Ueno Y, Zang X, Asakura Y, Fong A, Kawade W, Isoda K, Yokoyama T, Kitadai N (2026) Atmospheric UV synthesis of aldehydes and oxidant from CO2, CO and H2O initiating the first ancestral metabolism. Progress in Earth and Planetary Science under review

Koya T, Ishida A, Ueno Y, Araoka D, Takayanagi H, Kurihara A, Watanabe Y, Y. I, Kakegawa T (2026) New insights into formation of sediement-hosted volcanogenic massive sulfide deposits by quadruple sulfur and multiple strontium isotopes. Geochimica et Cosmochimica Acta under review

125. Yang Z, Li Y, Kitadai N, Yamamoto M, Lu Y, Li A, Adachi K, Yamaguchi A, Hashizume D, Nakamura R (2026) Mineral-facilitated aqueous synthesis of hydrogen cyanide from prebiotically abundant amino acids for chemical evolution. Proceedings of the National Academy of Sciences of the United States of America in press

124. Taguchi K, Kawagucci S, Gilbert A, Ueno Y, Matsui Y, Takano Y, Tasumi E, Miyazaki M, Makabe A, Miyazaki J, Sawada H, Takahata N, Takai K (2026) Reassessing the Origin of Organic Compounds in Mariana Forearc Serpentinite Mud Volcanoes: Insights from Isotopologue and Molecular Signatures. Progress in Earth and Planetary Science 13: 258-267. 10.1186/s40645-026-00806-x

123. Goto KT, Sekine Y, Nakamura U, Suzuki K, Senda R, Yamada N, Ueno Y, Tachibana S, Yoshida N, Harada M, Tada R, Goto K, Yamamoto S, Maruoka T, Ogawa NO, Ohkouchi N, Harigane Y, Kon Y, Shimoda G, Poulton SW, Tajika E (2025) Incomplete oxidative sulfide weathering and low atmospheric oxygen levels during the Great Oxidation Event. Communications Earth & Environment 6: 906. 10.1038/s43247-025-02841-w

121. Taguchi K, Ueno Y, Gilbert A, Matsui Y, Shibuya T, Kawagucci S (2025) Clumped 13C-13C isotopologue signature of thermogenic ethane. Geochimica et Cosmochimica Acta 394: 258-267. 10.1016/j.gca.2025.02.017

120. Taguchi K, Ueno Y, Gilbert A, Li X, Horita J (2025) Clumped 13C-13C isotopes of ethane from laboratory pyrolysis of kerogen: Implications for intramolecular 13C distributions. Organic Geochemistry 204: 104951. 10.1016/j.orggeochem.2025.104951

119. Wu K, Ueno Y, Surma J, Nakajo C (2025) Separate Determination of Strontium and Barium Mass Fractions in Calcite and Dolomite in Carbonate Rocks by a Multi-step Sequential Leaching Procedure. Geostandards and Geoanalytical Research 49: 751-769. 10.1111/ggr.70002

118. Woo DK, Kim B, Ueno Y, McGlynn SE, Sim MS (2025) Molecular insights into the dynamic relationship between respiration rate and sulfur isotope effect. Geomicrobiology 91: e01064-01025. 10.1128/aem.01064-25

117. Li-Hau F, Nakagawa M, Kakegawa T, Ward L, Ueno Y, McGlynn S (2025) Metabolic potential and microbial diversity of Precambrian ocean analogue iron-rich hot springs of Japan. Microbes and Environments 40: ME24067. 10.1264/jsme2.ME24067

116. Zhang N, Prokhorov I, Kueter N, Li G, Tuzson B, Magyar P, Ebert V, Sivan M, Nakagawa M, Gilbert A, Ueno Y, Yoshida N, Röckmann T, Bernasconi S, Emmenegger L, Mohn J (2025) Rapid high-sensitivity analysis of methane clumped isotopes (∆13CH3D and ∆12CH2D2) using mid-infrared laser spectroscopy. Analytical Chemistry 97: 1291-1299. 10.1021/acs.analchem.4c05406

115 Li Y, Danielache SO, Nanbu S, Ueno Y (2025) CS2 absorption cross-sections measurement in 280-360 nm region using least absolute deviation method. Journal of Quantitative Spectroscopy & Radiative Transfer 345: 109569. 10.1016/j.jqsrt.2025.109569

114. Chen C, Yi R, Igisu M, Afrin R, Sithamparam M, Chandru K, Ueno Y, Sun L, Fraccia TP, Wang A, Cleaves HJ, Jia TZ (2025) Primitive homochiral polyester formation driven by tartaric acid and calcium availability. Proceedings of the National Academy of Sciences of the United States of America 122: e2419554122. 10.1073/pnas.2419554122

113. Ueno Y, Schmidt JA, Johnson MS, Zang X, Gilbert A, Kurokawa H, Usui T, Aoki S (2024) Synthesis of 13C-depleted organic matter from CO in a reducing early Martian atmosphere. Nature Geoscience 17: 503-507. 10.1038/s41561-024-01443-z

112. Koyama S, Yoshida T, Furukawa Y, Terada N, Ueno Y (2024) Stable carbon isotope evolution of formaldehyde on early Mars. Scientific Reports 14: 21214. 10.1038/s41598-024-71301-w

