Oxygenation, life, and the planetary system during Earth's middle history: An overview
The long history of life on Earth has unfolded as a cause-and-effect relationship with the
evolving amount of oxygen (O2) in the oceans and atmosphere. Oxygen deficiency …
evolving amount of oxygen (O2) in the oceans and atmosphere. Oxygen deficiency …
On the co‐evolution of surface oxygen levels and animals
Few topics in geobiology have been as extensively debated as the role of Earth's
oxygenation in controlling when and why animals emerged and diversified. All currently …
oxygenation in controlling when and why animals emerged and diversified. All currently …
The geologic history of primary productivity
The rate of primary productivity is a keystone variable in driving biogeochemical cycles
today and has been throughout Earth's past. 1 For example, it plays a critical role in …
today and has been throughout Earth's past. 1 For example, it plays a critical role in …
A Cenozoic Record of Deep Oceanic Zn Isotopic Composition in Ferromanganese Crusts
Water plays a critical role in erosion and sediment transport and this relationship is most
evident in the hyperarid Atacama Desert of Northern Chile, a region characterized by …
evident in the hyperarid Atacama Desert of Northern Chile, a region characterized by …
[HTML][HTML] Sedimentary cycling of zinc and nickel and their isotopes on an upwelling margin: Implications for oceanic budgets and paleoenvironment proxies
Zinc and Ni are essential micronutrients whose stable isotope systematics in marine
sediments represent promising, but still develo**, tracers of past ocean chemistry and …
sediments represent promising, but still develo**, tracers of past ocean chemistry and …
Marine biogeochemical nitrogen cycling through Earth's history
Earth's marine nitrogen cycle has co-evolved with life and redox conditions over geological
time. In this Review, we provide an account of nitrogen cycling in the world's oceans over the …
time. In this Review, we provide an account of nitrogen cycling in the world's oceans over the …
Free and kerogen‐bound biomarkers from late Tonian sedimentary rocks record abundant eukaryotes in mid‐Neoproterozoic marine communities
JA Zumberge, D Rocher, GD Love - Geobiology, 2020 - Wiley Online Library
Lipid biomarker assemblages preserved within the bitumen and kerogen phases of
sedimentary rocks from the ca. 780–729 Ma Chuar and Visingsö Groups facilitate …
sedimentary rocks from the ca. 780–729 Ma Chuar and Visingsö Groups facilitate …
A largely invariant marine dissolved organic carbon reservoir across Earth's history
Marine dissolved organic carbon (DOC), the largest pool of reduced carbon in the oceans,
plays an important role in the global carbon cycle and contributes to the regulation of …
plays an important role in the global carbon cycle and contributes to the regulation of …
Insights into eukaryogenesis from the fossil record
SM Porter - Interface Focus, 2020 - royalsocietypublishing.org
Eukaryogenesis—the process by which the eukaryotic cell emerged—has long puzzled
scientists. It has been assumed that the fossil record has little to say about this process, in …
scientists. It has been assumed that the fossil record has little to say about this process, in …
Bioactive trace metals and their isotopes as paleoproductivity proxies: An assessment using GEOTRACES‐era data
Phytoplankton productivity and export sequester climatically significant quantities of
atmospheric carbon dioxide as particulate organic carbon through a suite of processes …
atmospheric carbon dioxide as particulate organic carbon through a suite of processes …