Question

Exercise 2: Map Symbols (7 marks) 1. On the blank map below of a region with no hills or valleys, draw the appropriate strike and dip symbol next to the appropriate point. To do this, you must use a protractor and measure the angle between the north direction the side edge of the map) and the strike angle. Then, look at the direction of dip so that you put the dip tick on the correct side of the strike symbol. These points are on a contact between two formations (3). a. 045/30. SE b. 2800/10-SW c. 3500/250W 2. Based on the strike and dip symbols you show, draw a line representing the contact that passes through these points. Remember, the line needs to be parallel to the strike symbol. (3) 3. What is the structure shown by the structure symbols? (1)_ Blank map. N

Answer 1

All the symbols have been drawn at the corresponding points. The lines of structure have been drawn with red lines. All the points are showing that the structure is folded in nature. So, this is the outcrop pattern of a fold. This fold is dipping towards the center of the structure at all the points. So, this is an example of synformal fold.
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Blank map. 280° B 45o 45° 10° A *350 Center of the structure 350° 250 c