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- 1.
- 2. Copy the tablebelow on a sheet of paper. Draw and identify the type of stress, and its effects on rocks.
- 3. ROCKS Rocks and largemasses undergo deformation wherein it changes their shape, location, size, tilt or break due to squeezing or shearing.
- 4. When the rocksor plates are pulled or pushed together, stress may occur. Not only human can experience stress, rocks also experienced different kinds of stress.
- 5. In earth sciencesand geology, stress is the force per unit area that is placed on a rock. There are three main types of stress, namely, tension, compression, and shear.
- 6.
- 7. Tensional stress causesrocks to be pulled apart that result to lengthening and break apart. This type of stress can be found at divergent plate boundaries.
- 9.
- 10. Compressional stress causesrocks to fold or fracture. It squeezes rocks together. Compression is the most common type of stress in convergent plate boundaries.
- 12.
- 13. Shear stress happenswhen forces slide pass each other in opposite direction which results to slippage and translation. This is the most common stress found in transform plate boundaries.
- 17. Activity 1 Copy thetable below on a sheet of paper. Draw and identify the type of stress, and its effects on rocks.
- 18.
- 19. are formed whenrocks experienced compressive stress and deformed plastically. It causes bending of rocks. 1. Folds
- 20.
- 21. Monocline A monocline isa simple bend in the rock layers where the oldest rocks are at the bottom and the youngest are at the top.
- 23. Anticline An anticline isa fold that arches upward where the oldest rocks are found at the center of an anticline. The youngest rocks are covered over them at the top of the structure.
- 25. Syncline A syncline isa fold that bends downward which rocks are curved down to a center.
- 28. 2. Faults A rockunder ample stress can crack, or fracture. The fracture is called a joint because there is a block of rock left standing on either side of a fracture line.
- 29. 2. Faults The footwallis the rock that place on top the fault, while the hanging wall is below the fault.
- 30. Normal faults are themost common faults at divergent boundaries. In relation to the footwall, it develops as the hanging wall drops down. East African Rift is one of the examples of this type of fault.
- 32. Reverse faults This typeof fault is most common at the convergent boundaries. It forms when the hanging wall moves up. It creates the world’s highest mountain ranges such as Himalayas Mountains and Rocky Mountains.
- 34. Strike-slip faults This typeof faults formed when the walls move sideways. It can be either right lateral or left lateral. It is mostly common on transform plate boundaries. The most popular example of this type is San Andreas Fault.