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The basaltic crust becomes newer the closer it is to the ridge and has therefore had less time of exposure to sedimentation. New crustal rock is formed at the mid-oceanic ridge. An inch or two a year.
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What is the difference between a mid ocean ridge and a rift?
ewkmf\
Where do cirques intersect?
Cirques could intersect at an intermediate ridge. This would be less common.
How did Harry Hess discover seafloor spreading?
Harry hess' hypothesis was hot/less dense material rises up the Earth's crust toward the mid-ocean ridges. When the seafloor breaks apart, magma is forced upward and through the cracks. It cools, and becomes a new seafloor. When it moves away from the mid-ocean ridge, it becomes denser and sinks. This helps form ridges.
Why are el nino waters less dense than those of the surrounding ocean?
El Nino waters are less dense because the waters are warmer and warm water is less dense than cool water. Also, it constantly rains over the ocean during the El Nino, and rain water is less dense than ocean water.
What is subducting ocean plate?
An ocean plate is subducting if it is flowing under a less dense plate at a convergent plate boundary.
What is the relationship between sea floor sediment thickness and mid-ocean ridge distance?
The further away a point is from the mid-ocean ridge, the deeper the sediment layer should be. Because the ocean floor is relatively new nearer the ridge, sediments have had less time to accumulate.
In the pacific ocean uncompacted sediment measures about?
600 meters or less
Does savanna have lots of trees?
Not really because its by the ocean, it depends on where you are...the closer to the ocean the less i guess. ;) but if your talkin about the biome... then no they is not alot
How deep is the middle of the ocean?
The depth of water at the apex of the ridge is less than 2,700 metres.
What is the difference between a mid ocean ridge and a rift?
ewkmf\
What is the difference between a mid oceanic ridge and a subduction zone?
A subduction zone occurs at convergent plate margins where an oceanic plate is going underneath a continental plate or a less dense oceanic plate. A mid-ocean ridge is a divergent plate boundary on the ocean floor with a mountain range and a rift running through the center of it. Sea floor spreading also occurs at mid ocean ridges.
Why do sediment settle out of flowing water as it slows down?
Because it has less energy and can carry less sediments.
Does fast moving water carry more or less sediment?
Fast-moving water can carry more sediment than slow-moving water.
What is the definition of clay?
A sediment with particles of less than 4 micrometres diameter.
Why does most of the sediment deposit in the mouth of the river?
Rivers are generally much wider at their mouths and this means the water speed is much less than further upstream. The result is that sediment is maintained in suspension less and therefore settles out.
How does speed affect where or how sediments are deposited?
The greater the speed the less sediment deposited. A delta is where a river slows way down and sediment is deposited at the mouth of the river.
Why ocean is blue but rivers are brown?
a) The ocean is much vaster, with less obstacles to obscure direct light reflecting from the sky b) Rivers are generally shallower, making it easier to see the bottom (which is brown) c) Rivers are constantly flowing, which allows sediment to stir, minimizing the reflection of light, making it appear brown.
