the earth's crust and useful minerals

powerpoint presentation the earth's crust and useful minerals xidirova obida 1. earth's crust: structure and composition 2. extraction, uses, and environmental impact 3. major useful minerals and their properties plan: introduction to the earth's crust the earth's crust, averaging only 30-50 kilometers thick, is a remarkably thin outermost layer compared to the significantly larger mantle and core, representing less than 1% of earth's total volume. plate tectonics, driven by mantle convection, continuously reshapes the earth's crust through processes like subduction, where denser oceanic plates sink beneath continental plates, leading to volcanic activity and mountain building. formation of minerals sedimentary processes concentrate minerals like halite (rock salt) through evaporation of s...

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