WebAs upwelling of magma continues, the plates continue to diverge, a process known as seafloor spreading. Samples collected from the ocean floor show that the age of oceanic crust increases with distance from the spreading … Web19 jan. 2024 · Also known as the chemical layers, they include the crust, mantle, and the core. They are called the “compositional” or “chemical” layers because they correspond to their material or elemental …
What two zones is the mantle divided into? Socratic
WebOther answers have addressed part of it: seismic waves travel at different speeds depending on material properties, and S-waves cannot travel through liquid. As a result, the waves get variously reflected, and refracted, and blocked as the travel through Earth. This field of study is called seismic tomography. Volcanoes have also given us clues ... WebDifferent layers of material will allow the sound to travel at different rates. So, if we did this kind of test on other planets, we could determine if they had layers as well. Answer 3: Planetary scientists are pretty sure that Mercury, Venus and Mars also have these layers. Their cores are mostly made of iron and their mantles are probably ... crypto coin insurance
How much does the Earth
Web19 sep. 2013 · The Earth's magnetic field controls the direction and speed at which Earth's inner and outer cores spin, even though they move in opposite directions, new research suggests. Scientists have long ... Earth's mantle is divided into two major rheological layers: the rigid lithosphere comprising the uppermost mantle, and the more ductile asthenosphere, separated by the lithosphere-asthenosphere boundary. Lithosphere underlying ocean crust has a thickness of around 100 km, whereas lithosphere underlying continental crust generally has a thickness of 150–200 km. The lithosphere an… Web28 sep. 2024 · The mantle is divided into several layers: the upper mantle, the transition zone, the lower mantle, and D” (D double-prime), the strange region where the mantle meets the outer core. The upper mantle extends from the crust to a depth of about 410 kilometers (255 miles). What’s in activity 1 Earth’s layers? crypto coin information