PUBLICATIONS

Editors: Books and Special Issues of Journals
  1. Ohmoto, H. and Horikoshi, E., eds. (1978) Special Issue devoted to the Japan-U.S. Kuroko Research Project: Mining Geology, 28, No. 15, 215-300.
  2. Ohmoto, H. and Skinner, B.J., eds. (1983) The Kuroko and Related Volcanogenic Massive Sulfide Deposits: Economic Geology, Monograph 5, 604p.
  3. Ishihara, S., Urabe, T. and Ohmoto, H. eds. (1993) Proceedings of the 29th international geological congress, Mineral resources symposia volume A: Resource Geology, Sp. Issue, No. 15. 460p.
  4. Ishihara, S., Urabe, T. and Ohmoto, H. eds. (1993) Proceedings of the 29th international geological congress, Mineral resources symposia volume B: Resource Geology, Sp. Issue, No. 16. 360p.
  5. Ishihara, S., Urabe, T. and Ohmoto, H. eds. (1993) Proceedings of the 29th international geological congress, Mineral resources symposia volume C: Resource Geology, Sp. Issue, No. 17. 375p.
  6. Ohmoto, H., ed. (1994) A Special Issue in Honor of Heinrich D. Holland: Geochimica et Cosmochimica Acta.
  7. Ohmoto, H. and Stephen E. Kesler, eds. (in press) Early evolution of the atmosphere, hydrosphere, and biosphere: Geological Society of America Spec. Paper.
Papers in Referred Journals and Book Chapters
  1. Ohmoto, H. (1964) K-Ar ages of hornblendes of the Hida gneiss complex in central Japan. Proceed. Jpn. Acad., 40, 36-41.
  2. Ohmoto, H., Hart, S.R. and Holland, H.D. (1966) Studies in the Providencia area, Mexico, II, K-Ar and Rb-Sr ages of intrusive rocks and hydrothermal minerals. Econ. Geol., 61, 1205-1213.
  3. Ohmoto, H. and Rye, R.O. (1970) The Bluebell mine, British Columbia. I. Mineralogy, paragenesis, fluid inclusions, and the isotopes of hydrogen, oxygen, and carbon. Econ. Geol., 65, 417-437.
  4. Greig, J.A., Baadsgaards, H., Cumming, G.L., Folinsbee, R.E., Krouse, H.R., Ohmoto, H., Sasaki, A., and Smejkal, V. (1971) Lead and sulfur isotopes of the Irish base metal mines in Carboniferous carbonate host rocks. Soc. Min. Geol. Jpn., Sp. Issue 2, 84-92.
  5. Ohmoto, H. (1971) Fluid inclusions and isotope study of the lead-zinc deposits at the Bluebell mine, British Columbia, Canada. Soc. Min. Geol. Jpn., Sp. Issue 2, 93- 99.
  6. Ohmoto, H. (1972) Systematics of sulfur and carbon isotopes in hydrothermal ore deposits. Econ. Geol., 67, 551-578.
  7. Robinson, B.W. and Ohmoto, H. (1973) Mineralogy, fluid inclusions and stable isotopes of the Echo Bay U-Ag-Cu deposits, Northwest Territories, Canada. Econ. Geol., 68, 635-656.
  8. Rye, R.O., Hall, W.E., and Ohmoto, H. (1974) Carbon, hydrogen, oxygen, and sulfur isotope study of the Darwin lead-silver-zinc deposit, southern California. Econ. Geol., 69, 826-842.
  9. Rye, R.O. and Ohmoto, H. (1974) Sulfur and carbon isotopes and ore genesis: A review. Econ. Geol., 69, 826-842.
  10. Ohmoto, H. and Rye, R.O. (1974) Hydrogen and oxyen isotopic compositions of fluid inclusions in the Kuroko deposits, Japan. Econ. Geol., 69, 468-481.
  11. Ohmoto, H. (1974) F.W. Clark Medal acceptance speech. Geochim. Cosmochim. Acta, 38, 980-981.
  12. Ohmoto, H. (1975) Book Review: E. Roedder, ed., Fluid Inclusion Research. Econ. Geol., 70, 1300.
  13. Rose, A.W., Barnes, H.L., Burnham, C.W., and Ohmoto, H. (1976) Report on workshop on Research Frontiers in Exploration for Non-Renewable Resources. A Report to the Division of Advanced Energy and Resources Research and Technology: Washington, D.C.: National Science Foundation, 164p.
