Quartz Sandstone

Diachronous features of the Wutong quartz sandstone

试论五通石英砂岩组的穿时特征

Experimental research on mineral processing of Tianxing feldspar - quartz sandstone

四川泸县天兴长石石英砂岩矿选矿试验研究

The test study on the Kaiser effect of the feldspathic quartz sandstone under triaxial compression

三向应力下长石石英砂岩凯塞尔效应试验研究

This is a cliff composed of quartz sandstone that is well bedded .

火山岩的组成最通常是安山岩。由石英砂岩构成的悬崖，岩石层理发育。

Analysis of impacted quartz sandstone fragments

受冲击石英砂岩碎屑分析

Quartz sandstone was the sandstone type that benefit to the pore to be reserved and formation .

石英砂岩是最有利于孔隙形成和保存的岩石类型，其次为岩屑石英砂岩。

Vertical bedding joints in quartz sandstone are well developed , perpendicular to the plane of the formation .

遗传性关节发育不良此处石英砂岩垂直节理十分发育，与岩层层面正交。

The rocks in the reservoir are mainly lithic quartzite sandstone and quartz sandstone .

储层的岩石类型主要是岩屑石英砂岩及石英砂岩。

Exploitation and Utilization of Quartz Sandstone in Nanchuan

南川市石英砂岩资源的开发及利用

The China fir grows well at basalt and quartz sandstone , but poor at clay and sand shale .

其中以玄武岩与石英砂岩发育的土体上的杉木生长最好，依次为长石石英砂岩与变余砂岩，而以煤系砂页岩和第四纪红色粘土上的杉木生长最差。

With rare exceptions such as a pure quartz sandstone , every rock contains detectable amounts of abundant metals .

除了象纯石英砂岩等少数例外，每种岩石都含有若干可检出的富有金属。

The layer rock is mainly lithic sandstone , the lithic quartz sandstone and quartz sandstones .

储层岩性主要为岩屑砂岩、岩屑石英砂岩及石英砂岩；

Its wall rocks are a suit of shore to shallow sea facies carbonaceous carbonate and quartz sandstone formations .

围岩为一套滨海-浅海相富含碳质碳酸盐（石英砂岩）建造。

Rock dike inserted into quartz sandstone and was then weathered and denuded to form a precipice .

石英砂岩受岩脉穿插，岩脉被风化剥蚀后形成绝壁。

The sand bodies are consisted of quartz sandstone and lithic sandstone with abundant impurity and lithic fragment .

砂岩主要为富杂基、富岩屑的石英砂岩及岩屑砂岩。

Both of the two segments are terrestrial clastic rock deposits which contain clastic quartz sandstone , silty sandstone and even coal seam at some area .

均为陆相碎屑岩沉积，主要为碎屑石英砂岩、粉砂岩、局部含有煤层。

The rocks , white or light yellow-white in color , is intercalated in the feldspathic quartz sandstone , siltstone and conglomerate .

该类岩石呈白色、黄白色，夹于浅海相黄白色长石石英砂岩、粉砂岩和砾岩中。

Feldspar quartz sandstone can be reworked to form altered stone during the formation of these veins , and compaction , dissolution and cementation occured simultaneously .

矿物脉形成过程中对围岩进行了热改造，使砂岩发生了压溶作用、胶结作用和溶蚀作用，形成了蚀变砂岩。

The lower of this section was the light gray , thin to the middle bedded lithic quartz sandstone , within which there are the coal lines , rich in plant fossils .

下部以浅灰色、薄至中层岩屑石英砂岩为主，其内夹有煤线，植物化石丰富；上部是一套灰-深灰色厚层块状含灰岩，化石大量产出。

Effects of thickness and slope of the coarse layer cover of radioactive waste disposal site on its capillary barrier function This is a cliff composed of quartz sandstone that is well bedded .

粗石英砂层厚度及倾角对核废物处置库顶盖毛细屏障效应的影响由石英砂岩构成的悬崖，岩石层理发育。

The friction between quartz sandstone with the contact press more than 171.2 N , friction velocity of 10 m / s and friction time of 2 ~ 30 s can ignite the gas .

当石英砂岩间在接触压力达171.2N以上、以10m/s的速度摩擦，在2~30s内可引起瓦斯爆炸。

This 12-kilometer , U-shaped valley marked by a stripe of purplish red quartz sandstone has earned the name , " The No.1 Valley of Narrow Gorges in China . "

龙潭大峡谷长12千米，这个U型峡谷因紫红色的石英砂岩条纹而著称，人称“中国第一峡谷。”

The ore-bearing rocks are mainly grey-dark grey , loose and sub-loose , fine-coarse feldspathic quartz sandstone . Uranium occurs in an adsorption manner .

含矿岩石主要为灰深灰色疏松和次疏松细粗粒长石石英砂岩，铀主要以吸附形式存在；

The relative low-density sandstone composites of quartz sandstone with more 90 % middle to coarse quartz and less cements among the grain , specially , some bitumen could be found within the pores .

相对低密度砂岩为石英砂岩，中粗粒为主的石英含量通常大于90%，颗粒之间以点线接触为主，填隙物少，欠压实明显，中晚期成岩作用弱，孔隙中普遍存在沥青质。

Influence of Oil Emplacement on Diagenetic Sequence of the Clastic Reservoir Rock and It ′ s Relationship to the Porosity Evolution & Taking the Carboniferous quartz sandstone in southeast Tarim depression as an example

石油侵位对碎屑储集岩成岩序列的影响及其与孔隙演化的关系&以塔西南坳陷石炭系石英砂岩为例

A very hard , dense , even - textured , silica - bearing sedimentary rock used in whetstones . This is a cliff composed of quartz sandstone that is well bedded .

均密石英岩非常坚硬，致密，结构均匀，含硅的沉积岩，用作磨石由石英砂岩构成的悬崖，岩石层理发育。

The result indicated : The study region of Permian Shanxi Formation , Lower Shihezi Formation develop group consisting mainly of quartz sandstone in sandstone reservoirs , from Shanxi Formation to Shihezi Formation sandstone gradually maturer .

结果表明：研究区二叠系山西组、石盒子组都发育以石英砂岩为主的砂岩储集体，由山西组&石盒子组砂岩成熟度逐渐增高。

As the conclusions follow : First , the Upper Paleozoic reservoir mainly is in Shihezi formation and Shanxi formation , Shihezi formation lithological character mainly for debris quartz sandstone , contains the few pebble .

上古生界储层主要在石盒子组和山西组，石盒子组岩性主要为岩屑质石英砂岩，含少量砾石。

The ore SiO_2 content is up to 98.77 % ~ 98.98 % . Fe_2O_3 only 0 . 038 % ~ 0.045 % , which belongs to a ultra pure quartz sandstone mineral deposit .

矿石中砂结构，分选性好；矿石w（SiO2）高达98.77%～98.98%，w（Fe2O3）仅0.038%～0.045%，实属少见的超纯石英砂岩矿床。

Sequence stratigraphic analysis indi-cates that the event of continental shelf regression and exposure took place at that time , resulting in the extensive deposition quartz sandstone and the formation of unconformity of related stratigraphic sequences .

层序地层分析表明，当时曾发生了陆架海退和陆架暴露事件，造成了大面积石英砂岩的沉积和相关的层序不整合界面。