Metal stable isotope signatures as tracers in environmental geochemistry

JG Wiederhold - Environmental science & technology, 2015 - ACS Publications
The biogeochemical cycling of metals in natural systems is often accompanied by stable
isotope fractionation which can now be measured due to recent analytical advances. In …

Mercury isotopes in earth and environmental sciences

JD Blum, LS Sherman… - Annual Review of Earth …, 2014 - annualreviews.org
Virtually all biotic, dark abiotic, and photochemical transformations of mercury (Hg) produce
Hg isotope fractionation, which can be either mass dependent (MDF) or mass independent …

[書籍][B] Stable isotope geochemistry

J Hoefs, J Hoefs - 2009 - Springer
The nine editions of Stable Isotope Geochemistry have appeared over a time span of nearly
50 years. The first edition (1973) appeared as a slim book of 135 pages. Due to the rapid …

Mercury isotopes in a forested ecosystem: Implications for air‐surface exchange dynamics and the global mercury cycle

JD Demers, JD Blum, DR Zak - Global Biogeochemical Cycles, 2013 - Wiley Online Library
Forests mediate the biogeochemical cycling of mercury (Hg) between the atmosphere and
terrestrial ecosystems; however, there remain many gaps in our understanding of these …

Marine biogeochemical cycling of mercury

WF Fitzgerald, CH Lamborg… - Chemical …, 2007 - ACS Publications
In Walden, Thoreau1 noted that “the largest pond is as sensitive to atmospheric changes as
the globule of mercury in its tube”. Here, we consider the modern understanding of the …

Mass-dependent and-independent fractionation of Hg isotopes by photoreduction in aquatic systems

BA Bergquist, JD Blum - Science, 2007 - science.org
Mercury (Hg) isotopes can be used as tracers of Hg biogeochemical pathways in the
environment. The photochemical reduction of aqueous Hg species by natural sunlight leads …

Reporting of variations in the natural isotopic composition of mercury

JD Blum, BA Bergquist - Analytical and bioanalytical chemistry, 2007 - Springer
High-precision measurements of natural variations in the stable isotopic composition of
mercury show great promise as a new tracer of mercury sources and chemical …

Role of nuclear volume in driving equilibrium stable isotope fractionation of mercury, thallium, and other very heavy elements

EA Schauble - Geochimica et Cosmochimica Acta, 2007 - Elsevier
Equilibrium stable isotope fractionations of mercury and thallium are estimated for
molecules, atoms and ions using first-principles vibrational frequency and electronic …

Isotopic composition and fractionation of mercury in Great Lakes precipitation and ambient air

LE Gratz, GJ Keeler, JD Blum… - Environmental Science & …, 2010 - ACS Publications
Atmospheric deposition is a primary pathway by which mercury (Hg) enters terrestrial and
aquatic ecosystems; however, the chemical and meteorological processes that Hg …

Mercury isotope fractionation during photoreduction in natural water is controlled by its Hg/DOC ratio

W Zheng, H Hintelmann - Geochimica et Cosmochimica Acta, 2009 - Elsevier
Photoreduction of Hg in natural water plays a crucial role in the production of elemental Hg
and its biogeochemical cycle. Solar irradiation and dissolved organic carbon (DOC) in water …