  14. Ohmoto, H. (1977) The present status and future tasks in ore deposit research: U.S.A. and Japan. Min. Geol., 27, 213-220 (in Japanese).
  15. Kamilli, R.J. and Ohmoto, H. (1977) Paragenesis, zoning, fluid inclusions, and isotopic studies of the Finlandia vein, Colqui district, central Peru. Econ. Geol., 72, 950-982.
  16. Ripley, E.M. and Ohmoto, H. (1977) Mineralogic, sulfur isotope, and fluid inclusion studies of the stratabound copper deposits at the Raul mine, Peru. Econ. Geol., 72, 1017-1041.
  17. Casadevall, T. and Ohmoto, H. (1977) Sunnyside mine, Eureka mining district, San Juan County, Colorado: Geochemistry of gold and basemetal ore deposition in a volcanic environment. Econ. Geol., 72, 1285-1320.
  18. Krupka, K.M., Ohmoto, H. and Wickman, F.E. (1977) A new technique in neutron activation analysis of Na/K ratios of fluid inclusions and its application to the goldquartz veins at the O'Brien mine, Quebec, Canada. Can. J. Earth Sci., 14, 2760- 2770.
  19. Ohmoto, H. and Kerrick, D.M. (1977) Devolatilization equilibria in graphitic systems. Am. J. Sci., 277, 1013-1044.
  20. Ohmoto, H. and Horikoshi, E. (1978) Preface to special issue. Min. Geol., 28, 215-217.
  21. Ohmoto, H. (1978) Submarine calderas: A key to the formation of volcanogenic massive sulfide deposits? Min. Geol., 28, 215-217.
  22. Guber, A.L. and Ohmoto, H. (1978) Deep sea environment of Kuroko formation as indicated by benthic foraminifera from the Hokuroku district, Japan. Min. Geol., 28, 245-255.
  23. Ripley, E.M. and Ohmoto, H. (1979) Oxygen and hydrogen isotopic studies of ore deposition and metamorphism at the Raul mine, Peru Geochim. Cosmochim. Acta, 43, 1633-1643.
  24. Ripley, E.M. and Ohmoto, H. (1979) A Fortran program for plotting mineral stabilities in the Fe-Cu-S-O system in terms of log (SSO4/SH2S) or logfO2 vs. pH or T. Comp. Geosci., 5, 289-300.
  25. Ohmoto, H. and Rye, R.O. (1979) Isotopes of sulfur and carbon: in H.L. Barnes ed., Geochemistry of Hydrothermal Ore Deposits, Second Edition: John Wiley & Sons, 509-567.
  26. McLimans, R.K., Barnes, H.L., and Ohmoto, H. (1980) Sphalerite stratigraphy of the Upper Mississippi Valley zinc-lead district, southwest Wisconsin. Econ. Geol., 75, 351-361.
  27. Burnham, C.W. and Ohmoto, H. (1980) Late-stage processes of felsic magmatism. Min. Geol., Sp. Issue 8, 1-12.
  28. Burnham, C.W. and Ohmoto, H. (1981) Late magmatic and hydrothermal processes in ore formation: Mineral Resources: Genetic Understanding for Practical Applications. National Academy Press, Washington, 62-72.
  29. Patterson, D.J., Ohmoto, H., and Solomon, M. (1981) Geological setting and genesis of cassiterite-sulfide mineralization at Renison Bell, western Tasmania. Econ. Geol., 76, 393-438.
  30. Styrt, M.M., Brackman, A.J., Holland, H.D., Clark, B.C., Pisutha-Arnond, V., Eldridge, C.S., and Ohmoto, H. (1981) The mineralogy and the isotopic composition of sulfur in hydrothermal sulfide/sulfate deposits on the East Pacific Rise at 21°N: Earth Planet. Sci. Lett., 53, 382-390.
  31. Kusakabe, M., Chiba, H., and Ohmoto, H. (1982) Stable isotopes and fluid inclusion study of anhydrite from the East Pacific Rise at 21°N. Geochem. J., 16, 89-95.
