Zobrazeno 1 - 10
of 51
pro vyhledávání: '"Kozo Uto"'
Autor:
Kozo Uto, Setsuya Nakada
Publikováno v:
Scientific Drilling, Iss 1, Pp 18-22 (2005)
Abstract Directional drilling at Unzen Volcano in Japan duringmid of 2004 penetrated the magma conduit and successfullyrecovered samples of the lava dike that is believed to havefed the 1991–1995 eruption. The dike was sampled about1.3 km below the
Externí odkaz:
https://doaj.org/article/e27b544a50c04b1f81a20167939bc541
Publikováno v:
Journal of Geodynamics. 68:1-17
We present geochemical, Sr, Nd and Pb isotopic data for the youngest back-arc tholeiitic and alkali basalts in the southern tip of Goto Islands along the Taiwan–Shinji Folded Belt in northwestern Kyushu, SW Japan. The data are compared with those m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0305b208cd5e70d01b003520703e5d3a
https://doi.org/10.1016/j.jog.2013.03.002
https://doi.org/10.1016/j.jog.2013.03.002
Publikováno v:
Journal of Volcanology and Geothermal Research. 175:1-12
Borehole USDP-4 was drilled into the Unzen volcanic conduit 9 years after its last eruption. The sub-surface mechanism of eruption at Unzen Volcano was investigated by taking cores and by geophysical logging. The drilling operations were carried out
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::48c95230a53625dcbe90ccdc35125e8a
https://doi.org/10.1016/j.jvolgeores.2008.03.039
https://doi.org/10.1016/j.jvolgeores.2008.03.039
Autor:
Masaru Kurokawa, Setsuya Nakada, Hideo Hoshizumi, Kozo Uto, Yoshihiko Goto, Taketo Shimano, Takeshi Sugimoto, Sumio Sakuma, Mitsuhiro Yoshimoto
Publikováno v:
Journal of Volcanology and Geothermal Research. 175:45-59
Unzen, western Kyushu, Japan, is an andesitic to dacitic, polygenetic volcano that reaches an elevation of 1486 m above sea level. A 1996-m-long hole has been drilled on a slanted trajectory passing beneath the volcano, penetrating the conduit zone o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::51df3633201d587686a542eafa0b0e4f
https://doi.org/10.1016/j.jvolgeores.2008.03.041
https://doi.org/10.1016/j.jvolgeores.2008.03.041
Publikováno v:
Journal of Asian Earth Sciences. 30:20-32
Stratigraphic review of the on-land successions exposed on the back-arc side of Japan and Sakhalin, combined with supplemental radiometric dating, reveals the existence of Late Eocene or Oligocene marine sediments along the eastern coast of the Japan
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2a8bb005ffc542a50792b77e8fd5ceab
https://doi.org/10.1016/j.jseaes.2006.07.003
https://doi.org/10.1016/j.jseaes.2006.07.003
Publikováno v:
The Journal of the Geological Society of Japan. 113:193-211
八ヶ岳地域の火山活動時期を層序学的・年代学的・古地磁気学的手法を用いて再検討した．その結果，八ヶ岳地域の火山活動は，北八ヶ岳地域では約1.2～0.8 Maと約0.5 Ma以降，南八ヶ岳地
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cb4a9d3cd36770fd5713f2c06afd6083
https://doi.org/10.5575/geosoc.113.193
https://doi.org/10.5575/geosoc.113.193
Autor:
Kozo Uto, Nguyen Hoang
Publikováno v:
Earth and Planetary Science Letters. 249:229-240
New Sr, Nd, and Pb isotopic data for Cenozoic basalts from northwest Kyushu, Japan and the Okinawa Trough, suggest that mantle sources feeding the Ryukyu ‘back-arc’ side volcanoes, represent a mixture of Pacific N-MORB mantle with EM2-rich compon
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::86df113198cc973966406f858bd165ae
https://doi.org/10.1016/j.epsl.2006.07.021
https://doi.org/10.1016/j.epsl.2006.07.021
Autor:
Brandon L. Browne, Lina C. Patino, Kozo Uto, John C. Eichelberger, Thomas A. Vogel, Hideo Hoshizumi
Publikováno v:
Journal of Volcanology and Geothermal Research. 154:103-116
Textural and geochemical characteristics of plagioclase phenocrysts from the eruptive products of Mount Unzen (SW Japan) record repeated intrusions of basaltic magma into a dacitic host magma chamber over the lifetime of the volcano. An important asp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::85afb90c7b026a9e64731886e3b543aa
https://doi.org/10.1016/j.jvolgeores.2005.09.022
https://doi.org/10.1016/j.jvolgeores.2005.09.022
Autor:
Thomas A. Vogel, Lina C. Patino, John C. Eichelberger, Brandon L. Browne, Kozo Uto, Jonathan Dehn, Hideo Hoshizumi
Publikováno v:
Journal of Petrology. 47:301-328
Mafic to intermediate enclaves are evenly distributed throughout the dacitic 1991–1995 lava sequence of Unzen volcano, Japan, representing hundreds of mafic recharge events over the life of the volcano. This study documents the morphological, textu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f580b539d50e81677815ac1399b8b537
https://doi.org/10.1093/petrology/egi076
https://doi.org/10.1093/petrology/egi076
Publikováno v:
Journal of Petrology. 46:505-522
We report Sr-, Nd- and Pb-isotopic compositions for the lavas of Mauritius, the second youngest volcanic island in the Reunion hotspot. The lavas of the Older Series (7·8–5·5 Ma) have identical isotopic compositions (87Sr/86Sr = 0·70411 to 0·70
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::adf267e7baf752d78764ea37b40ca4c6
https://doi.org/10.1093/petrology/egh085
https://doi.org/10.1093/petrology/egh085