Earth Sciences 2220A/B Study Guide - Final Guide: Seismic Refraction, Reflection Seismology, Seismic Wave

• School: Western University
• Department: Earth Sciences
• Course: Earth Sciences 2220A/B
• Professor: Robert Shcherbakov

Document Summary

Seismology: a branch of geophysics that investigates earths structure ad earthquakes using sound waves. It is our window into the earths interior. Geophysics: application of physics to the study of earth and planets. Includes physics of space and atmosphere, oceans and the interior of earth and planets. The heart of geophysics in the theory of solid earth. Geophysical investigations: taking measurements near or at the ea(cid:396)th(cid:859)s su(cid:396)fa(cid:272)e (cid:894)(cid:1005)(cid:1006)k(cid:373) do(cid:449)(cid:374)(cid:895). Measu(cid:396)e(cid:373)e(cid:374)ts a(cid:396)e i(cid:374)flue(cid:374)(cid:272)es by internal distribution of physical properties and reveal how the physical properties of the earth"s i(cid:374)terior vary vertically and laterally. ** core has an outer core (liquid) and an inner core (solid) Magnetism: ea(cid:396)th(cid:859)s (cid:373)ag(cid:374)eti(cid:272) field a(cid:374)d the presence of ore. The shape of the ea(cid:396)th a(cid:374)d pla(cid:374)ets a(cid:374)d existence of the solar system. Earthquakes: internal composition of the earth, plate tectonics, etc. Giant laboratory: using the earth, planets and solar system for investigation.