Articles | Volume 11, issue 4
https://doi.org/10.5194/se-11-1475-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/se-11-1475-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Quantifying the buffering of oceanic oxygen isotopes at ancient midocean ridges
Department of Earth and Planetary Sciences, University of California, Riverside (UCR), Riverside, CA 92521, USA
Related authors
Yoshiki Kanzaki, Isabella Chiaravalloti, Shuang Zhang, Noah J. Planavsky, and Christopher T. Reinhard
Geosci. Model Dev., 17, 4515–4532, https://doi.org/10.5194/gmd-17-4515-2024, https://doi.org/10.5194/gmd-17-4515-2024, 2024
Short summary
Short summary
Soil pH is one of the most commonly measured agronomical and biogeochemical indices, mostly reflecting exchangeable acidity. Explicit simulation of both porewater and bulk soil pH is thus crucial to the accurate evaluation of alkalinity required to counteract soil acidification and the resulting capture of anthropogenic carbon dioxide through the enhanced weathering technique. This has been enabled by the updated reactive–transport SCEPTER code and newly developed framework to simulate soil pH.
Yoshiki Kanzaki, Shuang Zhang, Noah J. Planavsky, and Christopher T. Reinhard
Geosci. Model Dev., 15, 4959–4990, https://doi.org/10.5194/gmd-15-4959-2022, https://doi.org/10.5194/gmd-15-4959-2022, 2022
Short summary
Short summary
Increasing carbon dioxide in the atmosphere is an urgent issue in the coming century. Enhanced rock weathering in soils can be one of the most efficient C capture strategies. On the basis as a weathering simulator, the newly developed SCEPTER model implements bio-mixing by fauna/humans and enables organic matter and crushed rocks/minerals at the soil surface with an option to track their particle size distributions. Those features can be useful for evaluating the carbon capture efficiency.
Yoshiki Kanzaki, Dominik Hülse, Sandra Kirtland Turner, and Andy Ridgwell
Geosci. Model Dev., 14, 5999–6023, https://doi.org/10.5194/gmd-14-5999-2021, https://doi.org/10.5194/gmd-14-5999-2021, 2021
Short summary
Short summary
Sedimentary carbonate plays a central role in regulating Earth’s carbon cycle and climate, and also serves as an archive of paleoenvironments, hosting various trace elements/isotopes. To help obtain
trueenvironmental changes from carbonate records over diagenetic distortion, IMP has been newly developed and has the capability to simulate the diagenesis of multiple carbonate particles and implement different styles of particle mixing by benthos using an adapted transition matrix method.
Yoshiki Kanzaki, Bernard P. Boudreau, Sandra Kirtland Turner, and Andy Ridgwell
Geosci. Model Dev., 12, 4469–4496, https://doi.org/10.5194/gmd-12-4469-2019, https://doi.org/10.5194/gmd-12-4469-2019, 2019
Short summary
Short summary
This paper provides eLABS, an extension of the lattice-automaton bioturbation simulator LABS. In our new model, the benthic animal behavior interacts and changes dynamically with oxygen and organic matter concentrations and the water flows caused by benthic animals themselves, in a 2-D marine-sediment grid. The model can address the mechanisms behind empirical observations of bioturbation based on the interactions between physical, chemical and biological aspects of marine sediment.
Yoshiki Kanzaki, Isabella Chiaravalloti, Shuang Zhang, Noah J. Planavsky, and Christopher T. Reinhard
Geosci. Model Dev., 17, 4515–4532, https://doi.org/10.5194/gmd-17-4515-2024, https://doi.org/10.5194/gmd-17-4515-2024, 2024
Short summary
Short summary
Soil pH is one of the most commonly measured agronomical and biogeochemical indices, mostly reflecting exchangeable acidity. Explicit simulation of both porewater and bulk soil pH is thus crucial to the accurate evaluation of alkalinity required to counteract soil acidification and the resulting capture of anthropogenic carbon dioxide through the enhanced weathering technique. This has been enabled by the updated reactive–transport SCEPTER code and newly developed framework to simulate soil pH.
