Hiroshi Amakawa

J-GLOBAL         Last updated: Apr 22, 2019 at 15:49
 
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Name
Hiroshi Amakawa
E-mail
hiroamakawagmail.com
Affiliation
Japan Agency for Marine-Earth Science and Technology

Research Interests

 
 

Research Areas

 
 

Academic & Professional Experience

 
Sep 2011
 - 
Jul 2014
Visiting Research Fellow, National Taiwan University
 

Awards & Honors

 
Jun 2011
Neodymium isotopic composition and concentration in the Southwest Pacific Ocean., 2013 The Geochemical Journal Award Paper, The Geochemical Society of Japan
Winner: H. Amakawa, H. Tazoe, H. Obata, T. Gamo, Y. Sano, C.-C. ShenHiroshi Amakawa
 

Published Papers

 
Amakawa Hiroshi, Yu Tsai-Luen, Tazoe Hirofumi, Obata Hajime, Gamo Toshitaka, Sano Yuji, Shen Chuan-Chou, Suzuki Katsuhiko
CHEMICAL GEOLOGY   511 190-203   Apr 2019   [Refereed]
Kozaka Yukiko, Horikawa Keiji, Asahara Yoshihiro, Amakawa Hiroshi, Okazaki Yusuke
GEOLOGY   46(10) 903-906   Oct 2018   [Refereed]
Amano Yosuke, Kuwahara Masayuki, Takahashi Toshiro, Shirai Kotaro, Yamane Kodai, Kawakami Tatsuya, Yokouchi Kazuki, Amakawa Hiroshi, Otake Tsuguo
FISHERIES SCIENCE   84(5) 799-813   Sep 2018   [Refereed]
Yu Saitoh, Takanori Nakano, Ki Cheol Shin, Jun Matsubayashi, Jun Matsubayashi, Yoshikazu Kato, Hiroshi Amakawa, Yutaka Osada, Yutaka Osada, Chikage Yoshimizu, Noboru Okuda, Yosuke Amano, Hiroyuki Togashi, Yutaka Kurita, Ichiro Tayasu
Ecosphere   9    Aug 2018   [Refereed]
© 2018 The Authors. Isotopic compositions of animal tissue are an intrinsic marker commonly used to trace animal origins and migrations; however, few isotopes are effective for this purpose in marine environments, especially on a local scale. The ...
Amakawa Hiroshi, Usui Akira, Iijima Koichi, Suzuki Katsuhiko
GEOCHEMICAL JOURNAL   51(6) E1-E7   2017   [Refereed]
Liu Yi, Lo Li, Shi Zhengguo, Wei Kuo-Yen, Chou Chien-Ju, Chen Yi-Chi, Chuang Chih-Kai, Wu Chung-Che, Mii Horng-Sheng, Peng Zicheng, Amakawa Hiroshi, Burr George S., Lee Shih-Yu, DeLong Kristine L., Elderfield Henry, Shen Chuan-Chou
NATURE COMMUNICATIONS   6    Nov 2015   [Refereed]
Amakawa Hiroshi, Tazoe Hirofumi, Obata Hajime, Gamo Toshitaka, Sano Yuji, Shen Chuan-Chou
GEOCHEMICAL JOURNAL   47(4) 409-422   2013   [Refereed]
Amano Yosuke, Kuwahara Masayuki, Takahashi Toshiro, Shirai Kotaro, Yamane Kodai, Amakawa Hiroshi, Otake Tsuguo
AQUATIC BIOLOGY   19(1) 85-95   2013   [Refereed]
Amakawa Hiroshi, Suzuki Takafumi, Takahashi Toshiro, Tatsumi Yoshiyuki, Otake Tsuguo
FISHERIES SCIENCE   78(5) 1023-1029   Sep 2012   [Refereed]
Kagoshima Takanori, Takahata Naoto, Jung Jinyoung, Amakawa Hiroshi, Kumagai Hidenori, Sano Yuji
GEOCHEMICAL JOURNAL   46(6) E21-E26   2012   [Refereed]
Amakawa Hiroshi, Sasaki Kazunori, Ebihara Mitsuru
GEOCHIMICA ET COSMOCHIMICA ACTA   73(16) 4705-4719   Aug 2009   [Refereed]
Shirai Kotaro, Kawashima Tatsunori, Sowa Kohki, Watanabe Tsuyoshi, Nakaniori Toru, Takahata Naoto, Arnakawa Hiroshi, Sano Yuji
