Answer The atoms in rocks rearrange to form denser minerals. The combination of heat and pressure may cause the minerals in the rock to separate into layers.
Answer Pressure squeezes out any remaining water that may be left in the metamorphic rock and minerals that have water as part of their structure are changed chemically to minerals that do not require water as part of their structure. The metamorphic rock will then have become a higher grade metamorphic rock possibly containing garnet, a non-hydrous mineral.
Water and ice are agents in the processes of weathering and erosion; breaking apart rocks of all types into smaller pieces and transporting them to a place of deposition, where they can lithify into new sedimentary rock when water is squeezed out during compaction and cementation.
Removal of water by heat and pressure can create metamorphism of rock when hydrous minerals are replaced with non-hydrous minerals.
yes! It affects rocks by breaking them. These rocks of course are under a lot of stress when being smashed by something and when pressure comings onto them it cracks them and they then break.
Yes it has a tremendous effect on rocks but mainly the pore system of the rock. As the pressure increases the void space in the rock (porosity) will decrease, by decreasing the porosity, the pressure can potentially decreases the connectedness of the pores (permeability), permeability defines how well a fluid can flow through the pores. If the pressure increases then the decreasing porosity will increase the water (brine) saturation, this comes from archie's law and the Resistivity index. If the saturation of the brine increases with pressure then the wettability changes to more water-wet, this is no good! So basically if we don't take into account pressure affects on a rock or only look at the macroscopic affects and not the microscopic affects, then we ruin any chance of retrieving oil and could damage the well formation for good and sometimes even hurt people. One last thing, N=Ah(Phi)(1-Sw)R...A is the area, h is the height, Phi is porosity, Sw is water saturation, and N is million bbl of oil. If we do not look at pressure affects, we get a very unreliable number for N, which means we drill and find nothing or we decide not to drill and pass on a great well. Things get more complex when you through shale into the mix and how their properties vary with pressure because shale properties really start making things messy, Google Simandoux equation or Laminated Shale model equation, to get an idea of we deal with. Not simple to say pressure breaks rocks.
Pressure can compress rocks and indeed reduce any porosity they had (not all rocks are porous) but the bigger effects are on the formations as a whole, by folding and faulting. Many rocks will bend very slightly, then fracture by tension on the outside of the bend, as folding intensifies. A fault is also a fracture, but of shear form.
In the Rock Cycle, heat and pressure helps the igneous rock to form a metamorphic rock which forms back into an igneous rock. The sedimentary rock is helped through heat and pressure to form a metamorphic rock.
surprisingly most of the time it stays the same, but if the pressure is continuous, it has a high percentage of braking. that type of boundary is called convergent boundary. that is when plate tectonics (NOT ROCKS) collide.
Pressure makes rocks become metamorphosed.
it makes brocoli
They become exposed to deformation in a process called metamorphism, and become metamorphic rocks.
Metamorphic rocks can undergo further metamorphism through additional heat and pressure. They can also be melted, then cooled, and become igneous rock. They can also erode and become components of sedimentary rocks.
Sedimentary rock can become metamorphic rock under intense heat and pressure. The heat and pressure do not change the rock's chemical composition, but do change its physical properties like hardness, texture, and structure.
I think you are looking for the term "Metamorphic".
Metamorphic rock
Deformed, and change into metamorphic rocks.
heat and pressure
heat and pressure.
Metamorphic rocks become igneous rocks by melting from heat and pressure, remnants of which may cool from melt (magma) and become components of igneous rock.
Pressure, Heat, Chemically active fluids (water and CO2 in rocks), Time(obviously), and the parent rock composition.
Heat, Pressure, Magma, and the crust from the Earth.
compaction
Igneous rocks are a "finished product". They do not become sedimentary rock - though sedimentary rocks, with heat and pressure can become metamorphic rocks.
Sedimentary rocks can be eroded into sediments and form sedimentary rocks again, they can melt and become igneous rocks, and they can undergo extreme heat and pressure and become metamorphic rocks.
They become exposed to deformation in a process called metamorphism, and become metamorphic rocks.
pressure helps the metamorphic with the high temprature or pressure
A sedimentary rock is formed when an igneous rock is subjected to weathering, erosion, compaction, and cementation!