Yoshiki Kanzaki, Shuang Zhang, Noah J. Planavsky, and Christopher T. Reinhard
Geosci. Model Dev., 15, 4959–4990, https://doi.org/10.5194/gmd-15-4959-2022, https://doi.org/10.5194/gmd-15-4959-2022, 2022
Short summary
Short summary
Increasing carbon dioxide in the atmosphere is an urgent issue in the coming century. Enhanced rock weathering in soils can be one of the most efficient C capture strategies. On the basis as a weathering simulator, the newly developed SCEPTER model implements bio-mixing by fauna/humans and enables organic matter and crushed rocks/minerals at the soil surface with an option to track their particle size distributions. Those features can be useful for evaluating the carbon capture efficiency.
Yoshiki Kanzaki, Dominik Hülse, Sandra Kirtland Turner, and Andy Ridgwell
Geosci. Model Dev., 14, 5999–6023, https://doi.org/10.5194/gmd-14-5999-2021, https://doi.org/10.5194/gmd-14-5999-2021, 2021
Short summary
Short summary
Sedimentary carbonate plays a central role in regulating Earth’s carbon cycle and climate, and also serves as an archive of paleoenvironments, hosting various trace elements/isotopes. To help obtain
trueenvironmental changes from carbonate records over diagenetic distortion, IMP has been newly developed and has the capability to simulate the diagenesis of multiple carbonate particles and implement different styles of particle mixing by benthos using an adapted transition matrix method.
Yoshiki Kanzaki, Bernard P. Boudreau, Sandra Kirtland Turner, and Andy Ridgwell
Geosci. Model Dev., 12, 4469–4496, https://doi.org/10.5194/gmd-12-4469-2019, https://doi.org/10.5194/gmd-12-4469-2019, 2019
Short summary
Short summary
This paper provides eLABS, an extension of the lattice-automaton bioturbation simulator LABS. In our new model, the benthic animal behavior interacts and changes dynamically with oxygen and organic matter concentrations and the water flows caused by benthic animals themselves, in a 2-D marine-sediment grid. The model can address the mechanisms behind empirical observations of bioturbation based on the interactions between physical, chemical and biological aspects of marine sediment.
Related subject area
Subject area: The evolving Earth surface | Editorial team: Geochemistry, mineralogy, petrology, and volcanology | Discipline: Geochemistry
Basic chemical compositions combination rules and quantitative criterion of red beds
Vectors to ore in replacive volcanogenic massive sulfide (VMS) deposits of the northern Iberian Pyrite Belt: mineral zoning, whole rock geochemistry, and application of portable X-ray fluorescence
Rock alteration at the post-Variscan nonconformity: implications for Carboniferous–Permian surface weathering versus burial diagenesis and paleoclimate evaluation
Quartz dissolution associated with magnesium silicate hydrate cement precipitation
Understanding controls on hydrothermal dolomitisation: insights from 3D reactive transport modelling of geothermal convection
Uncertainty in regional estimates of capacity for carbon capture and storage
Guangjun Cui, Jin Liao, Linghua Kong, Cuiying Zhou, Zhen Liu, Lei Yu, and Lihai Zhang
EGUsphere, https://doi.org/10.5194/egusphere-2023-2590, https://doi.org/10.5194/egusphere-2023-2590, 2024
Short summary
Short summary
A rapid quantitative identification criterion based on the basic chemical compositions combination rules of red beds has been established, taking into account the correlation between red beds geomorphic characteristics, mineral compositions, and chemical compositions. The research results can also be applied to the quantitative identification of red beds in other fields such as resources, ecology, environment, energy, materials, etc.
Guillem Gisbert, Fernando Tornos, Emma Losantos, Juan Manuel Pons, and Juan Carlos Videira
Solid Earth, 12, 1931–1966, https://doi.org/10.5194/se-12-1931-2021, https://doi.org/10.5194/se-12-1931-2021, 2021
Short summary
Short summary
We performed a detailed study of the rocks surrounding a major Zn–Pb–Cu ore deposit in southwestern Spain in order to characterize the behaviour of chemical elements in the influence area of the hydrothermal system that produced the deposit. Based on this information we propose new ways of detecting the nearby presence of ore deposits of this kind during exploration, thus improving our ability to detect new resources and contributing to securing the future supply of metals for our society.
