Results 21 to 30 of about 3,027 (216)
Earth, Planets and Space, 2018 Tectonic and volcanic structures of the northern Ryukyu arc are investigated on the basis of multichannel seismic (MCS) reflection data. The study area forms an active volcanic front in parallel to the non-volcanic island chain in the eastern margin of ...
Ryuta Arai +4 more
doaj +1 more source
Distribution of dissolved methane in seawater from the East China Sea to the Ryukyu forearc
Frontiers in Earth Science, 2023 Methane is a greenhouse gas, and the East China Sea acts as a source of emissions to the atmosphere. On the other hand, the distribution of methane concentration in the Ryukyu Arc shelf and forearc region has not been clarified.
Tomohiro Toki +4 more
doaj +1 more source
Regional-scale input of dispersed and discrete volcanic ash to the Izu-Bonin and Mariana subduction zones [PDF]
, 2014 We have geochemically and statistically characterized bulk marine sediment and ash layers at Ocean Drilling Program Site 1149 (Izu-Bonin Arc) and Deep Sea Drilling Project Site 52 (Mariana Arc), and have quantified that multiple dispersed ash sources ...
Cambray +38 more
core +1 more source
Double seismic zones and stresses of intermediate depth earthquakes [PDF]
, 1981 Data from Japanese local seismograph networks suggest that the stresses in double seismic zones are in-plate compression for the upper zone and in-plate tension for the lower zone; the stresses do not necessarily appear to be down-dip.
Fujita, Kazuya, Kanamori, Hiroo
core +1 more source
Estimating the horizontal and vertical direction-of-arrival of water-borne seismic signals in the northern Philippine Sea [PDF]
, 2013 Author Posting. © Acoustical Society of America, 2013. This article is posted here by permission of Acoustical Society of America for personal use, not for redistribution.
Baggeroer, Arthur B. +9 more
core +1 more source
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
doaj +1 more source
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
doaj +1 more source
Palaeoproterozoic arc magnatism and collision in Liaodong Peninsula (north-east China). [PDF]
, 2004 In the north-eastern part of the North China Block, a afic magmatic belt consisting of mafic–ultramafic rocks and marine sedimentary rocks crops out between the northern Archean Anshan Block and a southern Palaeoproterozoic Block.
Bruguier, Olivier +3 more
core +3 more sources
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.
Ryuichi Shinjo +3 more
openaire +2 more sources