Shuhei Sakata

Last updated: Oct 23, 2018 at 19:05

Name	Shuhei Sakata
E-mail	shuhei.sakatagakushuin.ac.jp
Affiliation	Gakushuin University

Research Interests

LA-ICPMS(4) , Geochronology(24) , Geochemistry(143)

Research Areas

Earth and planetary science / Geochemistry/Cosmochemistry / Geochronology

Academic & Professional Experience

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Apr 2016

Today

Department of Chemistry, Gakushuin University

Published Papers

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P21 Deficiency Delays Regeneration of Skeletal Muscular Tissue

Chinzei Nobuaki, Hayashi Shinya, Ueha Takeshi, Fujishiro Takaaki, Kanzaki Noriyuki, Hashimoto Shingo, Sakata Shuhei, Kihara Shinsuke, Haneda Masahiko, Sakai Yoshitada, Kuroda Ryosuke, Kurosaka Masahiro

PLOS ONE 10(5) May 2015 [Refereed]

Misc

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Occurrence and geochronology of the Eoarchean, ~3.9 Ga, Iqaluk Gneiss in the Saglek Block, northern Labrador, Canada: Evidence for the oldest supracrustal rocks in the world

Masanori Shimojo, Shinji Yamamoto, Shuhei Sakata, Takaomi D. Yokoyama, Kenshi Maki, Yusuke Sawaki, Akira Ishikawa, Kazumasa Aoki, Shogo Aoki, Keiko Koshida, Takayuki Tashiro, Takafumi Hirata, Kenneth D. Collerson, Kenneth D. Collerson, Tsuyoshi Komiya

Precambrian Research 278 218-243 Jun 2016

© 2016 Elsevier B.V. Understanding Earth's early evolution requires decoding the cryptic geological record that is preserved in a few extremely rare terrains on Earth. The Saglek-Hebron Block in the North Atlantic Craton is one of the oldest terra...

U–Pb zircon geochronology of the North Pole Dome adamellite in the eastern Pilbara Craton

Hisashi Asanuma, Yusuke Sawaki, Shuhei Sakata, Hideyuki Obayashi, Kazue Suzuki, Kouki Kitajima, Takafumi Hirata, Shigenori Maruyama

Island Arc 27 Jul 2018

© 2018 John Wiley & Sons Australia, Ltd Supracrustal rocks around the North Pole Dome area, Western Australia, provide valuable information regarding early records of the evolution of crustal processes, surface environments, and biosphere. Owing...

Formation and Geological Sequestration of Uranium Nanoparticles in Deep Granitic Aquifer

Yohey Suzuki, Hiroki Mukai, Toyoho Ishimura, Takaomi D. Yokoyama, Shuhei Sakata, Takafumi Hirata, Teruki Iwatsuki, Takashi Mizuno

Scientific Reports 6 Mar 2016

The stimulation of bacterial activities that convert hexavalent uranium, U(VI), to tetravalent uranium, U(IV), appears to be feasible for cost-effective remediation of contaminated aquifers. However, U(VI) reduction typically results in the precip...

Melting Phase Relations and Element Partitioning in MORB to Lowermost Mantle Conditions

Shigehiko Tateno, Kei Hirose, Kei Hirose, Shuhei Sakata, Shuhei Sakata, Kyoko Yonemitsu, Haruka Ozawa, Haruka Ozawa, Haruka Ozawa, Takafumi Hirata, Takafumi Hirata, Naohisa Hirao, Yasuo Ohishi

Journal of Geophysical Research: Solid Earth 123 5515-5531 Jul 2018

©2018. American Geophysical Union. All Rights Reserved. Melting phase relations and crystal-melt element partitioning in a mid-oceanic ridge basalt bulk composition were studied to 135 GPa using laser-heated diamond-anvil cell techniques. Using fi...