111. Paiste K, Fike DA, Mayika K, Moussavou M, Lepland A, Prave AR, Sawaki Y, Sato T, Ueno Y, Richardson JA, Wood RS, Jones C, Webb SM, Kirsimäe K (2024) Sulfur isotopes from the Paleoproterozoic Francevillian Basin record multigenerational pyrite formation, not depositional conditions. Communications Earth & Environment 5: 328. 10.1038/s43247-024-01498-1

110. Matsu’ura F, Sawaki Y, Komiya T, Han J, Maruyama S, Ushikubo T, Shimizu K, Ueno Y (2024) Oceanic and sedimentary microbial sulfur cyclling controlled by local organic matter flux during the Ediacaran Shuram excursion in the Three Gorges Area, South China. Geobiology 22: :e12617. 10.1111/gbi.12617

109. Li Y, Danielache SO, Endo Y, Nanbu S, Ueno Y (2024) High-Resolution UV Absorption Cross-section Measurements of 32S, 33S, 34S, and 36S Sulfur Dioxide for the B ̃1B1-X ̃1A1 Absorption Band. ACS Earth and Space Chemistry 8: 2038-2051. 10.1021/acsearthspacechem.4c00147

108. Yoshida T., Aoki S., Ueno Y., Terada N., Nakamura Y., Shiobara K., Yoshida N., Nakagawa H., Sakai S., Koyama S. (2023) Strong Depletion of 13C in CO Induced by Photolysis of CO2 in the Martian Atmosphere, Calculated by a Photochemical Model. The Planetary Science Journal 4. doi:10.3847/PSJ/acc030

107. Saitoh M., Nishizawa M., Ozaki K., Ikeda M., Ueno Y., Takai K., Isozaki Y. (2023) Nitrogen Isotope Record From a Mid-oceanic Paleo-Atoll Limestone to Constrain the Redox State of the Panthalassa Ocean in the Capitanian (Late Guadalupian, Permian). Paleoceanography and Paleoclimatology 38. doi:10.1029/2022pa004573

106. Matsu'ura F., Makita H., Takai K., Nakagawa M., Ueno Y. (2023) Large sulfur isotope fractionation during abiotic consumption of hydrogen sulfide after cessation of bacterial growth in batch culture experiments of sulfate reducing bacteria. Earth and Planetary Science Letters 624. doi:10.1016/j.epsl.2023.118446 pdf

105. Li Y., Kurokawa H., Sekine Y., Kebukawa Y., Nakano Y., Kitadai N., Zhang N., Zang X., Ueno Y., Fujimori G., Nakamura R., Fujishima K., Isa J. (2023) Aqueous breakdown of aspartate and glutamate to n-omega-amino acids on the parent bodies of carbonaceous chondrites and asteroid Ryugu. Science Advances 9: eadh7845. doi:10.1126/sciadv.adh7845

104. Kawagucci S., Sakai S., Tasumi E., Hirai M., Takaki Y., Nunoura T., Saitoh M., Ueno Y., Yoshida N., Shibuya T., Clifford Sample J., Okumura T., Takai K. (2023) Deep Subseafloor Biogeochemical Processes and Microbial Populations Potentially Associated with the 2011 Tohoku-oki Earthquake at the Japan Trench Accretionary Wedge (IODP Expedition 343). Microbes & Environments 38. doi:10.1264/jsme2.ME22108

103. Chen C., Yi R., Igisu M., Sakaguchi C., Afrin R., Potiszil C., Kunihiro T., Kobayashi K., Nakamura E., Ueno Y., Antunes A., Wang A., Chandru K., Hao J., Jia T. Z. (2023) Spectroscopic and Biophysical Methods to Determine Differential Salt-Uptake by Primitive Membraneless Polyester Microdroplets. Small Methods 7: e2300119. doi:10.1002/smtd.202300119 pdf

102. Aoki S., Shiobara K., Yoshida N., Trompet L., Yoshida T., Terada N., Nakagawa H., Liuzzi G., Vandaele A. C., Thomas I. R., Villanueva G. L., Lopez-Valverde M. A., Brines A., Patel M. R., Faggi S., Daerden F., Erwin J. T., Ristic B., Bellucci G., Lopez-Moreno J. J., Kurokawa H., Ueno Y. (2023) Depletion of 13C in CO in the Atmosphere of Mars Suggested by ExoMars-TGO/NOMAD Observations. The Planetary Science Journal 4. doi:10.3847/PSJ/acd32f pdf

101. Zang X., Ueno Y., Kitadai N. (2022) Photochemical Synthesis of Ammonia and Amino Acids from Nitrous Oxide. Astrobiology 22: 387-398. 10.1089/ast.2021.0064

100. Taguchi K., Gilbert A., Sherwood Lollar B., Giunta T., Boreham C. J., Liu Q., Horita J., Ueno Y. (2022) Low 13C-13C abundances in abiotic ethane. Nature Communications 13: 5790. 10.1038/s41467-022-33538-9

99. Kubota Y., Matsu'ura F., Shimizu K., Ishikawa A., Ueno Y. (2022) Sulfur in Archean komatiite implies early subduction of oceanic lithosphere. Earth and Planetary Science Letters 598. 10.1016/j.epsl.2022.117826

