ES + 5. Distribution Volcanoes, Earthquakes, and Mountain Ranges Flashcards
Distribution Volcanoes, Earthquakes, and Mountain Ranges
Directly Related, Direct Relationship
Ocean ridges+ More volcanoes + more epicenters + More plate boundaries > Heat Flow vice versa
Magnetic Reversal
The earths magnetic field flips in hundreds thousands years, its due to convection currents and plasticity of the layers of the earth. New crust forms along the mid ocean ridges and as it cools it forms it contains metals which align with the earths current magnetic field.
Magnetic SIgnature of rocks
MF direction is symmetrical
P waves
propagate in a parallel direction to the wave, longitudinal
S waves
propagate in a perpendicular direction to the wave, transverse
Love waves
Surface, side to side
Rayleigh waves
retrograde eliptical, up down side to side if u must my darling
How Does a Compass Point North?
The compass needle aligns itself with the Earth’s magnetic field. Right now, the needle points toward the magnetic North Pole.
The our magnets are attracted to the magentic south, which is our geographic north