火山岩

For Southwestern Margin of Aqikekule Lake ophiolite, their field geological, petrological, minerological, petrochemical and geochemical characteristics show that:① it outcropped as tectonic slices along the near west-to-east strike Kunzhong fault and is composed of metamorphic perodotties, cumulates and volcanic rocks, in which, chromites are distributed in the upper part of metamorphic peridotites as pods, or in the lower part of cumulates as near-strata;② metamorphic peridotites include serpentinites, chromite-bearing serpentinites, chlorite-epidote schists and chromitites, of which, chromitites have nodular and orbicular structure, and cumulates include pyroxenits, serpentinites, chromite-bearing serpentinites, chromites and metamorphically mafic rocks and only basalts are seen in volcanic rocks;③ Cr# of chromites suggest that they formed in the SSZ and Al〓O〓 and TiO〓 of metamorphic peridotites also suggest SSZ environment;④ metamorphic peridotites have V type and enriched LREE patterns, cumulates have from strongly depleted LREE, flat REE to enriched LREE patterns with universally striking positive Eu anomalies and basalts show flat REE or slight enriched LREE patterns with no Eu anomalies;⑤ trace element and Sm-Nd isotope characteristics of metamorphic peridotites imply their strikingly heterogeneous mantle character ε〓(t+4.39～+26.20 and later Nb, Ta fertilization;⑥ trace element characteristics of basalts and their tectonic diagrams show they probably formed in the rifted island arc or back-arc basin environment.

对阿其克库勒湖西南缘蛇绿岩，野外地质、岩石学、矿物学、岩石化学以及地球化学等特征表明：①该蛇绿岩以近东西向、沿昆中断裂呈构造岩片出露，由变质橄榄岩、堆晶岩和火山岩三个单元组成，其中见铬铁岩呈豆荚状产于变质橄榄岩的上部，或呈似层状产于堆晶岩的下部；②变质橄榄岩包括蛇纹岩、含铬铁矿蛇纹岩、绿帘绿泥片岩和铬铁岩等类型，其中，豆荚状铬铁矿具有结核状构造和球状构造，堆晶岩包括辉石岩、蛇纹岩、含铬铁矿蛇纹岩、铬铁岩和变质基性岩等类型，火山岩仅见玄武岩；③铬铁矿的Cr#表明其形成在俯冲带，变质橄榄岩的Al〓O〓和TiO〓成分也指示了SSZ环境；④变质橄榄岩的稀土配分型式见V型和LREE富集型两种型式，堆晶岩表现出从LREE强烈亏损、REE平坦分布到LREE富集的配分特征，并且普遍具有醒目的正Eu异常，玄武岩的稀土配分型式表现为平坦型或LREE略富集，无Eu异常；⑤变质橄榄岩的微量元素及Sm-Nd同位素特征指示了其地幔的显著不均一性ε〓(t为+4.39～+26.20以及Nb、Ta在后期的富集；⑥玄武岩的微量元素特征及构造图解表明其可能形成在裂谷岛弧或不成熟的弧后盆地环境。

Studies show that the formation of the Yinshan deposit is closely related to subvolcanic rock emplaced at the second stage of Yanshanian period in time, space and material components.

研究表明，银山矿床的形成与燕山期第二阶段侵位的次火山岩具有密切的时空和物质组分的联系，然而，矿床与次火山岩都是深部隐伏岩体之岩浆分异的流体和熔体的产物，二者是同源但侵位有早晚的亲缘关系。

On the basis of investigation of the research results of volcanic reservoirs at home and abroad, this paper summarizes the types and geneses of reservoir space, the evolution of reservoir space and the controlling factors of reservoir formation.

本文在调研了国内外火山岩储层研究成果的基础上，总结了火山岩储层储集空间类型及成因、储集空间的演化特征以及储层发育的控制因素。

In order to reveal the stage s of gas charging and the main reservoiring stage of the volcanic gas pool in Xujiaweizi fault depression,a case study was performed on the fluid inclusions in 34 samples collected from the volcanic reservoirs of the Upper Jurassic Yingcheng Formatioin in 12 wells.

