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Ko HASHIZUME

Observed names: HASHIZUME, Ko, Hashizume Ko, Hashizume, K., Hashizume, Ko, K. Hashizume, K., Hashizume, KO HASHIZUME, Ko Hashizume
Institution: Ibaraki University
Observed institutions: Centre National de la Recherche Scientifique, Tohoku University, Centre de Recherches Pétrographiques et Géochimiques, Ibaraki University, The University of Tokyo, The University of Osaka
ORCID: 0000-0002-8714-4845
Observed ORCID: 0000-0002-8714-4845
OpenAlex ID: A5037487680
Oxygen Isotopic Compositions of Asteroidal Materials Returned from Itokawa by the Hayabusa Mission
2011 · Hisayoshi Yurimoto, Ken-ichi Abe, et al. · Science · 188
Solar Wind Record on the Moon: Deciphering Presolar from Planetary Nitrogen
2000 · Ko Hashizume, Marc Chaussidon, et al. · Science · 178
Nitrogen and argon signatures in 3.8 to 2.8 Ga metasediments: clues on the chemical state of the archean ocean and the deep biosphere
2001 · Daniele L Pinti, Ko Hashizume, et al. · Geochimica et Cosmochimica Acta · 121
Biological activity and the Earth's surface evolution: Insights from carbon, sulfur, nitrogen and iron stable isotopes in the rock record
2009 · Christophe Thomazo, Daniele L. Pinti, et al. · Comptes Rendus Palevol · 115
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A non-terrestrial 16O-rich isotopic composition for the protosolar nebula
2005 · Ko Hashizume, Marc Chaussidon · Nature · 105
Noble gases and nitrogen in samples of asteroid Ryugu record its volatile sources and recent surface evolution
2022 · Ryuji Okazaki, Bernard Marty, et al. · Science · 85
Isotopic fractionation of nitrogen and carbon in Paleoarchean cherts from Pilbara craton, Western Australia: Origin of 15N-depleted nitrogen
2009 · Daniele L. Pinti, Ko Hashizume, et al. · Geochimica et Cosmochimica Acta · 67
Nitrogen isotopes in bulk ordinary chondrites
1995 · Ko Hashizume, Naoji Sugiura · Geochimica et Cosmochimica Acta · 64
Timescales for the evolution of oxygen isotope compositions in the solar nebula
2009 · J.R. Lyons, E.A. Bergin, et al. · Geochimica et Cosmochimica Acta · 62
Protosolar Carbon Isotopic Composition: Implications for the Origin of Meteoritic Organics
2004 · Ko Hashizume, Marc Chaussidon, et al. · The Astrophysical Journal · 58
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Analyses of nitrogen and argon in single lunar grains: towards a quantification of the asteroidal contribution to planetary surfaces
2002 · Ko Hashizume, Bernard Marty, et al. · Earth and Planetary Science Letters · 52
Nitrogen Isotopes on the Moon: Archives of the Solar and Planetary Contributions to the Inner Solar System
2003 · B. Marty, K. Hashizume, et al. · Space Science Reviews · 47
15N-depleted nitrogen in Early Archean kerogens: clues on ancient marine chemosynthetic-based ecosystems?
2001 · Daniele L Pinti, Ko Hashizume · Precambrian Research · 45
Microfacies and origin of some Archean cherts (Pilbara, Australia)
2006 · Beate Orberger, Virgile Rouchon, et al. · Geological Society of America eBooks · 42
Extreme oxygen isotope anomaly with a solar origin detected in meteoritic organics
2011 · Ko Hashizume, Naoto Takahata, et al. · Nature Geoscience · 37
Nitrogen components in primitive ordinary chondrites
1998 · NAOJI SUGIURA, KAORU KIYOTA, et al. · Meteoritics and Planetary Science · 36
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Multiple nitrogen isotopic components coexisting in ureilites
1998 · TOMOKO YAMAMOTO, KO HASHIZUME, et al. · Meteoritics and Planetary Science · 33
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First asteroid gas sample delivered by the Hayabusa2 mission: A treasure box from Ryugu
2022 · Ryuji Okazaki, Yayoi N. Miura, et al. · Science Advances · 30
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Biogeochemical cycles of sulfur and nitrogen in the Archean ocean and atmosphere
2006 · Yanan Shen, Daniele L. Pinti, et al. · Geophysical monograph · 28
Nitrogen Isotopic Analyses at the Sub-Picomole Level Using an Ultralow Blank Laser Extraction Technique
2004 · Ko Hashizume, Bernard Marty · Elsevier eBooks · 27
Nitrogen isotope anomalies in primitive ordinary chondrites
1992 · Naoji Sugiura, Ko Hashizume · Earth and Planetary Science Letters · 27
A biological switch at the ocean surface as a cause of laminations in a Precambrian iron formation
2016 · K. Hashizume, D.L. Pinti, et al. · Earth and Planetary Science Letters · 26
Biogenic nitrogen and carbon in Fe‐Mn‐oxyhydroxides from an Archean chert, Marble Bar, Western Australia
2007 · Daniele L. Pinti, Ko Hashizume, et al. · Geochemistry Geophysics Geosystems · 26
Precise measurement of nitrogen isotopic composition using a quadrupole mass spectrometer.
1990 · Ko Hashizume, Naoji Sugiura · Journal of the Mass Spectrometry Society of Japan · 23
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Early Life Record from Nitrogen Isotopes
2010 · Daniele L. Pinti, Ko Hashizume · Springer eBooks · 22
Works count: 169
Citation count: 1,818
H-index: 23
I10-index: 37
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