0
If the earth crust is growing at the mid-ocean ridges why doesn't the Earth grow larger?
Wiki User
∙ 7y ago
At the opposite end of the convection current in the Earth's mantle that creates oceanic crust at the mid-ocean ridge, are trenches, where oceanic crust is diving down into the mantle. The Atlantic Ocean is expanding. The Pacific Ocean is shrinking.
Wiki User
∙ 13y ago
Wiki User
∙ 14y agoBecause this material travels something like a giant conveyor belt, It is generated at the mid-oceanic ridges travels across the sea bottom, and is eventually subducted in the oceanic trenches at the continental margins. Since the earth is not creating any new matter, the earth can't get larger without becoming less dense.
Wiki User
∙ 12y agoCrust is in fact recycled back into the earth for no net-gain or loss of 'land'. New oceanic crust is formed at the mid-ocean ridges and old oceanic crust is pushed back into the earth at subduction zones (why the earth experiences large earthquakes). Secondly there is no net-increase in volume/mass from upwelling magma - if you can envision a lava-lamp; the wax heated up floats to the top but there is no overall change in total mass or volume of the system. The void left by the wax when it was at the bottom was simply filled by the surrounding liquid.
Wiki User
∙ 7y agoBecause - the Earth's crust is forced back below the surface at the edges of the tectonic plates These areas are called subduction zones.
Add your answer:
Earn +20 pts
Where do midocean ridges intersect the landmasses?
Midocean ridges are areas where continents broke apart. Midocean ridges are closest to the landmasses in younger oceans. One example where a midocean ridge intersected a landmass is the Arabian sea, which was formed by the pulling apart of the Arabian Peninsula and Africa.
Is the Mid-Oceanic Ridge in the middle of the Atlantic Ocean?
One of the midocean ridges is, but others are in other oceans, seas, and bays.
What is located in midocean ridges?
The Mid-Atlantic Ridge is found on the ocean floor in the middle of the Atlantic Ocean.
Fingerprints are caused by?
Finger prints are made by dermal ridges on the fingers. You also have much larger ridges on the palms of the hand. They prevent slipping while you are holding on to things.
Earth crust grows at mid ocean ridges why doesnt the earth grow larger?
At the opposite end of the convection current in the Earth's mantle that creates oceanic crust at the mid-ocean ridge, are trenches, where oceanic crust is diving down into the mantle. The Atlantic Ocean is expanding. The Pacific Ocean is shrinking.
Where do midocean ridges intersect the landmasses?
Midocean ridges are areas where continents broke apart. Midocean ridges are closest to the landmasses in younger oceans. One example where a midocean ridge intersected a landmass is the Arabian sea, which was formed by the pulling apart of the Arabian Peninsula and Africa.
Where are the midocean ridges offset the most by faults?
At transform faults or transform zones.
Is the Mid-Oceanic Ridge in the middle of the Atlantic Ocean?
One of the midocean ridges is, but others are in other oceans, seas, and bays.
Do Ocean sediments become younger or older away from midocean ridges?
Older, as it moves away from the mid-ocean ridge the sediment gets thicker and older
What are the 3 type of earthquakes?
(1)midocean spreading ridges, (2) subduction zones, and (3) transform faults.Normal fault, Reverse fault, and strike-slip fault
What are the differences between ocean ridge and seamount?
The midocean ridges are the spreading centers where the plates are moving apart. The seamounts are extinct volcanos produced as the plate passed over a mantle hotspot.
What is located in midocean ridges?
The Mid-Atlantic Ridge is found on the ocean floor in the middle of the Atlantic Ocean.
Mid-ocean ridges show where oceans are getting A. SmallerB. LargerC. Destroyed?
B. Larger Mid-ocean ridges create new seafloor therefore pushing continents making the ocean larger.
If the earth's crust is growing at mid-ocean ridges why doesn't the Earth grow larger?
Because - the Earth's crust is forced back below the surface at the edges of the tectonic plates These areas are called subduction zones.
Do males tend to have larger brow ridges compared to females?
Yes, males tend to have prominent brow ridges, while women tend to have only slight or entirely absent brow ridges.
What is special about an abyssal plain?
Abyssal plains cover about 50% of the surface area on Earth and usually positioned between continents and midocean ridges. They are typically at least 3000m deep and represent some of the flatest, smoothest, and least explored landscapes on Earth.
Fingerprints are caused by?
Finger prints are made by dermal ridges on the fingers. You also have much larger ridges on the palms of the hand. They prevent slipping while you are holding on to things.
