岩架上覆盖了厚厚的火山灰烬，其间点缀着火山玻璃珠和被称之为火山毛(Pele ' s hair)的熔岩细线。
The ledge was covered with heavy ash, called tephra, and speckled with droplets of volcanic glass and delicate lava threads known as Pele's hair.
火山岩包括黑曜岩火山玻璃。
水下喷发火山岩典型标志为珍珠岩、玻璃质结构、枕状构造、纹层状凝灰岩和膨润土。
Typical features of subaqueous volcanic rocks include perlite with glassy structure and pillow structure, lamellar tuff, bentonite.
黑曜岩火山玻璃，一般为黑色，带状，摔碎时色泽光亮，表面。
A usually black or banded, hard volcanic glass that displays shiny, curved surfaces when fractured and is formed by rapid cooling of lava.
此火山的主体是玄武岩，但是山坡却点缀著由石英安山岩（一种玻璃质、富含矽的熔岩）形成的熔岩锥和熔岩流。
The bulk of the volcano is basaltic , but the slopes are dotted with cones and lava flows consisting of glassy , silica - rich lavas called dacites.
此火山的主体是玄武岩，但是山坡却点缀著由石英安山岩(一种玻璃质、富含矽的熔岩)形成的熔岩锥和熔岩流。
The bulk of the volcano is basaltic, but the slopes are dotted with cones and lava flows consisting of glassy, silica - rich lavas called dacites.
湖北省某地有丰富的珍珠岩资源，其中黄绿色珍珠岩含火山玻璃高达80%左右。
There are abundant perlite resources in Hubei province, among them, yellow-green perlite takes up 80%.
湖北省某地有丰富的珍珠岩资源，其中黄绿色珍珠岩含火山玻璃高达80%左右。
There are abundant perlite resources in Hubei province, among them, yellow-green perlite takes up 80%.
应用推荐