Topics include how seismic tomography can provide clues to scientists about mantle dynamics in the aftermath of an earthquake including variations in seismic velocities, the influence of temperature in Earth's upper mantle, and a brief overview of a study by Schuberth and colleagues focusing on ...
The mantle is extremely hot, but for the most part, it stays in solid form because the pressure deep inside the planet is so great that the material can't melt. In certain circumstances, however, the mantle material does melt, forming magma that makes its way through the outer crust. ...
The mantle is extremely hot, but for the most part, it stays in solid form because the pressure deep inside the planet is so great that the material can't melt. In certain circumstances, however, the mantle material does melt, forming magma that makes its way through the outer crust. ...
Divergent Plate Boundaries:Here, tectonic plates move apart, allowing mantle material to rise. This ascent reduces pressure, initiating melting, especially at mid-ocean ridges where new oceanic crust forms. Mantle Plumes (Hotspots):These are vertical columns of hot mantle rock that rise from deep w...
How are heat and temperature related? How does heat move from one place to another in the troposphere? How does stratification affect primary production? How did the ozone layer form? How do convection currents work? How does wind shear maintain convection? How does surface area of water affect...
Subduction is the process of one tectonic plate being forced down toward the mantle at a convergent plate boundary. This usually happens when a continental plate meets an oceanic plate because the oceanic plate is denser than the continental plate. This density different means than an oceanic ...
Amplifying Magnetic Fields — The Dynamo Effect Scientists started thinking about this problem by considering the way that electric and magnetic fields were produced in the laboratory. When conductors, like copper wire, move in magnetic fields, electric fields are created. These fields...
When Del Rey decided to move west, she said during a recent Q&A at the Grammy Museum, she and her sister already knew they wanted to try the canyon life. “We liked the idea of Crosby, Stills & Nash and that communal, getting-togetherness,” she said. The artist added that she’d ...
Collisions in Outer Space Where does all that heat come from? It is not from the Sun. While it warms us and all the plants and animals on Earth’s surface, sunlight can’t penetrate through miles of the planet’s interior. Instead, there are two sources. One is ...
Rockets are great examples of how forces make things move. It's a common mistake to think that rockets move forward by "pushing back against the air"—and it's easy to see that this is a mistake when you remember that there's no air in space to push against. Space is literally that...