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Sand, silt or clay
Sedimentary rocks are formed by the lithification (cementing, compacting, and hardening) of existing rock or the bones, shells, and pieces of formerly living things. Rocks are weathered and eroded into tiny particles which are then transported and deposited along with other pieces of rock called sediments. Sediments are cemented together and compacted and hardened over time by the weight and pressure of up to thousands of feet of additional sediments above them. Eventually, the sediments are lithified and become solid sedimentary rock. These sediments that come together are known as clastic sediments. Sediments usually sort themselves by the size of the particles during the deposition process so sedimentary rocks tend to contain similarly sized sedimentary particles. An alternative to clastic sediments are chemical sediments which are minerals in solution that harden. The most common chemical sedimentary rock is limestone, which is a biochemical product of calcium carbonate created by the parts of dead creatures. Approximately three-quarters of the earth's bedrock on the continents is sedimentary.
The Earth's crust does have sedimentary rocks in it's structure - limestone, slate, chalk, are three examples of commonly found sedimentary rocks.
Sedimentary rocks are found generally at the bottom of an ocean as this is where eroded material falls. Igneous rocks are found near volcanoes as they are molten rock. Metamorphic rock can be found anywhere, as it is formed in the ground and slowly comes up to the surface (but it is made of igneous or sedimentary rocks.)
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Jay
quartz, garnet and rutile.
There are three major types of rock: igneous (formed from the cooling and solidification of magma or lava) sedimentary (laid down as sediments) and metamorphic (changed by heat and/or pressure)
Sand, silt or clay
Sedimentary rocks are made up of materials that were once part of another rock. Most sediments are deposited on ocean floors or at the bottom of rivers and lakes.Clastic sedimentary rocks form from layers of sediments. Pressure causes the water around the sediments to be squeezed out and the sediments are cemented together.
Younger than all three sediments.
Sedimentary rocks are formed by the lithification (cementing, compacting, and hardening) of existing rock or the bones, shells, and pieces of formerly living things. Rocks are weathered and eroded into tiny particles which are then transported and deposited along with other pieces of rock called sediments. Sediments are cemented together and compacted and hardened over time by the weight and pressure of up to thousands of feet of additional sediments above them. Eventually, the sediments are lithified and become solid sedimentary rock. These sediments that come together are known as clastic sediments. Sediments usually sort themselves by the size of the particles during the deposition process so sedimentary rocks tend to contain similarly sized sedimentary particles. An alternative to clastic sediments are chemical sediments which are minerals in solution that harden. The most common chemical sedimentary rock is limestone, which is a biochemical product of calcium carbonate created by the parts of dead creatures. Approximately three-quarters of the earth's bedrock on the continents is sedimentary.
Pyrite could be found in any of the three rock types (sedimentary, igneous, metamorphic).
Sedimentary rocks: Rock formed when chemical reactions cement sediments (small, solid fragments of rocks and other materials) together, hardening them. Igneous rocks: Rock that forms from molten rock (hot magma thats cools and hardens). Metamorphic rocks: Igneous/sedimentary rock that has been changed into a new kind of rock as a result of great pressure and temperature.
The three types of ocean floor sediments are Terrigenous, Biogenous, and Hydrogenous sediments.
Any rock type; metamorphic, sedimentary, or igneous.