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 …

Expanding the role of reactive transport models in critical zone processes

L Li, K Maher, A Navarre-Sitchler, J Druhan, C Meile… - Earth-science …, 2017 - Elsevier
Abstract Models test our understanding of processes and can reach beyond the spatial and
temporal scales of measurements. Multi-component Reactive Transport Models (RTMs) …

[HTML][HTML] The continental Si cycle and its impact on the ocean Si isotope budget

PJ Frings, W Clymans, G Fontorbe, L Christina… - Chemical …, 2016 - Elsevier
The silicon isotope composition of biogenic silica (δ 30 Si BSi) in the ocean is a function of
the δ 30 Si of the available dissolved Si (DSi; H 2 SiO 4), the degree of utilisation of the …

A review of the stable isotope bio-geochemistry of the global silicon cycle and its associated trace elements

JN Sutton, L André, D Cardinal, DJ Conley… - Frontiers in Earth …, 2018 - frontiersin.org
Silicon (Si) is the second most abundant element in the Earth's crust and is an important
nutrient in the ocean. The global Si cycle plays a critical role in regulating primary …

Antimony Isotope Fractionation during Adsorption on Iron (Oxyhydr) oxides

J Luo, X **e, J Shi, Y Wang - Environmental Science & …, 2023 - ACS Publications
The fate of antimony (Sb) is strongly affected by adsorption, yet Sb isotope fractionation and
the associated mechanism have not been widely reported. Here we experimentally …

[HTML][HTML] Metal stable isotopes fractionation during adsorption

Z Li, Y Huang, L Jiang, H Tang, G Jiao, H Gou… - Ecotoxicology and …, 2024 - Elsevier
Isotope technology is an ideal tool for tracing the sources of certain pollutants or providing
insights into environmental processes. In recent years, the advent of multi-collector …

Stable silicon isotope signatures of marine pore waters–Biogenic opal dissolution versus authigenic clay mineral formation

C Ehlert, K Doering, K Wallmann, F Scholz… - … et Cosmochimica Acta, 2016 - Elsevier
Dissolved silicon isotope compositions have been analysed for the first time in pore waters
(δ 30 Si PW) of three short sediment cores from the Peruvian margin upwelling region with …

Silicon isotope geochemistry

F Poitrasson - Reviews in Mineralogy and Geochemistry, 2017 - pubs.geoscienceworld.org
In contrast to many other stable isotopes of the elements discussed in this book, those of
silicon are not strictly speaking “Non-Traditional Stable Isotopes” because they have been …

Identifying nitrate sources in surface water, regolith and groundwater in a subtropical red soil Critical Zone by using dual nitrate isotopes

H Wu, Y Dong, L Gao, X Song, F Liu, X Peng… - Catena, 2021 - Elsevier
Nitrate contamination of water bodies is a serious concern in regions with intensive
agriculture. Previous studies, which only considered surface water and groundwater but not …

Serpentine alteration as source of high dissolved silicon and elevated δ30Si values to the marine Si cycle

S Geilert, P Grasse, K Wallmann, V Liebetrau… - Nature …, 2020 - nature.com
Serpentine alteration is recognized as an important process for element cycling, however,
related silicon fluxes are unknown. Pore fluids from serpentinite seamounts sampled in the …