The biogeochemistry of ferruginous lakes and past ferruginous oceans
Anoxic and iron-rich (ferruginous) conditions prevailed in the ocean under the low-oxygen
atmosphere that occurred through most of the Archean Eon. While euxinic conditions (ie …
atmosphere that occurred through most of the Archean Eon. While euxinic conditions (ie …
Rhyacian intermittent large igneous provinces sustained Great Oxidation Event: evidence from North China craton
To better understand the sustaining mechanism of the Great Oxidation Event (GOE), strata
and igneous suites especially large igneous provinces (LIPs) during the GOE's late stage …
and igneous suites especially large igneous provinces (LIPs) during the GOE's late stage …
Nitrate limitation in early Neoproterozoic oceans delayed the ecological rise of eukaryotes
The early Neoproterozoic Era witnessed the initial ecological rise of eukaryotes at ca. 800
Ma. To assess whether nitrate availability played an important role in this evolutionary event …
Ma. To assess whether nitrate availability played an important role in this evolutionary event …
Radiation of nitrogen‐metabolizing enzymes across the tree of life tracks environmental transitions in Earth history
C Parsons, EE Stüeken, CJ Rosen, K Mateos… - …, 2021 - Wiley Online Library
Nitrogen is an essential element to life and exerts a strong control on global biological
productivity. The rise and spread of nitrogen‐utilizing microbial metabolisms profoundly …
productivity. The rise and spread of nitrogen‐utilizing microbial metabolisms profoundly …
Nitrogen cycling during the peak Cambrian explosion
Previous studies on early-Cambrian nitrogen (N) cycle suggested a modern-type nitrogen
reservoir with elevated nitrate (NO 3−) availability in a globally oxygenated ocean for the …
reservoir with elevated nitrate (NO 3−) availability in a globally oxygenated ocean for the …
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 …
Nitrogen isotopic compositions of organic-rich shales (∼ 560 Ma) in the Chengkou region, South China: Implications for a stable and relatively large nitrate reservoir …
J Wu, W Jia - Journal of Asian Earth Sciences, 2024 - Elsevier
The late Ediacaran period is a critical transitional period in Earth's history, marked by the
evolution of the Ediacara biota (∼ 574 to 538.8 Ma). The marine redox state and nutrient …
evolution of the Ediacara biota (∼ 574 to 538.8 Ma). The marine redox state and nutrient …
[HTML][HTML] Moderate levels of oxygenation during the late stage of Earth's Great Oxidation Event
The later stages of Earth's transition to a permanently oxygenated atmosphere during the
Great Oxidation Event (GOE;∼ 2.43–2.06 Ga) is commonly linked with the suggestion of an …
Great Oxidation Event (GOE;∼ 2.43–2.06 Ga) is commonly linked with the suggestion of an …
Exploring the effects of residence time on the utility of stable isotopes and S/C ratios as proxies for ocean connectivity
Various geochemical proxies have been developed to determine if ancient sedimentary
strata were deposited in marine or nonmarine environments. A critical parameter for proxy …
strata were deposited in marine or nonmarine environments. A critical parameter for proxy …
[PDF][PDF] Phylogenomic evidence for the origin of obligate anaerobic anammox bacteria around the great oxidation event
The anaerobic ammonium oxidation (anammox) bacteria can transform ammonium and
nitrite to dinitrogen gas, and this obligate anaerobic process accounts for up to half of the …
nitrite to dinitrogen gas, and this obligate anaerobic process accounts for up to half of the …