GEOCHIMICA ET COSMOCHIMICA ACTA   72(22) 5386-5400   Nov 2008   [Refereed]
Sano Yuji, Shirai Kotaro, Takahata Naoto, Amakawa Hiroshi, Otake Tsuguo
APPLIED GEOCHEMISTRY   23(8) 2406-2413   Aug 2008   [Refereed]
Tracing migratory behavior of Ayu (Plecoglossus altivelis) using Sr isotopic composition of otolith
Amakawa H., Suzuki T., Takahashi T., Tatsumi Y., Otake T.
GEOCHIMICA ET COSMOCHIMICA ACTA   72(12) A18   Jul 2008   [Refereed]
Kinoshita N., Hashimoto T., Nakanishi T., Yokoyama A., Amakawa H., Mitsugashira T., Ohtsuki T., Takahashi N., Ahmad I., Greene J. P., Henderson D. J., Jiang C. L., Notani M., Pardo R. C., Patel N., Rehm K. E., Scott R., Vondrasek R., Jisonna L., Collon P., Robertson D., Schmitt C., Tang X. D., Kashiv Y., Nassar H., Paul M.
JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS   35(1)    Jan 2008   [Refereed]
Minor and trace element geochemistry of a branching coral Acropora sp skeleton
Shirai K., Takahata N., Amakawa H., Watanabe T., Kawashima T., Sowa K., Sano Y.
GEOCHIMICA ET COSMOCHIMICA ACTA   71(15) A933   Aug 2007   [Refereed]
Determination of lead isotopic ratios in ferromanganese crust by using MC-ICP-MS and NanoSIMS
Takata Y., Tanimzu A., Takahata N., Amakawa H., Sano Y.
GEOCHIMICA ET COSMOCHIMICA ACTA   71(15) A996   Aug 2007   [Refereed]
Amakawa Hiroshi, Nomura Miho, Sasaki Kazunori, Oura Yasuji, Ebihara Mitsuru
GEOPHYSICAL RESEARCH LETTERS   34(11)    Jun 2007   [Refereed]
Tazoe Hirofumi, Obata Hajime, Amakawa Hiroshi, Nozaki Yoshiyuki, Gamo Toshitaka
MARINE CHEMISTRY   103(1-2) 1-14   Jan 2007   [Refereed]
Amakawa H., Sasaki K., Ebihara M.
GEOCHIMICA ET COSMOCHIMICA ACTA   70(18) A13   Aug 2006   [Refereed]
Nomura M, Sato M, Amakawa H, Oura Y, Ebihara M
ANALYTICA CHIMICA ACTA   553(1-2) 58-63   Nov 2005   [Refereed]
Precise determination of Sc in natural waters by INAA coupled with preconcentration of Sc
Amakawa H, Nomura M, Sato M, Oura Y, Ebihara M
GEOCHIMICA ET COSMOCHIMICA ACTA   69(10) A872   May 2005   [Refereed]
Amakawa H, Nozaki Y, Alibo DS, Zhang J, Fukugawa K, Nagai H
GEOCHIMICA ET COSMOCHIMICA ACTA   68(4) 715-727   Feb 2004   [Refereed]
Amakawa H, Alibo DS, Nozaki Y
GEOCHEMICAL JOURNAL   38(6) 493-504   2004   [Refereed]
PGE abundances of several sediment samples
Amakawa H, Shirail N, Yamaguchi R, Minakawa M, Ebihara M
GEOCHIMICA ET COSMOCHIMICA ACTA   67(18) A14   Sep 2003   [Refereed]
The Ce and Nd isotope ratios in the surface seawater
Tazoe H, Amakawa H, Obata H, Nozaki Y
GEOCHIMICA ET COSMOCHIMICA ACTA   67(18) A479   Sep 2003   [Refereed]
Isotopic determintion of ultra trace U in meteorite samples by HR-ICP-MS
Chai JY, Miyamoto Y, Saito Y, Magara M, Sakurai S, Usuda S, Amakawa H, Oura Y, Ebihara M
GEOCHIMICA ET COSMOCHIMICA ACTA   67(18) A56   Sep 2003   [Refereed]
Enriched Sr-Nd isotopic signatures of the amphibolites in the Oki-Dogo Island, Japan: Evidence for crust-mantle interaction by deeply subducted continental crust
Arakawa Y, Kouta T, Kanda Y, Amakawa H
GEOCHIMICA ET COSMOCHIMICA ACTA   67(18) A22   Sep 2003   [Refereed]
