After reading this article you will learn about the primary and secondary minerals found in soil. Primary Minerals: 1. Feldspars: Feldspars belong to the group of minerals that are light in weight and are divided into orthoclase and plagioclase. In orthoclase, potassium is prominent. Plagioclase is divided into albite (high in sodium), anorthite (nigh in calcium), and oligoclase which consists [...]
After reading this article you will learn about the physical and chemical weathering of rocks and minerals. Physical Weathering of Rocks and Minerals: It is a mechanical process, causing disruption of consolidated massive rocks into smaller bits without any corresponding chemical change (or formation of new products). (a) Temperature: The alternate expansion and contraction of rocks due to variation in [...]
This article throws light upon the three main types of rocks found in soil. The types are: 1. Igneous Rocks 2. Sedimentary or Aqueous Rocks 3. Metamorphic Rocks. Type # 1. Igneous Rocks: Igneous rocks are those that have been formed by the action of heat. These rocks were the first to be formed when the molten mass cooled and [...]