Secular change in lifetime of granitic crust and the continental growth: A new view from detrital zircon ages of sandstones

Hikaru Sawada, Yukio Isozaki, Shuhei Sakata, Takafumi Hirata, Shigenori Maruyama

Geoscience Frontiers 9 1099-1115 Jul 2018

© 2018 China University of Geosciences (Beijing) and Peking University 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...

Detrital zircon geochronology by LA-ICP-MS of the Neoarchean Manjeri Formation in the Archean Zimbabwe craton- the disappearance of Eoarchean crust by 2.7 Ga?

Hikaru Sawada, Shigenori Maruyama, Shuhei Sakata, Takafumi Hirata

Journal of African Earth Sciences 113 1-11 Jan 2016

© 2015 Elsevier Ltd. For the ca. 2.7 Ga (Neoarchean) clastic rocks in the Belingwe greenstone belt (Manjeri Formation), U-Pb age of detrital zircon grains were analyzed by Laser Ablation Inductively Coupled Plasma Mass Spectrometry (LA-ICP-MS). Th...

High-reliability zircon separation for hunting the oldest material on Earth: An automatic zircon separator with image-processing/microtweezers-manipulating system and double-step dating

Yukio Isozaki, Shinji Yamamoto, Shinji Yamamoto, Shuhei Sakata, Shuhei Sakata, Hideyuki Obayashi, Takafumi Hirata, Takafumi Hirata, Ken ichi Obori, Toshinori Maebayashi, Satoshi Takeshima, Toshikazu Ebisuzaki, Shigenori Maruyama

Geoscience Frontiers 9 1073-1083 Jul 2018

© 2018 China University of Geosciences (Beijing) and Peking University 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 olde...

Possible polymetamorphism and brine infiltration recorded in the garnet-sillimanite gneiss, Skallevikshalsen, Lützow-Holm Complex, east Antarctica

Tetsuo Kawakami, Tomokazu Hokada, Tomokazu Hokada, Shuhei Sakata, Takafumi Hirata

Journal of Mineralogical and Petrological Sciences 111 129-143 Jan 2016

Chlorine-rich (>0.3 wt%Cl) biotite inclusions in the core of garnet porphyroblasts in the garnet-sillimanite (Grt-Sil) gneiss from Skallevikshalsen, Lützow-Holm Complex (LHC), East Antarctica is estimated to be stable under >1.2 GPa, 820-850°C, co...

Determination of strontium 90 in environmental samples by triple quadrupole ICP-MS and its application to Fukushima soil samples

Takeshi Ohno, Mutsumi Hirono, Shinichiro Kakuta, Shuhei Sakata

Journal of Analytical Atomic Spectrometry 33 1081-1085 Jun 2018

© 2018 The Royal Society of Chemistry. The determination of90Sr by ICP-MS is capable of providing a high sample throughput compared with radiometric analytical methods. Although the isobaric interference caused by90Zr ions can be reduced by reacti...

Zircon growth in a granitic pluton with specific mechanisms, crystallization temperatures and U-Pb ages: Implication to the 'spatiotemporal' formation process of the Toki granite, central Japan

Takashi Yuguchi, Takashi Yuguchi, Hideki Iwano, Takenori Kato, Shuhei Sakata, Kentaro Hattori, Takafumi Hirata, Shigeru Sueoka, Tohru Danhara, Masayuki Ishibashi, Eiji Sasao, Tadao Nishiyama

Journal of Mineralogical and Petrological Sciences 111 9-34 Jan 2016

Zircons collected from a granitic pluton provide evidence of serial growth events with specific mechanisms, crystallization temperatures and U-Pb ages, revealing details of the sequential formation process from intrusion through emplacement to cry...

Spatiotemporal evolution of magmatic pulses and regional metamorphism during a Cretaceous flare-up event: Constraints from the Ryoke belt (Mikawa area, central Japan)

Kota Takatsuka, Tetsuo Kawakami, Etienne Skrzypek, Shuhei Sakata, Shuhei Sakata, Hideyuki Obayashi, Takafumi Hirata, Takafumi Hirata

Lithos 308-309 428-445 May 2018

© 2018 Elsevier B.V. The spatiotemporal relationship between granitoid intrusions and low-pressure/temperature type regional metamorphism in the Ryoke belt (Mikawa area) is investigated to understand the tectono-thermal evolution of the upper- to ...

