Weathering of rocks leads to formation of sand, silt, and clay. On the basis of their mechanisms, following are the three types of weathering: 1. Physical Weathering 2. Chemical Weathering 3. Biological Weathering. Type # 1. Physical Weathering: Physical weathering of rocks is the breakdown of rocks into smaller size particles by pure mechanical processes without changing the chemical composition [...]
After reading this article you will learn about the three types of rocks. The types are: 1. Igneous Rocks 2. Sedimentary Rocks 3. Metamorphic Rocks. 1. Igneous Rocks: The earth cooled down some 4600 million years ago to form molten silicate material called magma that contained varying amounts of water and highly reactive fluids. The magma rapidly cooled down at [...]
After reading this article you will learn about:- 1. Meaning of Rocks 2. Occurrence of Soil Forming Rocks 3. Classification. Meaning of Rocks: The rocks which form the earth are made up of minerals. Rocks may be defined as the mixtures of two or more minerals. So their physical and chemical compositions vary with the characteristics of the minerals. Petrology [...]