Biogeochemical cycle of chromium isotopes at the modern Earth's surface and its applications as a paleo-environment proxy
Chromium (Cr) is a redox-sensitive metal element with two natural oxidation states,
commonly as the soluble Cr (VI) oxyanion (CrO 4 2− or HCrO 4−) and the insoluble Cr (III) …
commonly as the soluble Cr (VI) oxyanion (CrO 4 2− or HCrO 4−) and the insoluble Cr (III) …
[HTML][HTML] Mechanisms of chromium isotope fractionation and the applications in the environment
Y Li, Y Huang, Z Li, X Tang, X Liu… - … and Environmental Safety, 2022 - Elsevier
Chromium (Cr) is a toxic heavy metal that gives rise to environmental pollution and human
risk. Chromium stable isotopes have a wide range of applications in both environmental field …
risk. Chromium stable isotopes have a wide range of applications in both environmental field …
Mesoproterozoic oxygenation event: From shallow marine to atmosphere
Oxygen availability is crucial for the evolution of eukaryotes in geological history, but the
redox conditions of the mid-Proterozoic atmospheric-oceanic system remain vigorously …
redox conditions of the mid-Proterozoic atmospheric-oceanic system remain vigorously …
[HTML][HTML] Strong positive fractionation of chromium isotopes in iron formation of the Jacadigo Group (Brazil)–A link to enhanced atmospheric oxygenation during the …
Cr isotopes recorded in iron formations (IF) are considered to have the potential to reflect the
isotope signatures in respective ambient surface seawater. The∼ 600 Ma Fe and Mn …
isotope signatures in respective ambient surface seawater. The∼ 600 Ma Fe and Mn …
[HTML][HTML] Shallow retardation of the strontium isotope signal of agricultural liming-implications for isoscapes used in provenance studies
An intensified debate centers on the use of strontium isotopes in surface water run-off as
archive for bioavailable signatures in prehistoric provenance studies. Its use has been …
archive for bioavailable signatures in prehistoric provenance studies. Its use has been …
A transient swing to higher oxygen levels in the atmosphere and oceans at~ 1.4 Ga
Abstract The mid-Proterozoic (1.8–0.8 Ga) may have witnessed persistent and predominant
anoxia at the Earth's surface. However, recent studies suggest that there was a period …
anoxia at the Earth's surface. However, recent studies suggest that there was a period …
[HTML][HTML] The link between surface water and groundwater-based drinking water–strontium isotope spatial distribution patterns and their relationships to Danish …
The hydrological relationship between surface waters and groundwaters in many regions of
the world is well known and the effects of their mutual interaction and interaction with the …
the world is well known and the effects of their mutual interaction and interaction with the …
[HTML][HTML] Combined cadmium and chromium isotopes record a collapse of bioproductivity across the Cretaceous—Paleogene boundary in the Danish basin
Cadmium (Cd) isotope signatures (δ 114 Cd) deduced from modern and ancient marine
deposits are often used as a proxy for bioproductivity and for micronutrient cycling, whereas …
deposits are often used as a proxy for bioproductivity and for micronutrient cycling, whereas …
Chromium isotope systematics and the diagenesis of marine carbonates
C Wang, CT Reinhard, KS Rybacki, DS Hardisty… - Earth and Planetary …, 2021 - Elsevier
Stable chromium (Cr) isotopes have emerged as a new tool for tracking broad-scale
changes in Earth's surface oxygen levels. Carbonates are one proposed sedimentary Cr …
changes in Earth's surface oxygen levels. Carbonates are one proposed sedimentary Cr …
Constraints on the volume and rate of Deccan Traps flood basalt eruptions using a combination of high-resolution terrestrial mercury records and geochemical box …
Deccan Traps continental flood basalt eruptions spanned the Cretaceous-Paleogene mass
extinction, erupting over a million cubic kilometers of basalt over a total duration of …
extinction, erupting over a million cubic kilometers of basalt over a total duration of …