Imaging the crustal interfaces along the Ryukyu arc‐trough system using precursors to teleseismic sP and pP

2020 ◽  
Author(s):  
Xinghua Jia ◽  
Daoyuan Sun
Keyword(s):  
Ryukyu Arc

Tracing subducted sediment inputs to the Ryukyu arc-Okinawa Trough system: Evidence from thallium isotopes

2017 ◽  
Vol 217 ◽  
pp. 462-491 ◽  
Author(s):  
Yunchao Shu ◽  
Sune G. Nielsen ◽  
Zhigang Zeng ◽  
Ryuichi Shinjo ◽  
Jerzy Blusztajn ◽  
...  
Keyword(s):  
Okinawa Trough ◽  
Ryukyu Arc ◽  
Subducted Sediment

scholarly journals Topographic Anaglyphs from Detailed Digital Elevation Models Covering Inland and Seafloor for the Tectonic Geomorphology Studies in and around Yoron Island, Ryukyu Arc, Japan

Geosciences ◽  
2018 ◽  
Vol 8 (10) ◽  
pp. 363 ◽  
Author(s):  
Hideaki Goto ◽  
Kohsaku Arai ◽  
Taichi Sato
Keyword(s):  
Late Quaternary ◽  
Active Faults ◽  
Aerial Photographs ◽  
Stress Axis ◽  
Tectonic Geomorphology ◽  
Surface Model ◽  
The North ◽  
Digital Elevation ◽  
Ryukyu Arc ◽  
Island Shelf

Anaglyphs produced using a digital elevation model (DEM) are effective to identify the characteristic tectono–geomorphic features. The objective of this study is to reinvestigate the tectonic geomorphology and to present novel tectonic maps of the late Quaternary in and around the Yoron island based on the interpretation of extensive topographical anaglyphs along the map areas that cover the inland and seafloor. Vintage aerial photographs are used to produce the 3-m mesh inland digital surface model (DSM); further, the 0.6-s to 2-s-mesh seafloor DEM is processed using the cloud point data generated through previous surveys. Thus, we identify anticlinal deformation on both the Pleistocene marine terrace and the seafloor to the north of the island. The deformation axis extends in a line and is parallel to the general trend of the island shelf. The Tsujimiya fault cuts the marine terraces, which extend to the Yoron basin’s seafloor. If we assume that the horizontal compressive stress axis is perpendicular to the island shelf, these properties can easily explain the distribution and style of the active faults and deformation. This study presents an effective methodology to understand the island arc tectonics, especially in case of small isolated islands.

Detailed volcanic morphology of Daisan-Miyako Knoll in the southern Ryukyu Arc

2018 ◽  
Vol 404 ◽  
pp. 97-110 ◽  
Author(s):  
Hiroki Minami ◽  
Yasuhiko Ohara
Keyword(s):  
Ryukyu Arc

Detailed morphology and bubble plumes of Daiichi-Amami Knoll in the central Ryukyu Arc

2016 ◽  
Vol 373 ◽  
pp. 55-63 ◽  
Author(s):  
Hiroki Minami ◽  
Yasuhiko Ohara
Keyword(s):  
Bubble Plumes ◽  
Ryukyu Arc
Sign in / Sign up

Export Citation Format

Share Document