GLG 112 1st Edition Lecture 10Outline of Last Lecture The Rock CycleI. Rocks and mineralsA. Definitions1. Rock2. MineralB. Types of Rocks1. Igneous Rocksa. Intrusiveb. Extrusive2. Sedimentary Rocksc. Detritald. Chemical 3. Metamorphic Rockse. Foliatedf. Non-foliatedOutline of Current Lecture FaultsII. Strike-slip faultsA. Left-lateral B. Right-lateralIII. Dip Slip faultsA. Normal faultB. Reverse faultCurrent LectureA Fault is a crack in the earth with movement.Strike-slip faults have a horizontal movement. These notes represent a detailed interpretation of the professor’s lecture. GradeBuddy is best used as a supplement to your own notes, not as a substitute.Two types: left-lateral and right-lateralLeft-lateral strike-slip faults are where the top moves to the left in the event of an earthquake.Right-lateral strike-slip faults are where the top moves to the right in the event of an earthquake. The stress is shear and the plate boundary is transform.**all transform boundaries have strike-slip faults but not all strike-slip faults are on transform boundaries.Dip-slip faults have a vertical movement. There are two types:A normal dip-slip fault is where the hanging wall moves down. The stress is tension and the plate boundary is divergent. The hanging wall is the top of the fault and the foot wall is the bottom.**Flagstaff has normal faults even though we are not on a plate boundary.A Reverse fault is one where the top (hanging wall) moves up. The stress is compression and the plate boundary is convergent. **again, there can also be reverse faults in places not on a
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