volcanic glass

volcanic glass, oxyhornblende, montmorillonite and so on can be used to indicate volcanic activity and hydrothermal activity.

用火山玻璃、玄武闪石、蒙脱石等示踪火山和热液活动。

the relation between the refraction and rock-chemical components for natural acidic volcanic glass

天然酸性火山玻璃的折射率与岩石化学成分的关系

smectite mainly came from the alteration of volcanic ash or volcanic glass and the weathering materials derived from land rocks.

蒙脱石除源于大陆派生的岩石风化物外，主要来自火山物质的蚀变。

The composition of volcanic glass gradually decreases Fe _ T , Mg and Ca with the increasing crystallinity.

玻璃相的成分随结晶程度的增加有贫铁 、 镁、钙的趋势.

and if i did find the right one, i might never know it because i might overlook that black piece of volcanic glass, or, much more likely, andy put it into his pocket and took it with him.

即使我真的找到了，也不见得认得出来，因为我可能没有看到那块黑色的火山岩玻璃，或更可能的情况是，安迪把那块玻璃放进口袋里带走了。

volcanic glass discovered in loess in shandong peninsula

山东半岛黄土堆积中的火山玻璃

Whatever, the additive electro conductibility generated by clay mineralization of volcanic glass can also make the rock resistivity reduce.

火山玻璃粘土矿化产生附加导电性也可以使岩石电阻率降低。

fine-grained clastics mixed with pyroclastics in which volcanic glass was altered into zeolites and/ or smectite and the borate-containing deposits ( jarandol basin) occur too.

细粒碎屑与火山碎屑混杂，其中的火山玻璃蚀变为沸石和（或）蒙脱石，也出现有含硼酸盐的沉积物（Jarandol盆地）。

Micro features of the volcanic glass and feldspar from the Tianchi volcano in the Changbaishan Mountains

长白山天池火山玻璃和长石微观特征研究

the raman spectrum study on volcanic glass

火山玻璃的拉曼光谱研究

Discovery and environmental significance of volcanic glass in eolian dust layers in the East China Sea Islands

东海岛屿风尘地层中火山玻璃的发现及环境意义

distribution, chemical characteristics and source area of volcanic glass in the south china sea

南海火山玻璃的分布特征、化学成分及源区探讨

Volcanic rock includes the volcanic glass obsidian.

火山岩包括黑曜岩火山玻璃。

the devitrification of acid volcanic glass

酸性火山玻璃的脱玻化作用

But recent studies have found that samples of volcanic glass, brought back from the moon on the Apollo missions, contain as much water as magma found here on Earth.

但是近期的研究发现，阿波罗计划从月球上带回来的火山玻璃含有与地球岩浆一样多的水分。

Piece of black, volcanic glass.

一块黑色的火山玻璃.