Zobrazeno 1 - 10
of 92
pro vyhledávání: '"Shuhei Sakata"'
Autor:
Yuji Sano, Yuta Koyama, Naoto Takahata, Takuya Matsuzaki, Mizuho Koike, Makiko K. Haba, Shuhei Sakata, Hideharu Kuwahara, Tetsuo Irifune
Publikováno v:
Journal of Analytical Science and Technology, Vol 15, Iss 1, Pp 1-11 (2024)
Abstract New standard zircons applicable to in situ analysis of Hf/W ratio by Nanoscale secondary ion mass spectrometer (NanoSIMS) were prepared and applied to Hf-W dating of a differentiated meteorite classified as mesosiderite. The standard zircons
Externí odkaz:
https://doaj.org/article/7c818fe2fe9b4e19a685ad6fb4c7dce4
Autor:
Takashi Yuguchi, Kozue Ishibashi, Shuhei Sakata, Tatsunori Yokoyama, Daichi Itoh, Yasuhiro Ogita, Koshi Yagi, Takeshi Ohno
Publikováno v:
Data in Brief, Vol 32, Iss , Pp 106092- (2020)
Simultaneous determination of zircon U–Pb age and titanium concentration for a single analysis spot gives both the crystallization age and temperature. In laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) analysis, it is chall
Externí odkaz:
https://doaj.org/article/7293c6824f484146913a44a925e8b54e
Autor:
Yukio Isozaki, Shinji Yamamoto, Shuhei Sakata, Hideyuki Obayashi, Takafumi Hirata, Ken-ichi Obori, Toshinori Maebayashi, Satoshi Takeshima, Toshikazu Ebisuzaki, Shigenori Maruyama
Publikováno v:
Geoscience Frontiers, Vol 9, Iss 4, Pp 1073-1083 (2018)
Despite the recent development in radiometric dating of numerous zircons by LA-ICPMS, mineral separation still remains a major obstacle, particularly in the search for the oldest material on Earth. To improve the efficiency in zircon separation by an
Externí odkaz:
https://doaj.org/article/24ef833ac5eb48e8aa6496f644b67b0f
Publikováno v:
Geoscience Frontiers, Vol 9, Iss 4, Pp 1099-1115 (2018)
U-Pb ages of detrital zircons were newly dated for 4 Archean sandstones from the Pilbara craton in Australia, Wyoming craton in North America, and Kaapvaal craton in Africa. By using the present results with previously published data, we compiled the
Externí odkaz:
https://doaj.org/article/12dd2cc4221944eaa5e6af05aa6f65ba
Autor:
Yusuke Sawaki, Mathieu Moussavou, Tomohiko Sato, Kazue Suzuki, Cédric Ligna, Hisashi Asanuma, Shuhei Sakata, Hideyuki Obayashi, Takafumi Hirata, Amboise Edou-Minko
Publikováno v:
Geoscience Frontiers, Vol 8, Iss 2, Pp 397-407 (2017)
The Francevillian Group in Gabonese Republic was recently established as a typical sedimentary sequence for the Paleoproterozoic. However, its age is rather poorly constrained, mainly based on Rb-Sr and Nd-Sm datings. This study reports new zircon da
Externí odkaz:
https://doaj.org/article/34c440dd116c48d2b4c14f1138172506
Autor:
Tsuyoshi Komiya, Shinji Yamamoto, Shogo Aoki, Keiko Koshida, Masanori Shimojo, Yusuke Sawaki, Kazumasa Aoki, Shuhei Sakata, Takaomi D. Yokoyama, Kenshi Maki, Akira Ishikawa, Takafumi Hirata, Kenneth D. Collerson
Publikováno v:
Geoscience Frontiers, Vol 8, Iss 2, Pp 355-385 (2017)
The Archean continental crusts account for ca. 20% of the present volume, but the thermal history of the Earths' mantle suggests much more continental crusts were formed in the early Archean. Because the Archean continental crust underwent severe met
Externí odkaz:
https://doaj.org/article/ee91ed126bad4991bb27a7780199979d
Autor:
Yukio Isozaki, Anne Põldvere, Heikki Bauert, Hiroki Nakahata, Kazumasa Aoki, Shuhei Sakata, Takafumi Hirata
Publikováno v:
Estonian Journal of Earth Sciences, Vol 63, Iss 4, Pp 251-256 (2014)
In order to clarify the tectono-sedimentary history of Paleozoic Baltica, age spectra of detrital zircon grains from the Ediacaran (Kotlin Regional Stage) and Lower Cambrian sandstones (lowermost Lontova and Lükati formations) in western Estonia in
Externí odkaz:
https://doaj.org/article/38774cbe12764d5bb548751e738d7eb1
Autor:
Nobuaki Chinzei, Shinya Hayashi, Takeshi Ueha, Takaaki Fujishiro, Noriyuki Kanzaki, Shingo Hashimoto, Shuhei Sakata, Shinsuke Kihara, Masahiko Haneda, Yoshitada Sakai, Ryosuke Kuroda, Masahiro Kurosaka
Publikováno v:
PLoS ONE, Vol 10, Iss 5, p e0125765 (2015)
The potential relationship between cell cycle checkpoint control and tissue regeneration has been indicated. Despite considerable research being focused on the relationship between p21 and myogenesis, p21 function in skeletal muscle regeneration rema
Externí odkaz:
https://doaj.org/article/3a2d35307557435abb91ee493871478b
Publikováno v:
Gondwana Research. 119:204-226
Autor:
Takashi Yuguchi, Daichi Itoh, Tatsunori Yokoyama, Shuhei Sakata, Satoshi Suzuki, Yasuhiro Ogita, Koshi Yagi, Takumi Imura, Satoko Motai, Takeshi Ohno
Publikováno v:
Lithos. :107026