Arakawa Y, Park KH, Kim NH, Song YS, Amakawa H
ISLAND ARC   12(2) 180-189   Jun 2003   [Refereed]
Shirai N, Nishino T, Li XL, Amakawa H, Ebihara M
GEOCHEMICAL JOURNAL   37(4) 531-536   2003   [Refereed]
Nd concentration and isotopic ratio in the waters of the Pacific Ocean
Amakawa H, Alibo DS, Fukugawa K, Zhang J, Nozaki Y
GEOCHIMICA ET COSMOCHIMICA ACTA   66(15A) A16   Aug 2002   [Refereed]
Nozaki Y, Yamamoto Y, Manaka T, Amakawa H, Snidvongs A
CONTINENTAL SHELF RESEARCH   21(13-14) 1435-1448   Aug 2001   [Refereed]
Zhang Y, Amakawa H, Nozaki Y
MARINE CHEMISTRY   75(1-2) 151-163   Jul 2001   [Refereed]
Arakawa Y, Saito Y, Amakawa L
TECTONOPHYSICS   328(1-2) 183-204   Dec 2000   [Refereed]
Tanaka T, Togashi S, Kamioka H, Amakawa H, Kagami H, Hamamoto T, Yuhara M, Orihashi Y, Yoneda S, Shimizu H, Kunimaru T, Takahashi K, Yanagi T, Nakano T, Fujimaki H, Shinjo R, Asahara Y, Tanimizu M, Dragusanu C
CHEMICAL GEOLOGY   168(3-4) 279-281   Aug 2000   [Refereed]
Miyata Y, Tokieda T, Amakawa H, Uematsu M, Nozaki Y
TELLUS SERIES B-CHEMICAL AND PHYSICAL METEOROLOGY   52(4) 1057-1065   Aug 2000   [Refereed]
Amakawa H, Alibo DS, Nozaki Y
GEOCHIMICA ET COSMOCHIMICA ACTA   64(10) 1715-1727   May 2000   [Refereed]
Sano Y, Terada K, Hidaka H, Nishio Y, Amakawa H, Nozaki Y
ANALYTICAL SCIENCES   15(8) 743-748   Aug 1999   [Refereed]
Nozaki Y, Alibo DS, Amakawa H, Gamo T, Hasumoto H
GEOCHIMICA ET COSMOCHIMICA ACTA   63(15) 2171-2181   Aug 1999   [Refereed]
Determination of indium in natural waters by flow injection inductively coupled plasma mass spectrometry
Alibo DS, Amakawa H, Nozaki Y
PROCEEDINGS OF THE INDIAN ACADEMY OF SCIENCES-EARTH AND PLANETARY SCIENCES   107(4) 359-366   Dec 1998   [Refereed]
Arakawa Y, Kurosawa M, Takahashi K, Kobayashi Y, Tsukui M, Amakawa H
JOURNAL OF VOLCANOLOGY AND GEOTHERMAL RESEARCH   80(3-4) 179-194   Feb 1998   [Refereed]
Nozaki Y, Zhang J, Amakawa H
EARTH AND PLANETARY SCIENCE LETTERS   148(1-2) 329-340   Apr 1997   [Refereed]
Amakawa H, Nozaki Y, Masuda A
CHEMICAL GEOLOGY   131(1-4) 183-195   Sep 1996   [Refereed]
Amakawa H, Alibo DS, Nozaki Y
GEOPHYSICAL RESEARCH LETTERS   23(18) 2473-2476   Sep 1996   [Refereed]
J. Zhang, H. Amakawa, Y. Nozaki
Geophysical Research Letters   21 2677-2680   Jan 1994   [Refereed]
Yttrium has long been recognized as an ekalanthanide, because of its chemical contiguity relative to the chemistries of rare earth elements which are, in recent years, intensively utilized for elucidation of metal scavenging processes in the ocean...
Hiroshi Amakawa, Hiroshi Shimizu, Akimasa Masuda
Earth and Planetary Science Letters   111 563-565   Jan 1992   [Refereed]
Hiroshi Amakawa, Johan Ingri, Akimasa Masuda, Hiroshi Shimizu
Earth and Planetary Science Letters   105 554-565   Jan 1991   [Refereed]
Ferromanganese nodules from the Pacific and Atlantic Oceans, the Barents and Baltic Seas, and the Gulf of Bothnia were analyzed for the isotopic compositions of Ce, Nd and Sr and the abundances of REE, Ba and Sr. REE patterns of Barents, Baltic an...

