The synchronic Cenozoic subduction initiations in the west Pacific induced by the closure of the Neo-Tethys Ocean

• 来源期刊: 科学通报（英文版）
• 年，卷（期）: 2020,（24）
• 所属期刊栏目: SHORT COMMUNICATIONS
• 页码范围: 2068-2071
• 页数: 4页
• 语种: 英文

摘要

Subduction initiation is fundamental for the plate tectonics the-ory,which has drawn wide attentions[1-5].Ocean-continent tran-sition[1],emergence of plume head[5],age contrast,e.g.,due to displacement of spreading ridges along transform fault[6],etc,have all been proposed as the main trigger of subduction initiation.Previous studies suggested two types of subduction initiations,namely spontaneous and induced[4].Induced subduction initia-tion was resulted from pre-existing plate convergence,whereas spontaneous subduction initiation was triggered by large lateral density contrasts occurring across profound lithospheric weak-nesses[4],or by emerging of mantle plume head within the plate[51.