Fission track and U-Pb zircon ages of psammitic rocks from the Harushinai unit, Kamuikotan metamorphic rocks, central Hokkaido, Japan: Constraints on metamorphic histories

Ayumi S. Okamoto, Toru Takeshita, Hideki Iwano, Tohru Danhara, Takafumi Hirata, Hirotsugu Nishido, Shuhei Sakata, Shuhei Sakata

Island Arc 24 379-403 Dec 2015

© 2015 Wiley Publishing Asia Pty Ltd. Accurate pressure-temperature-time (P-T-t) paths of rocks from sedimentation through maximum burial to exhumation are needed to determine the processes and mechanisms that form high-pressure and low-temperatur...

Copper isotopic fractionation during adsorption on manganese oxide: Effects of pH and desorption

Yuta Ijichi, Takeshi Ohno, Shuhei Sakata

Geochemical Journal 52 Jan 2018

Copyright © 2018 by The Geochemical Society of Japan. We report new results for Cu2+adsorption on d-MnO2and the resulting changes in Cu isotopic composition due to isotopic fractionation. The adsorption experiments were designed as a pH series (3....

Cambrian plutonism in Northeast Japan and its significance for the earliest arc-trench system of proto-Japan: New U-Pb zircon ages of the oldest granitoids in the Kitakami and Ou Mountains

Y. Isozaki, M. Ehiro, H. Nakahata, K. Aoki, K. Aoki, S. Sakata, T. Hirata

Journal of Asian Earth Sciences 108 136-149 Aug 2015

© 2015 Elsevier Ltd. In order to clarify the early history of Japan, particularly during the Early Paleozoic, pre-Devonian granitoids in the South Kitakami Belt (SKB), NE Japan were dated by U-Pb zircon age by laser-ablation inductively coupled pl...

The Late Jurassic magmatic protoliths of the Mikabu greenstones in SW Japan: A fragment of an oceanic plateau in the Paleo-Pacific Ocean

Hikaru Sawada, Yukio Isozaki, Shogo Aoki, Shogo Aoki, Shuhei Sakata, Yusuke Sawaki, Ryo Hasegawa, Yasuo Nakamura

Journal of Asian Earth Sciences Jan 2018

© 2018 Elsevier Ltd The Mikabu greenstones form accreted fragments of an ancient oceanic plateau, which are currently incorporated within the Cretaceous high P/T-type Sanbagawa metamorphic belt in SW Japan. Previous geological and petrological stu...

Geochemical behavior of zirconium during Cl-rich fluid or melt infiltration under upper amphibolite facies metamorphism - A case study from Brattnipene, Sør Rondane Mountains, East Antarctica

Fumiko Higashino, Tetsuo Kawakami, Noriyoshi Tsuchiya, M. Satish-Kumar, Masahiro Ishikawa, Geoffrey H. Grantham, Shuhei Sakata, Kentaro Hattori, Takafumi Hirata

Journal of Mineralogical and Petrological Sciences 110 166-178 Jan 2015

The appropriateness of Zr as an 'immobile element' during garnet-hornblende (Grt-Hbl) vein formation potentially caused by the Cl-rich fluid or melt infiltration under upper amphibolite facies condition is examined. The sample used is a Grt-Hbl ve...

Age gap between the intrusion of gneissose granitoids and regional high-temperature metamorphism in the Ryoke belt (Mikawa area), central Japan

Kota Takatsuka, Tetsuo Kawakami, Etienne Skrzypek, Shuhei Sakata, Shuhei Sakata, Hideyuki Obayashi, Takafumi Hirata, Takafumi Hirata

Island Arc 27 Jan 2018

© 2017 John Wiley & Sons Australia, Ltd The relationships between the intrusion of gneissose granitoids and the attainment of regional high-T conditions recorded in metamorphic rocks from the Ryoke belt of the Mikawa area, central Japan, are exp...

