Plate Tectonics & Earth's Surface II Crossword Puzzle

QUESTIONS LIST:

• fractures : these are more likely to occur in rock near earth’s surface.
• elastic deformation : this is when bending or folding occurs when rock is subjected to slow, steady stress, but then returns to its original shaped when the stress is removed.
• continental slope : this is the term for the steep drop-off from the continental shelf into the trench.
• high : when rock is subjected to this type of temperature & pressure, it is more likely to bend than break.
• sedimentary : this is the type of rock that continental shelves are made of.
• transform fault : this is a crack (boundary) where plates grind against each other as they move horizontally past each other in opposite directions with no vertical movement.
• pressure : as horizontal plates move past each other, sometimes great friction causes them to get stuck. this builds at the locked location until it becomes so great that a sudden lurching of the plates occurs (earthquake).
• deeper : folds in rock are more likely to occur _ in earth, where temperature & pressure & overlying rock layers create a sandwich effect & keep the rock from fracturing.
• compression : this refers to pushing rock together to cause major folding.
• tear fault : this fault occurs when two plates slide horizontally past each other and surface area is neither created nor destroyed. this is also called a transform fault or strike-slip fault.
• tension : this refers to pulling apart rock to stretch & thin it, causing faults.
• brittle fracture : this occurs when rock is subjected to too much stress all at once.
• synclines : when rock layers are folded by compression, the downfolds are known as this.
• friction : because there is an enormous amount of this at the benioff zone between the diving plate & the leading edge of the over-riding plate, frequent earthquakes occur there.
• benioff : this earthquake zone is where a subducting plate descends into the mantle.