| PUBLICATIONS
Editors: Books and Special Issues of Journals
- 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.
- Ohmoto, H. and Skinner, B.J., eds. (1983) The Kuroko and Related
Volcanogenic Massive Sulfide Deposits: Economic Geology, Monograph
5, 604p.
- 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.
- 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.
- 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.
- Ohmoto, H., ed. (1994) A Special Issue in Honor of Heinrich
D. Holland: Geochimica et Cosmochimica Acta.
- 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
- Ohmoto, H. (1964) K-Ar ages of hornblendes of the Hida gneiss
complex in central Japan. Proceed. Jpn. Acad., 40, 36-41.
- 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.
- 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.
- 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.
- 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.
- Ohmoto, H. (1972) Systematics of sulfur and carbon isotopes
in hydrothermal ore deposits. Econ. Geol., 67, 551-578.
- 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.
- 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.
- Rye, R.O. and Ohmoto, H. (1974) Sulfur and carbon isotopes and
ore genesis: A review. Econ. Geol., 69, 826-842.
- 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.
- Ohmoto, H. (1974) F.W. Clark Medal acceptance speech. Geochim.
Cosmochim. Acta, 38, 980-981.
- Ohmoto, H. (1975) Book Review: E. Roedder, ed., Fluid Inclusion
Research. Econ. Geol., 70, 1300.
- 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.
- 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).
- 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.
- 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.
- 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.
- 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.
- Ohmoto, H. and Kerrick, D.M. (1977) Devolatilization equilibria
in graphitic systems. Am. J. Sci., 277, 1013-1044.
- Ohmoto, H. and Horikoshi, E. (1978) Preface to special issue.
Min. Geol., 28, 215-217.
- Ohmoto, H. (1978) Submarine calderas: A key to the formation
of volcanogenic massive sulfide deposits? Min. Geol., 28, 215-217.
- 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.
- 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.
- 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.
- 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.
- 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.
- Burnham, C.W. and Ohmoto, H. (1980) Late-stage processes of
felsic magmatism. Min. Geol., Sp. Issue 8, 1-12.
- 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.
- 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.
- 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.
- 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.
- Ohmoto, H. and Lasaga, A.C. (1982) Kinetics of reactions between
aqueous sulfates and sulfides in hydrothermal systems. Geochim.
Cosmochim. Acta, 46, 1727-1745.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- Drummond, S.E. and Ohmoto, H. (1985) Chemical evolution and
mineral deposition in boiling hydrothermal systems. Econ. Geol.,
80, 126-147.
- 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.
- Wesolowski, D. and Ohmoto, H. (1986) Oxygen isotope fractionation
factors between water and minerals scheelite and powellite: Econ.
Geol., 81, 471-477.
- 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.
- 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.
- 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.
- Ohmoto, H. and Felder, R.P. (1987) Bacterial activity in warmer,
sulphate-bearing, Archaean oceans. Nature, 328, 244-246.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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).
- 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.
- Gauthier-Lafaye, F., Weber, F. and Ohmoto, H. (1989) Natural
fission reactors of Oklo. Econ. Geol., 84, 2286-2295.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- Kojima, S. and Ohmoto, H. (1991) Hydrothermal synthesis of wurtzite
and sphalerite at T = 350° - 250°C. Min. Geol., 41, 313-327.
- 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.
- 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.
- Ohmoto, H. (1993) Resource geology in new earth sciences. Res.
Geol., Sp. Issue, 13, 5-15 (in Japanese).
- 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.
- 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.
- 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.
- 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.
- Ohmoto, H. and Logsdon, M. (1994) Preface. The Heinrich D. Holland
Special Issue: Geochim. Cosmochim. Acta, 58, 2153-2156.
- 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.
- Graham, U.M. and Ohmoto, H. (1994) Experimental study of formational
mechanisms of hydrothermal pyrite. Geochim. Cosmochim. Acta, 58,
2186-2202.
- Ohmoto, H. (1994) Acceptance of the SEG Silver Medal. Econ.
Geol., 89, 2028-2030.
- 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.
- Ohmoto, H. (1996) Formation of volcanogenic massive sulfide
deposits. Ore Geol. Rev., 10, 135-177.
- 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.
- Haruna, M. and Ohmoto, H. (1996) Oxygen isotope study of copper
skarns at the Tengumori deposit, Kamaishi mine. Res. Geol., 46,
125-136.
- Ohmoto, H. (1996) Evidence in pre-2.2 Ga paleosols for the early
evolution of atmospheric oxygen and terrestrial biota. Geology,
24, 1135-1138.
- 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.
- 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.
- 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.
- 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.
- 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.
- Ohmoto, H. (1997) When did the Earth's atmosphere become oxic?
The Geochemical News, Fall, 1997, 12-13 and 26-27.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- Watanabe, Y., Martini, J.E.J., Ohmoto, H. (2000) Geochemical
evidence for terrestrial ecosystems 2.6 billion years ago. Nature,
408, 574-578.
- 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.
- Ohmoto, H., Yamaguchi, K.E., and Ono, S. (2001) Questions regarding
Precambrian sulfur isotope fractionation. Science, 292, 1959a.
- Lasaga, A.C. and Ohmoto, H. (2002) The oxygen geochemical cycle:
Dynamics and stability. Geochim. Cosmochim. Acta, 66, 361-381.
- Yoshida, T., Hayashi, K., and Ohmoto, H. (2002) Dissolution
of iron hydroxides by marine bacterial siderphore. Chem. Geol.,
184, 1-9.
- 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.
- 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.
- 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.
- Ohmoto, H. (2003) Non-redox transformation of magnetite–hematite
in hydrothermal systems, Econ. Geol., 98, 157-161.
- Ohmoto, H. (2004) Archean atmosphere, hydrosphere, and biosphere.
In: P. Erickson et al., eds. Tempos in Precambrian, Elsevier.
- 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.
- 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.
- 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.
- 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.
- 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
- 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.
- 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.
- Yamaguchi, K.E., Ohmoto, H. (2006) Comment on "Iron Isotope Constraints on the Archean and Paleoproterozoic Ocean Redox State." Science, 311, p. 177a.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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
- Ohmoto, H. (1975) Isotopes and the genesis of ore deposits.
Earth and Mineral Sciences, The Pennsylvania State University,
44, 68-70.
- Ohmoto, H. (1985) Hot springs, volcanism, and geochemical cycles.
Earth and Mineral Sciences, The Pennsylvania State University,
55, 6-8.
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