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The volcanic Solomon Islands in the southwest Pacific Ocean are part of an intra-oceanic island arc system extending south to Vanuatu, southwest of the present-day North Fiji basin and northeast of the New Hebrides basin.

The arc lies along the northeastern side of the collision boundary of the Pacific tectonic plate and the Indo-Australian plate with the former subducting beneath the latter during the Cretaceous to the present day. The islands have a mix of origins. Volcanoes above hotspots in the mantle include the islands of Malaita, Ulawa, and northern Santa Isabel. The surface expression of a mid oceanic ridge include the islands of Choiseul and Guadalcanal.

Two stages of arc growth occurred from the Eocene to Early Miocene and from the Late Miocene to the present day. The current oblique collision between the Pacific and Australian plates has resulted in the formation of complex intra- and back-arc basins.

Globalshift considers the Solomon Islands and their surrounding waters, being comprised of young volcanic rocks and fringing reefs onshore and oceanic crust offshore, to have no oil and gas potential.

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Solomon Islands