An extrusive volcanic rock which is erupted under water called pumice.
No, calcareous tufa is not a metamorphic rock. It is a sedimentary rock formed from precipitation of calcium carbonate from bodies of water. Metamorphic rocks are formed through the alteration of existing rocks under high temperature and pressure conditions.
You can determine if a rock can float by comparing its density to the density of water. If the rock is denser than water, it will sink. If the rock is less dense than water, it will float. This can be tested by placing the rock in a container filled with water and observing its behavior.
Water under pressure in a confined aquifer is groundwater that is located between impermeable layers of rock or sediment and is under enough pressure that when a well is drilled into it, the water will rise above the top of the aquifer without the need for pumping. This type of aquifer is also known as an artesian aquifer.
The suspended material is rock-flour - very fine particles arising from the grinding action of rock-on-rock under the moving glacier. Do not drink it!
Water under the rock-a!
Yes
they might live under a rock but they live under the sand during the winter
An extrusive volcanic rock which is erupted under water called pumice.
Definitely. A rock sinks in the ocean because gravity operates on it even under water. A log floats in water not because gravity stops under water but because the log's density is lower than that of the water.
No! It's called artesian if it IS under an impermeable layer, but just surface or ground water without it.
Aquifers are permeable layers of rock that have non permeable layers of rock under them so water remains in the permeable layers
If we look beneath water, no matter how deep, we will always find the rock of the crust of the earth. You might have heard the term "ball of rock" applied to the earth, and the crust is the outer covering of that ball of rock. All of the world's oceans sit on top of the crust of the earth.
No you do not
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
When rock and water under the crust become very hot, the water can turn into steam, creating pressure. This can lead to volcanic activity, such as eruptions and geysers. The heat may also cause the rock to melt and form magma, which can rise to the surface and create volcanic eruptions.
Metamorphic rock usually forms when a rock is altered under heat and pressure without melting. Some rocks may be metamorphosed by contact with hot water,