Geochemical evidence for high volatile fluxes from the mantle at the end of the Archaean

Gas and volatiles (water, carbon dioxide, halogens, nitrogen, noble gases etc.) locked away deep within the Earth are released to the atmosphere during volcanic eruptions. The build up of these gases over geological timescales has been crucial in forming and maintaining the Earth’s atmosphere and oceans, both of which have been crucial for the development … Read more

Fossils reveal swimming patterns of long extinct cephalopod

Computational fluid dynamics can be used to study how extinct animals used to swim. Scientists studied 65 million-year-old cephalopod fossils to gain deeper understanding of modern-day cephalopod ecosystems. Three scientists affiliated with the University of Utah’s department of geology and geophysics will present research on the width, coil diameter and the overall structure of the prehistoric cephalopods … Read more

The world is getting wetter, yet water may become less available for North America and Eurasia

With climate change, plants of the future will consume more water than in the present day, leading to less water available for people living in North America and Eurasia, according to a Dartmouth-led study in Nature Geoscience. The research suggests a drier future despite anticipated precipitation increases for places like the United States and Europe, populous … Read more

New way to date rocks

A new way to date a common mineral could help pinpoint ore deposits and improve mineral exploration globally, according to University of Queensland scientists. The researchers have identified a new reference material and used a state-of-the-art instrument to better date rock formations in central Asia. UQ’s Professor Jian-xin Zhao said the team started by analysing … Read more

Unearthing History: Boston College researchers and colleagues pinpoint the source of unique chemical composition of volcanic rocks

A new analysis has revealed the source of oxidation found in rock samples from the coast of Greece, where geological activity spawned explosive arc volcanoes about 45 million years ago, a team of researchers reports in the journal Nature Geoscience. Arc volcanic rocks are highly oxidized, which has led scientists to speculate that the fluids … Read more

Imperfect diamonds paved road to historic Deep Earth discoveries

Deep Carbon Observatory highlights 10 top discoveries to celebrate a 10-year global investigation of Earth’s largest, least-known ecosystem; 1,200 scientists from 55 nations, 1,400 peer-reviewed papers. Thousands of diamonds, formed hundreds of kilometers deep inside the planet, paved the road to some of the 10-year Deep Carbon Observatory program’s most historic accomplishments and discoveries, being … Read more

It really was the asteroid

Fossil remains of tiny calcareous algae not only provide information about the end of the dinosaurs, but also show how the oceans recovered after the fatal asteroid impact. Experts agree that a collision with an asteroid caused a mass extinction on our planet, but there were hypotheses that ecosystems were already under pressure from increasing … Read more