GEOL 106 Lecture 3: Earth's Interior

17 views6 pages

Document Summary

*diagram in textbook on earths core mesosphere not labeled in textbook. Structure can look at two ways: classified by chemical composition. Core iron, 3486 km: classified by physical properties. Evidence: deep parts of earth must be studied indirectly. Direct access only available to crustal rocks and small fragments or upper mantle. Seismology the study of earthquakes and seismic waves as they pass through the earth: x-ray the earth, an earthquakes the vibration of the earth produces by the rapid release of energy. Energy released radiates in all directions: types of seismic waves. P waves push-pull: travel faster than s waves, travel through any material. S waves are side to side: cannot travel through liquids, more wave details. Within given layer, seismic wave velocity usually increases with increasing depth below surface. Wave velocity increases with velocity and density. Elasticity increases with depth, as does density.

Get access

Grade+20% off
$8 USD/m$10 USD/m
Billed $96 USD annually
Grade+
Homework Help
Study Guides
Textbook Solutions
Class Notes
Textbook Notes
Booster Class
40 Verified Answers
Class+
$8 USD/m
Billed $96 USD annually
Class+
Homework Help
Study Guides
Textbook Solutions
Class Notes
Textbook Notes
Booster Class
30 Verified Answers

Related Documents