  32. Ohmoto, H. and Lasaga, A.C. (1982) Kinetics of reactions between aqueous sulfates and sulfides in hydrothermal systems. Geochim. Cosmochim. Acta, 46, 1727-1745.
  33. Ohmoto, H. and Skinner, B.J. (1983) The Kuroko and related volcanogenic massive sulfide deposits: Preface and summary of new findings. Econ. Geol., Mon. 5, 1-8.
  34. Ohmoto, H. (1983) Geologic setting of the Kuroko deposits, Japan. Part I. Geologic history of the Green Tuff region. Econ. Geol., Mon. 5, 9-23.
  35. Tanimura, S., Date, J., Takahashi, T., and Ohmoto, H. (1983) Geologic setting of the Kuroko deposits, Japan. Part II. Stratigraphy and structure of the Hokuroku district. Econ. Geol., Mon. 5, 24-39.
  36. Ohmoto, H. and Takahashi, T. (1983) Geologic setting of the Kuroko deposits, Japan: Part III. Submarine calderas and Kuroko genesis. Econ. Geol., Mon. 5, 39- 54.
  37. Eldridge, C.S., Barton, P.B., and Ohmoto, H. (1983) Mineral textures and their bearing on formation of the Kuroko ore bodies. Econ. Geol., Mon. 5, 241-281.
  38. Green, G.R., Ohmoto, H., Date, J., and Takahashi, T. (1983) Whole-rock oxygen isotope distribution in the Fukazawa-Kosaka area, Hokuroku district, Japan, and its potential application to mineral exploration. Econ. Geol., Monograph 5, 391-411.
  39. Tsutsumi, T. and Ohmoto, H. (1983) A preliminary oxygen isotope study of tetsusekiei ores associated with Kuroko deposits in the Hokuroku district, Japan. Econ. Geol., Mon. 5, 433-438.
  40. Pisutha-Arnond, V. and Ohmoto, H. (1983) Thermal histroy, and chemical and isotopic compositions of the ore-forming fluids responsible for the Kuroko massive sulfide deposits in the Hokuroku district of Japan. Econ. Geol., Mon. 5, 523-558.
  41. Mizukami, M. and Ohmoto, H. (1983) Controlling mechanisms for the major element chemistry of aqueous solution in tuff-rich environments. Econ. Geol., Mon. 5, 559-569.
  42. Ohmoto, H., Mizukami, M., Drummond, S.E., Eldridge, C.S., Pisutha-Arnond, V., and Lenagh, T. (1983) Chemical processes of Kuroko formation. Econ. Geol., Mon. 5, 570-604.
  43. Cole, D.R., Ohmoto, H., and Lasaga, A.C. (1983) Isotopic exchange in mineralfluid systems. I. Theoretical evaluation of oxygen isotopic exchange accompanying surface reactions and diffusion. Geochim. Cosmochim. Acta, 47, 1681-1693.
  44. Wesolowski, D., Drummond, S.E., Mesmer, R.E., and Ohmoto, H. (1984) Hydrolysis equilibria of tungsten (VI) in aqueous sodium chloride solutions to 300°C. Inorg. Chem., 23, 1120-1130.
  45. Drummond, S.E. and Ohmoto, H. (1985) Chemical evolution and mineral deposition in boiling hydrothermal systems. Econ. Geol., 80, 126-147.
  46. Ohmoto (1985) Book Review of "Metal deposits in Relation to Plate Tectonics; Minerals and Rocks" V.16, by F.J. Sawkins, Springer, Verlag, Berlin, 325p. EOS, 66, 93.
  47. Wesolowski, D. and Ohmoto, H. (1986) Oxygen isotope fractionation factors between water and minerals scheelite and powellite: Econ. Geol., 81, 471-477.
  48. Ohmoto, H. (1986) Stable isotope geochemistry of ore deposits: J.W. Valley, H.P. Taylor, Jr., and J.R. O'Neil, eds., Reviews in Mineralogy Volume 16: Stable Isotopes in High Temperature Geological Processes: Mineralogical Society of America, 491-560.
  49. Cole, D.R. and Ohmoto, H. (1986) Kinetics of isotope exchange at elevated temperatures and pressures: J.W. Valley, H.P. Taylor, Jr., and J.R. O'Neil, eds., Reviews in Mineralogy Volume 16: Stable Isotopes in High Temperature Geological Processes: Mineralogical Society of America, 41-90.