Isotopic Analysis of tungsten using multiple collector-inductively coupled plasma-mass spectrometer coupled with electrothermal vaporization technique

Satoki Okabayashi, Shuhei Sakata, Takafumi Hirata

Analytica Chimica Acta 853 469-476 Jan 2015

© 2014 Elsevier B.V. We have developed a micro-electrothermal vaporization (μETV) device for the multiple collector-ICP-mass spectrometry (μETV-MC-ICPMS) to improve analytical precision in the 182W/183W and 184W/183W ratio measurements from nanogr...

A practical method for calculating the U-Pb age of Quaternary zircon: Correction for common Pb and initial disequilibria

Shuhei Sakata

Geochemical Journal 52 281-286 Jan 2018

© 2018 by The Geochemical Society of Japan. To obtain accurate crystallization ages from Quaternary zircon, it is necessary to consider the contributions of common Pb and initial disequilibria caused by Th/U and Pa/U fractionation in the zircon-me...

Mid-Paleozoic arc granitoids in SW Japan with Neoproterozoic xenocrysts from South China: New zircon U-Pb ages by LA-ICP-MS

Kazumasa Aoki, Kazumasa Aoki, Yukio Isozaki, Atsushi Yamamoto, Shuhei Sakata, Takafumi Hirata

Journal of Asian Earth Sciences 97 125-135 Jan 2015

© 2014 Elsevier Ltd. The Kurosegawa belt in SW Japan preserves fragments of Early-Middle Paleozoic granitoids traditionally called the Mitaki igneous rocks and previously dated ca. 470-435. Ma by several isotope analyses such as Rb-Sr, K-Ar and U-...

Detrital zircon multi-chronology, provenance, and low-grade metamorphism of the Cretaceous Shimanto accretionary complex, eastern Shikoku, Southwest Japan: Tectonic evolution in response to igneous activity within a subduction zone

Hidetoshi Hara, Yoshihiro Nakamura, Kousuke Hara, Toshiyuki Kurihara, Hiroshi Mori, Hideki Iwano, Tohru Danhara, Shuhei Sakata, Takafumi Hirata

Island Arc 26 Nov 2017

© 2017 John Wiley & Sons Australia, Ltd Detrital zircon multi-chronology combined with provenance and low-grade metamorphism analyses enables the reinterpretation of the tectonic evolution of the Cretaceous Shimanto accretionary complex in South...

Greater South China extended to the Khanka block: Detrital zircon geochronology of middle-upper Paleozoic sandstones in Primorye, Far East Russia

Yukio Isozaki, Hiroki Nakahata, Yuri D. Zakharov, Alexander M. Popov, Shuhei Sakata, Shuhei Sakata, Shuhei Sakata, Takafumi Hirata, Takafumi Hirata

Journal of Asian Earth Sciences 145 565-575 Sep 2017

© 2017 Elsevier Ltd In order to examine paleogeographic link between Primorye and Japan with respect to other continental blocks in East Asia, middle-upper Paleozoic shallow marine sandstones of the Khanka block and Sergeevka belt were analyzed by...

A revisit to the Higo terrane, Kyushu, Japan: The eastern extension of the North China–South China collision zone

Kenshi Suga, Tzen Fu Yui, Kazuhiro Miyazaki, Shuhei Sakata, Shuhei Sakata, Takafumi Hirata, Takafumi Hirata, Mayuko Fukuyama

Journal of Asian Earth Sciences 143 218-235 Aug 2017

© 2017 Elsevier Ltd The Higo and Manotani high-T metamorphic rocks belong to the Higo terrane, central Kyushu, Japan. This terrane has been suggested as the eastern extension of the North China–South China collision zone based mainly on the simila...

