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may be ignoious rock by violent valconic eruption due to high pressure and low tempresure
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∙ 11y ago
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Can pebbles change into igneous metamorphic and sedimentary rocks?
No. It's too late.Unless it gets eroded itself and eventually forms layers of sediment which may then get turned into rock.
What are the subgroups of rocks?
All rocks are classified into three groups: Igneous, Metamorphic, and Sedimentary. Igneous rocks form from the cooling of magma or lava. Igneous rocks divide into intrusive igneous rocks, and extrusive igneous rocks. Intrusive igneous rocks form from magma and cool slowly, thus having large crystals and a chopped up texture. Extrusive igneous rocks form from lava and cool fast, thus having small or no crystals and a fine grained or glassy texture. An example of an intrusive igneous rock would be granite, porphyry, or pegmatite. An example of an extrusive igneous rock would be basalt or obsidian. Metamorphic rocks are rocks changed by heat and pressure over time. For instance, shale, with heat and pressure, becomes slate. Limestone, with heat and pressure, becomes marble. Granite, with heat and pressure, becomes gneiss (pronounced "nice"). Sandstone, with heat and pressure, becomes quartzite. Metamorphic rocks divide into two groups: Foliate and non-foliated. Foliated is a term used to describe metamorphic rocks that have grains arranged in parallel layers or bands. An example of that would be gneiss (again, pronounced "nice"). Non-foliated is a term used to describe metamorphic rocks that have grains arranged randomly. For example, marble is non-foliated because it has no pattern to it's grains. Sedimentary rocks are types of rocks that form when particles from other rocks or the remains of plants and animals are pressed and cemented together. When sedimentary rocks are formed, they undergo a series of processes. Erosion - the destructive process in which water or wind loosens and carries away fragments of rock. Deposition - the process by which sediment settles out of the water or wind that is carrying it. Compaction(creates layers of compacted rock) - the process by which sediments are pressed together under their own weight. Cementation - the process by which dissolved minerals crystallize and glue particles of sediment together into one mass. Sedimentary rocks divide into two main subgroups. Clastic and non-clastic. Clastic sedimentary rock is sedimentary rock that forms when rock fragments are squeezed together under high pressure. These clastic rocks are grouped by the size of their fragments(or grains). Non-clastic is either organic or chemical. Organic rock is sedimentary rock that forms from the remains of organisms deposited in thick layers. Chemical rock is sedimentary rock that forms when minerals crystallize from a solution. The solution in chemical rock is calcium carbonate. Examples of organic rocks are coal, and limestone. Coal is formed in swamps from plants. Limestone is formed from living things in the ocean. An example of a chemical rock would be halite(rock salt). Another example would be some types of limestone. Examples of clastic rocks would be sandstone, shale, and conglomerate. Just as an afterthought, I'll add for fun how coral reefs are formed. They are made from the skeletons of small coral animals. This makes them organic sedimentary rocks. Coral animals absorb calcium from the ocean and combine it with oxygen and carbon to form calcite, which is why their skeletons are so special. Coral reefs grow slowly over time, and are normally in warm water and close to shore. They are a precious resource(as A LOT of ocean organisms depend on them) and they take years and years to build. They help scientists understand how the earth used to be, which is very valuable to our history. I'll also include a little part about the rock cycle. Igneous rocks can be formed when plates collide and rocks are pushed so deep that they melt and form magma, or they can be formed when a volcano forms. Sedimentary rocks can be formed when plates collide and uplift. Over time, erosion leads to sediment, and sedimentary rock. Plates can also push rocks down where heat and pressure create metamorphic rocks. When metamorphic rocks are changed so many times, they are pushed into the mantle(part of earth's inside), and become molten magma, which eventually leads to an intrusive or extrusive igneous rock. This is why you can trust me: I get really good grades in science.
How was the balancing rock in Queensland formed?
The rocks are formed due to the erosional activity of air. The hard part remaining are the balancing rocks and the soft sediments around the rocks got eroded by the wind.
What was the greatest impact of the Silk Road?
Not true it was the greatest impact. It is just part of history. There are many things that have made a greater impact.
What part of speech is greatest common factor?
Two adjectives and a noun.
What kind of rock makes up the greatest part of metamorphic rocks and what percent?
minirals and 51 %
What makes up the greatest part of metamorphic rocks?
may be ignoious rock by violent valconic eruption due to high pressure and low tempresure
What ways are Metamorphic rock are like Sedimentary rocks?
They are both part of the ground?
When a sedimentary rock changes into a metamorphic rock what are the affects?
sedimentary rocks undergo metamorphism under certain heat and pressure to give the metamorphic rocks. the affect of this formation on environment is negligible as this frames the part of rock cycle. further these metamorphic rocks melts to form magma. magma further cools and solidify to form igneous rocks.
Can metamorphic rocks be part of an isolated system?
No. They will either be subducted into the mantle or uplifted and/or exposed to erosion.
How are sedimentary and metamorphic rocks similar?
They are all made of minerals. They are solid. They are part of the rock cycle.
What is a sentence for metamorphic rock?
Metamophic rock came from the volcano and it's part of rocks and minerals.
Why are fossil fuels NOT found in metamorphic rocks?
Because metamorphic rocks do not exist in the conditions needed to preserve fossils. Fossils need specific conditions to remove decaying factors and preserve the mineral part of the fossile.
What are the ingredients in metamorphic rock?
the layars of earth
What is the process called where igneous sedimentary or metamorphic rocks are changed by heat or pressure?
Your question contains part of the answer, 'metamorphic' rocks are the product of this process and the process is called Metamorphism - the solid-state recrystallization of pre-existing rocks as a result of changes in heat, pressure, and/or introduction of fluids.
Do non-foliated metamorphic rocks contain bands of crystals?
All rocks except volcanic or tectonic glasses have crystals. Therefore all metamorphic rocks have crystals, however in lower metamorphic environments these crystals may remain microscopically small.
What part of the rock cycle occur deep in earths crust?
The formation of intrusive igneous and metamorphic rocks.
