WebEarth Sciences. Earth Sciences questions and answers. a) How does the crust differ from the mantle in terms of chemical composition and density? Explain why seismic waves travel faster through the mantle than through the crust. b) How does the lower lithosphere differ from the asthenosphere in terms of chemical composition and density? Web7 apr. 2024 · asthenosphere- lower density, floats. lower mantle- higher density, beneath the asthenosphere. 3. texture. asthenosphere- more rigid, less plastic. lower mantle- solid, plastic texture. Advertisement Advertisement New questions in Biology. things that you can recycle that is useful
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WebLithosphere mainly consists of granite and basalt but more than 80 other elements are also found in the crust. Asthenosphere lies beneath lithosphere and begins at about 155 miles below the surface of the … Web19 jan. 2011 · Mantle Hills, Oman, January 2009. def. Lithosphere:1. The cool, outer layer of the Earth that deforms in a brittle manner.2. Although often mistaken for the crust, a layer of the Earth that actually consists of both the crust and part of the upper mantle. Last week I blogged about the notorious PhD general or qualifying exam. A common question that … ipekyol com tr
What Is the Difference Between Lithosphere and Asthenosphere?
Web5 apr. 2024 · This difference in relative density causes oceanic plates to subduct beneath the more buoyant continental plates. This also allows the denser oceanic plates to sink further into the fluid asthenosphere, causing them to lie below sea level. In contrast, the more buoyant continental plates float higher, resulting in dry land. Web11 apr. 2024 · Such asthenosphere–lithosphere interactions are generally considered by the academic community as a possible main driver of mantle heterogeneity marked by trace element and radiogenic isotope compositions of the oceanic plateaus outside the range of plume sources defined by OIB (e.g., Xu et al., 2024), but the mechanism and processes … Web12 apr. 2024 · The Rock Cycle. igneous. m g. elt in. ba ol. ing k co. p. in,c de. g, g, oo tin. pr n,. lin io. es el. g os m. sin er. g sedimentary baking, pressing metamorphic. erosion, dep. 04/12/23 1 Earth: Compositional Layers. 04/12/23 2 Based on Composition Physical Characteristics Crust Brittle, solid Similar to lithosphere mantle but asthenosphere … open windows sound properties