  50. Rose, A.W., Smith, A.T., Lustwerk, R.L., Ohmoto, H., and Hoy, L.D. (1986) Geochemical aspects of stratiform and red-bed copper deposits in the Catskill Formation (Pennsylvania, USA) and Redstone area (Canada). Sequence of mineralization in sediment-hosted copper deposits (Part 3). In: G.H. Friedrich et al., eds., Geology and Metallogeny of Copper Deposits. Springer-Verlag, Berlin, 412- 421.
  51. Ohmoto, H. and Felder, R.P. (1987) Bacterial activity in warmer, sulphate-bearing, Archaean oceans. Nature, 328, 244-246.
  52. Cole, D.R., Mottl, M.J., and Ohmoto, H. (1987) Isotopic exchange in mineral-fluid systems. II. Oxygen and hydrogen isotopic investigation of the experimental basalseawater system. Geochim. Cosmochim. Acta, 51, 1523-1538.
  53. Kaiser, C.J. and Ohmoto, H. (1988) Ore-controlling structures of Mississippi Valley-type mineralization on the North American midcontinent as products of late Paleozoic convergent plate tectonism. In: Kisvarsanyi, G., ed., Teconic Control of Ore Deposits: University of Missouri-Rolla, MO. 424-430.
  54. Wesolowski, D., Cramer, J.J., and Ohmoto, H. (1988) Scheelite mineralization in skarns adjacent to Devonian granitoids at King Island, Tasmania. In: R.P. Taylor, ed., Recent Advances in the Geology of Granite Related Mineral Deposits. Can. Inst. of Mining Bull. Acta. Spec. 39, 135-154.
  55. Eldridge, C.S., Compston, W., Williams, I.S., Both, R.A., Ohmoto, H., and Walshe, J.L. (1988) Sulfur isotopic variability in sediment hosted massive sulfide deposits as determined using ion microprobe SHRIMP (1): An example from the Rammelsberg ore body. Econ. Geol., 443-449.
  56. Eldridge, C.S., Ohmoto, H., Boucier, W.L., and Barnes, H.L. (1988) Hydrothermal inoculation and incubation of the chalcopyrite desease in sphalerite. Econ. Geol., 978-989.
  57. Bluth, G. and Ohmoto, H. (1988) Sulfide-sulfate chimneys on the East Pacific Rise, 11° and 13 °N latitudes. Part II: sulfur isotopes. In: Martin, R.F., ed., Recent Hydrothermal Mineralization at Sea floor Spreading Centers. Can. Mineral., 26, 505-515.
  58. Graham, U., Bluth, G. and Ohmoto, H. (1988) Sulfide-sulfate chimneys on the East Pacific Rise, 11° and 13 °N latitudes. Part I: mineralogy and paragenesis. In: Martin, R.F., ed., Recent Hydrothermal Mineralization at Sea floor Spreading Centers. Can. Mineral., 26, 487-504.
  59. Ohmoto, H. (1988) Progression of ore deposit science from a subordinate to a principal position in the Earth and Planetary Sciences. Min. Geol., 38, 163-171 (in Japanese).
  60. Poulson, S. and Ohmoto, H. (1989) Devolatilization equilibria in graphite- pyritepyrrhotite bearing pelites, with respect to magma-pelite interaction and dehydration reactions. Contr. Minera. Petrol., 101, 418-425.
  61. Gauthier-Lafaye, F., Weber, F. and Ohmoto, H. (1989) Natural fission reactors of Oklo. Econ. Geol., 84, 2286-2295.
  62. Eldridge, C.S., Walshe, J.L., Compston, W., Williams, I.S., Both, R.A., and Ohmoto, H. (1989) Sulfur isotope variability in sediment-hosted massive sulfide deposits as determined using the ion microprobe SHRIMP: I. An example from the Rammelsber orebody - A reply. Econ. Geol., 84, 453-457.
  63. Hoy, L.D. and Ohmoto, H. (1989) Constraints for the genesis of red-bed associated stratiform Cu deposits from S and C mass balance relations. In: R.W. Boyl et al., eds. Sediment-hosted Stratiform Copper Deposits, Geol. Assoc. Canada Special Paper 36, 135-149.
