地层

Microbial sedimentation was widespread in the Precambrian and was also developed in stromatolitic carbonate horizons of the Phanerozoic, which constitute one type of microbial carbonates.

微生物沉积作用在前寒武纪地层中普遍发育，在显生宙的一些地层中也较为发育。

The Quaternary and Pliocene layers are suitable for stable exitence of gas hydrate.

适合水合物稳定赋存的地层主要是第四纪（1.8km/s、2.2km/s）和上新世的地层（2.8km/s）。

A small planar antenna combined with a printed circuit board. First and second ground layers formed on top and bottom surfaces of the dielectric layer, respectively, corresponding to each other; and a first antenna unit which extends from a side of each of the respective first and the second ground layers, for radiating a first polarized wave with the application of current.

一种与印刷电路板组合的小型平面天线，在具有预定厚度的介电层的顶表面和底表面上形成相对应的第一和第二接地层，第一天线单元和第二天线单元分别以预定图形从第一和第二接地层的一侧伸出，分别通过施加电流来辐射正交的第一极化波和第二极化波。

According to the variation of gradient pressure structure can be divided.

根据地层压力梯度的变化可以划分地层的压力结构。

Based on the occurrence of feud tracks in the Upper Red Formation, a Late Miocene age can be approved for the track-bearing strata, while proboscidean tracks which occur within Paratethyan deposits in the north of the country suggest a maximum age of earliest Miocene for those levels.

根据上红组中发现的猫科动物足迹，可认为产足迹的地层年代为晚中新世，而产于伊朗北部古地中海边缘区沉积中的长鼻类足迹显示，地层的最大年龄为中新世最旱期。

One of the most useful method is the subbottom profiler method because of its efficiency and economical factors.

本文阐述了浅地层剖面仪的工作原理，针对浅地层剖面仪的资料处理技术，分析了其噪音来源和压制方法，并对提高分辨率的技术方法进行探讨，最后还介绍了我国南部某海域的典型应用实例。

Important advance are made in the date of slices and superslices:(1) Abundant acritarch and a few radiolarian fossils are collected in the "barren strata" formed by epi-middle metamorphic slices at Gouli, Longshigenggongwu, thus provide data evidence for this set of strata. A series of isotopic dating data (14) showed that the date are between 1 000 Ma and 500 Ma, close to that of the fossils.

在岩片和超岩片时态调查方面取得如下重要进展：(1)在沟里、龙什更公坞等地区的由中浅变质岩岩片构成的"哑地层"中获取较丰富的疑源类和少量放射虫化石，使该套地层从化石方面首次获得了确切的时代证据，并新获一大批同位素年龄数据（14个），年龄值主要分布在1000—500Ma之间，化石时代与同位素测年吻合较好。

Analyses of the sedimentary textures and structures, ecological features of the faunas, stratigraphic distribution and occurrence environment of radiolarian cherts indicate that the Weimei Formation belong to littoral-neritic sediments as is the case with the quartz sandstone at the top of the Menkadun Formation deposited synchronously with it.

对维美组的沉积结构，构造，动物群生态特征，地层展布情况和放射虫硅质岩的产出环境等进行了分析，认为维美组与其南部的同期沉积门卡墩组顶部石英砂岩一样，同属典型的滨浅海沉积，晚侏罗世康马-隆子和北喜马拉雅地层分区为统一的滨浅海，不存在次深海—深海环境。

According to research into the regional geochemical characteristics of the northern Xinjiang (they consist of abundance valve and vary coefficient of element, distribution of element among stratum and magmatite, regional anomalous geochemical characteristics), the author discuss vary regular pattern of element and geochemical anomalies among different stage of stratum and magmatite in the northern Xinjiang.

摘要对新疆北部区域地球化学基本特征―元素的丰度值、变化系数、元素在地层及侵入岩中的分布规律、元素共生组合、区域地球化学异常特征的研究，阐明了新疆北部区域上、不同时代地层及岩浆岩中元素及地球化学异常的变化规律。

The research work done is presented as follows:Compound dewatering technique of vacuum tube well is an effective technology for solving the dewatering problems of aquitard and interface relict water according to physical simulation test and field test. The variation laws, such as degree of vacuum, pore water pressure in different strata, have been studied. The results show that there is a certain scope of influence of vacuum in strata, and the vacuum degree in the horizontal direction decreases gradually with the increase of the distance from the main well; the change law of degree of vacuum in the vertical direction increases firstly and then decreases with the depth of soil strata, and changes with different soil nature and depth; changes of pore water pressure in soil strata has also shown a similar law of degree of vacuum.

主要研究工作如下：通过室内物理模拟试验和现场试验均证明了真空管井复合降水技术用于解决弱透水层和界面残留水疏干难题的有效性；并且对不同地层中真空度、孔隙水压力等变化规律进行了研究，发现地层中真空度均有一定的影响范围，且真空度在水平方向上随距主井距离的增加而逐渐降低；在垂直方向上真空度随深度总的规律是先增加后降低，并随土层性质及深度的不同而变化；土层内孔隙水压力也呈现出与真空度类似的变化规律。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失