All abstracts by Hajime Obata in conference series: Goldschmidt

(2024) Tracing Atmospheric Iron Supplied to the Subarctic North Pacific by Stable Iron Isotope Ratios
Kurisu M, Kohei S, Nishioka J, Obata H, Conway TM, Hunt HR, Sieber M, Suzuki K, Kashiwabara T & Takahashi Y

(2023) Distribution of Dissolved Te Species in the Eastern Indian Ocean
Fukazawa T, Obata H & Norisuye K

(2023) The Sectional Distributions of Several Particulate Trace Elements in the Western South Pacific
Norisuye K, Hayashi Y, Obata H, Gamo T, Minami H & Nakaguchi Y

(2023) The Distribution and Origins of Pb Isotopes in the Northeast Indian Ocean
Rojubally Cadinouche SJA, Fukazawa T, Obata H, Okamura K, Nagaishi K, Ishikawa T & Norisuye K

(2020) Development of a Method for Determination of Dissolved Te Species in Open Ocean Water
Fukazawa T, Obata H & Norisuye K

(2020) Importance of Intermediate Water Formation for Suplying Iron and Macro-Nutrient in the North Pacific
Nishioka J, Obata H & Yasuda I

(2019) Physical and Chemical Speciation of Copper in the Subarctic North Pacific
Wong KH, Obata H, Kim T, Kondo Y & Nishioka J

(2019) Helium Isotopes Reveal Continuous and Intensive Degassing in Kagoshima Bay, Japan
Escobar MT, Takahata N, Shirai K, Kagoshima T, Tanaka K, Obata H & Sano Y

(2018) Precise and Accurate Analysis of Stable Sr Isotope Ratios by DS-Tims and its Application to Paleoenvironmental Studies
Wakaki S, Obata H, Tazoe H & Ishikawa T

(2018) Distribution of Helium Isotopes along 47°N of the Subarctic North Pacific
Escobar MT, Takahata N, Obata H & Sano Y

(2018) Distribution of Copper and its Speciation in the Subarctic North Pacific
Wong KH, Obata H, Kim T & Muhammad R

(2018) Distributions of Total Particulate Trace Elements in the Subarctic North Pacific
Maruyama K, Norisuye K, Obata H, Minami H, Nakaguchi Y, Tazoe H & Gamo T

(2018) Trace Metals and Zinc Complexing Ligands in Seawaters at a Shallow Hydrothermally Active Area in Japan
Kim T, Obata H, Mashio AS, Gamo T & Takeda S

(2018) Dissolved Pb Stable Isotopes in the Bay of Bengal
Norisuye K, Obata H, Gamo T, Lee J-M & Boyle EA

(2017) Latitudinal Variations of Neodimium Isotopic Composition in Seawater along 160th Meridian East in the Western North Pacific
Tazoe H, Obata H, Gamo T & Nishioka J

(2017) Iron Distribution and Supply along the Kuroshio Current in the North Pacific
Maki K, Nishioka J, Obata H, Kondo Y, Yasuda I & Saito H

(2017) Distributions and Biogeochemical Cycles of Platinum in Seawaters at Coastal Areas Around Japan
Mashio A, Obata H & Gamo T

(2017) Tracing the Subarctic North Pacific Intermediate Water by Using the Decoupling of Dissolved Zinc and Silicate
Kim T, Obata H, Ogawa H & Gamo T

(2017) Distributions of Nd Isotopic Composition and REE Concentrations in Surface Seawater in the North Pacific Ocean
Hara T, Tazoe H, Obata H & Gamo T

(2016) Dissolved Bismuth in the Subarctic North Pacific
Norisuye K, Takahashi K, Hasegawa S, Takano S, Konagaya W, Sohrin Y, Obata H & Gamo T

(2016) Transport of Trace Metals (Mn, Fe, Ni, Zn and Cd) in the Western Arctic Ocean in Late Summer 2012
Kondo Y, Obata H, Hioki N, Ooki A, Nishino S, Kikuchi T & Kuma K

(2016) Distribution and Speciation of Copper in Seawater of East China Sea and its Surrounding Areas
Wong KH, Kim T, Obata H & Gamo T

(2016) A Modelling Study on Global Distribution of Rare Earth Elements in the Ocean
Oka A & Obata H

(2016) Nanometer Size Fractionation of Metal Sulfides over the Hydrothermal Area in Okinawa Trough
Nakayama N, Gamo T & Obata H

(2016) Distributions and Geochemical Cycles of Platinum in Otsuchi Bay, Japan after the Tsunami in 2011
Mashio A, Obata H, Fukuda H & Ogawa H

