Results 21 to 30 of about 359 (175)
Reappraisal of the Arc-Arc Collision in Taiwan
Terrestrial, Atmospheric and Oceanic Sciences, 2009 Al though it is evident that Taiwan has been formed by the collision of the west-facing Luzon arc with the Eurasian continental mar gin, there're main a lot of enigmas in this collision. The major ones are: (1) a trans form fault presently connecting the
Tetsuzo Seno Yoshiaki Kawanishi
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Earth, Planets and Space, 2019 The Okinawa Trough, to the southwest of Kyusyu, Japan, is an active backarc basin of the Ryukyu (Nansei-Shoto) island arc–trench system caused by the Philippine Sea plate subduction. Unlike other backarc basins around Japan, the Okinawa Trough, ~ 1000 km
Azusa Nishizawa +5 more
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K-Ar dating of the volcanic rocks in the Ryukyu arc.
JOURNAL OF MINERALOGY, PETROLOGY AND ECONOMIC GEOLOGY, 1991 High magnesian andesites from Kume-jima and Iriomote-jima, the Ryukyu islands were dated by the K-Ar method with the basalts from Kobi-sho and Sekibi-sho, the Senkaku islands. The obtained K-Ar ages of the high magnesian andesites are 6.08 ± 0.46 Ma and 13.1 ± 1.1 Ma for the sample (s) from Kume-jima and Iriomote-jima, respectively.
Shinjo, Ryuichi +3 more
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Activated seismicity by strain rate change in the Yaeyama region, south Ryukyu
Earth, Planets and Space, 2018 We evaluated the long-term strain rate by using continuous global navigation satellite system data of GEONET and compared it with seismicity activation between 1996 and 2017 near Iriomote Island, south Ryukyu arc.
Mamoru Nakamura, Ayumi Kinjo
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Tectonics of the Ryukyu Island Arc
Journal of Physics of the Earth, 1978 The geological and structural contrast between the north and central Ryukyus and the south Ryukyus has been significant since the Late Mesozoic. The difference seems to correspond to that of the nature of the Philippine Sea floor facing the Ryukyus, i.e. the Daito Ridges and Amami plateau to the north and deeper basin to the south.
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Progress in Earth and Planetary Science, 2020 Sub-bottom profiling (SBP) surveys and bathymetric mapping conducted off the shore of Miyako-jima, which belongs to the southern Ryukyus in the Ryukyu Island Arc, have revealed the presence of mound-shaped structures 3–8 m high and 50–120 m wide at ...
Takahiko Inoue, Kohsaku Arai
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Geochemistry, Geophysics, Geosystems, 2023 Accreted basaltic rocks are expected to provide information on intraplate volcanism in the oceans. Basaltic rocks, originating from mid‐ocean ridges, plateaus, and seamounts, have been reported from exhumed accretionary complexes. However, basaltic rocks
Ginta Motohashi +3 more
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Geochemistry, Geophysics, Geosystems, Volume 27, Issue 6, June 2026.Abstract Volcanism in continental rifts, rifted volcanic arcs, and back‐arc basins is fundamentally coupled with crustal extension. However, the precise geometry and timing of the fault systems that facilitate magma transport and accommodate extension remain poorly constrained.
Jonas Preine +17 more
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Formation Age of the Ryukyu Arc-Okinawa Trough System.
Journal of Geography (Chigaku Zasshi), 1991 The Ryukyu Arc-Okinawa Trough system is one of several arc-backarc systems alongthe margin of the western Pacific and east Asia. Recent results of seismic refractionand reflection studies have revealed that the origin of the trough is the continental rifting, and the trough is in a state of the active rifting stage (e. g.
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Volcanic Characteristics of Kueishantao in Northeast Taiwan and Their Implications
Terrestrial, Atmospheric and Oceanic Sciences, 2010 Kueishantao (KST) is a small offshore volcanic island located at the southernmost part of the Okinawa Trough. In this study, we conducted a detailed mapping incorporating the new high resolution LiDAR DTM laser scanning device to accurately construct a ...
Ching-Lung Chiu +3 more
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