Results 101 to 110 of about 497,770 (261)

A Giant Impact Origin for the First Subduction on Earth

Geophysical Research Letters
Hadean zircons provide a potential record of Earth's earliest subduction 4.3 billion years ago. It remains enigmatic how subduction could be initiated so soon after the presumably Moon‐forming giant impact (MGI).
Qian Yuan, Michael Gurnis, Paul D. Asimow, Yida Li   +3 more
doaj   +1 more source

A new subduction initiation mechanism induced by lateral subduction propagation

Earth and Planetary Science Letters
Lateral subduction propagation is common in natural subduction zones, but its impact on side plates remains enigmatic. This study utilises scaled analogue models to investigate the behaviour of an ocean-ocean plate boundary subduction system, focusing on the effects of asymmetric lateral subduction propagation along a weak zone.
Chunyang Wang, Weiwei Ding, Wouter P․ Schellart, Zhengyi Tong, Yinxia Fang, Jiabiao Li   +5 more
openaire   +1 more source

An analytical study of initial subduction of the plate based on a bibliometric analysis method spanning 1995–2024

Frontiers in Earth Science
Subduction zones constitute a fundamental element of plate tectonic theory, with the initial subduction phase representing a critical but poorly constrained transitional stage in the development of mature subduction systems. Using CiteSpace and VOSviewer
Yongqiang Zhang, Nan Jiang, Kexin Liu
doaj   +1 more source

The subduction initiation stage of the Wilson cycle [PDF]

Geological Society, London, Special Publications, 2018
Abstract In the Wilson cycle, there is a change from an opening to a closing ocean when subduction begins. Subduction initiation is commonly identified as a major problem in plate tectonics and is said to be nowhere observable, yet there are many young subduction zones at the west Pacific margins and in eastern Indonesia.
openaire   +1 more source

Origin of Philippine Sea Basins During Subduction Initiation in the Western Pacific

Geochemistry, Geophysics, Geosystems
Understanding the age and dynamics of the overriding plates allows an assessment of competing subduction initiation hypotheses. The Izu‐Bonin‐Mariana margin in the Western Pacific is a key example of initiation and hence it is important to constrain the ...
Osamu Ishizuka, Kenichiro Tani, Rex N. Taylor, Susumu Umino, Izumi Sakamoto, Yuka Yokoyama, Itaru Ogitsu, Gen Shimoda, Yumiko Harigane, Taichi Sato, Yasuhiko Ohara, Christopher Conway, Americus Perez, Masakazu Fujii, Yuki Kusano, Masatoshi Yagi, Yoshihiko Tamura   +16 more
doaj   +1 more source

Subduction zone magmatism

, 1995
The physical and chemical processes that occur during the subduction of two converging tectonic plates have significant consequences, contributing to both the growth of the continental crust and the chemical and thermal evolution of the Earth's interior.
Eggins, S., Tatsumi, Y.
core  

Subduction initiation and ophiolite crust: new insights from IODP drilling

, 2017
International Ocean Discovery Program (IODP) Expedition 352 recovered a high-fidelity record of volcanism related to subduction initiation in the Bonin fore-arc. Two sites (U1440 and U1441) located in deep water nearer to the trench recovered basalts and
Tetsuya Sakuyama (3641773), Marguerite Godard (3641767), Wendy R. Nelson (3641764), Mark K. Reagan (3641800), Alastair H.F. Robertson (3641818), Julian A. Pearce (3641788), Hongyan Li (25306), Marie Python (3641797), Katerina Petronotis (3641785), Daniel E. Heaton (3641824), William W. Sager (3641806), Kenji Shimizu (138439), Gail L. Christeson (3641779), Maria Kirchenbaur (3641803), Sally Morgan (3641776), John W. Shervais (3641809), Julie Prytulak (3641821), Aaron J. Avery (3641815), Jeffrey G. Ryan (3641770), Katsuyoshi Michibayashi (3641782), Scott A. Whattam (836223), Renat R. Almeev (3641827), Timothy Chapman (3641830), Walter Kurz (3641812), Steffen Kutterolf (825370), Eric C. Ferré (3641791), Yibing Li (587133), Claire Carvallo (3641794)   +27 more
core   +1 more source

Building a Continental‐Scale Geodetic Network: The Plate Boundary Observatory (PBO)

Perspectives of Earth and Space Scientists, Volume 7, Issue 1, December 2026.
Abstract The Plate Boundary Observatory (PBO) transformed the use of geodesy in North America to study crustal deformation and plate boundary processes by establishing a continental‐scale, standardized, open‐access geodetic network. Built and operated by UNAVCO between 2003 and 2018 as part of the National Science Foundation (NSF)‐funded EarthScope ...
Emily E. Zawacki, Michael E. Jackson, Glen S. Mattioli, David J. Mencin, Karl Feaux, Donna J. Charlevoix   +5 more
wiley   +1 more source

Lateral propagation-induced subduction initiation at passive continental margins controlled by preexisting lithospheric weakness. [PDF]

Sci Adv, 2020
Zhou X, Li ZH, Gerya TV, Stern RJ.
europepmc   +1 more source

Influence of Site Amplification Approaches in PSRA: Insights From Five Different Cities

Earthquake Spectra, Volume 42, Issue 4, November 2026.
Regional and national seismic hazard models used in probabilistic seismic risk analysis often rely on generalized proxy‐based site terms to account for ground shaking amplification. This can result in coarse representations of site response, which can introduce bias or additional uncertainty in the associated risk results.
Julián Montejo, Vitor Silva, Bruno Pace, Marco Pagani   +3 more
wiley   +1 more source