98. Igisu M., Ueno Y., Komiya T., Awramik S. M., Ikemoto Y., Takai K. (2022) Spatial distribution of organic functional groups in Ediacaran acritarchs from the Doushantuo Formation in South China as revealed by micro-FTIR spectroscopy. Precambrian Research 373. doi:10.1016/j.precamres.2022.106628

97. Igisu M., Takahashi Y., Uematsu K., Takeichi Y., Ueno Y., Takai K. (2022) STXM-XANES analyses of carbonaceous matter in seafloor hydrothermal deposits from the ~3.5 Ga Dresser Formation in the North Pole area, Western Australia. Geochemical Journal 56: 129-133. doi:10.2343/geochemj.GJ22010

96. Endo Y., Sekine Y., Ueno Y. (2022) Sulfur mass-independent fractionation during SO2 photolysis in low-temperature/pressure atmospheres. Chemical Geology 609. 10.1016/j.chemgeo.2022.121064

95. Endo Y., O. Danielache S., Ogawa M., Ueno Y. (2022) Absorption spectra measurements at ~1 cm-1 spectral resolution of 32S, 33S, 34S, and 36S sulfur dioxide for the 206-220 nm region and applications to modeling of the isotopic self-shielding. Geochemical Journal 56: 40-56. 10.2343/geochemj.GJ22004

94. Caruso S., Fiorentini M. L., Champion D. C., Lu Y., Ueno Y., Smithies R. H. (2022) Sulfur isotope systematics of granitoids from the Yilgarn Craton sheds new light on the fluid reservoirs of Neoarchean orogenic gold deposits. Geochimica et Cosmochimica Acta 326: 199-213. 10.1016/j.gca.2022.03.023

93. Matsu'ura F, Nakada R, Usui T, Sawaki Y, Ueno Y, Kajitani I, Saitoh M (2021) Spatial distribution and speciation of sulfur in Ediacaran Limestones with micro-XRF imaging and XANES spectroscopy: Imprications for diagenetic mobilization of sulfur speies. Geochimica et Cosmochimica Acta 306: 20-43.

92. Hammerli J, Greber ND, Martin L, Bouvier A, Kemp AIS, Fiorentini ML, Spangenberg JE, Ueno Y, Schaltegger U (2021) Tracing sulfur sources in the crust via SIMS measurement of sulfur isotopes in apatite. Chemical Geology 579: 120242. doi.org/10.1016/j.chemgeo.2021.120242.

91. Taguchi K, Gilbert A, Ueno Y (2021) Standardization for 13C-13C clumped isotope analysis by fluorination method. Rapid Communications in Mass Spectrometry 35: e9109, https://doi.org/9110.1002/rcm.9109.

90. Saitoh M, Ueno Y, Isozaki Y, Yoshida N (2021) Multiple sulfur isotope chemostratigraphy across the Permian-Triassic boundary at Chaotian, China: Implications for a shoaling model of toxic deep-waters. Island Arc 30: e12398.

89. Warke MR, Di Rocco T, Zerkle AL, Lepland A, Prave AR, Martin AP, Ueno Y, Condon DJ, Claire MW (2020) The Great Oxidation Event preceded a Paleoproterozoic "snowball Earth". Proceedings of the National Academy of Sciences of U.S.A. 117: 13314-13320.

88. Taguchi K, Yamamoto T, Nakagawa M, Gilbert A, Ueno Y (2020) A Fluorination Method for Measuring 13C-13C Isotopologue of C2 Molecules. Rapid Communications in Mass Spectrometry 34: e8761.

87. Stueken EE, Som SM, Spross L, Tosi N, Rugheimer S, Scherf M, Ueno Y, Claire M, Lammer H (2020) Mission to planet Earth: the first two billion years. Space Science Reviews 216:31.

86. Lammer H, Scherf M, Kurokawa H, Ueno Y, Burger C, Maindl T, Johnstone CP, Leizinger M, Benedikt M, Fossati L, Kislyakova KG, Marty B, Avice G, Fegley B, Odert P (2020) Loss and fractionation of noble gas isotopes and moderately volatile elements from planetary embryos and early Venus, Earth and Mars. Space Science Reviews 216:74.

85. Saitoh M, Nabhan S, Thomazo C, Olivier N, Moyen J, Ueno Y, Marin-Carbonne J (2020) Multiple sulfur isotope records of the 3.22 Ga Moodies Group, Barberton Greenstone Belt. Geosciences 10: doi.org/10.3390/geosciences10040145.

84. McGlynn SE, Blass JB, Johnson-Finn K, Klein F, Sanden SA, Schrenk MO, Ueno Y, Vitale-Brovarone A (2020) Hydrogenation Reactions of Carbon on Earth: Linking Methane, Margarine, and Life. American Mineralogist 105: 599-608.

83. Shimizu K, Ushikubo T, Murai T, Matsu'ura F, Ueno Y (2019) In situ analyses of hydrogen and sulfur isotope ratios in basaltic glass using SIMS. Geochemical Journal 53: 195-207.

82. Ward LM, Idei A, Nakagawa M, Ueno Y, Fischer WW, McGlynn SE (2019) Geochemical and Metagenomic Characterization of Jinata Onsen, a Proterozoic-Analog Hot Spring, Reveals Novel Microbial Diversity including Iron-Tolerant Phototrophs and Thermophilic Lithotrophs. Microbes and Environments 34: 278-292.