Misc

 
Hiroshi Amakawa, Yusuke Fukami, Junji Torimoto, Tatsuo Nozaki, Koichi Iijima, Akira Usui, Katsuhiko Suzuki
Proceedings of the International Offshore and Polar Engineering Conference   2018-June 81-85   Jan 2018   [Refereed]
Copyright © 2018 by the International Society of Offshore and Polar Engineers (ISOPE) Vertical profiles of seawater neodymium (Nd) concentration and isotopic composition were determined for a location near the Takuyo-Daigo Seamount in the northwes...
後藤孝介, 天川裕史, 坂口綾
地球化学   52(4) 211‐227(J‐STAGE)   2018
深海雄介, 柏原輝彦, 天川裕史, 臼井朗, 鈴木勝彦
日本地球化学会年会要旨集(Web)   65th ROMBUNNO.1C07(J‐STAGE)   2018
天川裕史, 深海雄介, 鳥本淳司, 野崎達生, 飯島耕一, 臼井朗, 鈴木勝彦
日本地球化学会年会要旨集(Web)   65th ROMBUNNO.3B04(J‐STAGE)   2018
天川裕史, 鈴木勝彦
日本地球化学会年会要旨集(Web)   64th ROMBUNNO.1C11(J‐STAGE)   2017
天川裕史
日本海洋学会大会講演要旨集   2016 148   Aug 2016
天川裕史, 鈴木勝彦, 臼井朗
日本地球化学会年会講演要旨集   63rd 168   2016
Hiroshi Amakawa
Geochimica et Cosmochimica Acta   159 307   Jun 2015
天野洋典, 桑原雅之, 高橋俊郎, 白井厚太朗, 天川裕史, 大竹二雄
日本水産学会大会講演要旨集   2014 82   Mar 2014
天野洋典, 桑原雅之, 高橋俊郎, 白井厚太朗, 天川裕史, 大竹二雄
日本水産学会大会講演要旨集   2011 64   Mar 2011
鹿児島渉悟, 佐野有司, 高畑直人, JUNG J., 天川裕史, 熊谷英憲
日本地球化学会年会講演要旨集   58th 333   2011
天野洋典, 桑原雅之, 高橋俊郎, 白井厚太朗, 天川裕史, 大竹二雄
日本水産学会大会講演要旨集   2010 38   Sep 2010
大竹二雄, 天野洋典, 天川裕史, 高橋俊郎, 望岡典隆, 張成年, 黒木洋明, DOU Shouzen, 塚本勝巳
日本水産学会大会講演要旨集   2010 17   Sep 2010
天野洋典, 桑原雅之, 白井厚太朗, 高橋俊郎, 天川裕史, 大竹二雄
日本水産学会大会講演要旨集   2010 67   Mar 2010
木下哲一, PAUL M., Feinberg G., NASSAR H., COLLON P., KASHIV Y., ROBERTSON D., SCHMITT C., TANG X. D., DEIBEL C., DIGIOVINE B., GREENE J. P., HENDERSON D. J., JIANG C. L., KAY B., LEE H. Y., MARLEY S. T., PARDO R. C., PATEL N., REHM K. E., SCOTT R., VONDRASEK R., NOTANI M., FIGUEIRA J. M., GORIELY S., JISONNA L., 天川裕史, 高橋成人, 三頭聰明, 大槻勤, 廣瀬健太郎, 中西孝, 横山明彦
日本放射化学会年会・放射化学討論会研究発表要旨集   2009-53rd 33   Sep 2009
天川裕史
日本地球化学会年会講演要旨集   56th 346   2009