(2016) Studying High-Latitude Silicon Cycling in the Sea Using Si Stable Isotopes
de Souza G, Maden C, Wetzel F, Carter B, Obata H & Vance D

(2015) Iodine Speciation and Iodine-129 Distribution in the Chukchi Sea and Bering Sea
Obata H, Miwa K, Kondo Y, Gamo T, Otosaka S & Suzuki T

(2015) Determination of Trace Orthophosphate in Water of Lake Biwa (Japan) by Ion Chromatography
Maruo M, Ishimaru M, Azumi Y, Ohyama K & Obata H

(2015) Vertical Distributions of Lead and Bismuth in the Japan Trench
Norisuye K, Hori E, Nakagawa M, Obata H, Kondo Y & Gamo T

(2015) Sulfides in Oxic Seawater over the Submarine Hydrothermal Area of Kikai Caldera South of Kyushu Island, Japan
Nakayama N, Shirai K, Sano Y, Gamo T & Obata H

(2015) Dissolved Zinc and its Speciation in the Northeastern Indian Ocean and Andaman Sea
Kim T, Obata H & Gamo T

(2014) The Nd Isotopic Composition of Seawater in the Southwest Pacific Ocean
Amakawa H, Tazoe H, Obata H, Gamo T, Sano Y & Shen C-C

(2013) Determination of Strontium-90 in Seawater Using TODGA Chelating Resin
Tazoe H, Yamagata T, Obata H & Yamada M

(2013) Determination of Picomolar Zn in Seawater of the North and South Pacific with Clean Sampling Methods
Kim T, Gamo T & Obata H

(2013) Distribution of Iron (II) in the Northwestern Pacific
Obata H, Takahashi S, Gamo T & Nishioka J

(2012) Vertical Distributions of ²³⁰Th in the Pacific Ocean and their Relation to Advection and Diffusion
Okubo A, Obata H, Gamo T & Yamada M

(2012) Distribution of Lead and Lead Isotopes in the Indian Ocean: Data from the Japanese Indian Ocean GEOTRACES Transect
Lee J-M, Echegoyen-Sanz Y, Boyle E, Gamo T, Obata H & Norisuye K

(2011) Sensitive, High-Resolution Measurement of Volatile Organic Compounds Dissolved in Seawater Using Proton Transfer Reaction-Mass Spectrometry
Tanimoto H, Kameyama S, Inomata S, Tsunogai U, Ooki A, Yokouchi Y, Takeda S, Obata H, Tsuda A & Uematsu M

(2011) Nd Isotopic Compositions in the Central Indian Ocean
Tazoe H, Obata H, Nagai H & Gamo T

(2011) Lead and Lead Isotopes in the Atlantic and Indian Ocean: GEOTRACES Data
Boyle E, Echegoyen-Sanz Y, Fornace K, Lee J-M, Gamo T, Obata H & Norisuye K

(2010) LC-ESI-MS Analysis of Folic Acid Degradation in Seawater
Hongo Y, Obata H, Nakamura T & Koshino H

(2010) Fe(II) Distribution in the Arabian Sea Oxygen Minimum Zone and Western Tropical Indian Ocean from GEOTRACES KH-09-5
Kondo Y, Moffett J, Obata H & Nishioka J

(2009) Fluid Geochemistry of the Suiyo Hydrothermal Field at the Izu-Bonin Arc Submarine Volcano
Ishibashi J-I, Akashi H, Yamanaka T, Toki T, Teranishi G, Obata H & Gamo T

(2009) Supersaturated Molecular Hydrogen in Coastal Surface Water at Otsuchi Bay, Japan
Kawagucci S, Narita T, Obata H, Fukuda H & Gamo T

(2008) Distributions of Th Isotopes in the North Pacific Ocean
Okubo A, Obata H, Gamo T & Zheng J

(2008) Surface Nd Isotopic Distribution in the South Pacific Ocean
Tazoe H, Sato H, Nagai H, Obata H & Gamo T

(2006) Vertical profiles of Cerium and Neodymium Isotopic compositions and REEs pattern in the Ross Sea
Tazoe H, Obata H & Gamo T

(2005) Cerium and Neodymium Isotopic Compositions in the Northwestern Pacific and its Adjacent Seas
Tazoe H, Obata H, Amakawa H & Gamo T

(2003) Surface Distribution of the Rare Earth Elements in the North Pacific and Bering Sea
Hongo Y, Obata H & Nozaki Y

(2003) Determination of Platinum in the Marine Environment with Two Different Methods
Obata H, Yoshida T & Nozaki Y

(2003) The Ce and Nd Isotope Ratios in the Surface Seawater
Tazoe H, Amakawa H, Obata H & Nozaki Y

(2003) Manganese in the Marginal Seas
Doi T, Obata H & Maruo M