81. Seki K, Ohba T, Aoyama S, Ueno Y, Sumino H, Kanda W, Yaguchi M, Tanbo T (2019) Variations in thermal state revealed by the geochemisry of fumarolic gases and hot-spring waters of the Tateyama volcanic hydrothermal system, Japan. Bulletin of Volcanology 81:8 doi.org/10.1007/s00445-00018-01264-00447

80. Gilbert A, Sherwood Lollar B, Musat F, Giunta T, Chen S, Kajimoto Y, Yamada K, Yoshida N, Ueno Y (2019) Intramolecular isotopic evidence for bacterial oxidation of propane in subsurface natural gas reservoirs. Proceedings of the National Academy of Sciences of the United States of America 116: 6653-6658.

79. Endo Y, Danielache SO, Ueno Y (2019) Total pressure dependence of sulfur mass-independent fractionation by SO2 photolysis. Geophysical Research Letters 46: doi.org/10.1029/2018GL080730.

78. Kitadai N, Nakamura R, Yamonoto M, Takai K, Li Y, Yamaguchi A, Gilbert A, Ueno Y, Yoshida N, Oono Y (2018) Geo-electrochemical CO production: Implications for the autotrophic origin of life. Science Advances 4: eaao7265.

77. Igisu M, Yokoyama T, Ueno Y, Nakashima S, Shimojima M, Ohta H, Maruyama S (2018) Changes of aliphatic C-H bonds in cyanobacteria during experimental thermal maturation in the presence or absence of silica as evaluated by FTIR microspectroscopy. Geobiology 16: 412-428.

76. Aoyama S, Nishizawa M, Miyazaki J, Shibuya T, Ueno Y, Takai K (2018) Recycled Archean sulfur in the mantle wedge of the Mariana Forearc and microbial sulfate reduction within an extremely alkaline serpentine seamount. Earth and Planetary Science Letters 491: 109-120.

75. Aoyama S, Ueno Y (2017) Multiple sulfur isotope constraints on microbial sulfate reduction below Archean seafloor hydrothermal system. Geobiology 2017;00: 1-14.

74. Genda H, Iizuka T, Sasaki T, Ueno Y, Ikoma M (2017) Ejection of iron-bearing giant-impact fragments and the dynamical and geochemical influence of the fragment re-accretion Earth and Planetary Science Letters 470: 87-95.

73. Suda K, Gilbert A, Yamada K, Yoshida N, Ueno Y (2017) Compound- and position-specific carbon isotopic signatures of abiogenic hydrocarbons from on-land serpentinite-hosted Hakuba Happo hot spring in Japan. Geochimica et Cosmochimica Acta 206: 201-215.link

72. Saitoh M, Ueno Y, Matsu'ura F, Kawamura T, Isozaki Y, Yao J, Ji Z, Yoshida N (2017) Multiple sulfur isotope records at the end-Guadalupian (Permian) at Chaotian, China: Implications for a role of bioturbation in the sedimentary sulfur cycle in the Phanerozoic. Journal of Asian Earth Sciences 135: 70-79.

71. Mishima K, Yamazaki R, Satish-Kumar M, Ueno Y, Hokada T, Toyoshima T (2017) Multiple sulfur isotope geochemistry of Dharwar Supergroup, Southern India: late Archean record of changing atmosphere.Earth and Planetary Science Letters 464: 69-83. link

70. Endo Y, Ueno Y, Aoyama S, Danielache SO (2016) Sulfur isotope fractionation by broadband UV radiation to optically thin SO2 under reducing atmosphere. Earth and Planetary Science Letters 453: 9-22.link

69. Toki T, Itoh M, Iwata D, Ohshima S, Shinjo R, Ishibashi J, Tsunogai U, Takahata N, Sano Y, Yamanaka T, Ijiri A, Okabe N, Gamo T, Muramatsu Y, Ueno Y, Kawagucci S, Takai K (2016) Geochemical characteristics of hydrothermal fluids at Hatoma Knoll in the southern Okinawa Trough.Geochemical Journal 50: 493-525.

68. Matsu'ura F, Sunamura M, Ueno Y, Urabe T (2016) Influence of cell's growth phase on the sulfur isotopic fractionation during in vitro microbial sulfate reduction. Chemical Geology 431: 1-9.

67. Ghosh P, Vasiliev M, Ghosh P, Sarkar S, Ghosh S, Yamada K, Ueno Y, Yoshida N, Poulsen C (2016) Tracking migration of Indian continent using clumped isotope technique in Phanerozoic soil carbonates. Scientific Reports 6: 22187, doi:22110.21038/srep22187.

66. Gilbert, A, Yamada, K, Suda, K, Ueno Y, Yoshida N (2016) Measurement of position-specific 13C isotopic composition of propane at the nanomole level. Geochimica et Cosmochimica Acta 177: 205-216.

65. Saitoh M, Ueno Y, Isozaki Y, Yao J, Ji Z, Yoshida N (2016) Authigenic carbonate precipitation at the end-Guadalupian (Middle Permian) in China: Implications for the carbon cycle in ancient anoxic oceans. Progress in Earth and Planetary Science 2: 41, DOI 10.1186/s40645-40015-40073-40642.

