0
List three ways in which tectonic plates floating on the asthenosphere are similar to ice cubes filling a punch bowl?
Wiki User
∙ 13y ago
1. The ice represents the lithosphere. It "floats" on the punch as it is of lower density and therefore buoyant.
2. The ice is a brittle solid - this mechanical behaviour is similar to that displayed by lithospheric plates.
3. The punch behaves as a liquid and so can convect aiding the movement of the ice. To a certain extent so to does the asthenosphere (in actual fact, the asthenosphere is a highly ductile solid however it convects on a geological time-scale) .
Wiki User
∙ 13y ago
Anonymous
reet
Add your answer:
Earn +20 pts
How are the lithosphere and asthenosphere similar?
lithosephere is the uppermost part of a mantel and the mantel and the crust together and the asthenosphere is less riggid
Which layer of the earth has plasticity?
The basic answer is the Mantle, but, really, it's the only very uppermost part of the Mantle that encounters plasticity and convection--when relating to tectonic plate movement, at least. The Asthenosphere is the fluid layer on with plates move across the surface of the earth, being pulled apart (Diverging) or colliding together (Converging). The Asthenosphere is what drives convection and in a very similar way, subduction. Like the person above said, if your teacher/professor hasn't said the word Asthenosphere, then the answer he/she is looking for here is the Mantle, or Upper Mantle. I'd go with Upper Mantle to be safe.
How can the continents float?
Tectonic plates are either oceanic crust and/or continental crust and the upper solid layer of the mantle. The continental crust is composed of felsic (rich in feldspars and silica) rocks and the oceanic crust of mafic (rich in magnesium and iron) rocks. The mantle however is composed of peridotite (which is ultramafic meaning it has very high concentrations of the denser magnesium and iron minerals). As such it is much denser than either the mafic or felsic rocks of the crust and the density increases with increasing depth. The crust and solid upper mantle are known together as the lithosphere as they have similar mechanical properties (behaving as a brittle solid) and are separated into the tectonic plates which effectively float on the underlying asthenosphere which is a denser plastic like zone below them the mantle. Ultimately the "floating" of tectonic plates on the upper mantle is due to the density contrast between the materials composing the lithosphere and asthenosphere.
What are some interesting facts about asthenosphere?
by low-density, semiplastic (or partially molten) rock material chemically similar to the overlying lithosphere. The upper part of the asthenosphere is believed to be the zone upon which the great rigid and brittle lithospheric plates of the earth's crust move about (see plate tectonics). The asthenosphere is generally located between 45—155 miles (72—250 km) beneath the earth's surface, though under the oceans it is usually much nearer the surface and at mid-ocean ridges rises to within a few miles of the ocean floor. Although its presence was suspected as early as 1926, the worldwide occurrence of the plastic zone was confirmed by analyses of earthquake waves from the Chilean earthquake of May 22, 1960. The seismic waves, the speed of which decreases with the softness of the medium, passed relatively slowly though the asthenosphere, thus it was given the name Low Velocity zone, or the Seismic Wave Guide (see seismology). Deep-zone earthquakes, i.e., those that occur in the asthenosphere or below it, may be caused by crustal plates sinking into the mantle along convergent crustal boundaries.
How are oceanic crust and continental crust similar?
They both behave as brittle solids and are both formed of a mixture of igneous, metamorphic and sedimentary rocks.
How is the lithosphere similar to the asthenosphere?
There both in the mantle
How are the lithosphere and asthenosphere similar?
lithosephere is the uppermost part of a mantel and the mantel and the crust together and the asthenosphere is less riggid
How are creamed soups and pureed soups similar?
Both have similar consistency and filling.
How are the lithoshphere and asthenosphere similar and how are they different?
The differences and similarities between lithosphere and asthenosphere are as follows. Lithoshphere is made up of rigid rocks flowing above asthenosphere. Asthenosphere has rocks that are more plastic like because they can flow even tho they are still solid rock. The top part of asthenosphere is the same as the lower part of lithosphere, if the top part of asthenosphere cools it then becomes part of lithosphere. Lithosphere and asthenosphere are both made up of the upper part of the mantle on Earth but Lithosphere is also made up of the crust.
Which layer of the earth has plasticity?
The basic answer is the Mantle, but, really, it's the only very uppermost part of the Mantle that encounters plasticity and convection--when relating to tectonic plate movement, at least. The Asthenosphere is the fluid layer on with plates move across the surface of the earth, being pulled apart (Diverging) or colliding together (Converging). The Asthenosphere is what drives convection and in a very similar way, subduction. Like the person above said, if your teacher/professor hasn't said the word Asthenosphere, then the answer he/she is looking for here is the Mantle, or Upper Mantle. I'd go with Upper Mantle to be safe.
How is crust similar to lithosphere?
The Earth's Crust, Lithosphere and Asthenosphere. Crust, the upper layer of the Earth, is not always the same. ... The tectonic plates are made up of Earth's crust and the upper part of the mantle layer underneath. Together the crust and upper mantle are called the lithosphere and they extend about 80 km deep.
How are volcanos and apple pie similar?
They both have filling & a crust.
What does wheightless mean?
Feels as though your floating. Like you don't feel the weight of your own body. No pressure. Similar to floating on your back in water
How can the continents float?
Tectonic plates are either oceanic crust and/or continental crust and the upper solid layer of the mantle. The continental crust is composed of felsic (rich in feldspars and silica) rocks and the oceanic crust of mafic (rich in magnesium and iron) rocks. The mantle however is composed of peridotite (which is ultramafic meaning it has very high concentrations of the denser magnesium and iron minerals). As such it is much denser than either the mafic or felsic rocks of the crust and the density increases with increasing depth. The crust and solid upper mantle are known together as the lithosphere as they have similar mechanical properties (behaving as a brittle solid) and are separated into the tectonic plates which effectively float on the underlying asthenosphere which is a denser plastic like zone below them the mantle. Ultimately the "floating" of tectonic plates on the upper mantle is due to the density contrast between the materials composing the lithosphere and asthenosphere.
What is the name of the bird with lobed toes which builds floating nests similar to a loon?
The answer is a Grebe
What are the reasons for the Himalayas?
They occurred because the Indian tectonic plate is being pushed into the Asiatic tectonic plate. This is similar to what would happen it you shoved two pieces of play dough together.
How are crustal plates similar to ice floating on a pond?
The plates are floating on magma, and will eventually melt as they are subducted back into the mantle, just like ice melting as it floats in the water.
