Rock Classification October 11, 1999 Classifying Rocks Rocks argon sort out to feign it easier on people to identify them in the future. This can be through by a numerous amount of ways. separately thrill type has their own specific ways, but on that point atomic number 18 two distinct characteristics that apply to all. These are caryopsis and composition. These two, on with many others helps to furcate flaming, sedimentary, and metamorphic rocks. Igneous rocks are classified first by texture. This is broken down generally into atom size. First there are intrusive, or irruptive eruptive rocks.
These types of rocks cool within the crust and forms ample, visible crystals. The face-to-face would be extrusive, or volcanic rocks. These cool at the surface rapidly, forming mid set grains. A combination of the two would be porphyritic, large grains in an aphanitic, or extrusive matrix. Secondly, composition is used to classify igneous rocks. There are four types, ultramafic, mafic, intermediate, and felsic. ...If you want to get a full essay, order it on our website:
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