Age spectra of detrital zircon of the Jurassic clastic rocks of the Mino-Tanba AC belt in SW Japan: Constraints to the provenance of the mid-Mesozoic trench in East Asia

Wataru Fujisaki, Yukio Isozaki, Kenshi Maki, Shuhei Sakata, Takafumi Hirata, Shigenori Maruyama

Journal of Asian Earth Sciences 88 62-73 Jul 2014

U-Pb ages of detrital zircon grains were determined from an upper Middle Jurassic siliceous mudstone and two lower Upper Jurassic sandstones of the Mino-Tanba belt, Southwest Japan, by Laser-ablation ICPMS. The age spectra of detrital zircon grain...

New isotopic age data constrain the depositional age and accretionary history of the Neoproterozoic-Ordovician Mona Complex (Anglesey-Lleyn, Wales)

Hisashi Asanuma, Wataru Fujisaki, Tomohiko Sato, Shuhei Sakata, Yusuke Sawaki, Kazumasa Aoki, Yoshihiro Okada, Shigenori Maruyama, Takafumi Hirata, Tetsumaru Itaya, Brian F. Windley

Tectonophysics 706-707 164-195 Jun 2017

© 2017 Elsevier B.V. The Mona Complex in Anglesey-Lleyn, Wales formed by Avalonian subduction and accretion from the latest Neoproterozoic to early Paleozoic. It comprises an ophiolite, high-pressure metamorphic rocks, volcaniclastic sediments and...

Accreted Kula plate fragment at 94Ma in the Yokonami-melange, Shimanto-belt, Shikoku, Japan

Takuya Saito, Yoshihiro Okada, Wataru Fujisaki, Yusuke Sawaki, Shuhei Sakata, James Dohm, Shigenori Maruyama, Takafumi Hirata

Tectonophysics 623 136-146 Jun 2014

The Cretaceous Shimanto belt that is distributed along the Pacific side of southwest Japan contains one of the best records of accretionary processes and history of oceanic plate subduction in the circum-Pacific region. Yokonami melange, Shimanto ...

A prolonged granitoid formation in Saglek Block, Labrador: Zonal growth and crustal reworking of continental crust in the Eoarchean

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, Kenneth D. Collerson

Geoscience Frontiers 8 355-385 Mar 2017

© 2016 China University of Geosciences (Beijing) and Peking University 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...

Determination of U-Pb ages for young zircons using laser ablation-ICP-mass spectrometry coupled with an ion detection attenuator device

Shuhei Sakata, Kentaro Hattori, Hideki Iwano, Takaomi D. Yokoyama, Tohru Danhara, Takafumi Hirata

Geostandards and Geoanalytical Research 38 409-420 Jan 2014

© 2014 The Authors. We have developed new analytical procedures to measure precise and accurate 238U-206Pb and 235U-207Pb ages for young (~ 1 Ma) zircons using laser ablation-ICP-mass spectrometry. For young zircons, both careful correction for th...

Chronological constraints on the Paleoproterozoic Francevillian Group in Gabon

Yusuke Sawaki, Mathieu Moussavou, Tomohiko Sato, Kazue Suzuki, Cédric Ligna, Hisashi Asanuma, Shuhei Sakata, Hideyuki Obayashi, Takafumi Hirata, Amboise Edou-Minko

Geoscience Frontiers 8 397-407 Mar 2017

© 2016 China University of Geosciences (Beijing) and Peking University The Francevillian Group in Gabonese Republic was recently established as a typical sedimentary sequence for the Paleoproterozoic. However, its age is rather poorly constrained,...

Detrital zircon ages of Cambrian and Devonian sandstones from Estonia, central Baltica: A possible link to Avalonia during the Late Neoproterozoic

Anne Põldvere, Yukio Isozaki, Heikki Bauert, Juho Kirs, Kazumasa Aoki, Shuhei Sakata, Takafumi Hirata

GFF 136 214-217 Jan 2014

Detrital zircon U-Pb ages of Lower Cambrian and Middle Devonian have been determined for sandstone in Estonia through LA-ICP-MS (Nu instruments, Wrexham, UK). Both sandstones have a similar zircon age spectrum with distinct age clusters that refle...