  64. Ohmoto, H., Kaiser, C.J., and Geer, K.A. (1990) Systematics of sulphur isotopes in recent marine sediments and ancient sediment-hosted basemetal deposits. In: H.M. Herbert & S.E. Ho eds., Stable Isotopes and Fluid Processes in Mineralisation: The Univ. of Western Australia Publication No. 23, 70-120.
  65. Poulson, S.R. and Ohmoto, H. (1990) An evaluation of the solubility of sulfide sulfur in silicate melts from experimental data and natural samples. Chem. Geol., 85, 57-75.
  66. Haruna, M., Ueno, H. and Ohmoto, H. (1990) Development of skarn-type ores at the Tengumori copper deposit of the Kamaishi Mine, Iwate Prefecture, Northeastern Japan. Min. Geol., 40, 223-244.
  67. Whelan, J.F., Rye, R.O. and Ohmoto, H. (1990) Isotopic geochemistry of mid- Proterozoic evaporite basin: Balmat, New York. Am. J. Sci., 290, 396-424.
  68. Kamilli, R.J. and Ohmoto, H. (1990) Crystallization and recrystallization of growthzoned vein quartz crystals from epithermal systems - implications for fluid inclusion studies - a discussion. Econ. Geol., 85, 1084-1085.
  69. Chu, Xue-lei and Ohmoto, H. (1991) Kinetics of isotope exchange reactions involving intra- and inter-molecular reaactions. Part I. Rate law for system with two chemical compounds and three exchangeable atoms. Geochim. Cosmochim. Acta, 55, 1953-1963.
  70. Ohmoto, H., Hayashi, K., Ohuma, K., Tsukamoto, K., Kitakaze, A., Nakano, Y., and Yamamoto, T. (1991) Solubility and reaction kinetics of solution-solid reactions determined by in situ observations. Nature, 351, 634-636.
  71. Hayashi, K., and Ohmoto, H. (1991) Solubility of gold in NaCl- and H2S-bearing aqueous solutions at 250 - 350°C. Geochim. Cosmochim. Acta, 55, 2111-2126.
  72. Poulson, S.R., Kubilius, W.P. and Ohmoto, H. (1991) Local-scale and regional scale geochemical behavior of sulfur in granitoids during the intrusion of the South Mountain Batholith, Nova Scotica, Canada. Geochim. Cosmochim. Acta, 55, 3809-3830.
  73. Kojima, S. and Ohmoto, H. (1991) Hydrothermal synthesis of wurtzite and sphalerite at T = 350° - 250°C. Min. Geol., 41, 313-327.
  74. Ohmoto, H. (1992) Biogeochemistry of sulfur and the mechanisms of sulfide-sulfae mineralization in Archean oceans. In M. Schidlowski, S. Golubic, M.M. Kimberley, D.M. Mckirdy, P.A. Trudinger eds., Early Organic Evolution: Implications for Mineral & Energy Resources, Springer-Verlag, 378-397.
  75. Cole, D.R., Ohmoto, H. and Jacobs, G.K. (1992) Isotopic exchange in mineral-fluid systems. III. Rates and mechanisms of oxygen isotope exchange in the system granite-H2O±NaCl±KCl at hydrothermal conditions. Geochim. Cosmochim. Acta, 56, 445-466.
  76. Ohmoto, H. (1993) Resource geology in new earth sciences. Res. Geol., Sp. Issue, 13, 5-15 (in Japanese).
  77. Hayashi, K., Hiratsuka, M., Nomura, T., and Ohmoto, H. (1993) In situ observation of mineral-solution reactions: solubility determination of minerals in the system containing gaseous species. Res. Geol., Sp. Issue, 15, 351-359.
  78. Chu, X. and Ohmoto, H. (1993) The role of polysulfides in sulfur isotope exchange reactions in the aqueous sulfide-thiorulfate system. Res. Geol., Sp. Issue, 16, 1-8.
  79. Jakobsen, U.H. and Ohmoto, H. (1993) Bitumen associated with precipitation of sulphides in a carbonate-hosted vein mineralization, North Greenland. In. Parnell, J., Kucha, H. and Landais, P. eds. Bitumen in Ore Deposits, Springer-Verlag, 399-414.
