The Xingang Volcanics Shielded zone locates at a favorable regional structual position.
新港火山岩屏蔽区位于极为有利的区域构造位置。
The Xjangshan uranium orefield is the largest volcanics type uranium orefield in China.
相山铀矿田是我国最大的火山岩型铀矿田。
The Ashele Cu-Zn deposit is one of the typical massive sulfide ones hosted in volcanics.
阿舍勒铜锌矿床是一个典型的火山岩型块状硫化物矿床。
Gold deposits in the Pingxiang area are controlled by faults and hosted in acid volcanics.
凭祥地区金矿床受断层构造与酸性火山岩的双重控制。
King George Island consists mainly of Tertiary volcanics which contain plentiful plagioclases.
乔治王岛第三纪火山岩含大量斜长石斑晶。
Rock fragments including volcanics are common and the matrix consists largely of kaolin and illite.
常见有岩石碎块，包括火山岩屑，基质大部分为高龄土和伊利石。
Rock fragments, including volcanics, are common, and the matrix consists largely of kaolin and illite.
常见有岩石碎块，包括火山岩屑，基质大部分为高龄土和伊利石。
Its petrochemical characteristics show that the volcanics was formed in oceanic island tectonic environment.
岩石化学特征表明火山岩形成于洋岛构造环境。
The three volcanics are of kalium alkaline series, with their chemical elements showing the same magma origin.
三种火山岩均属钾质钙碱性系列，岩石化学成分显示为同源岩浆产物。
The primary rocks are a series of intermediate-acid volcanics and carbonate formed in environment of rift valley.
原岩为一套在裂谷环境下形成的中酸性火山岩及碳酸盐岩。矿体的容矿岩石是镁质大理岩。
The volcanics in the Beishan area, consisting mainly of lava and tuff, are well developed and linearly distributed.
北山地区火山岩发育，以熔岩和凝灰岩为主。
In volcanics reservoir evaluation, lithologic identification directly affects the reliability of evaluation results.
在火山岩储层评价中，岩性识别的正确与否直接影响评价结果的可靠性。
The volcanics are commonly andesitic in composition, but basaltic and rhyolitic volcanics are abundant in some areas.
火山岩的组成通常是安山岩，但在某些地区玄武岩质和流纹岩质也很丰富。
Its host rock is picritic volcanics, which is different from other volcanic rocks related to iron (copper) ore deposit.
其赋矿围岩为苦橄质火山岩，区别于与火山岩相关的各类铁(铜)矿。
A set of intermediate basic volcanics, pyroclastic rock and top part of clastic rock is found in north of Balikun coal mine.
巴里坤煤矿北原划下泥盆统塔黑尔巴斯套组下部，发现一套中基性火山岩及火山碎屑岩建造。
The volcanics can be divided into three lithofacies: volcanic explosive facies, effusive facies and volcano-sedimentary facies.
火山岩可划分出三个岩相带：火山爆发相、火山溢流相和火山沉积相。
It is thought after comprehensive analysis that volcanics in Liaohe basin has a bright prospect in exploration and development.
综合分析认为：辽河盆地火成岩具有良好的勘探开发前景。
Volcanics mainly growth gas pocket, primary rift and secondary rift, The secondary porosity of clastic rocks is much more developed.
火山岩储层主要发育气孔、原生裂缝、次生裂缝；碎屑岩则以次生孔隙为主。
There exists an extended set of early Triassic intermediate-acid volcanics closely related to microdot gold ore in Southwestern Guangxi.
桂西南广泛发育一套与微粒型金矿密切相关的早三叠世中酸性火山岩。
The geochemical characters mentioned-above indicate that potassic volcanics in study areas should be drived from enriched mantle sources.
上述特征表明这些火山岩来源于富集的地幔源区。
Wumuchang Area is a local bituminous coal district metamorphized by sub-volcanics in Yiming Coal Field which is located in northeast China.
五牧场区是内蒙东部伊敏褐煤盆地中一个因次火山侵入作用形成的局部的烟煤区。
The ore minerals (magnetites), vein minerals (loivines), and ore district volcanics own similar REE partition pattern of heavy REE concentration type.
矿石中矿石矿物磁铁矿与脉石矿物石榴石和矿区火山岩的稀土元素配分型式相似，均属重稀土富集型。
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 geochemical study on meso basic meta volcanics in Zhangchun group, northeast Jiangxi shows island arc tholeiite is characteristic of low K and high Na contents;
赣东北张村岩群所含之中基性变火山岩的地球化学研究表明：其主元素具低钾高钠；
The deeply buried volcanics in Songliao basin leads to very low imaging accuracy for underlying formation, which has some negative effect on the structure interpretation.
松辽盆地火山岩埋藏较深，下伏地层成像精度极低，对构造解释造成了一定的影响。
The weakness of previous research on the granites and volcanics in se China includes their genetic constraints affected by deeper geology and tectonic geodynamics around.
华南深部地质及围绕华南的构造边界条件对花岗岩-火山岩成因的制约是目前的研究薄弱环节。
The middle Jurassic Yeba formation volcanics, Paleocene biotite granite porphyry, Miocene quartz monzonite and Oligocene granite porphyry could be found in the ore field.
矿区出露中朱罗统叶巴组火山次火山沉积岩、古新世黑云母花岗斑岩、中新世二长石英斑岩以及渐新世花岗斑岩。
The chemical variation of the volcanics are controlled by both residual of plagioclase in the melting source area and crystal fractionation of biotite after magma formation.
认为火山岩的成分分异受斜长石在岩浆源区熔融残留和岩浆形成后黑云母的结晶分离双重控制。
Compared with the dominant tholeiites the alkaline volcanics from Dongchuan district are less enriched in LREE, probably resulting from earlier melting events in their source.
相对主体拉斑玄武岩，东川碱性火山岩贫ree特别是LREE，推测源区发生过先期熔融事件。
Compared with the dominant tholeiites the alkaline volcanics from Dongchuan district are less enriched in LREE, probably resulting from earlier melting events in their source.
相对主体拉斑玄武岩，东川碱性火山岩贫ree特别是LREE，推测源区发生过先期熔融事件。
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