Articles tagged with Volcanology
Nonavian dinosaurs went extinct during the end-Cretaceous mass extinction due to a 10-15% reduction in sunlight caused by an asteroid impact. Simulations suggest that the asteroid impact was the main driver of nonavian dinosaur extinction, while volcanism might have mitigated its effects.
A new study published in Lithosphere found that Permian volcanism contributed to increased atmospheric greenhouse gas content in Antarctica. The researchers analyzed age and isotopic data from zircon minerals, expanding the known distribution of Choiyoi-related deposits and highlighting the importance of subduction-related volcanism.
New research suggests that Chicxulub's impact was not the sole cause of the end-Cretaceous mass extinction. Volcanism, climate changes, and other factors also played significant roles in four out of five major mass extinctions in Earth history.
Journalists Alexandra Witze and Jane Qiu win €2,500 Geosciences Communications Fellowship for book and climate change projects respectively. The EGU General Assembly invites all winners to attend in Vienna from April 22-27, 2012.
A new themed issue of Geosphere delves into the geology and tectonic history of northern San Francisco Bay region, featuring studies on sedimentary and volcanic deposits cut by active strike-slip faults. The papers provide insights into groundwater hydrology, seismic hazard, and plate margin evolution.
Researchers have found a connection between seismic slip and nonvolcanic tremor in the Cascadia subduction zone, potentially increasing stress on the megathrust fault. The findings suggest that slow slip events may lead to increased risk of megathrust earthquakes.
A hot spot on Enceladus's south pole generates enough heat to eject ice and vapor plumes, indicating geological activity. The presence of water vapor and lack of sodium suggest a different mechanism may be at play, fueling questions about the moon's habitability.
The Geological Society of America will hold its 112th annual meeting in Reno, Nevada, from November 13-18. The event features eight Pardee Keynote Symposia and a record number of technical sessions covering topics such as active tectonics, oceanic island volcanism, and environmental geoscience.