  80. Ohmoto, H., Kakegawa, T., and Lowe, D.R. (1993) 3.4-billion-year-old biogenic pyrites from Barberton, South Africa: sulfur isotope evidence. Science, 262, 555-557.
  81. Ohmoto, H. and Logsdon, M. (1994) Preface. The Heinrich D. Holland Special Issue: Geochim. Cosmochim. Acta, 58, 2153-2156.
  82. Ohmoto, H., Hayashi, K., and Kajisa, Y. (1994) Experimental study of the solubilities of pyrite in NaCl-bearing aqueous solutions at 250°- 350°C. Geochim. Cosmochim. Acta, 58, 2169-2185.
  83. Graham, U.M. and Ohmoto, H. (1994) Experimental study of formational mechanisms of hydrothermal pyrite. Geochim. Cosmochim. Acta, 58, 2186-2202.
  84. Ohmoto, H. (1994) Acceptance of the SEG Silver Medal. Econ. Geol., 89, 2028-2030.
  85. Poulson, S.R., Ohmoto, H., and Ross, T.P. (1995) Stable isotope geochemistry of waters and gases (CO2, CH4) from the overpressured Morganza and Moore-Sams Fields, Louisiana Gulf Coast. Appl. Geochem., 10, 407-417.
  86. Ohmoto, H. (1996) Formation of volcanogenic massive sulfide deposits. Ore Geol. Rev., 10, 135-177.
  87. Naraoka, H., Ohtake, M., Maruyama, S., and Ohmoto, H. (1996) Non-biogenic graphiite in 3.8 Ga metamorphic rocks from the Isua district, Greenland. Chem. Geol., 113, 251-260.
  88. Haruna, M. and Ohmoto, H. (1996) Oxygen isotope study of copper skarns at the Tengumori deposit, Kamaishi mine. Res. Geol., 46, 125-136.
  89. Ohmoto, H. (1996) Evidence in pre-2.2 Ga paleosols for the early evolution of atmospheric oxygen and terrestrial biota. Geology, 24, 1135-1138.
  90. Hayashi, K. and Ohmoto, H. (1996) Oxygen isotope study of metamorphosed
    manganese deposits of the Noda-Tamagawa mine, northeast Japan. J. Mineral., Petrol. Econ. Geol., 91, 408-418.
  91. Ohmoto, H. and Goldhaber, M. (1997) Sulfur and carbon isotopes In: Barnes, H.L. ed. Geochemistry of Hydrothermal Ore Deposits, v. III. John Wiley & Sons, New York, 517-611.
  92. Watanabe, Y., Naraoka, H., Wronkiewics, D.J., Condie, K.C., and Ohmoto, H. (1997) Carbon, nitrogen, and sulfur geochemistry of Archean and Proterozoic shales from the Kaapvaal Craton, South Africa. Geochim. Cosmochim. Acta, 61, 3441-3459.
  93. Hayashi, K., Fujisawa, H., Holland, H.D., and Ohmoto, H. (1997) Geochemistry of ~1.9 Ga sedimentary rocks from northeastern Labrador, Canada. Geochim. Cosmochim. Acta, 61, 4115-4138.
  94. Ohmoto, H. (1997) Evidence in pre-2.2 Ga paleosols for the early evolution of atmospheric oxygen and terrestrial biota: Reply. Geology, 25, 858-859.
  95. Ohmoto, H. (1997) When did the Earth's atmosphere become oxic? The Geochemical News, Fall, 1997, 12-13 and 26-27.
  96. Manaka, M., Tsukamoto, K., and Ohmoto, H. (1997) The differences in dissolution mechanisms of n- and p-type pyrite crystals. Jpn J. Cryst. Growth, 24, 261-269.
  97. Kakegawa, T. and Ohmoto, H. (1998) Origins of pyrites in the ~2.5 Ga Mt. McRae Shale, the Hamersley district, western Australia. Geochim. Cosmochim. Acta, 62, 3205-3220.
  98. Kojima, S. Hanamuro, T., Hayashi, K., Haruna, M., and Ohmoto, H. (1998) Sulphide minerals in Early chemical sedimentary rocks of the eastern Pilbara district, Western Australia. Mineral. Petrol., 64, 219-235.
