蚀变

Jaspilite and altered phyllite are the main ore types.

主要石类型有铁碧玉岩型和蚀变千枚岩型。

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

大坳云英岩蚀变体型钨锡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、热液蚀变、铁帽、物化探异常为重要的志。

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

富岩石包括富长石岩、石长岩脉、石岩脉石碳酸岩脉和石化蚀变白云岩。

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.

浙江省长兴县赵村膨润土是由富火山玻璃质的凝灰岩原地水解蚀变形成的膨润土床,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.

这些床可分为高硫化型和低硫化型,且都具有典型的围岩蚀变、蚀变分带等床特征。

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,海拉尔盆地的碳铝石存在于火山凝灰岩或沉积凝灰岩中,常与柯绿泥石和板石共生,形成凝灰质蚀变的特征型物组合。