Rock Classification

Rock Classification October 11, 1999 Classifying Rocks Rocks be categorise to make it easier on people to identify them in the future. This can be through with(predicate) with(p) by a numerous amount of ways. Each jaw type has their own specific ways, but there be two distinct characteristics that apply to all. These are texture and composition. These two, on with many others helps to classify torrid, sedimentary, and metamorphic rocks. Igneous rocks are class first by texture. This is broken down mainly into pinch size. First there are intrusive, or plutonic perfervid rocks. These types of rocks cool within the crust and forms large, visible crystals. The opposite would be extrusive, or volcanic rocks. These cool at the surface rapidly, forming minuscule grains. A combination of the two would be porphyritic, large grains in an aphanitic, or extrusive matrix. Secondly, composition is used to classify pyrogenetic rocks. There are four types, ultra mafic, mafic, intermediate, and felsic. Ultramaf...If you want to get a full essay, order it on our website: OrderEssay.net

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