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Sedimentary Rocks

Don't forget pillow lavas, and water-chilled lavas. Mid-ocean ridge rocks are surely worth a mention. And flow silicates such as the 'Pink and White terraces' and similar elsewhere in the world.

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12y ago
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10y ago

The answer is sedimentary rock, mainly. Also volcanic (igneous) rock associated with constructive plate margins such as the Mid-Atlantic Ridge, in oceanic crust tectonics.

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Q: What rocks are formed under water?
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Related questions

How is a channel formed by water?

volcanos under water exploded and rocks formed it.


Are most sedimentary rocks formed under water?

yes


What are the three formation of minerals?

There are three different kinds of rocks, depending on how they were formed. Igneous rocks formed when melted rock cooled and hardened. Sedimentary rocks formed in layers from bits of older rocks and parts of animals or plants. These collect in low areas or under water and harden into rocks. Metamorphic rocks formed when either sedimentary, igneous, or earlier formed metamorphic rocks were put under pressure and heat deep in the earth's crust.


Why does basalt rocks cool slowly?

Basalt cools off quickly because it is formed under water.


What can be formed when a river erodes rocks from an area?

A canyon can be formed where the water eats away on the rocks.


Are Extrusive Igneous Rocks Formed On The Earth's Surface?

Yes. Or in the air, or under water, or very near the surface.


What is formed when rocks bend under stress but do not break?

Folds are geologic structures that are formed when rocks bend but do not break.


Can sedimentary rocks form under the ocean or on land only?

Sedimentary rocks formed under oceans, but the ocean may no longer be there. The Great Lakes region was once all under water and has much sedimentary rock.


What feature is formed when rocks bend under stress but do not break?

Folds are geologic structures that are formed when rocks bend but do not break.


Where most sedimentary rocks formed under water?

Yes. Sediment forms under water, generally. Igneous rock, by comparison, forms in the crust and is upthrust by volcanic activity, for example.


What natural materials are rocks formed from?

they are formed from water and sand together


What causes waves in the rock layers?

depending on the rock. sedimentary rocks are formed under water and may have water wave ripples. metamorphic rock has been pressed into waves. igneous rocks flowed in waves