GEOL 114 Lecture Notes - Lecture 3: Standing Wave, Normal Mode
Document Summary
First wave (p) is like the wake of a boat. There are a lot of layers in the earth; the speed of the waves tends to get faster as you go down (velocity of p and s waves). The deeper you get, the more rock there is above you. Minerals in the rock are being squeezed together, which will increase rigidity. Mode conversions partition into multiple things going different directions: the only exception is if you hit it perpendicular or the other side is a. A p-waves come to us and to the other side, but when hitting the wall you are also shearing the wall also causing s-waves to transmit through the wall and to us. There is a partitioning of p waves and s waves at every source of impact: doesn"t matter which wave is made on the wall, both p & s will liquid. Can"t hear an s wave into a liquid (cid:523)ex:air(cid:524)
