Manganese oxides, Earth surface oxygenation, and the rise of oxygenic photosynthesis
Oxygenic photosynthesis is arguably the most important biological innovation in Earth's
history, facilitating the transition to a habitable planet for complex life. Dating the emergence …
history, facilitating the transition to a habitable planet for complex life. Dating the emergence …
Laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) U–Pb carbonate geochronology: strategies, progress, and limitations
Laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) U–Pb
geochronology of carbonate minerals, calcite in particular, is rapidly gaining popularity as an …
geochronology of carbonate minerals, calcite in particular, is rapidly gaining popularity as an …
Earth's surface oxygenation and the rise of eukaryotic life: Relationships to the Lomagundi positive carbon isotope excursion revisited
The availability of molecular oxygen shapes the size and structure of Earth's biosphere.
Geological and geochemical records imply that, for most of the Precambrian (the entirety of …
Geological and geochemical records imply that, for most of the Precambrian (the entirety of …
The Great Oxygenation Event as a consequence of ecological dynamics modulated by planetary change
Abstract The Great Oxygenation Event (GOE), ca. 2.4 billion years ago, transformed life and
environments on Earth. Its causes, however, are debated. We mathematically analyze the …
environments on Earth. Its causes, however, are debated. We mathematically analyze the …
The paleoenvironmental implications of pre-Great Oxidation Event manganese deposition in the Mesoarchean Ijzermijn Iron Formation Bed, Mozaan Group, Pongola …
AJB Smith, NJ Beukes - Precambrian Research, 2023 - Elsevier
Abstract The Ijzermijn Iron Formation Bed occurs in the Vlakhoek Member of the basal
Sinqeni Formation of the Mesoarchean Mozaan Group of the Pongola Supergroup of …
Sinqeni Formation of the Mesoarchean Mozaan Group of the Pongola Supergroup of …
[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 …
Post-depositional REE mobility in a Paleoarchean banded iron formation revealed by La-Ce geochronology: A cautionary tale for signals of ancient oxygenation
Precambrian banded iron formations (BIF) are chemical sedimentary deposits whose trace
element signatures have been widely used to interrogate the chemical composition and …
element signatures have been widely used to interrogate the chemical composition and …
Depositional age and formation conditions of Archean banded iron formations, Bundelkhand Craton, Central India: Geochemistry, neodymium isotopes and U-Pb …
In this study, we present major and trace element concentrations, U-Pb zircon
geochronology as well as neodymium isotopic compositions of the banded iron formations …
geochronology as well as neodymium isotopic compositions of the banded iron formations …
Weathering, alteration and reconstructing Earth's oxygenation
Deciphering the role—if any—that free oxygen levels played in controlling the timing and
tempo of the radiation of complex life is one of the most fundamental questions in Earth and …
tempo of the radiation of complex life is one of the most fundamental questions in Earth and …
Manganese carbonate-bearing mudstone of the Witwatersrand-Mozaan succession in southern Africa as evidence for bacterial manganese respiration and availability …
Abstract The Mesoarchaean (2.96 to 2.91 Ga) Witwatersrand-Mozaan succession of
southern Africa contains multiple units that show evidence for the presence of free molecular …
southern Africa contains multiple units that show evidence for the presence of free molecular …