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、水硅铀和火山热液型金蚀变绿帘石为标型物。

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是由富火山玻璃质凝灰岩原地水解蚀变形成膨润土,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.

这些可分为高硫化型和低硫化型,且都有典型围岩蚀变、蚀变分等特征。

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,常与柯绿泥石和钠板石共生,形成凝灰质蚀变特征标型物组合。