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How is the earths crust under the oceans different from the crusts below the continents?
The crust under the ocean is thinner than continental crust. Ocean crust is also, on average, richer in minerals containing iron and magnesium, giving it a greater density than continental crust. Imagine placing two slabs of wood next to each other in a swimming pool. The first slab will be thin piece of oak and the second will be thicker piece of pine. The pine, being less dense than the oak, will stick up higher in the water and at the same time will also ride lower in the water than the oak. Similarly, both ocean crust and continental crust float on the mantle (more specifically the asthenosphere which is a layer in the upper mantle). Ocean crust is like the oak and continental crust is like the pine. Ocean crust is composed largely of the igneous rocks basalt, gabbro, and peridotite. Continental crust is much more diverse in its composition, but on average is similar in density to granite.
What else can I help you with?
How can the earths surface be organized into continents and oceans explain into two sentences?
the earth can be organized into 4 oceans, 7 seas, and 7 continents
What was earths atmosphere oceans and continents began to form during a period of earths history called?
precambrian era
What is the accurate shape of a globe allows mapmakers to show earths continents and oceans?
size of island ,continents, and body of water.
How are aceans different from continents?
Oceans are made out of sea water, and continents are made out of land; dirt and rocks. Oceans are liquids, continents are solids.
Does the earths crust extend deeper below the continents or below the ocean basins?
Earths crust extend deeper below the continents than below the oceans basins (or at least this is what I think).
How does the area of Earths surface covered by the oceans compare with the area of the continents?
One third is surface and the rest is the sea.
Paleontologists noticed that these were the same on different continents even through the continents were separated by oceans?
Animals
A 7 letter word where paleontologists noticed that these were the same on different continents even though the continents were separated by oceans?
fossils
Why are there different oceans on Earth?
The Earth has different oceans because of the way the continents are arranged on the planet. The oceans are separated by land masses, creating distinct bodies of water such as the Atlantic, Pacific, Indian, and Arctic oceans.
What does the oceans plus the number of continents equal?
7 continents and 5 oceans = 12
What has greater seasonality oceans or continents?
continents
If Earths plates and continents are constantly moving what effect does this have on Earths oceans?
The movement of Earth's plates and continents can cause changes in sea level, ocean currents, and the distribution of marine life. It can also affect the shape of ocean basins and the location of coastlines.