Fei Liang, Jun Niu, Adrian Linsel, Matthias Hinderer, Dirk Scheuvens, and Rainer Petschick
Solid Earth, 12, 1165–1184, https://doi.org/10.5194/se-12-1165-2021, https://doi.org/10.5194/se-12-1165-2021, 2021
Short summary
Short summary
In this study, we conclude that surface weathering is a primary control on rock characteristics and also guides fluids through the system during deep burial process. We also find that the formation of the rock decomposition zone depends on rock composition, climatic conditions and the duration of the process. Finally and most importantly, we provide a workflow for data reliability analysis for paleoclimate research.
Lisa de Ruiter, Anette Eleonora Gunnæs, Dag Kristian Dysthe, and Håkon Austrheim
Solid Earth, 12, 389–404, https://doi.org/10.5194/se-12-389-2021, https://doi.org/10.5194/se-12-389-2021, 2021
Short summary
Short summary
In this work, the formation of natural magnesium silicate hydrate cement has been studied. The cement forms through the extraordinarily fast dissolution of quartz under high-pH, Mg-rich conditions that occur in south-east Norway where an ultramafic body is exposed. We studied the cemented rocks and the processes that led to the formation of the cement from the field scale to the nanoscale. Magnesium silicate hydrate cement might be a low-CO2 alternative to Portland cement.
Rungroj Benjakul, Cathy Hollis, Hamish A. Robertson, Eric L. Sonnenthal, and Fiona F. Whitaker
Solid Earth, 11, 2439–2461, https://doi.org/10.5194/se-11-2439-2020, https://doi.org/10.5194/se-11-2439-2020, 2020
Short summary
Short summary
Our reactive transport models show that high-temperature fault-controlled dolomite can form from mixed convection and act as a sink for Mg in the circulating seawaters. This provides new perspectives to enhance understanding of mechanisms and controls on dolomitisation, geometry, and spatial distribution of dolomite bodies within faulted and fractured systems, which has important implications for modelling of systems ranging from geothermal resources to ore formation and carbonate diagenesis.
Mark Wilkinson and Debbie Polson
Solid Earth, 10, 1707–1715, https://doi.org/10.5194/se-10-1707-2019, https://doi.org/10.5194/se-10-1707-2019, 2019
Short summary
Short summary
Carbon capture and storage is a technology for the mitigation of industrial CO2 emissions. Most subsurface storage capacity is in rocks for which there is relatively little information. A group of experts estimated the storage capacity of seven units, producing a wide range of estimates for each unit due to a combination of using different published values for some variables and differences in their judgements of average values. Hence, there is significant uncertainty in such estimates.
