Earth's lower mantle lies below the
WebThe core–mantle boundary (CMB) of Earth lies between the planet's silicate mantle and its liquid iron - nickel outer core. This boundary is located at approximately 2,891 km (1,796 … WebAug 25, 2015 · Deep within Earth’s interior, in the brittle lithosphere and in the viscous asthenosphere below it, magma collects and ultimately feeds erupting volcanoes on Earth’s surface. This magma holds...
Earth's lower mantle lies below the
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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 120 mi) below the surface, and extends as deep as 700 km (430 mi). However, the lower boundary of the asthenosphere is not well defined. Webfalse The Earth's mantle lies directly below the inner core. 5. Explain how scientists believe the Earth's four layers were formed. Many scientists believe that when the Earth was formed, it was a hot ball that was made of a mixture of different rock and metals. As it cooled, the heavier parts sank to the inside of the planet.
WebThe asthenosphere (from Ancient Greek ἀσθενός (asthenós) 'without strength') is the mechanically weak [1] and ductile region of the upper mantle of Earth. It lies below the lithosphere, at a depth between ~80 and 200 km (50 and 120 mi) below the surface, and extends as deep as 700 km (430 mi). WebJul 1, 2005 · Earths composition changes abruptly about 2,900 kilometers below the surface, where the core gives way to a mantle much less dense than the core and made of solid magnesium-iron silicate...
WebLower mantle c. Asthenosphere d. Moho Q04.Describe the source of the Show transcribed image text Expert Answer 100% (12 ratings) Ans 1:a) Continental crust. average density of continental crust (2.7-2.8g/cc) whereas of oceanic crust (2.9-3.0g/cc). Ans 2:b) False. Since the average density of continental crust is lower than of oceanic crust.
WebMay 10, 2024 · The uppermost part of the mantle near the crust is hard and brittle. This layer and the Earth's crust are known as the lithosphere, while the rest of the upper mantle below is called the...
WebThe Moho ____________. a. is found deeper underneath continents than under oceans. b. lies at uniform depth everywhere it is found in Earth. c. is found well below the … smart care dryerWebDec 7, 2015 · The lower mantle lies between 660-2,891 km (410-1,796 miles) in depth. Temperatures in this region of the planet can reach over 4,000 °C (7,230 °F) at the boundary with the core, vastly... hillary news updateWebThe middle layer of earth, semi-liquid (or plastic-like) asthenosphere. The solid, plastic layer of the mantle beneath the lithosphere; made of mantle rock that flows very slowly, which … hillary noel schneiderWebJun 12, 2014 · The Earth's mantle is the hot, rocky layer between the planet's core and crust. Scientists have long suspected that the mantle's so-called transition zone, which … hillary nicoleWebThe mesosphere is labeled as Stiffer mantle in this diagram. The lower mantle, historically also known as the mesosphere, represents approximately 56% of Earth's total volume, and is the region from 660 to … smart care behavioral healthWebMay 2, 2024 · Earth's lower mantle lies just below the crust. In geology, a crust is the outermost layer of a planet. The crust of the Earth is composed of a great variety of igneous, metamorphic, and sedimentary rocks. The crust is underlain by the mantle. smart care hand sanitizer sweet peaWebAug 20, 2014 · The asthenosphere lies just below the lithosphere and composes the upper part of the Earth's mantle. Its temperature is 1300 degrees Celsius. What is the layer … hillary norton santa fe rheumatology