Results 1 to 10 of about 14,597 (165)

Magmatic Evolution of the Fossil Melanesian Island Arc: Evidence From Lower Miocene Lavas of Malekula Island (Vanuatu)

Geochemistry, Geophysics, Geosystems
The subduction zones in the SW Pacific Ocean are some of the most dynamic plate boundaries on Earth with changes in subduction polarity and subduction initiation processes. The New Hebrides island arc formed some 10 million years ago after the Melanesian
Osamu Ishizuka, Karsten Haase
exaly   +2 more sources

Titanium isotopes as a tracer for the plume or island arc affinity of felsic rocks [PDF]

Proceedings of the National Academy of Sciences of the United States of America, 2019
François Robert, Paul S Savage, Marc Chaussidon   +2 more
exaly   +2 more sources

Characteristics of volcanic-sedimentary formations and developmental patterns of source and reservoir rocks in an island arc environment of Shibei Sag, Junggar Basin: taking the Carboniferous Jiangbasitao Formation as an example

Shiyou shiyan dizhi, 2023
The Shibei Sag is located in the north of Luliang Uplift in the eastern Junggar Basin. There has been no breakthrough in the exploration of Carboniferous volcanic traps in the Shibei Sag in the past years.
Wei XIONG, Yue WANG, Zhengrong XIONG, Wenke MEI, Zhongcai BAI, Qianru CAI, Zhihua SONG   +6 more
doaj   +1 more source

GRANITOID MAGMATISM IN THE NORTH OF THE URALS: U–Pb AGE, EVOLUTION, SOURCES

Геодинамика и тектонофизика, 2021
This work presents the summarization of U–Pb (SIMS, TIMS) zircon dates and petrogeochemical signatures of granitoids of the north of the Urals (Polar, Subpolar, and Northern Urals) obtained over the last decade.
O. V. Udoratina, K. V. Kulikova, A. S. Shuyskiy, A. A. Sobolevа, V. L. Andreichev, I. I. Golubeva, V. A. Kapitanova   +6 more
doaj   +1 more source

Tectono-magmatic evolution of the Philippine Sea Plate: A review

Geosystems and Geoenvironment, 2022
The West Pacific Margin incorporates 75% of global marginal basins/back-arc basins. These basins and their adjacent trenches and island arcs constitute a huge trench-arc-basin system created by the interactions among three tectonic plates (the Pacific ...
Quanshu Yan, Xuefa Shi, Long Yuan, Shishuai Yan, Zhenxuan Liu   +4 more
doaj   +1 more source

Volcanism and intrusive magmatism of the Magnitogorsk paleoarc in the epoch of its “soft” collision with a margin of the East European continent

Литосфера, 2020
Research subject. The article sets out to investigate the change of the geodynamic regime from the island-arc type to the accretionary-collisional type in the Late Devonian–Early Carboniferous, which occurred as a result of 1) a collision between the ...
D. N. Salikhov, V. V. Kholodnov, V. N. Puchkov, I. R. Rakhimov   +3 more
doaj   +1 more source

Discovery of Ancient Volcanoes in the Okhotsk Sea (Russia): New Constraints on the Opening History of the Kurile Back Arc Basin

Geosciences, 2020
Here we present the first radiometric age and geochemical (major and trace element and isotope) data for samples from the Hydrographer Ridge, a back arc volcano of the Kurile Island Arc, and a newly discovered chain of volcanoes (“Sonne Volcanoes”) on ...
Reinhard Werner, Boris Baranov, Kaj Hoernle, Paul van den Bogaard, Folkmar Hauff, Igor Tararin   +5 more
doaj   +1 more source

Inhomogeneous structure of magnetic layer of the Kuril Island Arc

Геодинамика и тектонофизика, 2020
An innovative technology of anomalous magnetic field inversion was applied to construct 2D models of the magnetic layer using three profiles crossing the southern, central and northern parts of the Kuril Island Arc.
N. A. Palshin, A. N. Ivanenko, D. A. Alekseev   +2 more
doaj   +1 more source

Variations in seismic velocity distribution along the Ryukyu (Nansei-Shoto) Trench subduction zone at the northwestern end of the Philippine Sea plate

Earth, Planets and Space, 2017
The Ryukyu (Nansei-Shoto) island arc-trench system, southwest of Japan, is formed by the subduction of the Philippine Sea (PHS) plate. Among the subduction zones surrounding the Japan Islands, the Ryukyu arc-trench system is unique in that its backarc ...
Azusa Nishizawa, Kentaro Kaneda, Mitsuhiro Oikawa, Daishi Horiuchi, Yukari Fujioka, Chiaki Okada   +5 more
doaj   +1 more source

Crustal development in relation to granitic magmatism in regard to D/H partition between coexisting hornblende and biotite in the Svecofennian belt [PDF]

Bulletin of the Geological Society of Finland, 1993
Tie-lines in the σD-XFe diagram of hornblende and biotite in Japanese island arc granites give commonly a similar slope to that derived from the equation of Suzuoki-Epstein's experimental work (1976).
Y. Kuroda, T. Yamada, Y. Yamaguchi, H. Sato, Y. Wake, S. Matsuo   +5 more
doaj   +1 more source