Volcanoes erupt when magma rises through cracks in the Earth's crust, but the exact processes that lead to the melting of rocks in the Earth's mantle below are difficult to study.
Earth Sciences
Jul 6, 2017
0
360
Several hundred miles off the Pacific Northwest coast, a small tectonic plate called the Juan de Fuca is slowly sliding under the North American continent. This subduction has created a collision zone with the potential to ...
Earth Sciences
May 24, 2017
0
354
Continental drift and plate tectonics—the notion that large chunks of Earth's crust slowly but inexorably shift positions—was proposed in 1912 but not accepted until the 1960s. These movements changed the face of the ...
Earth Sciences
May 18, 2017
1
26
New insights into the convection patterns of the Earth's mantle and its chemical makeup have been revealed by a researcher from the University of Leicester.
Earth Sciences
May 12, 2017
1
168
For the first time, ETH scientists have successfully recreated the formation of continental crust in the Archean using a computer simulation. The model helps scientists to better understand processes that took place three ...
Earth Sciences
May 10, 2017
0
21
Rice University petrologists who recreated hot, high-pressure conditions from 60 miles below Earth's surface have found a new clue about a crucial event in the planet's deep past.
Earth Sciences
Apr 25, 2017
8
228
Researchers have found signs of fault displacement at well-known rock outcrops in Colorado that mark the end-Cretaceous asteroid impact that may have hurried the extinction of the dinosaurs. They will present their results ...
Earth Sciences
Apr 11, 2017
0
86
Rock samples from northeastern Canada retain chemical signals that help explain what Earth's crust was like more than 4 billion years ago, reveals new work from Carnegie's Richard Carlson and Jonathan O'Neil of the University ...
Earth Sciences
Mar 16, 2017
0
224
For decades, scientists have theorized that the movement of Earth's tectonic plates is driven largely by negative buoyancy created as they cool. New research, however, shows plate dynamics are driven significantly by the ...
Earth Sciences
Jan 18, 2017
5
748
What makes a rocky planet Earth-like? Astronomers and geoscientists have joined forces using data from the Sloan Digital Sky Survey (SDSS) to study the mix of elements in exoplanet host stars, and to consider what this reveals ...
Astronomy
Jan 6, 2017
1
66
