During the Cambrian Explosion, episodic radiations of major animal phyla occurred in concert with repeated coupled carbon-sulfur isotope excursions.
biogeochemistry
Using An Ancient Plant To Decode Earth’s Climate History
A team of researchers at The University of New Mexico has uncovered how a peculiar, prehistoric plant might unlock new ways to reconstruct Earth’s ancient climate.
How A Pyrite-oxidizing Microbe Helps Preserve Atmospheric Oxygen In Sulfate
Because oxygen-bearing sulfate minerals trap and preserve signals from Earth’s atmosphere, scientists closely study how they form. Sulfates are stable over billions of years, so their oxygen isotopes are seen […]
Microbes At Red Sea Vents Show How Life And Geology Shape Each Other
A new study led by King Abdullah University of Science and Technology (KAUST; Saudi Arabia) Professor Alexandre Rosado has revealed an unusual microbial world in the Hatiba Mons hydrothermal vent […]
Hydrothermal Plumes As Invisible Transport Pathways For Iron
The study [Iron’s irony: speciation, complexation & microbial processing of Fe in hydrothermal plumes, Communications Earth & Environment, Nature (open access)] synthesizes existing research and reinterprets it to explain how […]
Heat Reveals What Clouds Conceal: Global Carbon & Longitudinally Asymmetric Chemistry on LTT 9779 b
LTT-9779 b is an ultra-hot Neptune (Rp ~ 4.7 Re, Mp ~ 29 Me) orbiting its Sun-like host star in just 19 hours, placing it deep within the “hot Neptune […]
Exomorphic Catalysis: A Discipline Dedicated to Energetic Disequilibria and the Activation of Life-Potential in Non-Terrestrial Environments
The search for life beyond Earth has long been guided by two dominant paradigms: astrobiology, which seeks environments capable of supporting life as we know it, and planetary engineering, which […]
Life On Earth Probably Needed Supplies From Space
After the formation of the Solar System, it took a maximum of three million years for the chemical composition of the Earth’s precursor to be completed. This is shown by […]
Core-mantle Partitioning And The Bulk Earth Abundances Of Hydrogen And Carbon: Implications For Their Origins
We determined the metal/silicate partition coefficients of hydrogen and carbon, DH and DC, simultaneously under typical conditions of Earth’s core formation.
Revisiting The Eoarchean Akilia Quartz-pyroxene Rock With Potassium Isotopes: Implications For Early-ocean Sedimentation
The Eoarchean quartz-pyroxene rock from Akilia Island in Greenland has been proposed as one of Earth’s oldest banded iron formations (BIF) and a potential host for the earliest biosignatures.
