Vancouber 7 (R/V Melville, SWIR) On board Scientist
YK01-14 (よこすか/ しんかい6500, 南西インド洋海嶺) 乗船研究者
研究業績
査読を受けた論文:
T Sato, K Okino and H Kumagai (2009)
Magnetic structure of an oceanic core complex at the southernmost Central Indian Ridge: Analysis of shipboard and deep-sea three-component magnetometer data, Geochem. Geophys. Geosyst., 10, Q06003, doi:10.1029/2008GC002267.
K Nakamura, T Morishita, W Bach, F. Klein, K. Hara, K Okino, K Takai and H Kumagai (2009)
Serpentinized troctolites exposed near the Kairei Hydrothermal Field, Central Indian Ridge: Insights into the origin of the Kairei hydrothermal fluid supporting a unique microbial ecosystem, Earth Planet. Sci. Lett., 280(1-4), 128-136.
H Kumagai, K Nakamura, T Toki, T Morishita, K Okino, J-i Ishibashi, U Tsunogai, S Kawagucci, T Gamo, T Shibuya, T Sawaguchi, N Neo, M Joshima, T Sato and K Takai (2008)
Geological background of the Kairei and Edmond hydrothermal fields along the Central Indian Ridge: Implications of their vent fluids' distinct chemistry, Geofluids, 8(4), 239-251.
Morishita, M., Maeda, J., Miyashita, S., Kumagai, H., Matsumoto, T. and Dick, H.J.B. (2007)
Petrology of local concentration of chromian spinel in dunite from the slow-spreading Southwest Indian Ridge, Eur. J. Mineral., 19(6), 871-882.
Geshi, N., Umino, S., Kumagai, H., Sinton, J. M., White, S. M., Kisimoto, K. and Hilde, T. W. (2007)
Discrete plumbing systems and heterogeneous magma sources of a 24 km3 off-axis lava field on the western flank of East Pacific Rise, 14[deg]S, Earth Planet. Sci. Lett., 258(1-2), 61-72.
Nakamura, K., Morishita, T., Chang, Q., Neo, N., and Kumagai, H. (2007)
Discovery of lanthanide tetrad effect in an oceanic plagiogranite from an Ocean Core Complex at the Central Indian Ridge 25[deg]S systems, Geochem. J., 41, 135-140.
Takai, K., Nakamura, K., Suzuki, K., Inagaki, F., Nealson, K. H. and Kumagai, H. (2006)
Ultramafics-Hydrothermalism-Hydrogenesis-HyperSLiME (UltraH3) linkage: a key insight into early microbial ecosystem in the Archean deep-sea hydrothermal systems, Paleontol. Res., 10(4), 269-282.
White, S. M., Umino S. and Kumagai, H. (2006)
Transition from Seamount Chain to Intra-plate Volcanic Ridge at the East Pacific Rise, Geology, 34(4), 293–296.
Kumagai, H. and Kaneoka, I. (2005)
Noble gas signatures around the Rodriguez Triple Junction in the Indian Ocean - Constraints on magma genesis in a ridge system, Geochim. Cosmochim. Acta, 69, 5567-5583.
Sumino, H., Yamamoto, J. and Kumagai, H. (2005)
Noble gas studies of mantle-derived xenoliths: mantle metasomatism revealed by noble gas isotopes - a review (in Japanese with English abstr.), Japanese Magazine of Mineralogical and Petrological Sciences, 34, 173-185.
Kumagai,H. Dick,H.J.B. and Kaneoka,I.(2003)
Noble gas signatures of abyssal gabbros and peridotites at an Indian Ocean core complex, Geochem. Geophys. Geosyst., 4, paper # 9107, doi:10.1029/2003GC000540.
Kumagai,H. and Kaneoka,I.(2003)
Relationship between submarine MORB glass textures and atmospheric component of MORBs, Chem. Geol., 200, 1-24.
Kumagai,H. and Kaneoka,I.(1998)
Variations of noble gas abundances and isotope ratios in a single MORB pillow,
Geophys. Res. Lett., 25, 3891-3894.
兼岡一郎・羽生毅・熊谷英憲(1997)
希ガス同位体比とマグマ源の特性＊現状と課題，火山「マグマ特集号《, 42, S313-S319 (with English abstract).
Kumagai,H., Kaneoka,I. and Ishii,T.(1996)
The active period of the Ayu Trough estimated from K-Ar ages:
the southeastern spreading center of Philippine Sea Plate,
Geochem. J., 30, 81-87.
Tsuchida,S., Kumagai,H., Ishibashi,J., Watanabe,H. and Kouzuma,F. (2001)
Preliminary report of hydrothermalism and volcanism at the Kaikata Seamount,
JAMSTEC journal of Deep Sea Research, 18, 209 - 215 (in Japanese with English abstract).
Kumagai,H. and Kaneoka,I.(1996)
On the contamination effect to magmatic noble gases at magma solidification,
Abstracts, Todai Internatl.Symp.Geochronol.Cosmochrnol.Isotope Geosci., 123-125.
招待講演：
Kumagai, H.(2008)
Multi-beam echo sounding on AUV platform helps seafloor volcanology: An application at an active hydrothermal field, Iheya-north Knoll, Okinawa Trough, GEBCO Science day 2008, May 2008, Tokyo, Japan.
Kumagai, H. Okino, K. et al. (2006)
A field-work approach to investigate UltraH3-linkage hypothesis at two distinct hydrothermal fields, Indian Ocean,
2006 Western Pacific Geophysics Meeting, July 2006, Beijing, China.
経歴
2007/ 4 -
独立行政法人海洋研究開発機構 地球内部変動研究センター 技術研究主任
2004/ 4 - 2007/ 3
独立行政法人海洋研究開発機構 地球内部変動研究センター 研究員
ただし、2004/ 4 - 2004/ 6は 同機構 深海研究部 研究員
2000/ 4 - 2004/ 3
海洋科学技術センター深海研究部 研究員
2002/10 - 2003/10
在外研究員 於 ウッズ・ホール海洋研究所(米国マサチューセッツ州)
1999/ 4 - 2000/ 3
東京大学地震研究所研究生／立正大学地球環境科学部臨時雇員
桜蔭学園非常勤講師(地学)
1999/ 3
博士(理学)取得
博士論文
"Variation of noble gas signatures controlled by tectonic conditions and magmatic processes: a case study for an area around the Rodriguez Triple Junction in the Indian Ocean"