Cited articles
Aachib, M., Mbonimpa, M., and Aubertin, M.: Measurement and
prediction of the oxygen diffusion coefficient in unsaturated media, with applications to soil
covers, Water Air Soil Pollut., 156, 163–193, https://doi.org/10.1023/B:WATE.0000036803.84061.e5, 2004. a
Agrinier, P., Javoy, M., and Girardeau, J.: Hydrothermal
activity in a peculiar oceanic ridge: oxygen and hydrogen isotope evidence in the Xigaze ophiolite
(Tibet, China), Chem. Geol., 71, 313–335, https://doi.org/10.1016/0009-2541(88)90057-5, 1988. a
Alt, J. C. and Bach, W.: Oxygen isotope composition of a section
of lower oceanic crust, ODP Hole 735B, Geochem. Geophys. Geosyst., 7, Q12008,
https://doi.org/10.1029/2006GC001385, 2006. a
Alt, J. C., Muehlenbachs, K., and Honnorez, J.: An oxygen isotope
profile through the upper kilometer of the oceanic crust, DSDP Hole 504B, Earth
Planet. Sci. Lett., 80, 217–229, https://doi.org/10.1016/0012-821X(86)90106-8, 1986. a, b
Alt, J. C., Zuleger, E., and Erzinger, J.: Mineralogy and stable
isotopic compositions of the hydrothermally altered lower sheeted dike complex, Hole 504B, Leg
140, Proc. ODP Sci. Res., 137/140, 155–166, https://doi.org/10.2973/odp.proc.sr.137140.013.1995, 1995. a
Bach, W. and Humphris, S. E.: Relationship between the Sr
and O isotope compositions of hydrothermal fluids and the spreading and magma-supply rates at
oceanic spreading centers, Geology, 27, 1067–1070,
https://doi.org/10.1130/0091-7613(1999)027<1067:RBTSAO>2.3.CO;2, 1999. a
Baker, E. T., Chen, Y. J., and Morgan, J. P.: The relationship
between near-axis hydrothermal cooling and the spreading rate of mid-ocean ridges, Earth
Planet. Sci. Lett., 142, 137–145, https://doi.org/10.1016/0012-821X(96)00097-0, 1996. a
Barrett, T. J. and Friedrichsen, H.: Strontium
and oxygen isotopic composition of some basalts from Hole 504B, Costa Rica Rift, DSDP Legs 69 and
70, Earth Planet. Sci. Lett., 60, 27–38, https://doi.org/10.1016/0012-821X(82)90017-6, 1982. a
Bickle, M. J. and Teagle, D. A. H.: Strontium alteration
in the Troodos ophiolite: implications for fluid fluxes and geochemical transport in mid-ocean
ridge hydrothermal systems, Earth Planet. Sci. Lett., 113, 219–237,
https://doi.org/10.1016/0012-821X(92)90221-G, 1992. a
Bindeman, I. N., Bekker, A., and Zakharov, D. O.: Oxygen
isotope perspective on crustal evolution on early Earth: A record of Precambrian shales with
emphasis on Paleoproterozoic glaciations and Great Oxygenation Event, Earth Planet. Sci. Lett.,
437, 101–113, https://doi.org/10.1016/j.epsl.2015.12.029, 2016. a
Bindeman, I. N., Bayon, G., and Palandri, J.: Triple
oxygen isotope investigation of fine-grained sediments from major world's rivers: Insights into
weathering processes and global fluxes into the hydrosphere Earth Planet. Sci. Lett., 528, 115851,
https://doi.org/10.1016/j.epsl.2019.115851, 2019. a
Blake, R. E., Chang, S. J., and Lepland, A.: Phosphate oxygen
isotopic evidence for a temperate and biologically active Archaean ocean, Nature, 464, 1029–1033,
https://doi.org/10.1038/nature08952, 2010. a
Cathles, L. M.: An analysis of the hydrothermal system
responsible for massive sulfide deposition in the Hokuroku basin of Japan, in: The Kuroko and
Related Volcanogenic Massive Sulfide Deposits, edited by: Ohmoto, H., Skinner, B. J., Society of
Economic Geologists, 439–487,
https://doi.org/10.5382/Mono.05.27, 1983. a, b, c
