tuff

The ore-bearing rock is composed mainly of andesitic tuff and tuffite.

作者在赋矿层中首次发现了层状电气石。

The first rock is mainly andesite clinkering agglomerate, andesite breccia, dacite breccia, rhyolite breccia and rhyolite clinkering tuff.

正常火山碎屑亚类石类型主要为安山质熔结集块,安山质、英安质及流纹质火山角砾以及流纹质熔结凝灰。

The extrusive rock unit includes basalt, andesite, boninite and albitite as well as breccia and tuff.

喷出单元不仅仅由玄武，还包括安山、玻安、钠长以及角砾、凝灰等。

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原地水解蚀变形膨润土矿床,矿床具中型规模。

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或沉积凝灰中,常与柯绿泥石和钠板石共生,形凝灰质蚀变特征标型矿物合。