天川裕史, 鈴木隆史, 高橋俊郎, 巽好幸, 大竹二雄
日本地球化学会年会講演要旨集   55th 278   2008
豊島考作, 高畑直人, 白井厚太朗, 北島宏輝, 天川裕史, 佐野有司
日本地球化学会年会講演要旨集   55th 244   2008
鈴木隆史, 天川裕史, 高橋俊郎, 大竹二雄
日本水産学会大会講演要旨集   2007 120   Sep 2007
佐野有司, 白井厚太朗, 高畑直人, 天川裕史, 大竹二雄
日本地球化学会年会講演要旨集   54th 242-243   2007
高田雄一郎, 谷水雅治, 高畑直人, 天川裕史, 佐野有司
日本地球化学会年会講演要旨集   54th 67   2007
木下哲一, 天川裕史, 橋本知典, 高橋成人, 横山明彦, 中西孝
日本放射化学会年会・放射化学討論会研究発表要旨集   2004-48th 39   Oct 2004
田副博文, 小畑元, 天川裕史, 蒲生俊敬
日本海洋学会大会講演要旨集   2004 172   Mar 2004
桑山仁, 白井直樹, 大浦泰嗣, 天川裕史, 海老原充, 藤暢輔, 初川雄一, 大島真澄
日本地球化学会年会講演要旨集   51st 77   2004
天川裕史, ALIBO D, 野崎義行
日本地球化学会年会講演要旨集   51st 152-153   2004
能村美穂, 大浦泰嗣, 天川裕史, 海老原充
日本放射化学会年会・放射化学討論会講演要旨集   2003-47th 50   Oct 2003
天川裕史
ぶんせき   (7) 405   Jul 2003
天川裕史, 能村美穂, 大浦泰嗣, 海老原充
日本化学会講演予稿集   83rd(1) 209   Mar 2003
川原綾, 大浦泰嗣, 天川裕史, 海老原充
日本化学会講演予稿集   83rd(1) 210   Mar 2003
山口亮, 天川裕史, 海老原充
日本化学会講演予稿集   83rd(1) 209   Mar 2003
荒川洋二, 高橋裕平, OYUNGEREL S, 内藤一樹, 天川裕史
日本岩石鉱物鉱床学会学術講演会講演要旨集   2002 244   Oct 2002
白井直樹, 大浦泰嗣, 天川裕史, 海老原充
日本地球化学会年会講演要旨集   2002 211   Sep 2002
天川裕史, ALIBO D, 福川清貴, ZHANG J, 野崎義行
日本地球化学会年会講演要旨集   2002 34   Sep 2002
田副博文, 天川裕史, 西村和彦, 野崎義行
日本地球化学会年会講演要旨集   2002 39   Sep 2002
ZHANG Y, 天川裕史, 野崎義行
日本地球化学会年会講演要旨集   2001 254   Oct 2001
天川裕史, 野崎義行
日本地球化学会年会講演要旨集   2001 10   Oct 2001
天川裕史, アリボ ディア, 福川清貴, 張けい, 野崎義行
日本海洋学会大会講演要旨集   2001 266   Sep 2001
荒川洋二, 鈴木克裕, PARK K‐H, KIM N‐H, SONG Y‐S, 天川裕史
日本地質学会学術大会講演要旨   108th 209   Sep 2001
AMAKAWA Hiroshi
ぶんせき   316(4) 189-193   Apr 2001
Arakawa Yoji, Suzuki Yoshihiro, Park Kye-Hun, Kim Nam-Hoon, Song Yong-Sun, Amakawa Hiroshi
Annual Meeting of the Geological Society of Japan   2001(0)    2001
Arakawa Y., Kouta T., Amakawa H.
Annual Meeting of the Geological Society of Japan   2000(0)    2000
Nishio Yoshiro, Amakawa Hiroshi, Gamo Toshitaka, Nozaki Yoshiyuki, Sano Yuji
PROGRAMME AND ABSTRACTS THE VOLCANOLOGICAL SOCIETY OF JAPAN   1999(0)    1999
