Benjamin Eickmann
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View article: Atmospheric oxygenation at the onset of Earth’s Great Oxidation forced enhanced marine anoxia
Atmospheric oxygenation at the onset of Earth’s Great Oxidation forced enhanced marine anoxia Open
Capturing the loss of mass-independent sulphur isotope fractionation (MIF-S), the correlative South African Duitschland and Rooihoogte formations are widely held to bear the isotopic fingerprint of the first atmospheric oxygenation at the …
View article: Evidence for contemporaneous deposition of the Duitschland and Rooihoogte formations (Transvaal Supergroup): Implications for tempo and mode of Earth’s Great Oxidation
Evidence for contemporaneous deposition of the Duitschland and Rooihoogte formations (Transvaal Supergroup): Implications for tempo and mode of Earth’s Great Oxidation Open
View article: Linking atmospheric oxygenation to marine deoxygenation during Earth’s Great Oxidation
Linking atmospheric oxygenation to marine deoxygenation during Earth’s Great Oxidation Open
View article: A multiple sulfur record of super-large volcanic eruptions in Archaean pyrite nodules
A multiple sulfur record of super-large volcanic eruptions in Archaean pyrite nodules Open
Archaean supracrustal rocks carry a record of mass-independently fractionated S that is interpreted to be derived from UV-induced photochemical reactions in an oxygen-deficient atmosphere. Experiments with photochemical reactions of SO2 ga…
View article: Moderate levels of oxygenation during the late stage of Earth's Great Oxidation Event
Moderate levels of oxygenation during the late stage of Earth's Great Oxidation Event Open
View article: Single pulse of significant O<sub>2</sub> increase during the Great Oxidation Event – geochemical, isotopic and stratigraphic evidence from the Duitschland and Rooihoogte formations (South Africa)
Single pulse of significant O<sub>2</sub> increase during the Great Oxidation Event – geochemical, isotopic and stratigraphic evidence from the Duitschland and Rooihoogte formations (South Africa) Open
View article: Extreme fractionation of selenium isotopes and possible deep biospheric origin of platinum nuggets from Minas Gerais, Brazil
Extreme fractionation of selenium isotopes and possible deep biospheric origin of platinum nuggets from Minas Gerais, Brazil Open
Platinum-rich nuggets offer an opportunity for understanding how precious metals accumulate. We analyzed the selenium (Se) isotopic composition of Se-rich (102–103 µg g−1) platinum-palladium (Pt-Pd) nuggets from a recent placer deposit in …
View article: Shallow-marine serpentinization-derived fluid seepage in the Upper Cretaceous Qahlah Formation, United Arab Emirates
Shallow-marine serpentinization-derived fluid seepage in the Upper Cretaceous Qahlah Formation, United Arab Emirates Open
Serpentinization of ultramafic rocks in the sea and on land leads to the generation of alkaline fluids rich in molecular hydrogen (H 2 ) and methane (CH 4 ) that favour the formation of carbonate mineralization, such as veins in the sub-se…
View article: Limited oxygen production in the Mesoarchean ocean
Limited oxygen production in the Mesoarchean ocean Open
Significance Episodic development of “oxygen oases” during the Archean Eon characterizes the hundreds of millions of years transition to permanent oxygenation in the atmosphere–hydrosphere system at the Great Oxidation Event (∼2.4–2.3 Ga).…
View article: An atmospheric source of S in Mesoarchaean structurally-controlled gold mineralisation of the Barberton Greenstone Belt
An atmospheric source of S in Mesoarchaean structurally-controlled gold mineralisation of the Barberton Greenstone Belt Open