In situ²⁰⁷Pb/²⁰⁶Pb isotope ratio measurements using two Daly detectors equipped on an ICP-mass spectrometer

Hideyuki Obayashi, Michitaka Tanaka, Kentaro Hattori, Shuhei Sakata, Shuhei Sakata, Takafumi Hirata, Takafumi Hirata, Takafumi Hirata

Journal of Analytical Atomic Spectrometry 32 686-691 Mar 2017

© The Royal Society of Chemistry 2017. The simultaneous detection of206Pb and207Pb ions has been made by multiple-ion counting ICP-mass spectrometry using two Daly detectors (MC-ICPMS). To evaluate the long-term gain stability of the detectors,135...

LA-ICP-MS Pb-U dating of young zircons from the Kos-Nisyros volcanic centre, SE Aegean arc

M. Guillong, A. Von Quadt, S. Sakata, I. Peytcheva, O. Bachmann

Journal of Analytical Atomic Spectrometry 29 963-970 Jan 2014

Zircon Pb-U dating has become a key technique for answering many important questions in geosciences. This paper describes a new LA-ICP-MS approach. We show, using previously dated samples of a large quaternary rhyolitic eruption in the Kos-Nisyros...

A new approach for constraining the magnitude of initial disequilibrium in Quaternary zircons by coupled uranium and thorium decay series dating

Shuhei Sakata, Shinsuke Hirakawa, Hideki Iwano, Tohru Danhara, Marcel Guillong, Takafumi Hirata

Quaternary Geochronology 38 1-12 Mar 2017

© 2016 Elsevier B.V. We have measured238U–206Pb,235U–207Pb, and232Th–208Pb ages on Quaternary zircons by laser ablation, single-collector, magnetic sector inductively coupled plasma mass spectrometry (LA-ICP-MS). To obtain reliable ages for Quater...

New U-Pb zircon ages of the Sandbian (Upper Ordovician) "Big K-bentonite" in Baltoscandia (Estonia and Sweden) by LA-ICPMS

Heikki Bauert, Yukio Isozaki, Lars Erik Holmer, Kazumasa Aoki, Shuhei Sakata, Takafumi Hirata

GFF 136 30-33 Jan 2014

Oscillatory-zoned euhedral single zircons from the upper Sandbian (Upper Ordovician) Kinnekulle K-bentonite exposed in a hillock at Pääsküla in Estonia and at the type locality on Mt Kinnekulle in Sweden were dated in a grain-by-grain manner by la...

Prograde infiltration of Cl-rich fluid into the granulitic continental crust from a collision zone in East Antarctica (Perlebandet, Sør Rondane Mountains)

Tetsuo Kawakami, Fumiko Higashino, Fumiko Higashino, Etienne Skrzypek, M. Satish-Kumar, Geoffrey Grantham, Noriyoshi Tsuchiya, Masahiro Ishikawa, Shuhei Sakata, Takafumi Hirata

Lithos 274-275 73-92 Mar 2017

© 2016 Elsevier B.V. Utilizing microstructures of Cl-bearing biotite in pelitic and felsic metamorphic rocks, the timing of Cl-rich fluid infiltration is correlated with the pressure-temperature-time (P-T-t) path of upper amphibolite- to granulite...

Provenance diversification within an arc-trench system induced by batholith development: The Cretaceous Japan case

Kazumasa Aoki, Yukio Isozaki, Daisuke Kofukuda, Tomohiko Sato, Atsushi Yamamoto, Kenshi Maki, Shuhei Sakata, Takafumi Hirata

Terra Nova 26 139-149 Jan 2014

By comparing detrital zircon U-Pb age spectra of coeval fore-arc and back-/intra-arc basin sandstones, we identified the overall distributary pattern of terrigenous clastic material within the Cretaceous arc system of SW Japan. Abundant Proterozoi...

