After reading this article you will learn about:- 1. Definition of Joint 2. Classification of Joints 3. Engineering Consideration. Definition of Joint: Joints are cracks or fracture present in the rocks along which there has been no displacement. Joints occur in all types of rocks. They may be vertical, inclines or even horizontal. Their dip and strike are measured in [...]
After reading this article you will learn about:- 1. Types of Unconformity 2. Field Evidences of Unconformities 3. Uses. Types of Unconformity: There are mainly three types of unconformity. They are: 1. Disconformity, 2. Angular unconformity, and 3. Nonconformity. 1. Disconformity: The rock beds on opposite sides of a disconformity are parallel as shown in Fig. 4.36. 2. Angular Unconformity: [...]
The procedure of drawing a section consists of three steps: 1. Drawing a Topographic Profile 2. Determination of Dip and Strike 3. Construction of Geological Structures. Step # 1. Drawing a Topographic Profile: Suppose it is required to draw a topographic profile along a XY line on the geological map. The map is first folded along the XY line on [...]