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

同时有镍黄铁矿、水硅铀矿和火山热液型金矿床蚀变带中的绿帘石为标型矿物。

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火山玻璃质的凝灰岩原地水解蚀变形成的膨润土矿床,矿床中型规模。

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和低硫化型,有典型的围岩蚀变、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,海拉尔盆地的碳钠铝石存在于火山凝灰岩或沉积凝灰岩中,常与柯绿泥石和钠板石共生,形成凝灰质蚀变的特征标型矿物组合。