Author: Ibrahim
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Rocks Sedimentary
These rocks are formed by the weathering of natural elements on the original rock and its subsequent transport by wind, rivers, glaciers and seas and deposition in different places. The following four types of deposits are found.
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Rocks Metamorphics
These rocks are formed by changes in the character of pre-existing rocks. Igneous as well as sedimentary rocks change character when they are subjected to intense heat and pressure. The process of change is called metamorphism.Gives names of original and metamorphic rocks. The mineral composition and composition of a rock represents a system in equilibrium…
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Rock Igneous
The molten material in the interior of the Earth’s surface is known as magma, and this magma occasionally tries to seep through cracks or weak areas to the Earth’s surface. Rocks that are formed by the cooling of magma are called igneous rocks. The portion of lava that comes to the surface cools rapidly and…
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Classification Of Geographical
According to the mode of origin, the stones are divided into three principal classes or groups, : Igneous rocks. Metamorphic rocks.Sedimentary rocks.
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Rocks Classification
Rocks are classified in four different ways: Geological classificationChemical classification Practical classificationPhysiological classification
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Sand pit
This sand is obtained by making pits in the soil. It is excavated to a depth of about 1-2 meters from the ground surface. This sand is found as deposits in soil and has sharp angular grains, which are free of salts. It serves as an excellent material for mortar or concrete work. Pit sand…
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Natural Sources of Sand
Sand is formed by weathering of rocks, Based on the natural sources from which sand is obtained, it is classified as follows: pit sand Sea sandRiver sand