SearchSkip to Search Results
At the precipice of the Great Oxygen Crash: Redox-sensitive metal geochemistry in the Paleoproterozoic Onega BasinDownload
The middle Paleoproterozoic era (~2200–1800 million years ago) was host to some of the most significant perturbations in Earth’s elemental cycles, including the largest ever excursion of carbon isotope ratios in sedimentary rocks, known as the Lomagundi-Jatuli Event. This event has been linked to...
Banded iron formations (BIF) are a key chemical sedimentary record for examining the evolution of the early oceans, atmosphere, and biosphere. While the classic model suggests that BIF were deposited by either anoxygenic photoferrotrophs or oxygen producing cyanobacteria, recent studies have...
Surface mining in the Athabasca Oil Sands region has disturbed approximately 895 km2 of boreal forest, all of which will need to be reclaimed to a state that is both representative of, and as productive of the surrounding boreal forest. However, much remains to be understood regarding the effects...