鈴木勝彦, HULBERT L, 宮田佳樹, 天川裕史, 野崎義行
日本地球化学会年会講演要旨集   1998 279   Oct 1998
時枝隆之, 宮田佳樹, 天川裕史, 野崎義行
日本地球化学会年会講演要旨集   1998 26   Oct 1998
天川裕史, 間仲利樹, 野崎義行
地球惑星科学関連学会合同大会予稿集   1998 82   May 1998
宮田佳樹, 時枝隆之, 天川裕史, 野崎義行
地球惑星科学関連学会合同大会予稿集   1998 81   May 1998
天川裕史
日産科学振興財団研究報告書   20(20) 135-138   Dec 1997
ALIBO D S, 野崎義行, 天川裕史, JEANDEL C
日本地球化学会年会講演要旨集   1997 297   Sep 1997
鈴木勝彦, HULBERT L, 宮田佳樹, 天川裕史, 野崎義行
日本地球化学会年会講演要旨集   1997 1-2   Sep 1997
田中剛, 富樫茂子, 天川裕史, 加賀美寛雄, 折橋裕二, 米田成一, 国丸貴紀, 高橋和也, 柳たかし
地球惑星科学関連学会合同大会予稿集   1997 455   Mar 1997
荒川洋二, 黒沢美映, 高橋かおり, 小林洋二, 津久井雅志, 天川裕史
地球惑星科学関連学会合同大会予稿集   1997 485   Mar 1997
宮田佳樹, 天川裕史, 野崎義行
日本地球化学会年会講演要旨集   1996 181   Aug 1996
田中剛, 富樫茂子, 上岡晃, 天川裕史, 加賀美寛雄, 浜本拓志, ゆ原雅樹, 折橋裕二, 米田成一
日本地球化学会年会講演要旨集   1996 50   Aug 1996
天川裕史, 野崎義行
日本地球化学会年会講演要旨集   1996 85   Aug 1996
井田雅也, 天川裕史, 野崎義行
日本地球化学会年会講演要旨集   1996 92   Aug 1996
鈴木勝彦, HULBERT L, 宮田佳樹, 天川裕史, 野崎義行
日本地球化学会年会講演要旨集   1996 180   Aug 1996
荒川洋二, 久野将義, 小林洋二, 天川裕史, 池田隆司
地球惑星科学関連学会合同大会予稿集   1996 494   Mar 1996
野崎義行, 張けい, 天川裕史
日本海洋学会大会講演要旨集   1996 175   1996
鈴木勝彦, HULBERT L, 宮田佳樹, 天川裕史, 野崎義行
日本岩石鉱物鉱床学会・日本鉱物学会・資源地質学会秋季連合学術講演会講演要旨集   1996 103   1996
天川裕史, 野崎義行, 増田彰正
日本地球化学会年会講演要旨集   1995 278   Nov 1995
井田雅也, 天川裕史, 野崎義行
日本地球化学会年会講演要旨集   1995 261   Nov 1995
野崎義行, 天川裕史, 張じん
月刊海洋   (Gogai 8) 30-36   Apr 1995
山谷良登, 益田晴恵, 天川裕史, 野崎義行, 蒲生俊敬
JAMSTEC深海研究   (10) 187-193   Nov 1994
山谷良登, 益田晴恵, 天川裕史, 野崎義行, 蒲生俊敬
地球惑星科学関連学会合同大会予稿集   1994 162   Mar 1994
天川裕史, 清水洋, 増田彰正
日本地球化学会年会講演要旨集   1992 284   Oct 1992
天川裕史, INGRI J, 増田彰正, 清水洋
日本地球化学会年会講演要旨集   1991 253   1991
李承求, 清水洋, 増田彰正, 天川裕史, ちょう振華, 楊瑞瑛, 宋用善, 足立守
日本鉱山地質学会・日本岩石鉱物鉱床学会・日本鉱物学会秋季連合学術講演会講演要旨集   1991 116   1991
LEE S G, 清水洋, 増田彰正, 天川裕史, AHAO Z H, YAN R Y, SONG Y S, 足立守
日本地球化学会年会講演要旨集   1991 138-139   1991
天川裕史, 清水洋, 増田彰正
日本地球化学会年会講演要旨集   1990 222   Oct 1990