Catling, D. C. and Kasting, J. F.: Atmospheric
Evolution on Inhabited and Lifeless Worlds, Cambridge University Press, New York, NY, https://doi.org/10.1017/9781139020558, 2017. a
Cocker, J. D., Griffin, B. J., and Muehlenbachs, K.: Oxygen
and carbon isotope evidence for seawater-hydrothermal alteration of the Macquarie Island
ophiolite, Earth Planet. Sci. Lett., 61, 112–122, https://doi.org/10.1016/0012-821X(82)90043-7, 1982. a
Cole, D. R. and Ohmoto, H.: Kinetics of isotopic exchange at
elevated temperatures and pressures, Rev. Mineral., 16, 41–90, 1986. a
Cole, D. R., Ohmoto, H., and Lasaga, A. C.: Isotopic exchange in
mineral-fluid systems. I. Theoretical evaluation of oxygen isotopic exchange accompanying surface
reactions and diffusion, Geochim. Cosmochim. Acta, 47, 1681–1693,
https://doi.org/10.1016/0016-7037(83)90018-2, 1983. a, b
Criss, R. E., Gregory, R. T., and Taylor, Jr., H. P.: Kinetic
theory of oxygen isotopic exchange between minerals and water, Geochim. Cosmochim. Acta, 51,
1099–1108, https://doi.org/10.1016/0016-7037(87)90203-1, 1987. a
DePaolo, D. J.: Isotopic effects in fracture-dominated reactive
fluid-rock systems, Geochim. Cosmochim. Acta, 70, 1077–1096, https://doi.org/10.1016/j.gca.2005.11.022,
2006. a
Elderfield, H. and Schultz, A.: Mid-ocean ridge
hydrothermal fluxes and the chemical composition of the ocean, Annu. Rev. Earth Planet. Sci., 24,
191–224, https://doi.org/10.1146/annurev.earth.24.1.191, 1996. a, b
Elthon, D., Lawrence, J. R., Hanson, R. E., and Stern, C.:
Modelling of oxygen-isotope data from the Sarmiento ophiolite complex, Chile,
Geol. Soc. Spec. Publ., 13, 185–197, https://doi.org/10.1144/GSL.SP.1984.013.01.16, 1984. a
Gelhar, L. W., Welty, C., and Rehfeldt, K. R.: A critical
review of data on field-scale dispersion in aquifers, Water Resour. Res., 28, 1955–1974,
https://doi.org/10.1029/92WR00607, 1992. a
Fehn, U., Green, K. E., Von Herzen, R. P., and Cathles, L. M.:
Numerical models for the hydrothermal field at the Galapagos spreading center, J. Geophys. Res.,
88, 1033–1048, https://doi.org/10.1029/JB088iB02p01033, 1983. a
Fisher, A. T.: Permeability within basaltic oceanic crust,
Rev. Geophys., 32, 143–182, https://doi.org/10.1029/97RG02916, 1998. a
Frind, E. O.: Simulation of long-term transient density-dependent
transport in groundwater, Adv. Water Resour., 5, 73–88, https://doi.org/10.1016/0309-1708(82)90049-5, 1982. a
Fry, B.: Stable Isotope Ecology, Springer Science & Business Media, https://doi.org/10.1007/0-387-33745-8, 2006. a
Furnes, H., de Wit, M., Staudigel, H., Rosing, M., and
Muehlenbachs, K.: A vestige of Earth's oldest ophiolite, Science, 315, 1704–1707,
https://doi.org/10.1126/science.1139170, 2007. a
Galili, N., Shemesh, A., Yam, R., Brailovsky, I.,
Sela-Adler, M., Schuster, E. M., Collom, C., Bekker, A., Planavsky, N., Macdonald, F. A.,
Préat, A., Rudmin, M., Trela, W., Sturesson, U., Heikoop, J. M., Aurell, M., Ramajo, J., and
Halevy, I.: The geologic history of seawater oxygen isotopes from marine iron oxides, Science,
365, 469–473, https://doi.org/10.1126/science.aaw9247, 2019. a, b
Gao, Y., Vils, F., Cooper, K. M., Banerjee, N., Harris, M., Hoefs,
J., Teagle, D. A. H., Casey, J. F., Elliott, T., Laverne, C., Alt, J. C., and Muehlenbachs, K.:
Downhole variation of lithium and oxygen isotopic compositions of oceanic crust at East Pacific
