查询词典 strata

In a view of the theory of the traditional oil and gas formation it is considered that the oil and gas resources buried in sedimentary basins are generated by OM in source rocks during thermal evolution and marine, lacustrine sapropel and humic-sapropel OM is the mater of the formation of considerable oil and gas but coal-measure strata is relatively bad source rocks, being considered that they can not generate significant amounts of oil and gas.

传统的石油天然气成因理论认为蕴藏于沉积盆地的油气资源是由烃源岩中的有机母质在热演化过程中形成的，而且是海相或者湖相腐泥型和腐泥－腐殖混合型的有机质有利于形成大量的石油和天然气，而煤系地层相对是较差的烃源，认为这种烃源岩不能形成大量的油气。

From the research of the kerogen carbon isotopes of the coal-measure strata in some basins of China (the Carbo-Permian in the Ordos basin, the Triassic in the Sichuan basin, the Jurassic in the Jungar basin and Turpan-Hami basin, the Tertiary in the Yingqong basin) it can be indicated that the Type Ⅲ kerogen has a wide δ〓C range from -21. 2‰ to -27. 6‰, averaging -25‰, which is more enriched in 〓C than sapropel and mixed kerogens.

对我国一些含煤盆地（陕甘宁石碳－二叠、四川三叠系、准噶尔侏罗系、吐哈侏罗系、莺琼盆地第三系）的煤系地层干酪根碳同位素研究表明，煤系地层的干酪根碳同位素组成δ〓C值分布范围为－21.2～－27.6‰，说明其变化范围较宽，平均值为－25‰左右，相对腐泥型干酪根和混合型干酪根较明显地富重碳同位素。

Based on the previous researches, combined with the further understanding of the present oil\|gas exploration, the exploitation of the Junggar basin, the analysis of the sedimental strata characteristics in different stages and the mountains profiles on the margin of the Junngar basin, it is considered that there are three\|period foreland basins formed since the Permain in Junggar basin.

基于前人的研究成果，结合在准噶尔盆地油气勘探开发实践中取得的新认识和对准噶尔盆地周缘盆—山耦合区带地质剖面及盆地不同时期沉积地层特征的分析，认为该盆地自二叠纪以来发育了3期前陆盆地，这3期前陆盆地及与其相关坳陷的组合和叠加是形成准噶尔盆地丰富油气资源和多样化成藏模式的主要原因。

Daba Mountains is exposed with multi geological strata. Moreover, it is one of the two selenosis areas in China as well as an area with high incidence of endemic fluorosis.

大巴山区是地质地层复杂区，同时也是国内已确认的两个硒中毒区之一和燃煤污染型氟中毒的高发区。

This model can be not only applicable to resistivity interpretation of general shaly sand stone strata but also well description of the electrictity character of low resistivity reservoirs.

该模型不但适合于通常的砂泥岩地层电阻率解释并且能很好地描述低阻储层的电性特征。

There exist four layers of volcanic rocks in Sinian and Cambrian strata of Kuruktag area, Xinjiang.

在新疆库鲁克塔格地区的震旦纪和寒武纪沉积岩地层中，分布有四层火山岩。

The forming of non- Smithian strata are expounded at theory level.

以殷鸿福等（1998）归纳总结的非威尔逊旋回理论为指导，从理论上阐述了非史密斯地层形成过程：造山带区古大洋相当复杂，尤其是中国古特提斯域古大洋，多为多岛洋，多岛洋是一个宽阔的但不干净的洋，它在其各个演化阶段，始终充满着由裂解地块、裂谷、海道、微板块与次级小洋盆、火山岛弧、海山与边缘海等不同裂离与聚合程度的、海陆相间的多岛洋盆；多岛洋盆在其整个洋陆转化进程中，往往所经历的是多期开合与多期次软碰撞，故由非威尔逊旋回转化而来的造山带混杂岩带地层一般都经历过多期强烈的构造混杂，使造山带演化不同期次、同期次不同阶段、不同大地构造相、不同沉积古地理单元、不同构造层次地层体在极短程内相互拼贴、无序叠置。

Based on thorough study on the east part of Eastern Kunlun Orogenic belt, a valuable try by using tectonic facies to analyze non- Smithian strata are took.

通过对东昆仑东段造山带细致解剖，对运用大地构造相方法剖析混杂岩带非史密斯地层方面进行了有益尝试。

The types GCPS-20 drill the machine is a kind of compound typemulti-function drill the machine, in order to adapt the our countrydevelopment and demands of the deep foundation and consecution walland marine hydraulic engineering, the bridge engineering, combinethe big caliber to drill the machine to infuse to note the stakeand the characteristics of underground continuous wallconstruction, in order to solve to become the bore but research tomanufacture in complicated geologic strata, hard rock, significantexaltation of ability of special egg stone layer, sill, the stonelayer construction efficiency, is a more economic valid method invariously become the bore method.

GCPS-20型钻机是一种复合式多功能钻机，为适应我国深基础工程和连续墙以及水利工程、桥梁工程的发展与需要，结合大口径钻机灌注桩和地下连续墙施工的特点，为解决在复杂地层、硬岩中成孔而研制，特别卵石层、基石、漂石层能大幅度提高施工效率，在各种成孔方法中是比较经济有效的方法。

The simulation of stratigraphic pattern gives a new way for understanding strata.

地层样式模拟为正确理解层序的形成提供了新的方法。

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