Dictionary
Words, grammatical forms and meanings linked to the ontology.
island arc en · NOUN
Meanings
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A long chain of active volcanoes with intense seismic activity found along convergent tectonic plate boundaries.
Offshore to the west of the continental margin during the Early Triassic, the Sonoma highlands formed a volcanic island arc, separated from the mainland by a shallow sea that cut through western Nevada and northwestern Utah.
2012, Chinle Miller, “The Tectonic Forces of the Mesozoic”, in In Mesozoic Lands: The Mesozoic Geology of Arches and Canyonlands National Parks, Kindle edition, page 34:
Forms