Strike: Horizontal Line Direction
The term describing the direction of a horizontal line on an inclined rock strata is known as the strike.
Understanding Geological Terms
In structural geology:
- Strike: This is the compass direction of a line that lies perfectly horizontal on an inclined geological surface (like a rock layer or fault plane). It is perpendicular to the direction of the dip.
- Dip: This is the angle measured downwards from the horizontal plane, representing how steeply a rock layer is inclined. The direction of dip is perpendicular to the strike.
- Anticline: This refers to an upward-arching fold in rock layers, forming a ridge-like structure.
- Syncline: This refers to a downward-arching fold in rock layers, forming a trough-like structure.
Therefore, the direction of a horizontal line on inclined strata is the strike.
Important Questions from Geomorphology
Which one of the following is not an igneous rock?
Which of the following statements is/are correct?
1. Hypocenter is the point on the surface of the Earth, nearest to the focus.
2. Velocity of earthquake waves is higher in denser materials.
3. P waves move faster and are the first to arrive at the surface of the Earth.
Select the correct answer using the code given below:
Which one of the following is the lowermost/innermost intrusive igneous rock?
The formation of ‘tors’ on small rocky hills is associated with which among the following?
Which one of the following statements about metamorphic rocks is not correct?
