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 …

Calcium isotopes in the global biogeochemical Ca cycle: Implications for development of a Ca isotope proxy

MS Fantle, ET Tipper - Earth-Science Reviews, 2014 - Elsevier
At the Earth's surface, calcium (Ca) is a critical element at a variety of scales: it is soluble in
natural waters, a biological nutrient, and a major constituent of the dominant mineral sink for …

[HTML][HTML] Silicate versus carbonate weathering in Iceland: New insights from Ca isotopes

AD Jacobson, MG Andrews, GO Lehn… - Earth and Planetary …, 2015 - Elsevier
Several studies have measured riverine fluxes of Ca and carbonate alkalinity in Iceland with
the aim of quantifying the role of basalt weathering in the long-term carbon cycle. A major …

Ca, Sr and Ba stable isotopes reveal the fate of soil nutrients along a tropical climosequence in Hawaii

T Bullen, O Chadwick - Chemical Geology, 2016 - Elsevier
Nutrient biolifting is an important pedogenic process in which plant roots obtain inorganic
nutrients such as phosphorus (P) and calcium (Ca) from minerals at depth and concentrate …

Mass‐independent and mass‐dependent Ca isotopic compositions of thirteen geological reference materials measured by thermal ionisation mass spectrometry

Y He, Y Wang, C Zhu, S Huang… - Geostandards and …, 2017 - Wiley Online Library
We report mass‐independent and mass‐dependent Ca isotopic compositions for thirteen
geological reference materials, including carbonates (NIST SRM 915a and 915b), Atlantic …

Temporal evolution of δ44/40Ca and 87Sr/86Sr of carbonatites: Implications for crustal recycling through time

A Banerjee, R Chakrabarti, A Simonetti - Geochimica et Cosmochimica Acta, 2021 - Elsevier
Carbonatites are igneous rocks composed of over 50% modal carbonate minerals and their
exact origin and possible mode (s) of formation are still debated. We report stable Ca …

[HTML][HTML] Processes controlling the stable isotope compositions of Li, B, Mg and Ca in plants, soils and waters: A review

AD Schmitt, N Vigier, D Lemarchand, R Millot… - Comptes Rendus …, 2012 - Elsevier
Li, B, Mg and Ca isotopes became of increasing interest during the last decade due to their
potential for better constraining the carbon cycle and nutrient cycling. At the soil-water-plant …

Calcium isotopes in deep time: Potential and limitations

N Gussone, ASC Ahm, KV Lau, HJ Bradbury - Chemical Geology, 2020 - Elsevier
Calcium is an essential element in the biogeochemical cycles that regulate the long-term
climate state of Earth. The removal of CO 2 from the ocean-atmosphere system is controlled …

Calcium isotope fractionation during crustal melting and magma differentiation: Granitoid and mineral-pair perspectives

Y Wang, Y He, H Wu, C Zhu, S Huang… - … et Cosmochimica Acta, 2019 - Elsevier
In order to investigate Ca isotope fractionation during crustal melting and magma
differentiation, we report high-precision Ca isotopic data of 17 well-characterized granitoids …

Tracking the relationship between mountain uplift, silicate weathering, and long-term CO2 consumption with Ca isotopes: Southern Alps, New Zealand

J Moore, AD Jacobson, C Holmden, D Craw - Chemical Geology, 2013 - Elsevier
Mountain uplift is frequently invoked as a mechanism that accelerates atmospheric CO2
consumption by chemical weathering, thereby cooling climate over geological timescales …