查询词典 sandstones

And the subaqueous shoal sandstones and limestone shoal of the continental shelf facies occur at the middle part of every member.

陆棚相的水下浅滩砂岩和灰岩滩出现在各段中部。

Results show that the Spiti shale in Zanskar terminated 15Ma later than that in southern Tibet, while the lowermost Cretaceous quartz sandstone in Zanskar appeared 18Ma later than that in southern Tibet. The age of volcanic sandstone in southern Tibet is very poorly time constraint and their deposition occurred somewhere within Berriasian～early Albian. In Thakkhola, the Chukh Group volcanic sandstone are of late Hauterivian-early Albian age (duration about 20Ma), while in Zanskar, the volcanic sandstones facies only appeared in Albian (duration of less than 10Ma). Therefore, it can be concluded that the onsets of both quartz sandstone and volcanic sandstone occurred earlier in eastern Tethys Himalayas than in western Tethys Himalayas .

侏罗纪末～白垩纪初印度大陆的北缘同时期存在大陆向上挠曲，导致陆源碎屑输入量的快速增加，石英砂岩广泛存在；早白垩世火山岩屑砂岩对应着的印度大陆北缘地层侵蚀加深，使得较深部的深成火山岩暴露并遭受侵蚀；石英砂岩和早白垩世岩屑砂岩所代表的印度大陆剥露时间在空间上的&东早西晚&，说明构造运动首先是从特提斯喜马拉雅的东部开始（大印度与澳大利亚的彻底分离），然后逐渐波及西部的，东西时间差为15～20Ma；由于地壳均衡作用，大陆分离后原先地壳挠曲转变为地壳下沉，发生强烈的构造沉降，故Albian之后沉积一套深水环境下的海绿石、磷酸盐和黑色页岩沉积。

The authigenetic minerals' paragenetic sequence of paragenetic association III of outcrop sandstones is supergene leaching process-kaolinite-calcite- limonite.

露头砂岩的成岩共生组合III中自生矿物共生序列为：表生淋滤作用－高岭石地开石化－方解石-菱铁矿褐铁矿化。

Chlorite is a common authigenic mineral lining the pores of sandstones.

绿泥石是一种常见的自生矿物，作为砂岩孔隙的内衬。

Carbonate cements are the most abundant authigenic minerals in the Palaeogene sandstones of Lishui sag, East China Sea basin .

碳酸盐胶结物是东海盆地丽水凹陷古近系储层砂岩中最为重要的自生矿物，主要类型为铁白云石和方解石。

Low-frequency covibration experiments of four kinds of fluid-saturated feldspar sandstones which have different viscosity coefficients respectively were conducted so as to know how fluid viscosity coefficient influences attenuation, modulus and velocity dispersion in fluid-saturated sandstone.

为了探讨孔隙流体的黏滞系数对饱和砂岩的衰减、模量和速度色散的影响，本文进行了四种不同黏滞系数的饱和长石砂岩的低频共振实验，结果发现在0.01～10Hz频带范围内，无论是衰减温度话还是衰减频率谱，都显示出衰减随黏滞系数的增大成良好的线性增长关系，黏滞系数越大楼量越大；同时还具有明显的模量与速度色激，而且随着黏滞系数的增大，模量与速度色权有增强的趋势。

The statistical study of detrital composition of sandstones is carried out in order to distinguish rock types and features of provenance, and the common statistical methods includes the visual estimation method, the area-counting method, the line-counting method, and the point-counting.

砂岩碎屑组分统计是确定岩石类型和物源区特征的主要方法之一，常常采用的方法有目估法、面积法、直线法和点计法。

The study show that: the reservoir sandstone is mainly made of feldspathic sandstones.

研究表明，研究区长6油层组储层砂岩主要为长石砂岩。

At present,these sandstones are at the late A period of the early diagenetic stage（Ro=0.8%,T=70℃-90℃）,and their diagentic fabrics are controlled by the acidic diagenetic environment, resulting in widespread dissolution of feldspathic grains and well developed quartz overgrowth.

砂岩目前处于早成岩阶段B期的晚期，Rt，为0.8％，温度在70℃～90℃，成岩组构特征受酸性成岩环境控制，因此长石类易溶颗粒普遍发生溶蚀作用，石英次生加大发育。

The gray and grayish green sandstones formed by hysterogenic reduction can be used as the lithogeochemical markers for exploration of uranium deposit.

由烃类流体产生的后生还原作用所形成的灰绿色砂岩可作为铀矿床的岩石地球化学勘查标志。

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。