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 …

[图书][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 …

The geochemistry of carbonate diagenesis: The past, present and future

PK Swart - Sedimentology, 2015 - Wiley Online Library
Stable carbon and oxygen isotopes (δ18O and δ13C values) and trace elements have been
applied to the study of diagenesis of carbonate rocks for over 50 years. As valuable as these …

Magnesium stable isotope fractionation in marine biogenic calcite and aragonite

F Wombacher, A Eisenhauer, F Böhm… - … et Cosmochimica Acta, 2011 - Elsevier
This survey of magnesium stable isotope compositions in marine biogenic aragonite and
calcite includes samples from corals, sclerosponges, benthic porcelaneous and planktonic …

[图书][B] Environmental isotopes in biodegradation and bioremediation

CM Aelion, P Höhener, D Hunkeler, R Aravena - 2009 - taylorfrancis.com
Enhanced analytical capabilities and separation techniques, improved detection limits, and
accessibility of instrumentation have led to massive strides in the use of isotopes to assess …

Global Ca cycles: coupling of continental and oceanic processes

N Gussone, AD Schmitt, A Heuser… - Calcium stable isotope …, 2016 - Springer
Calcium is one of the most important mobile metals that can migrate easily between major
geochemical reservoirs at the Earth's surface; the hydrosphere and the biosphere and crust …

Strontium isotope fractionation of planktic foraminifera and inorganic calcite

F Böhm, A Eisenhauer, J Tang, M Dietzel… - … et Cosmochimica Acta, 2012 - Elsevier
We have investigated the strontium isotope fractionation (Δ88/86Srcarb–aq) between
inorganic calcite and aqueous Sr2+ ions by precipitation experiments at a constant …

Calcium isotope ratios of malformed foraminifera reveal biocalcification stress preceded Oceanic Anoxic Event 2

GD Kitch, AD Jacobson, BB Sageman… - … Earth & Environment, 2022 - nature.com
Ocean acidification causes biocalcification stress. The calcium isotope composition of
carbonate producers can archive such stress because calcium isotope fractionation is …

Precise magnesium isotope measurements in core top planktic and benthic foraminifera

PAE Pogge von Strandmann - Geochemistry, Geophysics …, 2008 - Wiley Online Library
This study presents a new methodology to obtain highly precise measurements (±0.1‰) of
magnesium isotope ratios in very small samples of foraminiferal carbonate (40–50 μg). Here …

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 …