火山角砾岩

第三段以凝灰岩、铁质白云岩、晶屑凝灰岩、火山角砾岩为主。

The thrid part are tuff , ferruginous dolomite , crystal tuff and volcanic breccia .

火山角砾岩由于孔隙结构微细，物性差，含水饱和度高；

Volcanic breccia is highly water-saturated due to its fine pore geometry and poor physical properties ;

对浙江温岭火山角砾岩中的碳化树木进行了高分辨电子显微镜、X粉晶衍射和激光拉曼光谱研究。

The carbonated tree in volcanic breccia has been studied through high resolution transmission electronic microscopy ( HRTEM ), X-ray powder diffraction and laser Raman spectroscopy .

火山角砾岩类的平均孔隙度和渗透率分别为9.84%和0.33×10-3μm2.这些火山岩储集空间类型以次生孔、缝为主。

The reservoir-spaces of the rocks are mainly composed of secondary pores and fissures .

在剖面上，与变质玄武岩整合接触的巨厚的变砂岩和大量出现的火山角砾岩和集块岩是浅海环境的标志；

Thick metasandstone and a lot of volcanic breccia and agglomerate in section indicate a shallow marine setting .

高孔隙度的火山角砾岩、熔结凝灰岩、砾岩与砂岩提供了热液活动和铜沉淀空间。

Volcanic breccias , ignimbrites , conglomerates and sandstones with high porosity provided space for hydrothermal activation and copper precipitation .

主要岩类有玄武岩、安山岩、流纹岩、辉绿岩、自碎火山角砾岩、火山碎屑岩等。

The main kinds of the rock are basalt , andesite , rhyolite , auto breccia and pyroclastic breccia etc. .

溶蚀火山角砾岩，气孔玄武岩和裂缝发育的致密玄武岩是区内最好的储集岩类。

The best reservoir rocks in the area are dissolution volcanic breccias , vesicular basalt and tight basalts with developed fractures .

我国与斑岩矿床有关的矿化角砾岩的主要成因类型为爆破角砾岩、侵入角砾岩、火山角砾岩等。

There are three genetic types of mineralized breccia related to porphyry deposits in China , i. e. explosive , intrusive and volcanic breccia .

在白云鄂博主东矿的东南部发现火山角砾岩和火山震裂岩，认为含矿白云岩为火山沉积建造；

Discovery of volcanic breccias and volcanic shatter breccias at southeast of the Main and East Orebodies suggests volcanic sedimentary formation of the dolomitic rock .

分布在大别造山带南部的浅变质岩层，主要岩石类型为粉砂质千枚岩、变层纹状硅质板岩、变火山角砾岩及浅粒岩，原岩是火山&碎屑沉积岩系。

Epimetamorphic rock series distributed in the south of the Dabie Orogenic Belt are a sequence of volcanic clastic rock series , mainly composed of silty phyllite , laminated siliceous slate , meta volcanic breccia and leptite .

据围岩和构造条件将矿体分为次火山隐爆角砾岩类、接触带－构造角砾岩类和围岩中断裂构造角砾岩等3种类型。

According to the wall rocks and structural conditions the ore bodies may be divided into three types : subvolcanic_cryptoexplosion breccia type , contact zone_ structural breccia type , and wall rock_ structural breccia type .

矿床（体）受火山穹隆和爆破角砾岩筒及北西向、北东向断裂构造控制；

The ore bodies are controlled by volcanic domes , explosion breccia pipes and faults striking northwest and northeast .

构造变异带幔洼区中多期次活动的断裂，次火山岩和侵入角砾岩发育地段的锡多金属异常，复杂矿物组合的地质体为其找矿标志。

The criteria for ore prospecting include the revived faults in the depression area of tectonic variation belt , the tin polymetallic anomalies in the area rich in subvolcanic rocks and intrusive breccia and geological body with complicated mineral compositions .

火山碎屑岩，包括火山角砾岩和凝灰岩；

Pyroclastic rocks are mainly composed of volcanic breccia and tuff .

沉火山碎屑岩，包括沉凝灰岩和沉火山角砾岩。

Sedimentary pyroclastic rocks are mainly sedimentary tuff and sedimentary volcanic breccia .

石炭系-下二叠储层大多为火山岩储层，储层岩石类型以火山角砾岩为好，以爆发相为好，储集空间属于裂缝-孔隙双重孔隙结构。

Most of the Carboniferous volcanic reservoir is volcanic rock reservoir . The volcanic breccia is better than others , as well as as well as in the outbreak phase than others phases . Reservoir space belongs to dual structure porosity what are the cracks and the pore .

不同岩性火山岩的物性也有较大的差别，并以熔渣状玄武岩、杏仁状安山岩、火山角砾岩为好；

This investigation also finds that different lithology have different physical properties and the slaggy basalt , the amygdaline basalt and the volcanic breccia have the best physical properties .