64. Ueno Y, Aoyama S, Endo Y, Matsu'ura F, Foriel J (2015) Rapid quadruple sulfur isotope analysis at the sub-micromole level by a flash heating with CoF3. Chemical Geology 419: 29-35. link

63. Ueno, Y., Danielache, S., and Yoshida, N. (2015) Decoding redox evolution before oxygenic photosynthesis based on the Sulfur-Mass Independent Fractionation (S-MIF) record. Origins of Life and Evolution of the Biosphere 45: 371-374.

62. Endo Y, Danielache S, Ueno Y, Hattori S, Johnson MS, Yoshida N, Kjaergaard HG (2015) Photoabsorption cross-section measurements of 32S, 33S, 34S and 36S sulfur dioxide from 190 to 220 nm. Journal of Geophysical Research, Atmosphere 120: doi:10.1002/2014JD021671.

61. Shimizu, K., Suzuki, K., Saitoh, M., Konno, U., Kawagucci, S., and Ueno, Y. (2015) Simultaneous determinations of fluorine, chlorine, and sulfur in rock samples by ion chromatography combined with pyrohydrolysis. Geochemical Journal 49: 113-124.

60. Tahata M, Sawaki Y, Ueno Y, Nishizawa M, Yoshida N, Ebisuzaki T, Komiya T, Maruyama S (2015), Three-step modernization of the ocean: Modeling of carbon cycles and the revolution of ecological systems in the Ediacaran/Cambrian periods. Geoscience Frontiers 6: 121-136.

59. Hattori S, Toyoda A, Toyoda S, Ishino S, Ueno Y, Yoshida N (2015), Determination of the sulfur isotope ratio in carbonyl sulfide using gas chromatography / isotope ratio mass spectrometry on fragment ions 32S+, 33S+ and 34S+. Analytical Chemistry 87: 477-484.

58. Ueno, Y (2014) Coping with low ocean sulfate. Science 346: 703-704. link, pdf

57. Kawagucci, S., Kobayashi, M., Hattori, S., Yamada, K., Ueno, Y., Takai, K., and Yoshida, N. (2014) Hydrogen isotope systematics among H2-H2O-CH4 during the growth of the hydrogenotrophic methanogen Methanothermobacter thermoautotrophicus strain delta-H. Geochimica et Cosmochimica Acta 142: 601-614.

56. Saitoh, M, Ueno, Y, Isozaki, Y, Nishizawa, M, Shozugawa, K, Kawamura, T, Yao, J. Ji, Z, Takai, K, Yoshida, N, and Matsuo, M (2014) Isotopic evidence for water-column denitrification and sulfate reduction at the end-Guadalupian (Middle Permian). Global and Planetary Change 123: 110-120.

55. Suda K, Ueno Y, Yoshiazaki M, Nakamura H, Kurokawa K, Nishiyama E, Yoshino K, Hongoh Y, Kawachi K, Omori S, Yamada K, Yoshida N, Maruyama S (2014) Reply to comment on "Origin of methane in serpentinite-hosted hydrothermal systems: The CH4–H2–H2O hydrogen isotope systematics of the Hakuba Happo hot spring" by Suda et al. [Earth Planet. Sci. Lett. 386 (2014) 112–125]. Earth and Planetary Science Letters 401: 376-377.

54. Aoyama, S., Nishizawa, M., Takai, K., and Ueno, Y. (2014) Microbial sulfate reduction within the Iheya North subseafloor hydrothermal system constrained by quadruple sulfur isotopes. Earth and Planetary Science Letters 398: 113-126

53. Nomura R, Hirose K, Uesugi K, Ohishi Y, Tsuchiyama A, Miyake A, Ueno Y (2014) Low core-mantle boundary temperature inferred from the solidus of pyrolite. Science 343: 522-525

52. Yamada K, Ueno Y, Yamada K, Komiya T, Han J, Shu D, Yoshida N, Maruyama S (2014) Molecular fossils extracted from the Early Cambrian section in the Three Gorges area, South China. Gondwana Research 25: 1108-1119

51. Kikumoto R, Tahata M, Nishizawa M, Sawaki Y, Maruyama S, Shu D, Han J, Komiya T, Takai K, Ueno Y (2014) Nitrogen isotope chemostratigraphy of the Ediacaran to Early Cambrian platform sequence in the Three Gorges, South China. Gondwana Research 25: 1057-1069

50. Ishikawa T, Ueno Y, Shu D, Li Y, Han J, Guo J, Yoshida N, Maruyama S, Komiya T (2014) The d13C excursions spanning the Cambrian explosion to the Canglangpuian mass extinction in the Three Gorges area, South China. Gondwana Research 25: 1045-1056

49. Igisu M, Komiya T, Kawashima M, Nakashima S, Ueno Y, Han J, Shu D, Li Y, Guo JF, Maruyama S, Takai K (2014) FTIR microspectroscopy of Ediacaran phosphatized microfossils from the Doushantuo Formation, Weng'an, South China. Gondwana Research 25: 1120-1138

48. Saitoh, M., Ueno, Y., Nishizawa, M., Isozaki, Y., Takai, K., Yao, J., and Ji, Z. (2014) Nitrogen isotope chemostratigraphy across the Permian-Triassic boundary at Chaotian, Sichuan, South China. Journal of Asian Earth Sciences 93: 113-128.

