How did Cenozoic subduction initiate in the West Pacific?
文献类型：期刊论文
| 作者 | Ding, Weiwei2,3; Sun, Weidong1,4 |
| 刊名 | SCIENCE CHINA-EARTH SCIENCES
 |
| 出版日期 | 2025-11-07 |
| 页码 | 12 |
| 关键词 | Subduction initiation Spontaneous subduction Induced subduction West Pacific External stress Lithospheric weak zones |
| ISSN号 | 1674-7313 |
| DOI | 10.1007/s11430-025-1715-9 |
| 通讯作者 | Ding, Weiwei(wwding@sio.org.cn) ; Sun, Weidong(weidongsun@qdio.ac.cn) |
| 英文摘要 | The subduction initiation remains one of the core controversies in plate tectonic theory, fundamentally reflecting interactions between endogenic gravitational driving forces within plates and external tectonic stresses. Through systematic study of marginal seas in the West Pacific Ocean with distinct subduction initiation patterns since the Cenozoic era-including the North Sulawesi subduction zone representing a transition from passive to active continental margins, the abortive Mussau Trench featuring young oceanic plate subduction beneath older ones, the Solomon Subduction Zone demonstrating a subduction polarity reversal (young oceanic plate overriding older one), and the IBM (Izu-Bonin-Mariana) Subduction Zone exhibiting a subduction of old oceanic plate beneath younger ones-this research reveals that, under the dynamic regime dominated by megaplates and subordinate to microplates in the West Pacific, young oceanic plate subduction beneath older ones (e.g., Solomon and Caroline Seas) depends on external compressive stresses combined with pre-existing weak zones such as transform faults. Rheological contrast zones between island arcs and young oceanic basins serve as preferential sites for incipient subduction, where conjugate shear zones constitute fundamental structural architectures. A transition from passive to active continental margins (e.g., Sulawesi Sea) is primarily controlled by regional compression. Even in cases of old oceanic plate subduction beneath younger ones (e.g., IBM system), initial stages exhibit transgression rather than spontaneous mechanisms, requiring sustained external forcing for continued subduction. Within the current framework of plate tectonics, purely spontaneous subduction driven solely by density contrasts between oceanic lithospheres appears geodynamically impossible. Lateral compression often plays key roles in breaking lithospheric equilibrium, serving as critical triggers for subduction initiation through focused strain localization along pre-existing weaknesses. |
| WOS关键词 | PLUME-INDUCED SUBDUCTION ; IZU-BONIN-MARIANA ; ONTONG JAVA PLATEAU ; TECTONICS ; ARC ; INSIGHTS ; EXAMPLE ; MANTLE ; LITHOSPHERE ; EVOLUTION |
| 资助项目 | National Natural Science Foundation of China[92258303] ; National Natural Science Foundation of China[42025601] |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:001611617400001 |
| 出版者 | SCIENCE PRESS |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/203758]  |
| 专题 | 海洋研究所_海洋地质与环境重点实验室 |
| 通讯作者 | Ding, Weiwei; Sun, Weidong |
| 作者单位 | 1.Chinese Acad Sci, Ctr Deep Sea Res, Qingdao 266071, Peoples R China 2.Second Inst Oceanog, State Key Lab Submarine Geosci, Hangzhou 310012, Peoples R China 3.Shanghai Jiao Tong Univ, Sch Oceanog, Shanghai 200030, Peoples R China 4.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Geol & Environm, Key Lab Ocean Observat & Forecasting, Qingdao 266071, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ding, Weiwei,Sun, Weidong. How did Cenozoic subduction initiate in the West Pacific?[J]. SCIENCE CHINA-EARTH SCIENCES,2025:12. |
| APA | Ding, Weiwei,&Sun, Weidong.(2025).How did Cenozoic subduction initiate in the West Pacific?.SCIENCE CHINA-EARTH SCIENCES,12. |
| MLA | Ding, Weiwei,et al."How did Cenozoic subduction initiate in the West Pacific?".SCIENCE CHINA-EARTH SCIENCES (2025):12. |
入库方式： OAI收割
来源：海洋研究所
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