Hydrogen diffusion in the apatite-water system: Fluorapatite parallel to the c-axis

Yoshinori Higashi, Shoichi Itoh, Minako Hashiguchi, Shuhei Sakata, Takafumi Hirata, Ken Watanabe, Isao Sakaguchi

Geochemical Journal 51 115-122 Jan 2017

© Copyright 2017 by The Geochemical Society of Japan. Many studies in the past decade have sought to explore the origin and evolution of water in planetary bodies based on the hydrogen isotopic compositions of apatite. However, no investigation ha...

Provenance shift in Cambrian mid-Baltica: Detrital zircon chronology of Ediacaran–Cambrian sandstones in Estonia

Yukio Isozaki, Anne Põldvere, Heikki Bauert, Hiroki Nakahata, Kazumasa Aokia, Kazumasa Aokia, Shuhei Sakata, Takafumi Hirata

Estonian Journal of Earth Sciences 63 251-256 Jan 2014

© 2014, Estonian Academy Publishers. All rights reserved. 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 (low...

U-Pb age determination for zircons using laser ablation-ICP-mass spectrometry equipped with six multiple-ion counting detectors

Kentaro Hattori, Shuhei Sakata, Michitaka Tanaka, Yuji Orihashi, Takafumi Hirata, Takafumi Hirata

Journal of Analytical Atomic Spectrometry 32 88-95 Jan 2017

© 2017 The Royal Society of Chemistry. Precise zircon U-Pb age determinations have been made on Plešovice zircon using laser ablation-multiple ion counting-inductively coupled plasma-mass spectrometry (LA-MIC-ICP-MS). To achieve high precision and...

The eastern extension of Paleozoic South China in NE Japan evidenced by detrital zircon

Yukio Isozaki, Kazumasa Aoki, Shuhei Sakata, Takafumi Hirata

GFF 136 116-119 Jan 2014

The South Kitakami belt is unique in exposing a thick, well-preserved Paleozoic shelf sequence in Japan in which Phanerozoic accretionary complexes dominate. Its origin with respect to continental blocks has been debated in regard of two options, ...

Quantitative elemental bioimaging protocol using femtosecond-laser ablation-ICPMass spectrometry coupled with glass standard reference material

Yoshiki Makino, Seiya Ohara, Marina Yamada, Sho Mukoyama, Kentaro Hattori, Shuhei Sakata, Shuhei Sakata, Yuki Tanaka, Toshihiro Suzuki, Atsuko Shinohara, Atsuko Shinohara, Takehisa Matsukawa, Kazuhito Yokoyama, Takafumi Hirata, Takafumi Hirata

Metallomics: Recent Analytical Techniques and Applications 93-106 Jan 2017

© Springer Japan KK 2017. We have developed new analytical technique for the quantitative elemental imaging for trace elements using a femtosecond-laser ablation-ICP-mass spectrometry (fs-LA-ICP-MS). With the laser ablation under the finely contro...

Thermal evolution of the Tseel terrane, SW Mongolia and its relation to granitoid intrusions in the Central Asian Orogenic Belt

U. Burenjargal, A. Okamoto, T. Kuwatani, S. Sakata, T. Hirata, N. Tsuchiya

Journal of Metamorphic Geology 32 765-790 Jan 2014

The timing and thermal effects of granitoid intrusions into accreted sedimentary rocks are important for understanding the growth process of continental crust. In this study, the petrology and geochronology of pelitic gneisses in the Tseel area of...

New chronological constraints on Neoarchean gneisses, Proterozoic cover sediments, and Triassic granite, Jixian, China

Yusuke Sawaki, Yibing Li, Hisashi Asanuma, Shuhei Sakata, Kazue Suzuki, Takafumi Hirata, Brian F. Windley

Palaeogeography, Palaeoclimatology, Palaeoecology 459 182-197 Oct 2016

© 2016 Elsevier B.V. In the eastern North China Craton, basement gneisses are covered by poorly dated Late Paleoproterozoic to Early Neoproterozoic sediments. This study reports new zircon data from the Jixian area to constrain the protolith age o...

