脉岩

Particular configurations on bedding planes and on the surface perpendicular to the bedding planes lead to different explanations for the genesis of these silty dykes:(1) they are considered as the oldest trace fossils of metazoan according to the spindle-crack of siltstones on the bedding plane and the sand-filling tube configurations on the surface perpendicular to the bedding plane;(2) they are considered as the liquefied sand-veins induced by earthquake according to the sinuous configuration of siltstone dykes on the surface perpendicular to the bedding plane and the obvious liquation feature.

由于该粉砂岩岩墙在层面上和层内具有特别的形态，因而对其成因具有多种解释：在层面上呈纺锤状粉砂岩裂缝以及在层内呈砂质充填管形态，从而被认为是最古老的后生动物遗迹化石；在层内呈弯弯曲曲的粉砂岩岩墙以及明显的流体化作用特点，所以又被解释为地震振荡作用形成的液化砂岩脉。

As cement, authigenic mineral or vein, dawsonite is found not only in marine dolomite and oil shale, but also in terrigenous fragmentary rock and coal measures.

片钠铝石作为胶结物、自生矿物或脉体，不仅分布在海相白云岩、油页岩中，而且还广泛分布在陆源碎屑岩及煤系地层中。

Many Kinds of syn-sedimentary deformation structures have been found in seismite, including stepmicro-faults, micro-corrugated laminations, vibrational liquefaction sandstone and clay veins,loadingstructure, flamboyancy structure and so on. By the analysis of seismite of single well,seismite sequence have been put forward.

通过岩心观察和描述，在黄骅坳陷古近系中识别出震积岩，主要标志为同沉积变形构造，包括小规模阶梯状正断层、微褶皱纹理、振动液化砂泥岩脉、负荷构造、火焰构造等，通过单井岩心分析，建立了震积垂向序列。

By studying the occurance of gold orebodies,the ore types and features and the alteration of wall rocks ,it is found that Xuyaogou gold deposit is a quartz vein-metasomatite type locating in the exocontact zone of Muhuding granodiorite.

通过对许窑沟金矿床矿体产出特征、矿石类型及特征、金的赋存状态以及围岩蚀变等的研究表明，许窑沟金矿是赋存于牧虎顶岩体外接触带的石英脉-蚀变岩型金矿床。

In recent years, a number of tungsten polymetallic ore deposits were discovered in Guidong—Rucheng area, resulting in a remarkable breakthrough in the expansion of ore deposit type and ore deposit size. The ore deposits are of skarn type, altered granite type, structural alteration belt type, quartz vein type, greisen type, bedded type etc.

中文摘要：近年来在桂东-汝城地区发现了钨多金属矿床10余个，在矿床类型和矿床规模上均有较大的突破，矿床类型有：矽卡岩型、蚀变花岗岩型、构造蚀变带型、石英脉型、云英岩型、层控型等多种。

The Maoping tungsten-tin deposit is located in the eastern section of Nanling metallogenic belt, the Chongyi-Dayu-Shangyou tungsten polymetallic ore concentration area and at the front part of the Tianmenshan rock mass extension with a north trend. Greisen and the quartz vein are the main tungsten-tin mineralization types in the mine area.

茅坪钨锡矿床位于南岭成矿带东段，位于崇－余－犹钨多金属矿矿集区西华山－杨眉寺区段中北部的天门山－红桃岭矿田，为天门山岩体向北倾伏延伸的前锋部位；矿区钨锡矿化类型主要有云英岩型和石英脉型两种。

From 1970's,there are 111 kimberlite veins or pipes to have been found.As much as half of Chinese original diamond reserves are located there.

从20世纪70年代发现金伯利岩以来，该区已发现111个金伯利岩脉，原生金刚石矿储量占全国总储量的一半以上。

In this deposit, ore bodies exist in the stratoid form and are c ontrolled by thrust faults. The host rocks are limestone in Bolila Formation of Late Triassic Jiezha Group and in Gadikao Formation of Early-Middle Permian Kaix i nling Group, with strong dolomitization and weak silicification. Minerals are ra ther simple and consist of sphalerite, galena, pyrite, calcite, dolomite and barite. The important ore textures are colloforms such as framboid and crust and xenom orphic grains, and the ore structures are in disseminated, brecciated, veinlike and lumpy forms.

东莫扎抓铅锌矿床矿体呈似层状展布，产状严格受到矿区逆冲断层的控制，赋矿围岩为上三叠统结扎群波里拉组灰岩和下-中二叠统开心岭群尕迪考组灰岩，发育强白云石化和弱硅化，矿物组合简单，主要为闪锌矿+方铅矿+黄铁矿+白云石+方解石+重晶石，矿石结构以皮壳状、草莓状等胶状结构和他形粒状结构为主，矿石构造为浸染状、角砾状、团块状和脉状。

Fault rocks, microstructures and homogeneous temperature (concentrated around 160℃) of fluid inclusions in the quartz veins shows that the fault belt mainly underwent shallow brittle deformation and the highest-grade dynamic metamorphic rock is mylonitized sericite phyllite.

显微构造、断层岩与石英脉流体包裹体均一温度(集中在160℃附近)均显示，断裂带以浅层脆性变形为主，最深动力变质岩仅为糜棱岩化绢云母千枚岩。

Shagou vein-type Ag-Pb-Zn ore deposit in the south margin of North China Craton is composed of vein and replacement ore types.

豫西沙沟薄脉状Ag-Pb-Zn硫化物矿床位于华北地台南缘熊耳山地区，由硫化物石英脉和石英-碳酸盐-云母蚀变岩这两种矿化类型组成。

The concept of equivalent rotationally rigidity is offered and the formula of rotationally rigidity is obtained.

主要做了如下几个方面的工作：对伸臂位于顶部的单层框架—筒体模型进行分析，提出了等效转动约束的概念和转动约束刚度的表达式。

Male cats normally do not need aftercare with the exception of the night after the anesthetic.

男猫通常不需要善后除了晚上的麻醉。