Question

What is rock cycle. Explain with a help of a digram

Answer 1

The rock cycle is a basic concept in geology that describes the time-consuming transitions through geologic time among the three main rock types: sedimentary, metamorphic, and igneous. As the adjacent diagram illustrates, each of the types of rocks is altered or destroyed when it is forced out of its equilibrium conditions. An igneous rock such as basalt may break down and dissolve when exposed to the atmosphere, or melt as it is subducted under a continent. Due to the driving forces of the rock cycle, plate tectonics and the water cycle, rocks do not remain in equilibrium and are forced to change as they encounter new environments. The rock cycle is an illustration that explains how the three rock types are related to each other, and how processes change from one type to another over time. This cyclical aspect makes rock change a geologic cycle and, on planets containing life, a biogeochemical cycle.

Answer 2

When magma cools it solidifies to become igneous rocks. These igneous rocks broke down into small particles that are transported and then it gets deposited to form another type of rock called sedimentary rocks. When the igneous and sedimentary rocks get pressure and heat they turn into metamorphic rocks. The metamorphic rocks which are very Hest and pressurised melt down to hot molten magma. This molten magma again cool down and form igneous rock. Like this the cycle continues.
The transformation of the rocks from one to another rock is called as rock cycle.