Describe the formation of igneous

Describe the formation of igneous - 1. Describe the...

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1. Describe the formation of igneous, sedimentary, and metamorphic rocks? Ans:- Igneous rocks are formed when magma (or molten rocks) have cooled down and solidified. Sedimentary rocks are formed by the accumulation of other eroded substances, while Metamorphic rocks are formed when rocks change their original shape and form due to intense heat or pressure. 2. Continental heat flow is mostly produced by what? Ans :- Radioactivity in the underlying soil and rock strata . 3. Explain several factors for the crystallizing of magma within the earth to create the varieties of igneous intrusive rocks. Ans:- Factors that Affect Magma Formation Temperature Increases with depth Pressure Increases with depth Water Content Decreases melting point Mineral Composition Different minerals, different melting points. 4. How are fossils formed? Ans:- When an animal or plant dies its remains usually rot away to nothing. Sometimes though, when the conditions are just right and its remains can be buried quickly, it may be fossilized. There are several different ways fossils are formed. Here we go through the five steps of
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This note was uploaded on 07/28/2010 for the course DUS 28937414 taught by Professor Mr.rock during the Spring '10 term at Acton School of Business.

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Describe the formation of igneous - 1. Describe the...

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