noun
rock series; lithosequence
Geological term for a group of related rocks formed under similar conditions or from a common source.
この地域の岩石系列は、主に玄武岩からなる。
The rock series in this area consists mainly of basalt.
岩石系列の研究は、地質学の基礎である。
The study of rock series is fundamental to geology.
Compound of 岩石 (ganseki, 'rock') and 系列 (keiretsu, 'series, sequence').