The lithosphere is the rigid outermost layer of the Earth. It comprises two compositional units – the crust and the upper mantle. The movement of individual fragments of the lithosphere (the tectonic ...

The mechanism facilitating the smooth movement of the oceanic lithosphere over the underlying asthenosphere (upper mantle) remains poorly understood. Recently, researchers from Japan investigated ...

Additionally, they note, "At greater depths, the lithosphere-asthenosphere boundary (LAB) represents a first-order structural discontinuity that accommodates differential motion between the tectonic ...

The lithosphere-asthenosphere boundary (LAB) puts the "plate" in plate tectonics, marking the bottom of the stiff tectonic plates that shift on Earth's surface, ...

One type of S-wave reflects from Earth's surface halfway between an earthquake and a seismometer. An S-wave encountering a deeper melt layer at the lithosphere-asthenosphere boundary at this ...

That's one conclusion from a new study by Rice University geophysicists who modeled flow in the 100-mile-thick layer of mantle that begins at the base of Earth's tectonic plates, or lithosphere.

The lithosphere-asthenosphere boundary (LAB) puts the "plate" in plate tectonics, marking the bottom of the stiff tectonic plates that shift on Earth's surface, riding convection currents deeper ...

The Crust-Mantle and Lithosphere-Asthenosphere Boundaries: Insights from Xenoliths, Orogenic Deep Sections, and Geophysical Studies edited by Gianluca Bianchini, Jean-Louis Bodinier, Roberto Braga ...

Their aim was to learn more about the plate interface, which lies at a depth of 15–30 km, and the potential risk it poses to the nearby Wellington region. “The big surprise was getting the coherent ...

These seismic clues could also provide insights into the geology of Mars, Venus and other planets, scientists added. The Earth's rigid, outermost layer, the lithosphere, is up to 150 miles (250 ...