1. Classify the igneous rocks according to their depths and evaluate them in terms of their usability...

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Civil Engineering

1.Classify the igneous rocks according to their depths and evaluatethem in terms of their usability as foundation, tunnel and material(such as aggregate, anchoring, building block).

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Answer Igneous Rock Igneous rocks are those that solidify from magma a molten mixture of rockforming minerals and usually volatiles such as gases and steam Since their constituent minerals are crystallized from molten material igneous rocks are formed at high temperatures They originate from processes deep within the Earthtypically at depths of about 50 to 200 kilometres 30 to 120 milesin the mid to lowercrust or in the upper mantle Igneous rocks are subdivided into two categories intrusive emplaced in the crust and extrusive extruded onto the surface of the land or ocean bottom in which case the cooling molten material is called lava Generally base rock especially of igneous See Answer

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