玻璃质结构(vitreous texture)即全部由玻璃物质所组成的岩石结构。这种结构常见于火山岩中,比如按结晶程度划分的黑曜岩。全部由未结晶的火山玻璃质组成的岩石的结构。其同义词为玻质结构,此结构也常用于基质。组分没有结晶,为纯碎玻璃质的结构。
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.
根据这些玻璃质微球粒的物理、表面结构构造及常量元素等特征,可认为是微玻璃陨石。
These spherulites are identified as glassy microtektites by their surficial texture, physical and optical properties, and common element contents.
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