WebApr 8, 2024 · When molten rock flows up through the asthenosphere to the seafloor it produces large basaltic eruptions. As the plates diverge, new ocean floor is created and … The asthenosphere is a part of the upper mantle just below the lithosphere that is involved in plate tectonic movement and isostatic adjustments. It is composed of peridotite, a rock containing mostly the minerals olivine and pyroxene. The lithosphere-asthenosphere boundary is conventionally taken at … See more The asthenosphere (from Ancient Greek ἀσθενός (asthenós) 'without strength') is the mechanically weak and ductile region of the upper mantle of Earth. It lies below the lithosphere, at a depth between ~80 and 200 km (50 and … See more The asthenosphere extends from an upper boundary at approximately 80 to 200 km (50 to 120 miles) below the surface to a lower boundary at a … See more Decompression melting of asthenospheric rock creeping towards the surface is the most important source of magma on Earth. Most of this erupts at See more • San Diego State University, "The Earth's internal heat energy and interior structure" Archived 3 March 2011 at the Wayback Machine See more The mechanical properties of the asthenosphere are widely attributed to the partial melting of the rock. It is likely that a small amount of … See more • Seismology § History See more • Hirschmann, Marc M. (March 2010). "Partial melt in the oceanic low velocity zone". Physics of the Earth and Planetary Interiors. 179 (1–2): 60–71. Bibcode:2010PEPI..179...60H. doi:10.1016/j.pepi.2009.12.003. • Karato, Shun-ichiro (March 2012). See more
Does the asthenosphere move slowly? – TeachersCollegesj
WebYes, the Atlantic ocean is getting bigger and the pacific ocean is getting smaller due to the continental drift. This is caused by the natural moments of the plates as they glide on the … WebOct 27, 2024 · The theory of plate tectonics suggests that the lithospheric plates move because of convection currents in the semi molten mantle. Explanation: Convection currents can be observed on the surface of a hot liquid. If there are minerals in the liquid that can solidify as they cool, the minerals are observed to form plate like structures. in flat reaction act
Asthenosphere geology Britannica
WebThe asthenosphere is made of magma which is heated, almost melted rock. It has a plastic consistency allowing the lithosphere to float and move on top of it How do we know what the inside of Earth looks like? We know because we can measure how seismic waves move through the interior of earth Where do seismic waves come from? WebApr 8, 2024 · These plates move slowly on top of the asthenosphere layer. (Image credit: blueringmedia via Getty Images) The asthenosphere acts as a lubricant for the slabs of lithospheric plates, allowing... Web1 day ago · Search for an answer or ask Weegy. Weegy: Hot spot volcanism is typically responsible for forming volcanic island chains in the oceans. Weegy: The asthenosphere is the highly viscous mechanically weak ductilely-deforming region of the upper mantle of the Earth. Log in for more information. in flight air tracker