Volcanic island

Geologically, a volcanic island is an island of volcanic origin. The term high island can be used to distinguish such islands from low islands, which are formed from sedimentation or the uplifting of coral reefs (which have often formed on sunken volcanos).^[1]

^ Murphy, Raymond E. (July 1949). ""High" and "Low" Islands in the Eastern Carolines". Geographical Review. 39 (3). American Geographical Society: 425–439. Bibcode:1949GeoRv..39..425M. doi:10.2307/210643. JSTOR 210643.

[1] Murphy, Raymond E. (July 1949). ""High" and "Low" Islands in the Eastern Carolines". Geographical Review. 39 (3). American Geographical Society: 425–439. Bibcode:1949GeoRv..39..425M. doi:10.2307/210643. JSTOR 210643.

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