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 [...]
After reading this article you will learn about the uses of compass clinometer, with the help of diagram. The dip and strike of an exposed bed in the field can be measured in degrees by an instrument, known as a clinometer, which consists of a pendulum with a graduated arc. A compass can measure the directions of the dip and [...]