16th October 2019

wikipedia
16

How is a rock created?

Sedimentary rocks are formed through the gradual accumulation of sediments: for example, sand on a beach or mud on a river bed. Metamorphic rocks are rocks which once existed as igneous or sedimentary rocks but have been subjected to varying degrees of pressure and heat within the Earth's crust.

In this manner, what makes a rock?

They are very tiny grains of different minerals, compressed together in chemical reaction to form a bigger mass. Rocks make up non-water part of the earth's crust. A mineral and a rock do not mean the same thing. Minerals are made of individual or a combination of elements.

What is the definition of a rock formation?

A rock formation is an isolated, scenic, or spectacular surface rock outcrop. Rock formations are usually the result of weathering and erosion sculpting the existing rock. The term 'rock formation' can also refer to specific sedimentary strata or other rock unit in stratigraphic and petrologic studies.

What is a rock and what is it made of?

The Earth is covered in a layer of solid rock called the crust. Rocks are either SEDIMENTARY , IGNEOUS, or METAMORPHIC. Almost all rocks made of minerals, but different rocks contain different mixtures of minerals. Granite, for example, consists of quartz, feldspar, and mica.
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