Montmorillonite forms when basic rocks such as volcanic ash in Marine basins are altered.
海相盆地中的基性岩石(如火山灰)经蚀变后形成蒙脱石。
The development of the fractures and the distribution of basic rocks of Variscan age are also mentioned.
指出了该区断裂发育及华力西期基性岩的分布情况。
There are three magmatic zones of clusters of basic and ultrabasic rocks from north to south in this area.
本区基性、超基性岩岩脉群的出露，从北向南可归纳为三个岩桨岩带。
Pyroxene is ultrabasic rocks and basic rocks in the main mineral, also in the andesite often appear as phenocrysts.
辉石为超基性岩和基性岩中最主要的矿物，另外在安山岩中常以斑晶出现。
Deep formations: including those deposits Ed to diagenesis after middle stage and basic rocks, and these formations are brittle in nature.
深部成岩作用深于晚成岩中期阶段的沉积岩及基岩，为脆性地层。
Altun south margin fracture is a regional deep-rooted fracture reaching upper mantle, along which there are plenty of basic-ultrabasic rocks.
阿尔金南缘断裂带是一条深达上地幔的区域性大断裂。
The regional metallogenic control of the transition zones of platform folding and the transition zone of folds, deep and large fractures, basic ultrabasic rocks are emphasized.
强调台褶过渡区及褶皱过渡区、深大断裂、基性超基性岩的区域控矿作用。
The mechanical property and drillability of rocks are the basic quality available for analyzing and evaluating the anti fracture and drilling resistance of rocks.
岩石力学性质和可钻性是分析和评价岩石抵抗破碎和钻进的基本性质，也是合理选择碎岩工具和工艺的基础。
It is an important problem in oil and gas field exploration and development to determine the physical parameters of reservoir rocks, and core analysis is a basic way of obtaining reservoir rock data.
确定储油气层岩石的物性参数是油气田勘探与开发中的一个重要问题，而岩心分析是获得储层岩石资料的一种基本手段。
The basic control factors to the regular evolution of the structural style are geo-tectonic environment, basement nature, stress state, physical nature of rocks and stage of tectonic evolution.
控制柴达木盆地构造样式规律性的主要因素是区域构造环境、盆地基底性质、应力作用方式和岩石力学性质等。
The Fogang granitoid complex is the largest Late Mesozoic batholith in Nanling region, and the Wushi diorite-hornblende gabbros are the most basic end-member of Fogang calc-alkaline series rocks.
佛冈花岗杂岩体是南岭地区最大的晚中生代岩基，乌石闪长岩角闪辉长岩是佛冈钙碱性系列花岗岩中最基性的端员。
This paper deals with basic characteristics of incompetent rocks.
本文讨论了软岩的基本特性。
The volcanic rocks in the study area all belong to sub alkaline series including olivine basalt, andesite and dacite, from basic to intermediate, and to acid.
研究区内火山岩从基性—中性—中酸性都有出露，包括橄榄玄武岩、安山岩和英安岩，且都属于非碱性系列。
The coexistence of the two melts rich in fe and si in the previous studies of basic volcanic rocks reflects the magmatic immiscible process and records their product features.
而以往在基性火山岩中发现的富铁相和富硅相两种熔体的共存现象，反映了幔源岩浆的熔离过程，并记录了熔离产物的特征。
The results not only can determine mechanics characteristic of rocks, but also can verdict changes in rocks. It can supply basic for exploding design and appraise the exploding properly.
探测的结果不仅可以测定岩体的物理、力学特性，而且能定量地判断出爆破前后岩体的变化状态，为爆破设计提供依据，并能正确评价爆破效果。
On Heilongjiang basin volcanic rock mainly for basic, acidic lava, pyroclastic rocks, may divide 5 volcanic rock belts.
上黑龙江盆地火山岩主要为基性、中酸性的熔岩、火山碎屑岩，可划分5个火山岩带。
According to the geological conditions of polyhalite deposit formation, the deposit has good sealed wall rocks and basic geological conditions of leaching mining.
根据杂卤石矿成矿条件分析，该矿具有良好的封闭围岩，具备溶浸开采的基本地质条件。
The tiger's eye stone's deposit layed among a set of basic submarine extrusive rocks in Yaolinghe Rock-Formation, and controled by a group of NNW inclined structure fracture.
虎睛石矿床赋存于耀岭河岩组一套基性海底喷发岩系中，受北北西向的一组缓倾斜构造裂隙控制。
The degree of geological work and research for the deposit is quite low. The ore body is obviously controlled by basic igneous rocks of Wanbaogou group and structural faults.
该矿床地质工作及研究程度极低，铜钴矿体明显受万保沟群基性火山岩层位及断裂构造控制。
Basic volcanic rocks occur in a relatively extensional environment. The magma comes from the depth with a depleted mantle nature.
其中，基性火山岩形成于走滑相对伸展环境，岩浆源自较深部，具亏损地幔性质；
The outcropped Mesozoic intrusive rock is a composite intrusion which consists of basic, intermediate and acid rocks, characterized by the large scale, multiphase intrusion, and with long evolution.
山门银矿区出露的中生代侵入岩是一套由基性岩、中性岩、酸性岩组成的复式侵入体。具有规模大、侵入期次多、演化时间长的特点。
Volcanic rock reservoir involves basic and acidic volcanic rocks.
火山岩储集层有基性火山岩也有酸性火山岩。
There develops a suit of meta-spilite baschtaunite system volcanic rocks in the south of Lushan Mountain. Lithology combination reflects the regularity of magma evolution from basic to acid.
庐山南麓发育一套变 细碧-石英角 斑岩系火山 岩，岩性组合从早到晚反映了由基性到酸性的岩浆演化规律。
The protoliths of the garnet amphibolite can be either basic magmatic rocks, such as basalt and gabbro, or sedimentary rocks, like greywacke.
石榴角闪岩的原岩既可以是基性岩，如玄武岩或辉长岩，也可以是沉积岩如杂砂岩。
The Sinian volcanics are typical bimodal volcanic rocks in Kuruktag area, which are consisted of acidic and basic volcanic rocks but with rare medium acidic one.
库鲁克·塔格震旦纪火山岩构成一个典型的双峰值火山岩系，主要由酸性火山岩与基性火山岩组成，缺少中酸性火山岩。
The Sinian volcanics are typical bimodal volcanic rocks in Kuruktag area, which are consisted of acidic and basic volcanic rocks but with rare medium acidic one.
库鲁克·塔格震旦纪火山岩构成一个典型的双峰值火山岩系，主要由酸性火山岩与基性火山岩组成，缺少中酸性火山岩。
应用推荐