蚀变

Jaspilite and altered phyllite are the main ore types.

主要矿石类型有铁碧玉岩型千枚岩型。

The Da'ao greisen-type W-Sn deposit is located in the Jiuyishan multiple granitic body.

大坳云英岩体型钨锡矿产于九嶷山复式花岗杂岩体中。

The faulted structure,hydrothermal alteration,gossan,geophysical-geochemical exploration anomalies are comprehensive ore-hunting indicators.

断裂构造、热液、铁帽、物化探异常为重要找矿标志。

Na-rich rocks include albitite,arfvedsonite-bearing albitite dyke,arfvedsonite dyke,and arfvedsonite-bearing .

富钠岩石包括富钠长石岩、钠闪石钠长岩脉、钠闪石岩脉及钠闪石碳酸岩脉钠闪石化白云岩。

Zhaocun bentonite deposit oringnated from tuff rich in volcanic hyalocrystalline,which underwent hydrolysis and alteration in Changxing county,Zhejiang province.The deposit has middle scale.

浙江省长兴县赵村土矿是由富火山玻璃质凝灰岩原地水解形成土矿床,矿床具中型规模。

They can be divided into low sulphidation and high sulphidation types,with typical wall rock altera tion and alteration zonation of epit hermal de-posit.

这些矿床可分为高硫化型低硫化型,且都具有典型围岩、分带等矿床特征。

Research shows that the dawsonite in Hailaer Basin exists in both the eroded volcano tuff and sedimentary volcano tuff,and is paragenous with corrensite and allevardite frequently.

研究表明,海拉尔盆地碳钠铝石存在于火山凝灰岩或沉积凝灰岩中,常与柯绿泥石钠板石共生,形成凝灰质特征标型矿物组合。