Rise, ODP Site 1256, Geochem. Geophy. Geosy., 13, Q10001, https://doi.org/10.1029/2012GC004207, 2012. a
Godderis, Y. and Veizer, J.: Tectonic control of
chemical and isotopic composition of ancient oceans: the impact of continental growth,
Am. J. Sci., 300, 434–461, https://doi.org/10.2475/ajs.300.5.434, 2000. a, b, c
Goddéris, Y., François, L. M., and Veizer,
J.: The early Paleozoic carbon cycle, Earth Planet. Sci. Lett., 190, 181–196,
https://doi.org/10.1016/S0012-821X(01)00377-6, 2001. a, b
Gregory, R. T. and Taylor, Jr., H. P.: An oxygen
isotope profile in a section of Cretaceous oceanic crust, Samail ophiolite, Oman: evidence for
δ18O buffering of the oceans by deep (>5 km) seawater-hydrothermal
circulation at mid-ocean-ridges, J. Geophys. Res., 86, 2737–2755, https://doi.org/10.1029/JB086iB04p02737,
1981. a, b, c, d, e, f, g, h, i
Gregory, R. T., Criss, R. E., and Taylor, Jr., H. P.:
Oxygen isotope exchange kinetics of mineral pairs in closed and open systems: applications to
problems of hydrothermal alteration of igneous rocks and Precambrian iron formations, Chem. Geol.,
75, 1–42, https://doi.org/10.1016/0009-2541(89)90019-3, 1989. a, b
Haar, L., Gallagher, J., and Kell, G.: NBS/NRC Steam Tables:
Thermodynamic and Transport Properties and Computer Programs for Vapor and Liquid States of Water
in SI Units, Hemisphere Publishing Corporation, Washington, 1984. a
Harris, K. R. and Woolf, L. A.: Pressure and temperature
dependence of the self diffusion coefficient of water and oxygen-18 water, J. Chem. Soc., Faraday
Trans. 1, 76, 377–385, https://doi.org/10.1039/F19807600377, 1980. a
Holmden, C. and Muehlenbachs, K.: The
18O/16O ratio of 2-billion-year-old seawater inferred from ancient oceanic
crust, Science, 259, 1733–1736, https://doi.org/10.1126/science.259.5102.1733, 1993. a, b, c
Jaffrés, J. B. D., Shields, G. A., and Wallmann,
K.: The oxygen isotope evolution of seawater: A critical review of a long-standing controversy and
an improved geological water cycle model for the past 3.4 billion years, Earth-Sci. Rev., 83,
83–122, https://doi.org/10.1016/j.earscirev.2007.04.002, 2007. a, b, c, d, e, f
James, R. H., Green, D. R. H., Stock, M. J., Alker, B. J.,
Banerjee, N. R., Cole, C., German, C. R., Huvenne, V. A. I., Powell, A. M., and Connelly, D. P.:
Composition of hydrothermal fluids and mineralogy of associated chimney material on the East
Scotia Ridge back-arc spreading centre, Geochim. Cosmochim. Acta, 139, 47–71,
https://doi.org/10.1016/j.gca.2014.04.024, 2014. a
Jean-Baptiste, P., Charlou, J. L., and Stievenard, M.:
Oxygen isotope study of mid-ocean ridge hydrothermal fluids: Implication for the oxygen-18 budget
of the oceans, Geochim. Cosmochim. Acta, 61, 2669–2677, https://doi.org/10.1016/S0016-7037(97)00090-2,
1997. a
Johnson, B. W. and Wing, B. A.: Limited Archaean
continental emergence reflected in an early Archaean 18O-enriched ocean, Nat. Geosci.,
13, 243–248, https://doi.org/10.1038/s41561-020-0538-9, 2020. a
Kanzaki, Y.: kanzakiy/HT-Oiso: HT+O-iso_v0.1 (Version v0.1), Zenodo, https://doi.org/10.5281/zenodo.3922317, last access: 29 June 2020. a
Karhu, J. and Epstein, S.: The implication of the oxygen
isotope records in coexisting cherts and phosphates, Geochim. Cosmochim. Acta, 50, 1745–1756,
https://doi.org/10.1016/0016-7037(86)90136-5, 1986. a
Knauth, L. P.: Temperature and salinity history of the Precambrian
