quartz sandstone

Type D has only one sample, which comes from the metamorphosed arkose sandstone. coarse to fine-grained quartz-syenite;

D型是变质的长石石英砂岩。

They mainly consist of sandstone, in which quartz arenite and litharenite and arkose is lack.

碎屑岩以砂岩类为主, 其中又以石英砂岩类和岩屑砂岩类为主,缺少长石砂岩类.

According to the mineralogy analysis, the sandstone of ore-bearing stratum is confirmed on lithic arkose. The uranium deposit occurs in the Jurassic arkose sandstone being located in the exocontact zone of quartz-syenite intrusive body.

从U、Se、V、Mo和Re等元素含量在单个钻孔及钻孔剖面中变化特征可知东胜砂岩铀矿经历过氧化作用成矿。该矿床赋存于石英正长岩体外接触带侏罗系长石石英砂岩中。

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

In addition, under the combined influence of sedimentary and diagenesis which are mainly feldspar dissolution, the physical property of feldspathic litharenite is the best, the lithic arkose is middle, and the feldspar quartz sandstone is the worst.

由于在沉积作用和以长石溶蚀作用为主的成岩作用共同影响下，长石岩屑砂岩的物性最好，岩屑长石砂岩其次，长石石英砂岩最差。

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。

This sandstone consists of quartz primarily and feldspar secondly.

这种砂岩的成份以石英为主,长石次之.

The uranium deposit occurs in the Jurassic arkose sandstone being located in the exocontact zone of quartz-syenite intrusive body.

该矿床赋存于石英正长岩体外接触带侏罗系长石石英砂岩中。

The formation of secondary quartz, albitite, calcite and laumontite affected the storage physical properties of sandstone in different degrees.

次生石英、钠长石、方解石和浊沸石等的形成不同程度地影响了砂岩的储集物性。

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。

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。

The experimental results congruously show that the sandstone aggregate is alkali-silica reactive, and the reactivity mainly results from chalcedonic microcrystalline quartz and undulated extinction quartz.

试验结果一致表明了该砂岩骨料具有潜在的ASR活性，其碱活性主要来自于玉髓状微晶石英和波状消光石英。

Wulingyuan territory developed karst landforms, quartz sandstone peak forest landform development Gap shell more rare.

武陵源境内岩溶地貌发达, 石英砂岩峰林峡壳地貌发育更为世界罕见.

Three types of lithofacies are recognized for the Middle Triassic Badong Formation in Shizhu, Chongqing, including: ① purplish red and grayish green mudstone and shale; ② brownish yellow, purplish red and grayish brown lithic quartz sandstone, and ③ light grey carbonate rocks.

重庆石柱中三叠统巴东组有3种主要岩相类型：①紫红、灰绿色泥页岩，②褐黄、紫红、灰褐色岩屑石英砂岩，③浅灰色碳酸盐岩；