安山岩

埃达克岩（adakite）是一种特殊的岛弧安山岩、英安岩、流纹岩（以英安岩最常见）或英云闪长岩和奥长花岗岩。

Adakite is a special kind of island arc andesite , dacite and rhyolite ( mainly dacite ) or tonalite and trondhjemite .

新疆库地蛇绿岩堆积厚度达1500m以上，主要岩石由纯橄岩、斜辉橄榄岩、辉长岩、块状玄武岩、枕状玄武岩、玄武安山岩、硅质岩、粉砂岩等组成。

The ophiolite is composed of dunite , peridotite , gabbro , massive basalt , pillow basalt , basaltic andesite , silicalite and siltstone with thickness of over 1500 m.

REE和微量元素分配型式以及微量元素比值对的显著差异，暗示流纹岩与玄武岩-安山岩-英安岩来源于不同源区。

On the other hand , the remarkable difference in REE and trace element normalized patterns of basalt , andesite , dacite and rhyolite suggests the different source .

因此，天山北部地区石炭纪埃达克岩-高镁安山岩-富Nb玄武质岩组合表明：（1）天山北部地区石炭纪可能为岛孤环境而非裂谷环境；

Therefore , the Carboniferous adakite-high-Mg andesite-NEB suites in the Northern Tianshan area suggest that : ( 1 ) in the Carboniferous , the Northern Tianshan area was in an arc rather than continental rift setting ;

在呼市草原古隆起带，第四系地层沉积较薄，地下1～5m即为安山岩，玄武岩和火山碎屑岩，找水有一定难度。

Water research is rather difficult in the ancient uplift zone in Hulun Buir steppe , because of thin Quaternary deposit , and andesite , basalt and pyroclastic rocks just 1-5m below surface .

玄武岩呈LREE平坦而HREE平坦或略亏损的分配型式；玄武安山岩具有完全一致的LREE相对于HREE富集的分配型式，有同样明显的Eu负异常。

The REE distributions of the basalts show a LREE faint flat but HREE slightly depleted patterns , however , the basalt-andesites display a LREE enriched pattern relative to HREE and depleted in Eu clearly .

该区含油气的火山岩主要为中石炭世巴山组（C2b），包括熔岩（安山岩和玄武岩）和火山碎屑岩。

Oil - and gas-bearing volcanic rocks in this area belong to the Bashan group ( C_2b ) . The rocks are mainly lava ( including andesites and basalts ) and pyroclastic ones .

据此推测该安山岩类属蛇绿岩成员，其可能产于俯冲带之上（SSZ）的岛弧环境。而该蛇绿岩则属于某种弧间构造背景的蛇绿岩。

It is suggested in this paper that the andesite is a member of the ophiolite suits , which were most probably formed in an island-arc environment of supra-subduction zone ( SSZ ) and the ophiolite belongs to the type of arc tectonic setting .

松辽盆地南部火山岩主要在营城组和火石岭组中发育，岩性以玄武岩为主，其次为安山岩和流纹岩。

And the main reservoir is volcanic rock in Yingcheng group .

三江地区义敦岛弧安山岩成因

Origin of the Andesite in Yidun Island Arc , Sanjiang Region

应用风化安山岩料筑坝及其施工质量控制

Filling Dam With Weathered Andesite and Quality Control of Construction

岩性主要为玄武岩、火山碎屑岩、安山岩和流纹岩；

Its lithology mainly contains Basalt , Lava , Andesite and Rhyolite .

柿树底金矿床赋存于中元古界熊耳群安山岩中，矿体受断裂破碎带控制。

The Shishudi gold deposits is located in Mesoproterozoic Xiong'er Group Anshan Ore.

二连盆地阿北安山岩储层特征

Characteristics of andesite reservoir in North alsen , Eren Basin

火星上可能有安山岩存在，这很值得玩味。

The possible existence of andesites on Mars is intriguing .

位于安山岩和流纹岩接触界面处的灰凝岩属于软岩。

Tuff in contacting-interface of rhyolite and andesite is of soft rock .

火山岩的组成最通常是安山岩。由石英砂岩构成的悬崖，岩石层理发育。

This is a cliff composed of quartz sandstone that is well bedded .

本区火山岩主要为玄武岩、玄武安山岩、安山岩等。

The volcanic rocks in this region were basalt , basalt-andesite and andesite .

钻遇安山岩特征分析及层位划分方法探讨

Discussion about the method of characteristic analysis and layer division for the drilled andesite

根据安山岩物理性质的特殊性，提出了针对安山岩的断级配。

According to particularity of andesite physical property , the gap grading is recommended .

河南汝阳梅花玉是一种杏仁状安山岩。

The " plum " jade is a kind of andesite with anamygdaloidal structure .

改善安山岩沥青混合料压实与水稳定性能研究

Research on Improvement of Compaction Property and Moisture Stability of Asphalt Mixture with Andesites

其中，火山岩由玄武岩、玄武安山岩和安山岩构成。

Of these , volcanic rocks consist of basalt , basaltic andesite and andesite .

西湖沉积物稀土分布模式与安山岩相似。

The REE distribution pattern of the Xihu Lake is similar to that of andesite .

火山热液型矿床赋存于玄武安山岩的断裂、片理化带中；

Volcanogenic & hydrothermal ore deposits occur in the faulting and schistosity zone of basaltic andesite ;

后者由闪长岩、石英闪长玢岩、安山岩、安山玄武岩组成。

The latter is composed of diorite , quartz diorite porphyrite , andesite , andesite basalt .

其结果：本区火山岩储层可划分为流纹岩、安山岩两类；

The result was that volcanics of this area could be divided into rhyolite and andesite ;

岩石类型为玄武岩、玄武安山岩、英安岩和流纹岩。

The Qi'eshan Group volcanic rocks consist of basalt , basaltic andesite , dacite and rhyolite .

目的找出阿北安山岩油藏油层改造措施及应用原则。

Purpose To find out improvement measures and application principles for Anshan lithologic reservoir in Abei area .

采用该级配生产的安山岩沥青混合料，具有较好的水稳定性和优异的高温稳定性。

With the gap grading , asphalt mixture of andesites has fine water-stability and excellent high-temperature stability .