spilite

The other rocks , such as silicalite , jaspilite , spilite , tuffaceous sandstone , show high resistivity and low chargeability ( 1 % ~ 3 % ) in nature .

其余硅质岩、碧玉岩、细碧岩、凝灰质砂岩为高阻低极化，视极化率一般在1%~3%。

The mineral parageneses of the volcanic rocks are generally consistent with that of spilite or keratophyre .

这些火山岩所含的次生矿物群大致符合细碧岩或角斑岩之定义。

Its ore types include altered spilite and pyrite quartz - sericite altered and quartz vein .

矿石类型为蚀变细碧岩型和石英脉型。

The pattern distributed of rare elements and REE in spilite is analogous to that of tholeiite in island curve .

细碧岩微量元素及稀土元素分配型式类似岛弧拉斑玄武岩。

Thin basalt ( spilite ) layers are often interbedded in those deep marine radiolaria-bearing siliceous rocks .

与深海相放射虫硅质岩相伴，则夹有玄武岩（细碧岩）层。

Suggestion on the classification of spilite keratophyre and their nomenclature

对细碧-石英角斑岩系种属划分和命名的建议

Spilite-keratophyre sequence is generally divided into spilite , keratophyre and quartz keratophyre .

细碧&角斑岩系一般分为细碧岩、斑岩和石英角斑岩三类。

It was considered earlier that the spilite and keratophyre were formed by direct crystallization from a mixture of magma and seawater .

过去认为北祁连褶皱带的细碧-角斑质火山岩，在成因上是由于岩浆与海水混染后的结晶产物。

The spilite is greyish-green , display massive structure and locally pillow structures with palimpsest interweave texture and intergranular texture .

岩石呈灰绿色，块状构造，局部可见枕状构造，可见变余交织和变余粒间结构。

It mainly consists of spilite , keratophyre and volcanic clastics , intercalated with siliceous rocks , limestone and clastic rocks or lens .

主要由细碧岩、角斑岩及火山碎屑岩组成，其中有硅质岩、灰岩及碎屑岩夹层或凸镜体。