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What is the approximate temperature of boundary between the asthenosphere and the stiffer mantle?
The temperature at the boundary between the asthenosphere and the stiffer mantle is estimated to be around 1300-1400 degrees Celsius. This is where the rock starts to become more rigid due to the increase in temperature and pressure as you move deeper into the Earth.
What is the zone from the base of the asthenosphere to the boundary of the mantle and core?
The zone you are referring to is the mesosphere, which lies between the base of the asthenosphere and the boundary separating the mantle from the core. It is characterized by high pressure and temperature conditions, as well as the gradual increase in density from the bottom of the mantle to the core-mantle boundary.
What is the The inferred temperature at the interface between the stiffer mantle and the asthenosphere is closet to?
The inferred temperature at the interface between the stiffer mantle and the asthenosphere is closest to approximately 1300 to 1500 degrees Celsius (2372 to 2732 degrees Fahrenheit). This temperature range is crucial for the behavior of the asthenosphere, as it becomes partially molten and more ductile, allowing for mantle convection and tectonic plate movement.
What is the depth pressure and temperature where the plastic mantle meets the stiffer mantle?
The boundary between the plastic (asthenosphere) and the stiffer mantle (lithosphere) is typically found at depths of about 100 to 700 kilometers beneath the Earth's surface. At this depth, the pressure can range from approximately 3 to 25 gigapascals, and temperatures can vary between 1,300 to 3,000 degrees Celsius. This transition zone marks a significant change in the physical properties of the mantle materials.
What type of plate boundary is asthenosphere?
The asthenosphere is not a plate boundary. It is the layer of Earth's mantle on which tectonic plates float.
Is the lithosphere and asthenosphere boundary above or below the Moho?
The boundary between the asthenosphere and the lithosphere is normally below the Moho (which marks the boundary between the crust and the mantle). The exception to this is below mid-ocean ridges where the moho and the lithosphere / asthenosphere boundary are at the same depth.
Is asthenosphere a plate boundary?
No. The asthenosphere is a ductile layer of the mantle that tectonic plates float on top of.
The area from the base of the asthenosphere to the mantle-core boundary is known as?
This region is known as the mesosphere. The base of the mesosphere includes the D'' (D double prime) layer which is sometimes considered to be a transition zone between the mantle and the core-mantle boundary zone.
What is the range of pressure within the stiffer mantle?
The pressure within the stiffer mantle ranges from about 14 GPa (gigapascals) at the upper boundary to over 136 GPa at the core-mantle boundary. This high pressure contributes to the solid-state behavior of the mantle material despite its high temperature.
Where are the cool and hot regions of the mantle located?
Cool regions of the mantle are typically found near the Earth's surface, while hot regions are deeper within the mantle. The boundary between the two is known as the lithosphere-asthenosphere boundary, which separates the cooler, rigid lithosphere from the hotter, more ductile asthenosphere.
What is the relationship between the mantle and asthenosphere?
All of the asthenosphere is contained within a larger layer called the mantle.
What is the relationship between the mantle and the asthenosphere?
The asthenosphere is a layer within the upper mantle. It is a more ductile and partially molten region of the mantle that allows for the movement of tectonic plates above it. The mantle, which includes the asthenosphere, is the layer of the Earth located between the crust and the core.
