The CEED blog - Page 6

Published Oct. 26, 2020 7:54 PM

A study by Ella Stokke and Morgan Jones (CEED, University of Oslo) in collaboration with Emma Liu (University College London) is published this week in the open access journal Volcanica. It presents new data on basaltic volcanic ash layers that are preserved in Danish sediments originating from the North Atlantic Igneous Province ~55 million years ago. The findings indicate that these ashes were formed by explosive hydromagmatic (water-magma interactions) eruptions, most likely as the volcanoes were submerged by the newly formed northeast Atlantic Ocean. This is by far the largest known explosive basaltic volcanism ever documented.

Published July 27, 2020 11:26 AM

Like our planet’s vast surface oceans, subduction is a process unique to Earth. Active and extinct subduction zones - the surface point where one tectonic plate plunges under another - can be found all over our planet. However, we don’t know a lot about the conditions under which they initiate. A brand new interdisciplinary database on Subduction Zone Initiation www.szidatabase.org and accompanying paper has been published today in Nature Communications. The paper (Crameri et al., 2020) reviews a wide range of existing literature, presents new and clear definitions, key insights into subduction ingredients, and encourages community participation.

Published July 24, 2020 3:42 PM

An open-access paper entitled “Neotectonics of the Sea of Galilee (northeast Israel): implication for geodynamics and seismicity along the Dead Sea Fault system” was recently published in Scientific Reports. It includes results of a geological study carried out by an international team of scientists from Israel, Italy, Switzerland, Norway and Germany (Gasperini et al., 2020), including CEED's Adriano Mazzini. The paper deals with the problem of earthquake generation and tectonics in a key region along the Dead Sea Fault, a major continental transform separating the African/Sinai and Arabian plates.

Published May 19, 2020 12:12 AM

Researchers from the CEED Earth Crises group, led by Dr. Thea Hatlen Heimdal, have published a new study in PNAS showing that carbon release from the Central Atlantic Magmatic Province (CAMP) was responsible for major carbon cycle changes. Using a numerical carbon cycle model, they found that the release of 24,000 billion tons of carbon replicates proxy data for climate change from geological records.   

Published May 18, 2020 11:22 PM

In an exciting new paper out today, researchers looked to Earth's volcanoes in order to explain the formation of some lava-like flow morphologies on Mars. The mud flows on the red planet were simulated low-pressure chamber at cold temperatures, and may hold implications for other features found in the solar system! The paper, published in Nature Geoscience, was a collaborative study involving CEED Researcher Adriano Mazzini. 

Photo of a man on a mountain

The CEED blog covers some behind-the-scenes about our latest research and activities. The contributors are a mix of students and staff from The Centre for Earth Evolution and Dynamics, Dept. of Geosciences, University of Oslo, Norway.