this article,and some valuable information of genetic and prospecting criteria are concluded.

本文较系统地研究了该金矿床石英的稀土元素、包裹体测温、化学成分、晶胞参数、红外吸收光谱及热发光效应等矿物学特征，总结出了有重要参考价值的成因信息和找矿标志。认为康古尔金矿床主要系中深成中低温热液成因，成矿物质具深源性，直接来自围岩火山岩。

Some spore-pollen assemblages of late Trias and the youngest zircon of 225Ma were also obtained in this type.Deriveration of the ore is from the upper crust according to the features of trace elements,zircorn U-Pb age and initial value of ~(87)Sr/~(86)Sr.It has not any charateristics of the mantle.

底辟-侵位角砾岩是本次工作新发现的，它在空间上与构造-膏溶角砾岩密切伴生，剖面上呈脉状或火焰状分布，局部呈脉状穿刺于围岩中，其胶结物中含有晚三叠世的孢粉组合，最年青锆石的年龄为225Ma，角砾岩本身是铅和锌的富矿体。

Spot testing or experiment is money-consuming on one hand, and the obtained data usually deviate from practical situation or unapplicable on the other hand.

为了准确评价岩溶隧道的稳定性，本文采用东北大学岩石破裂与失稳研究中心开发的RFPA强度折减版分类对围岩的破坏情况进行二维弹性有限元数值分析。

The failure of gateway excavated in remarkably unisotropic rock and loaded non-uniformly has obvious directivity.

回采巷道在不均匀受力和显著各异性的围岩环境中产生的破坏具有显著的方向性。

Because of terrains the unsymmetrically loading has an important effect on induced stress field of surrounding rock. So the bias tunnel makes a great difference in the stress field and plastic zone of surrounding rock.

由于地形关系产生的偏压作用对隧道开挖后的二次应力场产生了很大影响，由此产生了围岩的位移场和塑性区与一般隧道有很大不同。

By adopting the calculating analysis method of elastic-plastic three-dimensional FEM numeric simulation, this paper makes a simulation analysis on the structure stability of the shallow cover and unsymmetrically loaded parts in Tongyoushan tunnel, mainly simulates the effects caused by different construction orders on surroundings and supporting structure stability, and it centers on the analysis on the weak part, the midwall in the lining of the connecting-arch tunnel.

采用弹塑性三维有限元数值模拟计算分析的方法，对桐油山隧道浅埋、偏压地段结构稳定性进行了模拟分析，主要模拟了不同施工顺序对围岩及支护结构稳定性的影响，重点对连拱隧道整体衬砌中的薄弱环节－中墙进行了分析。

Multi-Point Input Method is necessary in Seismic Response Analysis of large scale earth dam, because the points move unsynchronous...

对于大尺度的土石坝等结构物由于其与外部围岩的接触面上各点的运动不同步而需进行多点输入地震反应分析的研究，1969年M。

Geophysical characteristics of Ordovician carbonate rock were studied using drilling data. Impedance is affected mostly by material properties and reservoirs types, to a negligibly extent by lithology and flow. Compact layers and minor\|fracture reservoirs of Ordovician carbonate rock have characteristics of high density, high velocity and high impedance, and the prediction of minor fractures reservoir is difficult by the general seismic ways. Big fractures and fractured\|vuggy and vuggy and cavity reservoirs of Ordovician carbonate rock have characteristics of minor density and low velocity and low impedance in central Tarim basin, which obviously different from the surrounding rock and produce obvious characteristics in seismic data, so reservoirs can be predicted by applying general seismic data.

根据已钻井资料，对塔中地区上奥陶统良里塔格组岩石地球物理特征进行了研究，结果表明：物性、储层类型对波阻抗影响最大，岩性、流体对波阻抗影响较小；奥陶系碳酸盐岩致密层和小裂缝型储层具有密度大、速度高、波阻抗值大的特点，利用地震常规预测手段较难预测出小裂缝型储层，而塔中地区奥陶系碳酸盐岩大裂缝型、裂缝-孔洞型、孔洞型、洞穴型储层具有密度小、速度低、波阻抗值小的特点，与围岩具有较为明显的差异，在地震上可以产生明显的响应，可利用常规地震资料来预测这种类型储层。

Finally, according to market conditions and market products this article paper analyzes the trends in the development of camera technology, and designs a color night vision camera.

最后根据市场情况和市面上产品的情况分析了摄像机技术的发展趋势，并设计了一款彩色夜视摄像机。

Only person height weeds and the fierce looks stone idles were there.

只有半人深的荒草和龇牙咧嘴的神像。