ocean: implications for the course of microbial evolution, in: Geobiology: Objectives, Concepts,
Perspectives, edited by: Noffke, N., 53–69, https://doi.org/10.1016/B978-0-444-52019-7.50007-3, 2005. a
Knauth, L. P. and Lowe, D. R.: High Archean climatic
temperature inferred from oxygen isotope geochemistry of cherts in the 3.5 Ga Swaziland
Supergroup, South Africa, Geol. Soc. Am. Bull., 115, 566–580,
https://doi.org/10.1130/0016-7606(2003)115<0566:HACTIF>2.0.CO;2, 2003. a
Korenaga, J.: Global water cycle and the coevolution of the
Earth's interior and surface environment, in: Archean Geodynamics and Environments, edited by: Benn, K.,
Mareschal, J.-C., Condie, K. C.,
7–32, https://doi.org/10.1029/164GM03, 2006. a
Korenaga, J., Planavsky, N. J., and Evans, D. A. D.:
Archean geodynamics and the thermal evolution of Earth, Phil. Trans. R. Soc. A, 375, 20150393,
https://doi.org/10.1098/rsta.2015.0393, 2017. a, b
Krynicki, K., Green, C. D., and Sawyer, D. W.: Pressure
and temperature dependence of self-diffusion in water, Faraday Discuss. Chem. Soc., 66, 199–208,
https://doi.org/10.1039/DC9786600199, 1978. a
Lawrence, J. R. and Gieskes, J. M.: Constraints on
water transport and alteration in the oceanic crust from the isotopic composition of porewater,
J. Geophys. Res., 86, 7924–7934, https://doi.org/10.1029/JB086iB09p07924, 1981. a, b
Lécuyer, C. and Fourcade, S.: Oxygen isotope
evidence for multi-stage hydrothermal alteration at a fossil slow-spreading center: the Silurian
Trinity ophiolite (California, U.S.A.), Chem. Geol., 87, 231–246,
https://doi.org/10.1016/0168-9622(91)90023-P, 1991. a
Meyer, C. A., McClintock, R. B., Silvestri, G. J., and
Spencer, R. C.: AME Steam Tables: Thermodynamic and Transport Properties of Steam, 5th Edition,
American Society of Mechanical Engineers, 1983. a
Muehlenbachs, K.: The alteration and aging of the
basaltic layer of the seafloor: Oxygen isotope evidence from DSDP/IPOD Legs 51, 52, and 53,
Int. Repts. DSDP, 51, 1159–1167, 1979. a
Muehlenbachs, K. and Clayton, R. N.: Oxygen
isotope composition of the oceanic crust and its bearing on seawater, J. Geophys. Res., 81,
4365–4369, https://doi.org/10.1029/JB081i023p04365, 1976. a, b, c
Muehlenbachs, K., Furnes, H., Fonneland, H. C.,
and Hellevang, B.: Ophiolites as faithful records of the oxygen isotope ratio of ancient seawater:
the Solund–Stavfjord Ophiolite Complex as a Late Ordovician example, Geol. Soc. Spec. Publ., 218,
401–414, https://doi.org/10.1144/GSL.SP.2003.218.01.20, 2003. a
Nielsen, M. E. and Fisk, M. R.: Surface area
measurements of marine basalts: Implications for the subseafloor microbial biomass,
Geophys. Res. Lett., 37, LI5604, https://doi.org/10.1029/2010GL044074, 2010. a
Norton, D. and Knight, J.: Transport phenomena in
hydrothermal systems: cooling plutons, Am. J. Sci., 277, 937–981, https://doi.org/10.2475/ajs.277.8.937,
1977. a
Norton, D. and Taylor, Jr., H. P.: Quantitative
simulation of the hydrothermal systems of crystallizing magmas on the basis of transport theory
and oxygen isotope data: An analysis of the Skaergaard intrusion, J. Petrol., 20, 421–486,
https://doi.org/10.1093/petrology/20.3.421, 1979. a, b, c
Perry, Jr., E. C., Ahmad, S. N., and Swulius, T. M.: The
oxygen isotope composition of 3,800 m.y. old metamorphosed chert and iron formation from Isukasia,
West Greenland, J. Geol., 86, 223–239, https://doi.org/10.1086/649676, 1978. a
