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 …

Uranium isotope fractionation

MB Andersen, CH Stirling… - Reviews in Mineralogy …, 2017 - pubs.geoscienceworld.org
This review focuses on the rapidly growing field of natural 238U/235U variability, largely
driven by the technical advances in the measurement of U isotope ratios by mass …

[KÖNYV][B] Earth history and palaeogeography

TH Torsvik, LRM Cocks - 2017 - books.google.com
Using full-colour palaeogeographical maps from the Cambrian to the present, this
interdisciplinary volume explains how plate motions and surface volcanism are linked to …

[KÖNYV][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 …

Mass fractionation laws, mass-independent effects, and isotopic anomalies

N Dauphas, EA Schauble - Annual Review of Earth and …, 2016 - annualreviews.org
Isotopic variations usually follow mass-dependent fractionation, meaning that the relative
variations in isotopic ratios scale with the difference in mass of the isotopes involved (eg …

Uranium isotopic compositions of the crust and ocean: Age corrections, U budget and global extent of modern anoxia

FLH Tissot, N Dauphas - Geochimica et Cosmochimica Acta, 2015 - Elsevier
The 238 U/235 U isotopic composition of uranium in seawater can provide important insights
into the modern U budget of the oceans. Using the double spike technique and a new data …

Subduction erosion and arc volcanism

SM Straub, A Gómez-Tuena, P Vannucchi - Nature Reviews Earth & …, 2020 - nature.com
Tectonic or subduction erosion refers to the removal of upper-plate material from the forearc
at convergent margins. Subduction erosion has been suggested to represent a major …

A record of deep-ocean dissolved O2 from the oxidation state of iron in submarine basalts

DA Stolper, CB Keller - Nature, 2018 - nature.com
The oxygenation of the deep ocean in the geological past has been associated with a rise in
the partial pressure of atmospheric molecular oxygen (O2) to near-present levels and the …

Global marine redox evolution from the late Neoproterozoic to the early Paleozoic constrained by the integration of Mo and U isotope records

GY Wei, NJ Planavsky, T He, F Zhang, RG Stockey… - Earth-Science …, 2021 - Elsevier
The emergence and diversification of early animals is commonly thought to have coincided
with atmosphere and ocean oxygenation across the terminal Neoproterozoic and early …

Uranium isotope evidence for two episodes of deoxygenation during Oceanic Anoxic Event 2

MO Clarkson, CH Stirling, HC Jenkyns… - Proceedings of the …, 2018 - pnas.org
Oceanic Anoxic Event 2 (OAE 2), occurring∼ 94 million years ago, was one of the most
extreme carbon cycle and climatic perturbations of the Phanerozoic Eon. It was typified by a …