47. Suda K, Ueno Y, Yoshiazaki M, Nakamura H, Kurokawa K, Nishiyama E, Yoshino K, Hongoh Y, Kawachi K, Omori S, Yamada K, Yoshida N, Maruyama S (2014) Origin of methane in serpentinite-hosted hydrothermal systems: The CH4–H2–H2O hydrogen isotope systematics of the Hakuba Happo hot spring. Earth and Planetary Science Letters 386: 112-125

46. Tahata M, Ueno Y, Ishikawa T, Sawaki Y, Murakami K, Han J, Shu DG, Li Y, Guo JF, Yoshida N, Komiya T (2013) Carbon and oxygen isotope chemostratigraphies of the Yangtze platform, South China: Decoding temperature and environmental changes through the Ediacaran. Gondwana Research 23: 333-353

45. Shibuya T, Tahata M, Ueno Y, Komiya T, Takai K, Yoshida N, Maruyama S, Russell MJ (2013) Decrease of seawater CO2 concentration in the Late Archean: An implication from 2.6 Ga seafloor hydrothermal alteration. Precambrian Research 236: 59-64

44. Saito M, Isozaki Y, Yao J, Ji Z, Ueno Y, Yoshida N (2013) The appearance of an oxygen-depleted condition on the Capitanian disphotic slope/basin in South China: Middle-Upper Permian stratigraphy at Chaotian in northern Sichuan. Global and Planetary Change 105: 180-192

43. Saito M, Isozaki Y, Ueno Y, Yoshida N, Yao J, Ji Z (2013) Middle-Upper Permian carbon isotope stratigraphy at Chaotian, South China: Pre-extinction multiple upwelling of oxygen-depleted water onto continental shelf. Journal of Asian Earth Sciences 67-68: 51-62

42. Nakagawa M, Ueno Y, Yokoyama A, Yagi A, and Yoshida N (2013) The origin of sulfur in the lake Fukami-ike, Japan. Rikunomizu (Limnology in Tokai Region of Japan) 59: 15-19

41. Rumble III D, Bowring S, Iizuka T, Komiya T, Lepland A, Rosing MT, Ueno Y (2013) The oxygen isotope composition of Earth's oldest rocks and evidence of a terrestrial magma ocean. Geochemistry Geophysics Geosystems 14: 1929-1939

40. Kawagucci S, Ueno Y, Takai K, Toki T, Ito M, Inoue K, Makabe A, Yoshida N, Muramatsu Y, Takahata N, Sano Y, Narita T, Teranishi G, Obata H, Nakagawa S, Nunoura T, Gamo T (2013) Geochemical origin of hydrothermal fluid methane in sediment-associated fields and its relevance to the geographical distribution of whole hydrothermal circulation. Chemical Geology 339: 213-225

39. Ishikawa T, Ueno Y, Shu DG, Li Y, Han J, Guo JF, Yoshida N, Komiya T (2013) Irreversible change of the oceanic carbon cycle in the earliest Cambrian: High-resolution organic and inorganic carbon chemostratigraphy in the Three Gorges area, South China. Precambrian Research 225: 190-208

38. Hokada T, Horie K, Satish-Kumar M, Ueno Y, Nasheeth A, Mishima K, Shiraishi K (2013) An appraisal of Archaean supracrustal sequences in Chitradurga Schist Belt, Western Dharwar Craton, Southern India. Precambrian Research 227: 99-119

37. Hattori S, Schmidt JA, Johnson MS, Danielache SO, Yamada A, Ueno Y, Yoshida N (2013) SO2 photoexcitation mechanism links mass-independent sulfur isotopic fractionation in cryospheric sulfate to climate impacting volcanism. Proceedings of the National Academy of Sciences of USA 110: 17656-17661

36. Yoshiya K, Nishizawa M, Sawaki Y, Ueno Y, Komiya T, Yamada K, Yoshida N, Hirata T, Wada H, Maruyama S (2012) In situ iron isotope analysis of pyrite and organic carbon isotope ratios in the Fortescue Group: Metabolic variations of a Late Archean ecosystem. Precambrian Research 212-213: 169-193

35. Yoshida-Takashima Y, Nunoura T, Kazama H, Noguchi T, Inoue K, Akashi H, Yamanaka T, Toki T, Yamamoto M, Furushima Y, Ueno Y, Yamamoto H, Takai K (2012) Spatial distribution of viruses associated with planktonic and attached microbial communities in hydrothermal environments. Applied and Environmental Microbiology 78: 1311-1320

34. Shibuya T, Tahata M, Kitajima K, Ueno Y, Komiya T, Yamamoto S, Igisu M, Terabayashi M, Sawaki Y, Takai K, Yoshida N, Maruyama S (2012) Depth variation of carbon and oxygen isotopes of calcites in an Archean altered upper oceanic crust: Implications for CO2 flux from ocean to oceanic crust in the Archean era. Earth and Planetary Science Letters 321-322: 64-73.

