Radiolarian Biostratigraphy from Middle Miocene to Late Pleistocene in the Japan Sea

2017 ◽  
Vol 21 (4) ◽  
pp. 397-421 ◽  
Author(s):  
Shin-Ichi Kamikuri ◽  
Takuya Itaki ◽  
Isao Motoyama ◽  
Kenji M. Matsuzaki
Keyword(s):  
Late Pleistocene ◽  
Middle Miocene ◽  
Japan Sea ◽  
The Japan Sea ◽  
Radiolarian Biostratigraphy

U–Pb ages of Miocene near-trench granitic rocks of the Southwest Japan arc: implications for magmatism related to hot subduction

2019 ◽  
Vol 158 (1) ◽  
pp. 47-71 ◽  
Author(s):  
Hironao Shinjoe ◽  
Yuji Orihashi ◽  
Ryo Anma
Keyword(s):  
Middle Miocene ◽  
Japan Sea ◽  
Wide Distribution ◽  
Granitic Rocks ◽  
Philippine Sea Plate ◽  
Kii Peninsula ◽  
The Japan Sea ◽  
Igneous Activity ◽  
Mariana Arc ◽  
Back Arc

AbstractWe present a new dataset of zircon U–Pb ages that document igneous activity in the SW Japan arc during middle Miocene time and discuss its relationship with the opening of the Japan Sea, Philippine Sea plate migration, and subduction of the young hot lithosphere of the Shikoku Basin. Precursory magmatism, characterized by dike and stock intrusions, started c. 15.6 Ma in both Kyushu and the Kii Peninsula. Most plutonism occurred between 15.5 and 13.5 Ma in an area 600 km long and 150 km wide. No along-arc trend was recognized in the U–Pb ages of igneous activity near the trench. Our data indicate that all near-trench middle Miocene igneous activity occurred immediately after the opening of the Japan Sea ceased, i.e. after 16 Ma, implying that melt extraction and the emplacement of granites in the near-trench region had some influence on the back-arc opening. Our data also imply that the trench–trench–trench-type triple junction between the Japan arc and the Izu–Bonin–Mariana arc must have reached the east side of the Kii Peninsula by 15.6 Ma. The wide distribution of contemporaneous magmatic activity along the arc requires a trench-parallel heat source, such as the subduction of a trench-parallel ridge or a young and highly segmented ridge–fracture zone system in addition to the hot wedge mantle condition related to the opening of Japan Sea.

A salinity-related occurrence of a novel alkenone and alkenoate in Late Pleistocene sediments from the Japan Sea

2006 ◽  
Vol 37 (9) ◽  
pp. 1074-1084 ◽  
Author(s):  
Kazuho Fujine ◽  
Masanobu Yamamoto ◽  
Ryuji Tada ◽  
Yoshiki Kido
Keyword(s):  
Late Pleistocene ◽  
Japan Sea ◽  
The Japan Sea

scholarly journals Carbon isotopic compositions of fatty acids from the Japan Sea and their inferred terrestrial palaeoenvironment in Late Pleistocene

2011 ◽  
Vol 45 (4) ◽  
pp. 263-274
Author(s):  
KOHEI MATSUMOTO ◽  
SHINJI TSUKAWAKI ◽  
RYOSHI ISHIWATARI ◽  
HIROSHI KITAZATO
Keyword(s):  
Fatty Acids ◽  
Late Pleistocene ◽  
Japan Sea ◽  
Isotopic Compositions ◽  
Carbon Isotopic ◽  
The Japan Sea

Eukaryotic diversity in late Pleistocene marine sediments around a shallow methane hydrate deposit in the Japan Sea

Geobiology ◽  
2017 ◽  
Vol 15 (5) ◽  
pp. 715-727 ◽  
Author(s):  
M. Kouduka ◽  
A. S. Tanabe ◽  
S. Yamamoto ◽  
K. Yanagawa ◽  
Y. Nakamura ◽  
...  
Keyword(s):  
Late Pleistocene ◽  
Marine Sediments ◽  
Methane Hydrate ◽  
Japan Sea ◽  
Eukaryotic Diversity ◽  
The Japan Sea ◽  
Hydrate Deposit
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