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Igneous Rocks Igneous rocks are formed through the solidification and cooling of magma or lava. INTRUSIVE IGNEOUS ROCKS: →These rocks form when magma solidifies beneath the Earth's surface. The cooling process is slow, allowing for the formation of large crystals. Examples include granite and diorite. FORMATION EXTRUSIVE IGNEOUS ROCKS: → These rocks form when lava solidifies on the Earth's surface. The cooling process is rapid, resulting in the formation of small crystals or a glassy texture. Examples include basalt and pumice.
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TEXTURE - PHANERITIC Refers to the texture of an igneous rock with crystals that are visible to the naked eye. The crystals are typically of equal size or have a relatively uniform distribution. Examples include granite and gabbro. TEXTURE APHANITIC Describes the texture of an igneous rock with crystals that are too small to be seen without magnification. Aphanitic rocks often have a smooth or glassy appearance. Examples include basalt and andesite. TEXTURE PYROCLASTIC: Refers to igneous rocks that are formed from the consolidation of fragmented volcanic material, such as volcanic ash, pumice, and volcanic bombs. These rocks are typically composed of volcanic fragments of various sizes and can have a range of textures. TEXTURE PEGMATITIC: Describes the texture of an igneous rock that is characterized by exceptionally large crystals or mineral grains. Pegmatitic rocks often form in the late stages of magma cooling and are associated with the presence of water-rich fluids. Examples include pegmatite and graphic granite.
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QUESTIONS 1-2. What is the Two types of Igneous Rocks that based on their Formation?3-6. What is the 4 tyoes of Igneous Rocks that based on their Composition? 6-12. What is the 6 types of Igneous Rocks that based on their Texture? 13-15. What is the 3 main topic of our REPORT? Thank you for listening to our REPORT
