资源环境科技发展态势分析平台

The Itina Trough is a late Miocene rift graben formed at the beginning of Woodlark Basin opening where the northern Louisiade Plateau micro‐continent had collided with the eastern Pocklington Rise remnant arc. We infer that it was the collisional suture of this Plateau subducted at the Pocklington Trough that either thickened the crust and weakened the lithosphere and/or adjoined the apparently thicker Louisiade micro‐continent to the thinner crust of the eastern Pocklington Rise, and thereby localized the rifting. Other examples of rifting across a remnant arc‐trench system in the SW Pacific include the South Rennell Trough and the Norfolk Basin.