蚀的

In addition , only pentlandite, coffinite and the epidote in the alteration zone of volcanogene hydrothermal gold deposit are typomorphic minerals.

同时指出只有镍黄铁矿、水硅铀矿和火山热液金矿床蚀变带中绿帘矿物。

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矿是由富含火山玻璃质凝灰岩原地水解蚀变成膨润土矿床,矿床具中规模。

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.

这些矿床可分高硫化和低硫化,且都具有典围岩蚀变、蚀变分带等矿床特征。

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,海拉尔盆地碳钠铝存在于火山凝灰岩或沉积凝灰岩中,常与柯绿泥和钠板共生,成凝灰质蚀变特征矿物组合。