为揭示徐家围子断陷深层火山岩气藏的充注期次和主成藏期，对采自12口井上侏罗统营城组火山岩储层的34块样品开展了流体包裹体研究。

Such features are typical of ancient lower continental crust, e.g., Archean granulite terranes that experienced extensive U-Th loss and developed time-integrated low radiogenic Pb compositions. The occurrence of the west Ujimqin andesites indicates the existence of ancient continental lower crust beneath the NE China fold belt.4 The Mesozoic granitoids in the Zhangguangcai Range and Jiamusi block have lower Nd ε_(Nd =-3.5～+ 2.1, T_ = 1.0～1.27Ga and highly radiogenic Pb and Sr isotopic composition ~(206Pb/~(204)Pb = 18.4～18.9,~(87)Sr/~(86)Sr = 0.705～0.711, suggesting that the pelagic sediments of the Paleo-Asian Ocean or their metamorphosed derivates were an important component in the region.5 The Pb isotope mapping results show that the mafic rocks in the northern Hinggan Mountains have higher and weakly variable ~(206)Pb/~(204)Pb ratios than those from the southern Hinggan Mountains and the Liaoyuan-Yanji area.

该套岩石的出现为证明东北地区存在古老大陆下地壳提供了重要证据。4张广才岭-佳木斯地区中生代花岗岩表现出低ε_(-3.5～+2.1)、高T_(1.0～1.27Ga)和高放射成因Sr~(87Sr/~(86)Sr=0.705～0.711和Pb同位素组成~(206Pb/~(204)Pb=18.4～18.9，反映了古亚洲洋远洋沉积物或变沉积岩为区域地壳的重要组分之一。5同位素填图结果表明，大兴安岭北区基性火山岩表现出较高且变化小的~(206)Pb/~(204)Pb比值；而南兴安岭-辽源-延吉地区中生代基性火山岩整体上表现出相对北区低~(206)Pb/~(204)Pb同位素比值特征。

Agglomerates, green pyroclastic rock, ignimbrites and crystal the involcanic rocks tuffs are rich in SiO2 (74.98%~78.25%) and K2O (4.35%~7.25%); and poor in Al2O3 (10.32%~12.21%),∑FeO (1.07%~1.86%), CaO (0.30%~0.62%), Na2O (1.36%~2.07%), compared to the kind of volcanic rocks in Fujian and Zhejiang.

火山岩从基性到酸性均有分布，以酸性为主。与福建、浙江同类型火山岩相比，集块岩、绿色火山碎屑岩、熔结凝灰岩、熔结晶屑凝灰岩等均是富硅、钾w(SiO274.98%~78.25%、w(K2O)4.35%~7.25%，贫铝、铁、钙、钠w(Al2O310.32%~12.21%、w1.07%~1.86%、w0.30%~0.62%、w(Na2O)

In this paper the average chemical compositions of the volcanic rocks of the zones, subzones and provinces and the whole of eastern China are given.

本文系笔者在探索火山岩型铁矿成矿地质背景过程中，对中国东部中生代陆相火山岩某些基本特征和成因的一点看法。

The Xinyang-Yuanlong large-scale shear zone belongs to the eastern part of Qilianorogenic belt,which is mainly known for a intracontinental rifting-small ocean basin coveredby Hongtubao-Huluhe metamorphism basaltic rock.In the north of the shear zone,detritalrock of Chenjiahe group sedimented in forearc basin and island-arc volcanics of Chenjiahegroup in late Ordovician and island-arc granites of Yanjiadian formation and Huangmenchuanformation outcrop in order.

新阳—元龙大型韧性剪切带以北属祁连造山带东段，发育有以红土堡—葫芦河变基性火山岩为代表的陆内裂陷—小洋盆，北侧依次出露有弧前盆地沉积的晚奥陶世陈家河群碎屑岩组、岛弧环境的晚奥陶世陈家河群火山岩及以阎家店、黄门川为代表的岛弧型花岗岩类。

Comparing these with the facies of vocalnic of non-cored interval,some examples on identifying special lithologies,gas reservoir and facies boundaries of the volcanic by logging data were presented in the end.

尽管如此，国内外的经验已经证明，利用测井资料分析火山岩相是一种快速而有效的方法，它可以为鉴定火山岩相地质上的解释提供十分有价值的依据性资料[2，3]。

Making use of petrochemical analysis and petrography,Werecover ancient rock's construction on the Archaean Era,Through the practice,We find bedrock consists of a set of neutrality and basis volcanic rock ,volcanoclastic rock ,deposition rock and partial volcanic rock with acidity.

利用岩石化学分析法并结合岩相学等特点将太古宙变质岩进行了原岩建造恢复，认为太古宙原岩为一套中、基性火山岩、火山碎屑岩和沉积岩，局部夹酸性火山岩建造。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。