Eizo Nakamura
Okayama University
MetamorphismAnalytical chemistryVolcanoGeologyBasaltIsotopeEclogiteGeochemistryChemistryVolcanic rockMineralogyMetamorphic rockSilicateZirconTrace elementIgneous rockSubductionPetrologyMantle (geology)Peridotite
256Publications
64H-index
7,432Citations
Publications 252
Newest
#1Dilan M. Ratnayake (Okayama University)
#2Ryoji Tanaka (Okayama University)H-Index: 14
Last. Eizo Nakamura (Okayama University)H-Index: 64
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Abstract null null Nickel isotope ratios have traditionally been used as an important tracer in cosmochemistry, and recently, it has gained attention in geochemistry, biochemistry, and environmental sciences with the development of MC-ICP-MS. Purification of Ni before isotope measurement is mandatory for obtaining precise data, which has been commonly achieved with ion-exchange chromatography, employing dimethylglyoxime (DMG) as a chelating agent for Ni. However, it has been pointed out that the...
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#1Hongda Hao (ANU: Australian National University)H-Index: 3
#2Ian H. Campbell (ANU: Australian National University)H-Index: 86
Last. Chie Sakaguchi (Okayama University)H-Index: 6
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1 CitationsSource
#1Tak Kunihiro (Okayama University)H-Index: 5
#2Tsutomu Ota (Okayama University)H-Index: 24
Last. Eizo Nakamura (Okayama University)H-Index: 64
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#1Hitoshi MiuraH-Index: 13
#2Eizo NakamuraH-Index: 64
Last. Tak KunihiroH-Index: 5
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#1Ryoji Tanaka (Okayama University)H-Index: 14
#2Christian Potiszil (Okayama University)H-Index: 2
Last. Eizo Nakamura (Okayama University)H-Index: 64
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Last. Zhong Liu
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#1Martin J. Van Kranendonk (UNSW: University of New South Wales)H-Index: 49
#2Raphael Baumgartner (UNSW: University of New South Wales)H-Index: 7
Last. Eizo Nakamura (Okayama University)H-Index: 64
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For decades, deep sea hydrothermal vents have been a preferred setting for the Origin of Life, but "The Water Problem" as relates to polymerization of organic molecules, together with a propensity to dilute critical prebiotic elements as well as a number of other crucial factors, suggests that a terrestrial hot spring field with the capacity for wet-dry cycling and element concentration may represent a more likely candidate. Here, we investigate a 3.5 billion-year-old, anoxic hot spring setting ...
8 CitationsSource
#1Yan-Qing Li (China University of Geosciences)
#2Hiroshi Kitagawa (Okayama University)H-Index: 9
Last. Chie Sakaguchi (Okayama University)H-Index: 6
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#1A. Yu. Bychkov (MSU: Moscow State University)H-Index: 9
#2I. Yu. Nikolaeva (MSU: Moscow State University)H-Index: 3
Last. Eizo Nakamura (Okayama University)H-Index: 64
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The first experimental data were obtained on the distribution of boron isotopes between gas and liquid at 100–350°С and the pressure of saturated water vapor, and the effect of pH on this distribution at 100°С was studied. The results showed that the value of δ11Bgas–δ11Bliquid was 5.9, 3.7, 1.1, 0.8, and –1.3 ‰ at 100, 200, 250, 300, and 350°С. In an alkaline solution, the boron distribution coefficient between gas and liquid decreases, and the isotopic shift increases; at 100°C and pH 9.1 it i...
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