Earth Materials and the Cycle of Rock Change

Earth Materials and the Cycle of Rock Change -...

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Earth Materials and the Cycle of Rock Change  OVERVIEW   This is the first chapter of Part II which deals with the systems and cycles of the solid  earth. This chapter discusses the basic materials of the solid earth - rock and minerals -  and some principals of their formation. These are linked to the cycle of rock change  which describes how different rock types develop as earth materials are cycled and  recycled through geologic time.  The elements  oxygen  and  silicon  account for about 75% of the  earth's crust while the  metallic elements  iron, aluminum and the  base elements  account for  most of the rest.  The elements of the crust are combined in inorganic chemical compounds called  minerals These minerals are mixed together in various proportions to form many kinds of  rock The rocks of the earth's crust are grouped into 
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Earth Materials and the Cycle of Rock Change -...

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