U-Pb dating of CA/non-CA treated zircons obtained by LA-ICP-MS and CA-TIMS techniques: Impact for their geological interpretation

A. Von Quadt, D. Gallhofer, M. Guillong, I. Peytcheva, I. Peytcheva, M. Waelle, S. Sakata

Journal of Analytical Atomic Spectrometry 29 1618-1629 Jan 2014

Chemical Abrasion Isotope-Dilution Thermal Ionization Mass Spectrometry (CA-ID-TIMS) is known as a high precision technique for resolving lead loss and improving the interpretation of U-Pb zircon age data. Here, we argue that combining CA with the...

Revisiting the high temperature metamorphic field gradient of the Ryoke Belt (SW Japan): New constraints from the Iwakuni-Yanai area

Etienne Skrzypek, Tetsuo Kawakami, Takao Hirajima, Shuhei Sakata, Takafumi Hirata, Takeshi Ikeda

Lithos 260 9-27 Sep 2016

© 2016 Elsevier B.V. We revisit the origin of the metamorphic field gradient exposed in the Ryoke Belt (SWJapan) - the type locality for low pressure/high temperature (LP/HT) conditions - based on combined structural, petrological and geochronolog...

レーザーアブレーションICP‐MSの進歩と展望

平田岳史, 坂田周平, 藤本万寿人

ぶんせき (1) 9-16 Jan 2016

Detrital Zircon Age Spectra of the Upper Cretaceous Atogura and Tochiya Formations in the Northern Kanto Mountains, SW Japan Evidence of Across-arc Link to the Hida Belt

中畑浩基, 磯崎行雄, 小坂和夫, 坂田周平, 平田岳史

地学雑誌 124(4) 633-656 (J-STAGE) 2015

Analytical Capabilities of Elemental Imaging Using Laser Ablation-ICP-Mass Spectrometry

平田岳史, 坂田周平, 槇納好岐, 小原聖也, 向山翔, 服部健太郎, 杉浦悠毅, 杉浦悠毅, WALCZYK Thomas, 昆慶明, 折橋裕二, 鈴木敏弘

J Mass Spectrom Soc Jpn 63(6) 153-158 (J-STAGE) 2015

Reconstruction of ocean plate stratigraphy in the Gwna Group, NW Wales: Implications for the subduction-accretion process of a latest Proterozoic trench-forearc

Hisashi Asanuma, Yoshihiro Okada, Wataru Fujisaki, Kazue Suzuki, Tomohiko Sato, Yusuke Sawaki, Shuhei Sakata, Shinji Yamamoto, Takafumi Hirata, Shigenori Maruyama, Brian F. Windley

Tectonophysics 662 195-207 Dec 2014

© 2015 Elsevier B.V. The Gwna Group in Anglesey island and Lleyn peninsula, Wales consists of a latest Proterozoic volcano-sedimentary trench mélange, which has a complicated accretionary structure, and is poorly constrained by isotopic ages. The ...

Ordovician ocean plate stratigraphy and thrust duplexes of the Ballantrae Complex, SW Scotland: Implications for the pelagic deposition rate and forearc accretion in the closing Iapetus Ocean

Wataru Fujisaki, Hisashi Asanuma, Kazue Suzuki, Yusuke Sawaki, Shuhei Sakata, Takafumi Hirata, Shigenori Maruyama, Brian F. Windley

Tectonophysics 662 312-327 Nov 2014

© 2015 Elsevier B.V. The Ballantrae Complex (at Bennane Lea in SW Scotland) contains important ocean plate stratigraphy (basalt, chert, mudstone, sandstone) in an accretionary prism that is associated with a classic Ordovician ophiolite. We used t...