explain how the pairs of rocks are related to each other. what is the same; what is different and why? (a) granite and rhyolite (b) rhyolite and basalt (c) granite and granitic gneiss (d) limestone and marble

Respuesta :

a) granite and rhyolite, I will thus make a broad observation and state that a rhyolite and a granite are genetically identical (have the same composition). Please remember that this is not always accurate, although in most situations it is a good estimate. The only distinction between the rocks, assuming we accept the aforementioned to be accurate, is that one is plutonic and the other is volcanic.

An igneous rock known as a plutonic rock forms deep within the crust (can be 10s of kilometres deep). They are distinguished by big crystals that we refer to as being coarse-grained. An intrusive rock is another name for this kind of rock. It's a granite. As a result, granite and plagioclase can be seen in the Quartz-Alkali-Plagioclase (QAP) ternary diagram. Igneous rocks can be categorized into four different types of composition. These classifications are based on how much silica is present in the rock. Acidic, moderate, basic, and ultramafic are these. Granite and rhyolite are the two most prevalent varieties of acidic rock. They are made up similarly. When magma cools down inside the earth's crust, granite is created. It is a rock made of igneous intrusion. It is referred to as coarse-grained because the crystals are big. Granite and rhyolite have a close relationship. Granite differs from it because its crystals are significantly finer. Because the crystals are so minute, they cannot be seen with the human eye. It forms when lava cools down on or near the earth's surface, unlike granite.

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