1. Weathering and Erosion:
* Weathering: This is the breakdown of igneous rocks into smaller pieces due to exposure to elements like wind, rain, ice, and biological activity (like plant roots).
* Erosion: The weathered rock fragments are then transported away from their original location by wind, water, or ice.
2. Sedimentation and Lithification:
* Sedimentation: The transported rock fragments, along with other eroded materials, settle down in a new location, usually in layers.
* Lithification: Over time, the layers of sediment are compacted by the weight of overlying layers and cemented together by minerals dissolved in groundwater. This process forms sedimentary rocks from the broken-down igneous material.
3. Metamorphism:
* Heat and Pressure: Igneous rocks can be buried deep within the Earth's crust and exposed to intense heat and pressure from tectonic activity. This process can transform the igneous rock's mineral composition and texture, creating metamorphic rocks.
Here's a simplified breakdown:
* Igneous Rock -> Weathering and Erosion -> Sedimentary Rock
* Igneous Rock -> Heat and Pressure -> Metamorphic Rock
It's important to note that the rock cycle is a continuous process, and these transformations can happen in various sequences and over different timescales. One type of rock can change into another, and then back again, in a constantly evolving process.
