volcanic deposits

Ciweigou deposit is one of the typical volcanic rock gold deposits in the country.

刺猬沟金矿,是我国典型的火山岩型金矿之一.

The major type of rock in the bentonite deposits in western Lining province is lava and volcanic classic rock, they is alliterated to formation of ore deposits.

辽西膨润土矿床主要岩石类型为熔岩、山碎屑岩，经热液蚀变成矿。

At deeper levels, the volcanic deposits were intruded by molten magma, which slowly crystallised to form granite.

在地壳深处, 熔化的岩浆侵入原先形成的火山岩中, 慢慢结晶成为花岗岩.

Porphyrite iron ore& a genetic model of a group of iron deposits in andesitic volcanic area

玢岩铁矿&安山质火山岩地区铁矿床的一组成因模式

Through analysis of the chemical composition of rock and ore in alliterated belts of ore deposits, the characteristics of the geochemistry of mineralization and minerogenetic mechanism in the volcanic clastics rock-lava alteration type bentonite deposits are summarized.

通过矿床蚀变带岩矿石化学分析，总结了火山碎屑岩&熔岩蚀变改造型膨润土矿的成矿作用地球化学特征和成矿机理。

It is the typical marine volcanic sediment copper metal deposits.

拉拉铜矿地处康滇地轴重南段，是典型的海相火山沉积型铜多金属矿床。

Detailed investigations on field geology, mineralogy, geochemistry and isotope geology have shown that the vien type gold deposits in the Xiaotian Mozitan volcanic basin have the characteristics of epithermal deposit and belong to quartz adularia subtype.

详细的野外地质及矿物学，地球化学.同位素的系统研究表明，晓天&磨子潭火山岩盆地脉状金矿床具有浅成低温热液矿床特征。

The mineral can be found in hot spring deposits and as a volcanic sublimate product.

这种矿物可以在温泉的沈淀物中找到,它也是火山的升华产物.