33. Nasheeth A, Okudaira T, Satish-Kumar M, Hokada T, Ueno Y (2012) Preliminary results on the Chitradurga Shear Zone, the Dharwar craton, South India. Journal of Geosciences, Osaka City University 55: 43-52

32. Nakagawa M, Ueno Y, Hattori S, Umemura M, Yagi A, Takai K, Koba K, Sasaki Y, Makabe A, Yoshida N (2012) Seasonal change in microbial sulfur cycling in monomictic Lake Fukami-ike, Japan. Limnology and Oceanography 57: 974-988

31. Igisu M, Takai K, Ueno Y, Nishizawa M, Nunoura T, Hirai M, Kaneko M, Naraoka H, Shimojima M, Hori K, Nakashima S, Ohta H, Maruyama S, Isozaki Y (2012) Domain-level identification and quantification of relative prokaryotic cell abundance in microbial communities by Micro-FTIER spectroscopy. Environmental Microbiology Reports 4: doi:10.1111/j.1758-2229.2011.00277.x

30. Enghoff MB, Bork N, Hattori S, Meusinger C, Nakagawa M, Pedersen JOP, Danielache S, Ueno Y, Johnson MS, Yoshida N, Svensmark H (2012) An isotopic analysis of ionizing radiation as a source of sulphuric acid. Atmospheric Chemistry and Physics 12: 5319-5327

29. Danielache SO, Yoshikawa C, Priyadarshi A, Takemura T, Ueno Y, Thiemens MH, Yoshida N (2012) An estimation of the radioactive S-35 emitted into the atmospheric from the Fukushima Daiichi Nuclear Power Plant by using a numerical simulation global transport. Geochemical Journal 46: 335-339

28. Danielache SO, Hattori S, Johnson MS, Ueno Y, Nanbu S, Yoshida N (2012) Photoabsorption cross-section measurements of S-32, S-33, S-34, and S-36 sulfur dioxide for the (BB1)-B-1-X(1)A(1) absorption band. Journal of Geophysical Research Atmosphere 117: doi: 10.1029/2012JD017464

27. Igisu, M, Ueno, Y, Nakashima, S, Awramik, SM, and Maruyama, S (2011) Micro-FTIR spectroscopic Imaging of ~1,900 Ma stromatolitic chert. In Stromatolites: Interaction of microbes with sediments, Tewari, V., and Seckbach, J. (eds), pp. 445-461. Netherlands, Springer.

26. Ueno Y (2011) When did life begin? It is older than 3.8 Ga: Evidence from Greenland. Journal of Geography 125: 877-885

25. Sasaki Y, Koba K, Yamamoto M, Makabe A, Ueno Y, Nakagawa M, Toyoda S, Yoshida N, Yoh M (2011) Biogeochemistry of nitrous oxide in Lake Kizaki, Japan, elucidated by nitrous oxide isotopomer analysis. Journal of Geophysical Research 116: G04030, doi:04010.01029/02010JG001589

24. Kawagucci S, Chiba H, Ishibashi J, Yamanaka T, Toki T, Muramatsu Y, Ueno Y, Makabe A, Inoue K, Yoshida N, Nakagawa S, Nunoura T, Takai K, Takahata N, Sano Y, Narita T, Teranishi G, Obata H, Gamo T (2011) Hydrothermal fluid geochemistry at the Iheya North field in the mid-Okinawa Trough: Implication for origin of methane in subseafloor fluid circulation systems. Geochemical Journal 45: 109-124. pdf

23. Hattori S, Danielache SO, Johnson MS, Schmidt JA, Kjaergaard HG, Toyoda S, Ueno Y, Yoshida N (2011) Ultraviolet absorption cross sections of carbonyl sulfide isotopologues OC(32)S, OC(33)S, OC(34)S and O(13)CS: isotopic fractionation in photolysis and atmospheric implications. Atmospheric Chemistry and Physics 11: 10293-10303. pdf

22. Nishizawa M, Yamamoto H, Ueno Y, Tsuruoka S, Shibuya T, Sawaki Y, Yamamoto S, Kon Y, Kitajima K, Komiya T, Maruyama S, Hirata T (2010) Grain-scale iron isotopic distribution of pyrite from Precambrian shallow marine carbonate revealed by a femtosecond laser ablation multicollector ICP-MS technique: possible proxy for the redox state of ancient seawater. Geochimica et Cosmochimica Acta 74: 2760-2778

21. Ueno Y, Johnson MS, Danielache SO, Eskebjerg C, Pandey A, Yoshida N (2009) Geological sulfur isotopes indicate elevated OCS in the Archean atmosphere, solving faint young sun paradox. Proceedings of the National Academy of Sciences of USA 106: 14784-147896. Nishizawa M, Takahata N, Terada K, Komiya T, Ueno Y, Sano Y (2005) Rare-Earth element, lead, carbon, and nitrogen isotope geochemistry of apatite-bearing metasediments from the ~3.8 Ga Isua Supracrustal Belt, West Greenland. International Geology Review 47: 952-970. pdf

20. Igisu M, Ueno Y, Shimojima M, Nakashima S, Awramik SM, Ohta H, Maruyama S (2009) Micro-FTIR spectroscopic signatures of Bacterial lipids in Proterozoic microfossils. Precambrian Research 173: 19-26

19. Ueno Y, Ono S, Rumble D, Maruyama S (2008) Quadruple sulfur isotope analysis of ca. 3.5 Ga Dresser Formation: new evidence for microbial sulfate reduction in the Early Archean. Geochimica et Cosmochimica Acta 72: 5675-5691Japanese summary

