noun
Geographical term for a curved chain of volcanic islands, typically formed at convergent plate boundaries. The gloss mentions the Aleutian Islands as a typical example.
花綵列島は、プレートの沈み込み帯に沿って形成される。
Island arcs are formed along subduction zones of tectonic plates.
Synonym for island arc; 弧状列島 is more common in modern Japanese geographical texts, while 花綵列島 is a less frequent variant.
From 花綵 (flower garland) + 列島 (archipelago), referring to the garland-like curved shape of such island chains.