Biology, 07.11.2019 21:31 roseemariehunter12

What can you tell about igneous rock that is coarse grained? apex

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Coarse-grained igneous rocks occur when large crystals grow while the magma cools, usually this type of purple is called intrusive igneous rock.

Explanation:

Igneous rocks (from the Latin ignis, "fire") are formed by the crystallization of magma, a mass of molten rock that originates deep in the crust and in the upper mantle, where temperatures reach 700 ° C or more, which are necessary to melt most of the rocks. As magma slowly cools down inside the Earth, microscopic crystals begin to form. As the magma cools below the melting temperature, some of these crystals have time to grow up to a few millimeters or more before the entire mass is crystallized as a coarse-grained igneous rock. But when magma is extruded from a volcano on the Earth's surface, it cools and solidifies so quickly that individual crystals do not have time to gradually grow. In this case, many tiny crystals form simultaneously, and the result is a fine-grained igneous rock.

Large crystals grow as the magma cools, producing coarse-grained rocks. The intrusive igneous rocks can be recognized by their large intercrossed crystals, which develop slowly while the magma is gradually cooled. Granite is an intrusive igneous rock.

Answer from: Quest

condensation. good luck!

Answer from: Quest

answer: carbon 14 can only be used to determine the age of the organisms that were once living, and igneous rocks are non living.

explanation:

carbon 14 dating is used to determine the age of the sample by estimating the amount of carbon 14 present in the sample and then comparing it with a reference standard.carbon 14 is a isotope of carbon which is radioactive and unstable. carbon 14 is assimilated by all plants and animals throughout their life from carbon dioxide. however, one the organisms die they stop this assimilation and the carbon 14 content starts to decrease.by knowing how much of carbon 14 is left in an organism after his death, one can estimate the age of the organism. the materials whose age can be estimated by carbon 14 method are the organic compounds. however, some inorganic compounds such as aragonite shell can also be dated.however, if we consider the igneous rocks it is a non living component which never accumulated carbon 14 in it and thus, we cannot use carbon 14 dating method to estimate its age.

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