INTRO

Our environment is shaped by the reactions that occur at the interface between the hydrosphere, atmosphere, and silicate Earth. My endeavors involve developing novel approaches in isotope geochemistry to study how environmental conditions are imprinted in the rock record through such reactions. I like to think about the following questions: What is the connection between the evolution of continental crust and the long-term changes in climate? What are the feedbacks between seawater dissolved content, atmospheric chemistry and the rock cycle? What are the formations, minerals and isotope systems that offer proxies for unreacted seawater or local precipitation?

My work focuses on O-isotope geochemistry including O-17, Precambrian geology and water-rock interaction. I routinely measure δD, δ17O and δ18O in sedimentary, igneous, and hydrothermally altered rocks to learn something new about the environment at the time. Normally, I like to study old (Precambrian) rocks because there are fewer reliable environmental proxies, thus, the world is less constrained, and the approaches must be creative. I also enjoy studying modern environments, be it altered oceanic crust, hydrothermal vent fluids or a geothermal plant.

PROJECTS

As a lead scientists, I have targeted:

On-going projects include using Secondary Ion Probe measurements of stable isotopes to answer questions in hydrothermal reactivity of seawater in oceanic crust, diagenetic maturation of cherts, triple O isotope geochemistry of terrestrial rocks, rock-water exchange experiments.

SHORT BIO AND CV

I did my undergraduate degree at the Russian State Geological Prospecting University in Moscow studying general and economic geology with specific focus on geochemistry and mineralogy of ore deposits. My PhD was done at the University of Oregon under supervision of Ilya Bindeman. For my postdoctoral research, I am investigating Archean sedimentary records at the SwissSIMS laboratory of the University of Lausanne. The analytical endeavors include laser fluorination, high-precision gas source mass spectrometery and secondary ion probe measurements. My field work has taken me to Russian Karelia, Scottish Highlands and Iceland. See my CV.

PUBLICATIONS

Authors Year Title Journal Volume Pages
Zakharov D.O., Lundstrom C.C., Laurent O., Reed M.H., and Bindeman I.N. in press Influence of high marine Ca/SO4 ratio on alteration of submarine basalts at 2.41 Ga documented by triple O and Sr isotopes of epidote Precambrian Research 358 106164
Zakharov D.O., Marin-Carbonne J., Alleon J. and Bindeman I.N. 2021 Temporal triple oxygen isotope trend recorded by Precambrian certs: A perspective from combined bulk and in situ secondary ion probe measurements. Reviews in Mineralogy & Geochemistry 86 323-365
Waterton P., Hyde W.R., Tusch J., Hollis J.A., Kirkland C.L., Kinney C., Yakymchuk C., Gardiner N.J., Zakharov D., Olierook H.K.H., Münker C., Lightfoot P.C. and Szilas K. 2020 Geodynamic implications of synchronous norite and TTG formation in the 3 Ga Maniitsoq Norite Belt, West Greenland. Frontiers in Earth Sciences 8 562062
Zakharov D.O., Bindeman I.N., Tanaka R., Fridleifsson G.O., Reed M.H. and Hampton R.L. 2019 Triple oxygen isotope systematics as a tracer of fluids in the crust: A study from modern geothermal systems of Iceland. Chemical Geology 530 119312
Zakharov D.O., Bindeman I.N., Serebryakov N.S., Prave A.R., Azimov P.Ya. and Babarina I.I. 2019 Low ?18O rocks in the Belomorian belt, NW Russia and Scourie dikes, NW Scotland: A record of ancient meteoric water captured by the early Paleoproterozoic global magic magmatism. Precambrian Research 333 105431
Zakharov D.O. and Bindeman I.N. 2019 Triple oxygen and hydrogen isotopic study of hydrothermally altered rocks from the 2.43-2.41 Ga Vetreny belt, Russia: An insight into the early Paleoproterozoic seawater. Geochimica Cosmochimica Acta 248 185-209
Bindeman I.N., Zakharov D.O., Palandri J., Greber N.D., Retallack G.J., Hofmann A., Dauphas N., Lackey J.S. and Bekker, A. 2018 Rapid growth of subaerial crust and the onset of a modern hydrologic cycle at the Archean-Proterozoic transition. Nature 557 545-548
Avice, G., Marty, B., Burgess, R., Hofmann, A., Philippot, P., Zahnle, K., and Zakharov, D. 2018 Evolution of atmospheric xenon and other noble gases inferred from Archean to Paleoproterozoic rocks. Geochimica Cosmochimica Acta 232 82-100
Zakharov D.O., Bindeman I.N., Slabunov A.I., Ovtcharova M., Coble M.A., Serebryakov N. S. and Schaltegger U. 2017 Dating the Paleoproterozoic snowball Earth glaciations using contemporaneous subglacial hydrothermal systems. Geology 45 5-8
Bindeman I.N., Bekker, A. and Zakharov D.O. 2016 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
Khisamutdinova A.I., Zakharov D.O. and Soloviev A.V. 2015 The Western Kamchatka sedimentary basins: origin, age and composition of basal conglomerates (in Russian). Russian Journal of Pacific Geology 34 78-92
Onikienko L.D., Uganov, S.S., Zakharov D.O. and Ivanov, M.A. 2012 Geology, mineralogy and formation conditions “Oskolskiy” gold-bearing conglomerates from Kursk Magnetic Anomaly (in Russian). Razvedka i Ohrana Nedr 12 3-7

SIDE PROJECTS

A few projects conducted in my spare time are listed below:
Adularia: A web-based application that calculates mineral formula based on EMPA analyses
A Shiny app that visualizes elemental maps in the Vetreny belt sample of hydrothermally altered komatiitic basalt (takes a while to load).
Oxygen isotope cheahsheet is a pdf/ppt file with oxygen isotope delta-notations, ranges, standardizations, fractionation factors, meteoric water cycle, etc.