Barium isotope fractionation in the global barium cycle: First evidence from barium minerals and precipitation experiments
K von Allmen, ME Böttcher, E Samankassou… - Chemical Geology, 2010 - Elsevier
In this study, we present first results from an ongoing investigation on the stable barium (Ba)
isotope fractionation in the natural barium cycle. Stable Ba isotope signatures of …
isotope fractionation in the natural barium cycle. Stable Ba isotope signatures of …
Frontiers of stable isotope geoscience
Isotope geochemistry is in the midst of a remarkable period of innovation and discovery; the
last decade (or so) has seen the emergence of 'nontraditional'stable isotopes of metals (ie …
last decade (or so) has seen the emergence of 'nontraditional'stable isotopes of metals (ie …
Equilibrium fractionation of non-traditional isotopes: a molecular modeling perspective
M Blanchard, E Balan… - Reviews in Mineralogy …, 2017 - pubs.geoscienceworld.org
The isotopic compositions of natural materials are determined by their parent reservoirs, on
the one hand, and by fractionation mechanisms, on the other hand. Under the right …
the one hand, and by fractionation mechanisms, on the other hand. Under the right …
Precipitation of barite by marine bacteria: A possible mechanism for marine barite formation
MT Gonzalez-Muñoz, F Martinez-Ruiz… - …, 2012 - pubs.geoscienceworld.org
Barite (BaSO4) is found throughout the ocean, yet seawater is undersaturated with respect
to barite, and organisms that could account for the abundance of barite have not yet been …
to barite, and organisms that could account for the abundance of barite have not yet been …
First-principles investigations of equilibrium calcium isotope fractionation between clinopyroxene and Ca-doped orthopyroxene
Equilibrium fractionation factors of Ca isotopes among mantle minerals are essential for
using Ca isotopes as an important tracer in mantle geochemistry. Using the vibrational …
using Ca isotopes as an important tracer in mantle geochemistry. Using the vibrational …
Constraining the cause of the end-Guadalupian extinction with coupled records of carbon and calcium isotopes
A negative δ C 13 excursion in carbonate sediments near the Guadalupian/Lopingian
(Middle/Late Permian) boundary has been interpreted to have resulted from a large carbon …
(Middle/Late Permian) boundary has been interpreted to have resulted from a large carbon …
First-principles investigation of equilibrium K isotope fractionation among K-bearing minerals
The 41 K/39 K reduced partition function ratios, 10 3 lnβ, of 17 major K-bearing minerals
have been calculated using the density functional theory (DFT) method. Their 10 3 lnβ …
have been calculated using the density functional theory (DFT) method. Their 10 3 lnβ …
Calcium isotope ratios in animal and human bone
LM Reynard, GM Henderson, REM Hedges - Geochimica et Cosmochimica …, 2010 - Elsevier
Calcium isotopes in tissues are thought to be influenced by an individual's diet, reflecting
parameters such as trophic level and dairy consumption, but this has not been carefully …
parameters such as trophic level and dairy consumption, but this has not been carefully …
A dynamic marine calcium cycle during the past 28 million years
Multiple lines of evidence have shown that the isotopic composition and concentration of
calcium in seawater have changed over the past 28 million years. A high-resolution …
calcium in seawater have changed over the past 28 million years. A high-resolution …
Metal-ion partitioning during low-temperature precipitation and dissolution of anhydrous carbonates and sulphates
ME Böttcher, M Dietzel - 2011 - pubs.geoscienceworld.org
Anhydrous carbonate and sulphate-bearing solids are formed on Earth under very different
environmental conditions and are the most abundant constituents in so-called chemical …
environmental conditions and are the most abundant constituents in so-called chemical …