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 …

Stable isotope fractionation of metals and metalloids in plants: a review

M Wiggenhauser, RET Moore, P Wang… - Frontiers in plant …, 2022 - frontiersin.org
This work critically reviews stable isotope fractionation of essential (B, Mg, K, Ca, Fe, Ni, Cu,
Zn, Mo), beneficial (Si), and non-essential (Cd, Tl) metals and metalloids in plants. The …

Pedogenic processes in loess-paleosol sediments: Clues from Li isotopes of leachate in Luochuan loess

MY He, JB Dong, Z Jin, CY Liu, J Xiao, F Zhang… - … et Cosmochimica Acta, 2021 - Elsevier
Tracing pedogenic processes is fundamental for reconstructing climatic and environmental
changes using loess deposits. Lithium isotopes can serve as a sensitive tracer to unravel …

Experimental investigation of lithium isotope fractionation during kaolinite adsorption: Implications for chemical weathering

W Li, XM Liu - Geochimica et Cosmochimica Acta, 2020 - Elsevier
The feedback between CO 2 sources and sinks through chemical weathering is one of the
important reasons why Earth has maintained a habitable climate for over four billion years …

The influence of temperature, pH, and growth rate on the δ18O composition of inorganically precipitated calcite

JM Watkins, JD Hunt, FJ Ryerson… - Earth and Planetary …, 2014 - Elsevier
The oxygen isotope composition of carbonate minerals varies with temperature as well as
other environmental variables. For carbonates that precipitate slowly, under conditions that …

Barium-isotopic fractionation in seawater mediated by barite cycling and oceanic circulation

TJ Horner, CW Kinsley, SG Nielsen - Earth and Planetary Science Letters, 2015 - Elsevier
The marine biogeochemical cycle of Ba is thought to be controlled by particulate BaSO 4
(barite) precipitation associated with the microbial oxidation of organic carbon and its …

Cadmium isotope fractionation during adsorption to Mn oxyhydroxide at low and high ionic strength

LE Wasylenki, JW Swihart, SJ Romaniello - Geochimica et Cosmochimica …, 2014 - Elsevier
We report results of experiments conducted to quantify the sense and magnitude of
cadmium stable isotope fractionation during sorption to synthetic birnessite (Mn …

Potassium isotopic heterogeneity in subducting oceanic plates

Y Hu, FZ Teng, T Plank, C Chauvel - Science Advances, 2020 - science.org
Oceanic crust and sediments are the primary K sinks for seawater, and they deliver
considerable amounts of K to the mantle via subduction. Historically, these crustal …

Kinetic fractionation of non-traditional stable isotopes by diffusion and crystal growth reactions

JM Watkins, DJ DePaolo… - Reviews in Mineralogy …, 2017 - pubs.geoscienceworld.org
Natural variations in the isotopic composition of some 50 chemical elements are now being
used in geochemistry for studying transport processes, estimating temperature …

Uranium isotope fractionation by abiotic reductive precipitation

ST Brown, A Basu, X Ding… - Proceedings of the …, 2018 - National Acad Sciences
Significant uranium (U) isotope fractionation has been observed during abiotic reduction of
aqueous U, counter to the expectation that uranium isotopes are only fractionated by …