noun
liparite; rhyolite
A fine-grained volcanic rock, equivalent to rhyolite. Used in geology; the cross-reference 流紋岩 (りゅうもんがん) is the more common term for rhyolite in modern Japanese.
See also: 流紋岩
この地域の地質は石英粗面岩で構成されている。
The geology of this area is composed of liparite.
流紋岩 is the standard modern term for rhyolite; 石英粗面岩 is an older or less common synonym.
Compound of 石英 (quartz) + 粗面岩 (trachyte), referring to a quartz-bearing trachyte-like rock. The exact historical derivation is uncertain; the term is a technical geological name.