  99. Kakegawa, T. and Ohmoto, H. (1999) Sulfur isotope evidence for the origin of 3.4 to 3.1 Ga pyrite at the Princeton gold mine, Barberton Greenstone Belt, South Africa. Precam. Res., 96, 209-224.
  100. Ohmoto, H. (1999) Redox state of the Archean atmosphere: Evidence from detrital heavy minerals in ca. 3250-2750 Ma sandstones from the Pilbara Craton, Australia: Comment. Geology, 27, 1151-1152.
  101. Kamei, G. and Ohmoto, H. (2000) The kinetics of reactions between pyrite and O2- bearing water revealed from in situ measurements of DO, Eh and pH in a closed system. Geochim. Cosmochim. Acta, 64, 2585-2601.
  102. Kakegawa, T., Kasahara, Y., Hayashi, K., and Ohmoto, H. (2000) Sulfur and carbon isotope analyses of the 2.7 Ga Jeerinah Formation, Fortescue Group, Australia. Geochem. J., 34, 121-133.
  103. Liu, Y., Naraoka, H., Hayashi, K., and Ohmoto, H. (2000) Laser microprobe technique for stable carbon isotope analyses of organic carbon in sedimentary rocks. Geochem. J., 34, 195-205.
  104. Watanabe, Y., Martini, J.E.J., Ohmoto, H. (2000) Geochemical evidence for terrestrial ecosystems 2.6 billion years ago. Nature, 408, 574-578.
  105. Hayashi, K., Shibata, H., Yui, M., and Ohmoto, H. (2001) Experimental study assessing the role of sedimentary organic materials to control the redox state of groundwater: consumption of dissolved oxygen by humic acid. Res. Geol., 51, 45-54.
  106. Ohmoto, H., Yamaguchi, K.E., and Ono, S. (2001) Questions regarding Precambrian sulfur isotope fractionation. Science, 292, 1959a.
  107. Lasaga, A.C. and Ohmoto, H. (2002) The oxygen geochemical cycle: Dynamics and stability. Geochim. Cosmochim. Acta, 66, 361-381.
  108. Yoshida, T., Hayashi, K., and Ohmoto, H. (2002) Dissolution of iron hydroxides by marine bacterial siderphore. Chem. Geol., 184, 1-9.
  109. Beukes, N.J., Doland, H., Guzmer, J., Nedachi, M., and Ohmoto, H. (2002) Tropical laterites, life on land, and the history of atmospheric oxygen in the Paleoproterozoic. Geology, 30, 491-495.
  110. Haruna, M., Hanamuro, T., Uyeda, K., Fujimaki, H., and Ohmoto, H. (2003) Chemical, isotopic, and fluid inclusion evidence for the hydrothermal alteration of the footwall rocks of the B"IF-hosted iron ore deposits in the Hamersley district, Western Australia.  Resource Geology, 53, 75-88.
  111. Ohmoto, H. (2003) Reply to comments by H. D. Holland on “The oxygen geochemical cycle: Dynamics and stability,” Geochim. Cosmochim. Acta 66, 361-381, 2002, Geochim. Cosmochim. Acta, 67, 791-795.
  112. Ohmoto, H. (2003) Non-redox transformation of magnetite–hematite in hydrothermal systems, Econ. Geol., 98, 157-161.
  113. Ohmoto, H. (2004) Archean atmosphere, hydrosphere, and biosphere. In: P. Erickson et al., eds. Tempos in Precambrian, Elsevier.
  114. Ohmoto, H., Spangler, K. R., Watanabe, Y., and Kamei, G. (2004) Smectite dissolution kinetics in high-alkaline conditions.  In:  Oversby, V. M. & Werme, L. O. eds.  Scientific Basis for Nuclear Waste Management XXVII, Materials Research Society, 807 , 723-728.
  115. Watanabe, Y., Stewart, B.W., and Ohmoto, H. (2004) Organic- and carbonate-rich soil formation ~2.6 billion years ago at Schagen, East Transvaal district, South Africa.  Geochim. Cosmochim. Acta 68, 2129-2151. 
  116. Ohmoto, H., Watanabe, Y., and Kumazawa, K. (2004) Evidence from massive siderite beds for a CO2-rich atmosphere before ~1.8 billion years ago.  Nature 429, 395-399.
