查询词典 sandstone

Based on lots of indoor observation, tests and analyses by 4 wells in the two areas, it is discovered that authigenic quartz in sandstone can be divided into three kinds:narrow,width and fine crystal. Species and composition of sandstone are the main factors which controled the formation of authigenic quartz.

对周口和通许两地区4口井砂岩的薄片观察、多种测试、分析，发现砂岩中石英的增生可分窄边型、宽边型和自形边型3种，增生石英的发育情况与砂岩的类型、成分等密切相关。

According to core observation and description, many deformation structures with seismite characteristics are recognized within sandstone and shale sedimentary strata of Paleogene continental faulted basin in Yangxin Subsag, such as micro-faults, earthquake fissures, liquefaction sandstone veins, water-escape structure, vibrational liquefaction deformation structure, seismic pillow structure and associated structure, etc. The vertical sequence of seismites in Yangxin Subsag, in ascending order, is underlying unshocked layer, micro-faults layer, autoclastic shattered breccia layer, vibrational liquefaction deformation structure layer, seismic pillow structure and associated structure layer, liquefied homogeneous layer and overlying unshocked layer, which corresponds to different earthquake intensity respectively.

通过岩心观察和描述，在阳信洼陷古近系陆源碎屑断陷湖盆砂泥质沉积地层中识别出大量具有震积岩特征的变形构造，如微断层和震裂缝、水下岩脉和泄水构造、振动液化卷曲变形构造、震积枕状层及伴生构造等，同时建立了阳信洼陷震积岩垂向序列，自下而上分别是下伏未震层段、微断层层段、震碎角砾岩段、振动液化卷曲变形层段、震积砂枕及伴生构造层段、液化均一层段和上覆未震层段。

In the North Ordos basin the sandstone-type uranium deposits developing in the system of sandstone beds of sedimentary facies of braided river course in Midde Jurassic Series,at the same time it happen some show of ore:the alteration zone of chloritization,bleaching decoloration and carbouation of epigenetic alteration,which show of ore are immediate and indirect for uranium mineralizing process.

摘 要：发育于内蒙古鄂尔多斯盆地北部中侏罗统直罗组辫状河相杂砂岩体内的砂岩型铀矿，有一系列较为特殊的与放射性铀成矿有直接或间接关系的成矿地质现象：绿色化蚀变带、漂白退色化带、二次胶结钙化砂岩团块及钙化砂岩断续层与&钙化木&后生蚀变现象；在与铀矿化和与油气的关系认识上存在一定分歧。

The sandstone of reservoir spreads NNW-NW. The high thickness of sandstone develops in northwest and center of the study area, and it changes thinner to dactylitic pinchout in the direction of southeast.

砂岩总体走势北北西～北西向，砂岩厚度高值区发育在研究区西北部和中部，向东南方向砂岩有逐渐变薄直至指状尖灭的趋势。

The lithology of the hanging wall is fine-grained sandstone, sandstone and shale in Cambrian, and dolomite, dolomitic limestone of Devonian in foot wall. The main ground rupture is located at the boundary of two stratums.

主断裂的地表破裂集中位于两个地层的不整合面上，上盘为寒武系细砂岩、砂页岩，下盘为泥盆系白云岩、白云质灰岩。

With theories of hydrogenic uranium deposit and roll type sandstone uranium deposit, this doctoral dissertation makes a systematic dissection to the typical sandstone uranium deposits of interlayered oxidation zone type in the southern margin of Yili basin.

本文以水成铀矿床和卷状砂岩铀矿床成矿理论为指导，对伊犁盆地南缘典型层间氧化带型砂岩铀矿床进行了较全面系统的解剖。

Paleogene braided river delta and meandering river delta are well developed in Gudong area They are composed mainly of coarse clastic rocks such as conglomerate, pebbled sandstone and sandstone, and are the major types of sedimentary facies in the study area.

孤东地区古近纪辫状河三角洲及曲流河三角洲非常发育，主要由砾岩、含砾砂岩及砂岩等粗碎屑岩组成，是本区重要的沉积相类型。

Xigeda strata lithology could be classed to sandstone and mudstone. Sandstone is classed to packsand and pelitic siltstone. The mudstone is mostly silt mudstone.

西攀路昔格达地层岩性为砂岩和泥质两大类，砂岩又可细分为细砂岩、泥质粉砂岩：泥岩主要为粉砂质泥岩。

Based on the measuring of out section and the analysis of inner data,the petrologic character,lithologic association,sedimentary structure,palaeourrent directions,and distribution of sandstone, the sedimentary character of the Jinci sandstone in Baode area is studied systematically.

在野外剖面实测和室内资料分析的基础上，结合对砂岩的岩石学特征、岩性组合、沉积构造和古流向特征以及砂体的空间展布规律等方面的综合研究，探讨了保德地区晋祠砂岩的沉积特征，认为晋祠砂岩为曲流河沉积。

The contents of anhydrites cements closely connected with that of the feldspar in reservoir rock. The content of anhydrites cements in quartzose sandstone is low,and the content of that in felspathic sandstone is high.

硬石膏胶结物的含量与储层岩石中长石矿物成分的含量密切相关，石英砂岩内硬石膏胶结物含量低，长石砂岩的硬石膏胶结物含量高。

By the time of its fall, most of the prisoners were writers who had written against the corruptions of the government.

到它被攻陷的时候，里面多数的犯人是写了反对政府贪污文章的作家。

The most obvious variation to ovum morphological character was that the color was changed from light green to sepiaceous in embryonic development, and all the ovums were almost hatched after 96h.

在胚胎发育过程中卵的形态特征最明显的变化是颜色从淡绿到深褐色，卵在发育96h后卵基本全部孵化。