Ultra-magnesian olivine-bearing ultramafic lava blocks within Cenozoic accretionary sediments at Shizuoka, Japan: Implications for young, hot plume activity beneath the western Pacific Plate

Lithos ◽  
2019 ◽  
Vol 324-325 ◽  
pp. 315-324
Author(s):  
Yoshihiro Nakamura ◽  
Hidemi Ishibashi ◽  
Atsushi Yasuda ◽  
Natsumi Hokanishi ◽  
Junji Yamamoto
Keyword(s):  
Pacific Plate ◽  
Western Pacific ◽  
Magnesian Olivine ◽  
The Western Pacific

scholarly journals Spatial and temporal evolution of the subducting Pacific plate structure along the western Pacific margin

2006 ◽  
Vol 111 (B2) ◽  
pp. n/a-n/a ◽  
Author(s):  
M. S. Miller ◽  
B. L. N. Kennett ◽  
V. G. Toy
Keyword(s):  
Temporal Evolution ◽  
Pacific Plate ◽  
Western Pacific ◽  
Plate Structure ◽  
Pacific Margin ◽  
The Western Pacific

P-wave tomography of Northeast Asia: Constraints on the western Pacific plate subduction and mantle dynamics

2018 ◽  
Vol 274 ◽  
pp. 105-126 ◽  
Author(s):  
Jincheng Ma ◽  
You Tian ◽  
Cai Liu ◽  
Dapeng Zhao ◽  
Xuan Feng ◽  
...  
Keyword(s):  
Northeast Asia ◽  
Pacific Plate ◽  
Western Pacific ◽  
P Wave ◽  
Mantle Dynamics ◽  
Wave Tomography ◽  
Pacific Plate Subduction ◽  
The Western Pacific ◽  
Plate Subduction

Subduction of the Western Pacific Plate underneath Northeast China: Implications of numerical studies

2010 ◽  
Vol 178 (1-2) ◽  
pp. 92-99 ◽  
Author(s):  
Guizhi Zhu ◽  
Yaolin Shi ◽  
Paul Tackley
Keyword(s):  
Northeast China ◽  
Pacific Plate ◽  
Western Pacific ◽  
Numerical Studies ◽  
The Western Pacific

The melt content of the low velocity layer in the eastern South China: Implications for the subduction process of the Western Pacific plate

2020 ◽  
Vol 298 ◽  
pp. 106321
Author(s):  
Maining Ma ◽  
Xiaoya Zhou ◽  
Zhishuang Xu ◽  
Guohui Li ◽  
Yongbing Li ◽  
...  
Keyword(s):  
South China ◽  
Pacific Plate ◽  
Western Pacific ◽  
Low Velocity ◽  
Low Velocity Layer ◽  
The Western Pacific ◽  
Velocity Layer

Pixels to plates: reconstructing Pacific-Izanagi plate tectonics from seismic tomography

2020 ◽  
Author(s):  
Jonny Wu ◽  
Yi-An Lin ◽  
Nicolas Flament ◽  
Tsung-Jui Wu ◽  
Yiduo Liu
Keyword(s):  
Late Cretaceous ◽  
Plate Tectonics ◽  
Pacific Plate ◽  
Western Pacific ◽  
Plate Motion ◽  
Northwest Pacific ◽  
Bohai Bay ◽  
Cross Sectional ◽  
Late Mesozoic ◽  
The Western Pacific

<p>Contrasted subduction histories have been proposed for the northeast Asian margin since mid-Cretaceous times due to extensive subduction, which has recycled the Izanagi-Pacific mid-ocean ridge, the entire Izanagi rift flank, and part of the western Pacific plate into the mantle.  Here we reconstruct northwest Pacific-Izanagi plate tectonics since Cretaceous times from imaged and predicted mantle structure.  We compare our tomography-led NW Pacific-Panthalassa plate reconstruction against a relatively independent, large (n>1000) magmatic and isotopic geochemical database from East Asia.  Our reconstruction reveals the ancient boundaries between the western Kula plate, the Izanagi plate, and the ‘Junction’ realm, which divided Pacific-Panthalassa from Tethys during Cretaceous times, providing a new NW Pacific-Panthalassa plate tectonic framework during late Mesozoic times.</p><p>We reconstructed the western Pacific plate by structurally-restoring (i.e. unfolding) imaged slabs from tomography using area conservation of cross-sectional slab areas, following Wu et al (2016).  The vanished Izanagi plate was then modeled as a conjugate rift flank.  Western Pacific slab areas were assessed from global tomography models MITP08, GAPP4, UUP07, and from the full-waveform regional tomography FWEA18 (Tao et al., 2018).  To mitigate image blurring, we introduced a new ‘tomographic smearing’ correction based on computing input and output slab volumes from synthetic slab resolution tests. </p><p>Our tomography-led plate model indicates: (1) that the stagnant Pacific slabs have subducted along Eurasia since ~50 ± 10 Ma; (2) that the Izanagi-Pacific ridge intersected Korea to Kamchatka at a low angle ~50 ± 10 Ma, consistent with an observed 56 to 46 Ma magmatic gap between Japan and Sikhote-Alin, Russia, and with geodynamic models that assimilate low-angle 50 Ma ridge-trench intersection;  and (3) that subduction of the Izanagi plate during the mid- to late Cretaceous was limited between Bohai Bay, China, and westernmost Alaska.  During the late Cretaceous, the SW margin of the Izanagi plate was bounded by an extensive NW-SE transform that we call the ‘Qingdao line’.  The newly-proposed Qingdao line explains the well-recognized, but poorly-understood contrasts in Cretaceous magmatism between southeast and northeast China.  Subduction initiated along the Qingdao line during the Pacific plate motion change at ~50 Ma, forming the Izu-Bonin-Marianas subduction system. </p>

A rapid cooling event over the western Pacific region during the Middle Bronze Age

2020 ◽  
Author(s):  
Hangfang Xiao ◽  
Wenfeng Deng ◽  
Xi Liu ◽  
Xuefei Chen ◽  
Yangrui Guo ◽  
...  
Keyword(s):  
Bronze Age ◽  
Western Pacific ◽  
Pacific Region ◽  
Western Pacific Region ◽  
Rapid Cooling ◽  
Middle Bronze Age ◽  
The Western Pacific

Typhoon Havens Handbook for the Western Pacific and Indian Oceans. Change 3

1993 ◽  
Author(s):  
Dennis C. Perryman ◽  
Richard E. Gilmore ◽  
Ronald E. Englebretson
Keyword(s):  
Western Pacific ◽  
The Western Pacific
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