Research Grants & Projects

 
Ministry of Education, Culture, Sports, Science and Technology: Grants-in-Aid for Scientific Research(基盤研究(A))
Project Year: 2007 - 2010    Investigator(s): Toshitaka GAMO
Ministry of Education, Culture, Sports, Science and Technology: Grants-in-Aid for Scientific Research(基盤研究(C))
Project Year: 2006 - 2007    Investigator(s): Hiroshi AMAKAWA
We tried to develop a method for determining boron isotopic composition of solution sample using secondary ion mass spectrometer (SIMS) and applied it to a standard sample, i. e., NIST 951 and such natural samples as seawater, hot spring waters an...
Ministry of Education, Culture, Sports, Science and Technology: Grants-in-Aid for Scientific Research(基盤研究(B))
Project Year: 2003 - 2005    Investigator(s): Mitsuru EBIHARA
Platinum group elements (hereafter, PGE) are cosmochemically grouped in to refractory elements. They are geochemically grouped into siderophile elements, being concentrated into core in earth-type planets with relative abundances similar to solar ...
Ministry of Education, Culture, Sports, Science and Technology: Grants-in-Aid for Scientific Research(基盤研究(C))
Project Year: 2003 - 2005    Investigator(s): Hiroshi AMAKAWA
My research results are summarized as follows.1. Development of high precision and sensitivity method for determining abundances of platinum group elements in solid samples.I have developed high precision and sensitivity method for determining abu...
Ministry of Education, Culture, Sports, Science and Technology: Grants-in-Aid for Scientific Research(基盤研究(A))
Project Year: 2001 - 2004    Investigator(s): 野崎義行, Hajime OBATA
In order to understand the biogeochemical cycles in the ocean, we investigated the distributions and behaviors of the novel trace metals in the ocean.Firstly, the global distribution of silver, one of the novel trace metals, was studied from the B...
Ministry of Education, Culture, Sports, Science and Technology: Grants-in-Aid for Scientific Research(一般研究(A), 基盤研究(A))
Project Year: 1995 - 1998    Investigator(s): Yoshiyuki NOZAKI
The purpose of this study is to understand geochemical processes in super-deep trench environment, such as the Japan and Izu-Ogasawara trenches.Trenches exhibit characteristic topographic features of V shaped valley exceeding 7000 m depth, and are...
Ministry of Education, Culture, Sports, Science and Technology: Grants-in-Aid for Scientific Research(試験研究(B), 基盤研究(A))
Project Year: 1995 - 1996    Investigator(s): Yoshiyuki NOZAKI
Actinium-227 is a nuclide belong to the ^<235>U decay chain. It's half life (21.7 years) is comparable within that of ^<210>Pb(t_<1/2>=22.7y). Although ^<210>Pb is widely used as a dating tool of lar, coastal and shelf sediments and a tracer of he...
Ministry of Education, Culture, Sports, Science and Technology: Grants-in-Aid for Scientific Research(国際学術研究)
Project Year: 1995 - 1996    Investigator(s): Yoshiyuki NOZAKI
The purpose of this study is to evaluate the influence of East Asian rivers in the biogeochemical cycling in the ocean. Originally, we intended to study the Yantze river estuary using a Chinese research vessel "Venus II" in colaboration with profe...