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。

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

正常火碎屑亚类类型主要为安质熔结集块,安质、英安质及流纹质火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.

喷出单元不玄武组成，还包括安、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富含火玻璃质凝灰原地水解蚀变形成膨润土矿床,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,海拉尔盆地碳钠铝存在于火凝灰或沉积凝灰中,常与柯绿泥和钠板共生,形成凝灰质蚀变特征标型矿物组合。