WebAs the slab sinks deeper into the mantle, it releases water from dehydration of hydrous minerals in the oceanic crust. Third=Continental-Continental Convergent Boundaries are possible when two continental plates converge. ... denser oceanic lithosphere sinks beneath the warmer, less dense oceanic lithosphere. 3. Web22 aug. 2024 · For the most part, today’s subducting slabs can only sink so far, to about 670 kilometers below the surface, before the mantle’s makeup turns from a honey-like consistency, to that of paste — too dense for most slabs to penetrate further. Scientists have suspected that this density filter existed in the mantle for most of Earth’s history.
cooler, older, oceanic lithosphere sinks into the mantle at
WebWhere the oceanic lithosphere of a tectonic plate converges with the less dense lithosphere of a second plate, the heavier plate dives beneath the second plate and sinks into the mantle. A region where this process … Web30 jan. 2004 · The rigid outer layer of our planet, called the lithosphere, is the cold, top boundary of convection cells in the mantle. Two features of the ocean floor are the results of this active process. At ocean trenches, old, cold, and dense lithosphere sinks back into the hotter mantle below, dragging surface plates along with it. shankar ganesh economy
Stagnation of subducting slabs in the transition zone due to
WebCooler, older, oceanic lithosphere sinks into the mantle at_____. Sinking of oceanic lithosphere into the mantle at asubduction zone . Deep ocean trenches are surficial evidence for _____. A deep, vertical fault along which two plates slide pastone another in opposite directions . Web14 dec. 2024 · Cooler, older, oceanic lithosphere sinks into the mantle at. A) subduction zones along convergent plate boundaries. B) sites of long-lived, hot spot … WebEarth's mantle is a layer of silicate rock between the crust and the outer core.It has a mass of 4.01 × 10 24 kg and thus makes up 67% of the mass of Earth. It has a thickness of 2,900 kilometers (1,800 mi) making up about 84% of Earth's volume. It is predominantly solid but, on geologic time scales, it behaves as a viscous fluid, sometimes described as having … polymer cabinet vanity