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Rocks can be formed by particles of pebbles, sand or shells creating sedimentary rocks. When molten rock cools and hardens it will form igneous rocks. When there is pressure and intense heat on rocks, they form metamorphic rocks.
Wiki User
∙ 9y ago
Wiki User
∙ 13y agoIgneous rocks are formed by the cooling and crystalizing of lava or magma. Sedimentary rocks are formed when other rocks are weathered and eroded to sediment like sand, then they are compressed from pressure and cemented (water and other chemicals mix with the sediment to form a sticky paste that hardens after a while) and voila, you have a sedimentary rock. Metamorphic rocks form when igneous, sedimentary, or even other metamorphic rock are put under an enourmous amount of pressure and heat.
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How are rocks and grains different?
rocks are formed from grains and grains are small and the rocks are big. Sedimentary rocks are formed when grains or sediments are compacted together.
What are the different rates at which rocks cool?
Rocks cool at different rates due to how they were formed if they were formed intrusively or extrusively Examples of different igneous rocks that form differently is Granite and Gabbro form the same but different from Rhyolite.
Why are rocks not the same?
Because different rocks are formed by different processes and made up of different mineral assemblages.
How are igneous metamorphic and sedimentry rocks different?
because the way there formed is how there different
Why the rocks found near a volcano are different from the rocks found in the beach?
Rocks found by volcanoes are formed from lava and magma inside and outside the volcano. Rocks found along beaches are formed all kinds of different ways. It all depends on how the rock is formed
Are rocks the same as minerals?
Rocks are normally combinations of different minerals.
How do detrial rocks form?
Detrital rocks are formed from sedimentation of loose particles of rocks that are worn away from rocks from a different location.
Where did sediment come from?
Sedimentary rocks are formed from the erosion of different material from tops of mountains and hills. Sedimentary rocks are formed by the build up and ensuing consolidation of sediments into different types of rocks.
Why rocks have different colors?
because of the different elements that mix together and the place it has formed
Can metamorphic rocks be formed from other metamorphic rocks?
Yes, in a sense. Rocks can be metamorphosed multiple times, by different geologic events.
What are the three formation of minerals?
There are three different kinds of rocks, depending on how they were formed. Igneous rocks formed when melted rock cooled and hardened. Sedimentary rocks formed in layers from bits of older rocks and parts of animals or plants. These collect in low areas or under water and harden into rocks. Metamorphic rocks formed when either sedimentary, igneous, or earlier formed metamorphic rocks were put under pressure and heat deep in the earth's crust.
How are clastic limestone and fossiliferous limestone deposition different?
Clastic rocks are sedimentary rocks formed from pre-existing fragments of minerals. Fossiliferous rocks are formed in the same way, except that they contain fossils.
