under depths of water
Sedimentary rocks are formed from the compaction and cementation of particles such as sand, silt, and clay. These particles are deposited in layers over time, and the pressure from the weight of the overlying material squeezes them together and binds them with minerals forming sedimentary rocks.
Most rocks do not "grow". Some rocks can grow and caves are one of the few places you can see it happen. Of course, rocks do not grow like you do and they get bigger over thousands of years. You could watch all day and not see any growth. Hot weather and cold weather do not affect the growth patterns of these rocks, but it could damage or cause rocks like the sedimentary rock, to wear down over time.
Igneous rocks are formed from the cooling of molten lava or magma. Sedimentary rocks are formed by the deposition and compaction of sediment grains or by their chemical precipitation in water. For more information please see the related link.
at the beginning of time (see rock cycle) http://en.wikipedia.org/wiki/Rock_cycle
When rocks change form in the rock cycle, we see an example of the conversion of one type of rock into another through processes like melting, cooling, erosion, and sedimentation. For instance, igneous rocks can break down into sediments that eventually form sedimentary rocks, while heat and pressure can transform sedimentary rocks into metamorphic rocks. This dynamic process illustrates the interconnectedness of Earth's materials and the continuous nature of geological changes.
Of all the rock on Earth's surface, 75% is sedimentary rock. But, sedimentary rock is only about 5% of the whole crust. Unlike igneous rock, which forms underground, sedimentary rock forms from materials at Earth's surface. Which this means that sedimentary rocks are more likely to be seen on the surface. Hope this helps :)
There are three basic types of rock; sedimentary, igneous and metamorphic. Igneous rocks are formed by volcanic action and don't contain fossils. Sedimentary rocks are formed, usually under water, by eroded material accumulating. Metamorphic rocks are formed when sedimentary rocks are changed by heating and/or pressure. From this, you can see that sedimentary rocks are the most likely to contain fossils, although metamorphic rocks also can contain fossils. Any sedimentary rock can contain fossils, but some make fossil hunting easier. Shales and mudstones are particularly good; chalk is pretty much entirely made of fossils - it's formed of skeletons of small organisms, but its difficult to see the individual fossils.
Sedimentary rocks are not intrusive. Igneous rocks are though. See the link below.
Igneous rocks form from cooling and solidification of magma or lava, sedimentary rocks form from the accumulation and cementation of sediment, and metamorphic rocks form from the alteration of existing rock through heat and pressure. By examining the texture, mineral composition, and sedimentary structures present in a rock sample, geologists can determine whether it is igneous, sedimentary, or metamorphic.
== == Sedimentary rocks may exhibit strata, or layering. Sandstones will have visible sand grains. Limestones will fizz when placed in vinegar. Fossils usually only appear in sedimentary rocks. A rock made of an assortment of other rocks is usually sedimentary.
Sedimentary rock is formed when many rocks are broken into small pieces by erosion, after a long time the small rocks fuse together and become a rock with many different layers.
A sedimentary rock is made of little tiny rock for ms whatley classSeeing Pebbles Ending The Cycle and Starting OverDown in the River streamIn the rocks are Pebbleshuman seeing the rockEntering the CycleNow it stopsTo the sedimentary rocksRight where it isYou see one right here...
The Grand Canyon mostly displays sedimentary rocks, such as sand stone. Though if you go deep enough, you can also see some pre-cambrian metamorphic rocks.
Sedimentary rocks are formed from the compaction and cementation of particles such as sand, silt, and clay. These particles are deposited in layers over time, and the pressure from the weight of the overlying material squeezes them together and binds them with minerals forming sedimentary rocks.
Most rocks do not "grow". Some rocks can grow and caves are one of the few places you can see it happen. Of course, rocks do not grow like you do and they get bigger over thousands of years. You could watch all day and not see any growth. Hot weather and cold weather do not affect the growth patterns of these rocks, but it could damage or cause rocks like the sedimentary rock, to wear down over time.
crief boy quez
Igneous rocks are formed from the cooling of molten lava or magma. Sedimentary rocks are formed by the deposition and compaction of sediment grains or by their chemical precipitation in water. For more information please see the related link.