Metamorphic processes cannot be either observed directly or demonstrated practically. They are very gradual, large-scale processes involving geological times measurable in terms of millions of years. It is only through the study of their effects on the rocks that conclusions can be drawn regarding the nature of the process through which those rocks have passed. […]
Examples of Metamorphic Changes in Rocks | Geology
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Mineral Ore Deposits: Meaning, Origin and Types | Geology
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In this article we will discuss about:- 1. Introduction to Ore Deposits 2. Origin of Ore Deposits 3. Types. Introduction to Ore Deposits: Minerals form chief source of all the industrial metals and non-metals. The commonly used metals like aluminum, copper, iron, lead, zinc etc. are all manufactured using minerals as raw materials. Similarly non-metals […]
List of Important Igneous Rocks | Geology
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Here is a list of eleven most important igneous rocks: 1. Granites 2. Diorite 3. Andesite 4. Syenites 5. Gabbro 6. Dolerites 7. Basalts 8. Pegmatites 9. Aplites 10. Lamprophyres 11. Peridotites. 1. Granites: Granites may be defined as plutonic light coloured igneous rocks. These are among the most common igneous rocks. The word granite […]