  117. Jiménez-López, C., Romanek, C., Huertas, F. V., Ohmoto, H., and Caballero, E. (2004)   Oxygen isotope fractionation in synthetic magnesian calcite.  Geochim. Cosmochim. Acta, v. 68, p. 3367-3377.
  118. Ohmoto, H. and Watanabe, Y. (2004) Reply to “Archaean atmosphere and climate” by Kasting , J. and "Archaean paleosols and Archaean air" by Sleep, M.H., Nature 25 November 204/www/nature.com/nature, p. 1-2
  119. Nedachi, Y., Nedachi, M., Bennett, G., and Ohmoto, H. (2005) Geochemistry and mineralogy of the 2.45 Ga Pronto paleosols, Ontario, Canada. Chem. Geol., 214, 21-44.
  120. Yamaghuchi, K.E., Johnson, C.M., Beard, B.L., and Ohmoto, H. (2005) Biogeochemical cycling of iron in the Archean-Paleoproterozoic Earth:  Constraints from iron isotope variations in sedimentary rocks from the Kaapvaal and Pilbara Cratons.  Chem. Geol., 214, 135-169.
  121. Yamaguchi, K.E., Ohmoto, H. (2006) Comment on "Iron Isotope Constraints on the Archean and Paleoproterozoic Ocean Redox State." Science, 311, p. 177a.
  122. Ohomoto, H., Watanabe, Y., Yamaguchi, K.E., Naraoka, H., Kakegawa, T., Haruna M., Hayashi, K., and Kato, Y. (2006) Chemical and biological evolution of early Earth:  Constraints from banded iron-formations.  In Kesler, S. and Ohmoto, H. eds.  Evolution of the Atmosphere, Hydrosphere, and Biosphere on Early Earth:  Constraints from Ore Deposits, Geological Society of America Memoir 198, 291-331.
  123. Kato, Y., Yamaguchi, K., and Ohmoto, H. (2006) Rare earth elements in Precambrian banded iron formations :  Secular changes of Ce and Eu anomalies and evolution of atmospheric oxygen.  In Kesler, S. and Ohmoto, H. eds. Evolution of the Atmosphere, Hydrosphere, and Biosphere on Early Earth:  Constraints from Ore Deposits, Geological Society of America Memoir 198, 269-289.
  124. Ohmoto, H. Watanabe, Y., Ikemi, H., Poulson, S.R., and Taylor, B. E. (2006) Absence of mass-independent fractionation of sulfur isotopes:  an oxic Archean atmosphere?  Nature.
  125. Yamaguchi, K.E. and Ohmoto, H. (in press) Evidence from sulfur isotope and trace elements in pyrites for their multiple post-depositional processes in uranium ores at the Stanleigh mine, Elliot Lake, Ontario, Canada.  In Kesler, S. and Ohmoto, H. eds. Evoution of the Atmosphere, Hydrosphere, and Biosphere on Early Earth:  Constraints from Ore Deposits, Geological Society of America Sp. Vol.
  126. Yamaguchi, K. and Homoto, H. (in press) Geochemical and isotopic constraints on the oigins of paleoproterozoic red shales of the Gramagara/Mapedi Formation, Olifantshoek Group, south Africa.  South African Journal of Geology.
  127. Ishihara, S., Ohmoto, H., Anhaeusser, C.R., Imai, A., and Robb, L.J. (in press) Discovery of the oldest oxic granitoids in the Kaapvaal Craton and its implications to the redox evolution of early Earth.  In Kesler, S. and Ohmoto, H. Eds.  Evolution of the Atmosphere, Hydrosphere, and Biosphere on Early Earth:  Constraints from Ore Deposits, Geological Society of America Sp. Vol.

 

Papers in in-House Newsletter
  1. Ohmoto, H. (1975) Isotopes and the genesis of ore deposits. Earth and Mineral Sciences, The Pennsylvania State University, 44, 68-70.
  2. Ohmoto, H. (1985) Hot springs, volcanism, and geochemical cycles. Earth and Mineral Sciences, The Pennsylvania State University, 55, 6-8.



This is personal website of Dr. Hiroshi Ohmoto
The Pennsylvania State University