18. Takai K, Nunoura T, Ishibashi J, Lupton JE, Suzuki R, Hamasaki H, Ueno Y, Kawagucci S, Gamo T, Suzuki Y, Hirayama H, Horikoshi K (2008) Variability in the microbial communities and hydrothermal fluid chemistry at the newly-discovered Mariner hydrothermal field, southern Lau Basin. Journal of Geophysical Research 113: G02031, doi:02010.01029/02007JG000636

17. Ohno T, Komiya T, Ueno Y, Hirata T, Maruyama S (2008) Determination of 88Sr/86Sr mass-dependent isotopic fractionation and radiogenic isotope variation of 87Sr/86Sr in the Neoproterozoic Doushantuo Formation. Gondwana Research 14: 126-133

16. Ishikawa T, Ueno Y, Komiya T, Sawaki Y, Han J, Shu DG, Li Y, Maruyama S, Yoshida N (2008) Carbon isotope chemostratigraphy of a Precambrian/Cambrian boundary section in the Three Gorge area, South China: Prominent global-scale isotope excursions just before the Cambrian Explosion. Gondwana Research 14: 193-208

15. Danielache SO, Eskebjerg C, Johnson MS, Ueno Y, Yoshida N (2008) High-precision spectroscopy of 32S, 33S and 34S sulfur dioxide: ultraviolet absorption cross sections and isotope effects. Journal of Geophysical Research 113: D17314, doi:17310.11029/12007JD009695

14. Ueno Y (2007) Stable carbon and sulphur isotope geochemistry of the c. 3490 Ma Dresser Formation hydrothermal deposit, Pilbara Craton, Western Australia. In Earth's Oldest Rocks, Van Kranendonk MJ, Smithies RH, Bennett V (eds), pp 879-896. New York: Elsevier pdf

13. Nishizawa M, Sano Y, Ueno Y, Maruyama S (2007) Speciation and isotope ratios of nitrogen in fluid inclusions from seafloor hydrothermal deposits at ~3.5 Ga. Earth and Planetary Science Letters 254: 332-344

12. Iizuka T, Komiya T, Ueno Y, Katayama I, Uehara Y, Maruyama S, Hirata T, Johnson SP, Dunkley D (2007) Geology and zircon geochronology of the Acasta Gneiss Complex, northwestern Canada: new constraints on its tectonothermal history. Precambrian Research 153: 179-208

11. Ueno Y, Yamada K, Yoshida N, Maruyama S, Isozaki Y (2006) Biosignatures and abiotic constraints on Early life (Reply). Nature 444: E19 (doi:10.1038/nature05500)

10. Ueno Y, Yamada K, Yoshida N, Maruyama S, Isozaki Y (2006) Evidence from fluid inclusions for microbial methanogenesis in the early Archaean era. Nature 440: 516-519

9. Ueno Y, Isozaki Y, McNamara KJ (2006) Coccoid-like microstructures in a 3.0 Ga chert from Western Australia. International Geology Review 48: 78-88. pdf

8. Igisu M, Nakashima S, Ueno Y, Awramik SM, Maruyama S (2006) In situ infrared microspectroscopy of ~850 million-year-old prokaryotic fossils. Applied Spectroscopy 60: 1111-1120

7. Sakurai R, Ito M, Ueno Y, Kitajima K, Maruyama S (2005) Facies architecture and sequence-stratigraphic features of the Tumbiana Formation in the Pilbara Craton, northwestern Australia: implications for depositional environments of oxygenic stromatolites during the Late Archean. Precambrian Research 138: 255-273

6. Nishizawa M, Takahata N, Terada K, Komiya T, Ueno Y, Sano Y (2005) Rare-Earth element, lead, carbon, and nitrogen isotope geochemistry of apatite-bearing metasediments from the ~3.8 Ga Isua Supracrustal Belt, West Greenland. International Geology Review 47: 952-970. pdf

5. Ueno Y, Yoshioka H, Maruyama S, Isozaki Y (2004) Carbon isotopes and petrography of kerogens in ~3.5-Ga hydrothermal silica dikes in the North Pole area, Western Australia. Geochimica et Cosmochimica Acta 68: 573-589

4. Nishizawa M, Terada K, Ueno Y, Sano Y (2004) Ion microprobe U-Pb dating and REE analysis of apatite from kerogen-rich silica dike from North Pole area, Pilbara Craton, Western Australia. Geochemical Journal 38: 243-254. pdf

3. Ueno Y, Yurimoto H, Yoshioka H, Komiya T, Maruyama S (2002) Ion microprobe analysis of graphite from ca. 3.8 Ga metasediments, Isua supracrustal belt, West Greenland: Relationship between metamorphism and carbon isotopic composition. Geochimica et Cosmochimica Acta 66: 1257-1268

2. Ueno Y, Isozaki Y, Yurimoto H, Maruyama S (2001) Early Archean (ca. 3.5 Ga) microfossils and 13C-depleted carbonaceous matter in the North Pole area, Western Australia: Field occurrence and geochemistry. In Geochemistry and the Origin of Life, Nakashima S, Maruyama S, Brack A, Windley BF (eds), pp 203-236. Tokyo: Universal Academy Press pdf

1. Ueno Y, Isozaki Y, Yurimoto H, Maruyama S (2001) Carbon isotopic signatures of individual Archean microfossils (?) from Western Australia. International Geology Review 43: 196-212. pdf