Phipps Morgan, J.: Thermal and rare gas evolution of the
mantle, Chem. Geol., 145, 431–445, https://doi.org/10.1016/S0009-2541(97)00153-8, 1998. a, b
Schiffman, P. and Smith, B. M.: Petrology and
oxygen isotope geochemistry of a fossil seawater hydrothermal system within the Solea graben,
northern Troodos ophiolite, Cyprus, J. Geophys. Res., 93, 4612–4624,
https://doi.org/10.1029/JB093iB05p04612, 1988. a
Shemesh, A., Kolodny, Y., and Luz, B.: Oxygen isotope
variations in phosphate of biogenic apatites, II. Phosphorite rocks, Earth Planet. Sci. Lett., 64,
405–416, https://doi.org/10.1016/0012-821X(83)90101-2, 1983. a
Stakes, D. S.: Oxygen and hydrogen isotope compositions of oceanic
plutonic rocks: High-temperature deformation and metamorphism of oceanic layer 3, in: Stable
Isotope Geochemistry: A Tribute to Samuel Epstein, edited by: Taylor, H. P., O'Neil, J. R.,
Kaplan, I. R., The Geochemical Society,
77–90, 1991. a
Steefel, C. I. and Lasaga, A. C.: A coupled model for
transport of multiple chemical species and kinetic precipitation/dissolution reactions with
application to reactive flow in single phase hydrothermal systems, Am. J. Sci., 294, 529–592,
https://doi.org/10.2475/ajs.294.5.529, 1994. a, b, c, d
Stein, C. A. and Stein, S.: Constraints on hydrothermal
heat flux through the oceanic lithosphere from global heat flow, J. Geophys. Res., 99, 3081–3095,
https://doi.org/10.1029/93JB02222, 1994. a
Taylor, Jr., H. P.: Water∕rock interactions and the origin of
H2O in granitic batholiths, J. Geol. Soc. London, 133, 509–558,
https://doi.org/10.1144/gsjgs.133.6.0509, 1977. a
Vérard, C. and Veizer, J.: On plate tectonics
and ocean temperatures, Geology, 47, 881–885, https://doi.org/10.1130/G46376.1, 2019. a
Vibetti, N. J., Kerrich, R., and Fyfe, W. S.: Oxygen and
carbon isotope studies of hydrothermal alteration in the Troodos ophiolite complex, Cyprus,
Geol. Surv. Canada Spec. Pap., 88-9, 221–228, 1989. a
Walker, J. C. G. and Lohmann, K. C.: Why the oxygen
isotopic composition of sea water changes with time, Geophys. Res. Lett., 16, 323–326,
https://doi.org/10.1029/GL016i004p00323, 1989. a, b, c, d
Wallmann, K., Aloisi, G., Haeckel, M., Tishchenko, P.,
Pavlova, G., Greinert, J., Kutterolf, S., and Eisenhauer, A.: Silicate weathering in anoxic marine
sediments, Geochim. Cosmochim. Acta, 72, 3067–3090, https://doi.org/10.1016/j.gca.2008.03.026, 2008. a
Wolery, T. J. and Sleep, N. H.: Hydrothermal circulation
and geochemical flux at mid-ocean ridges, J. Geol., 84, 249–275, https://doi.org/10.1086/628195, 1976. a, b
Zhao, Z.-F. and Zheng, Y.-F.: Calculation of oxygen isotope
fractionation in magmatic rocks, Chem. Geol., 193, 59–80, https://doi.org/10.1016/S0009-2541(02)00226-7,
2003. a, b
Short summary
This study evaluates the buffering of seawater oxygen isotopes at midocean ridges, using a process-based model of hydrothermal circulation and reactive transport of oxygen isotopes. The buffering intensity shown by the model is significantly weaker than previously assumed. Oxygen isotopes of oceanic crust are consistently relatively insensitive to seawater isotopic composition, which explains the ancient oceanic crust without invoking a constant seawater oxygen–isotopic composition through time.
This study evaluates the buffering of seawater oxygen isotopes at midocean ridges, using a...