Download paleomagnetism lab procedure

Survey
yes no Was this document useful for you?
   Thank you for your participation!

* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project

Document related concepts

History of geomagnetism wikipedia, lookup

Lorentz force wikipedia, lookup

Electromagnet wikipedia, lookup

Magnetic monopole wikipedia, lookup

Ferromagnetism wikipedia, lookup

Magnetoreception wikipedia, lookup

Electromagnetism wikipedia, lookup

Neutron magnetic moment wikipedia, lookup

Magnetohydrodynamics wikipedia, lookup

Force between magnets wikipedia, lookup

Magnetism wikipedia, lookup

Magnetochemistry wikipedia, lookup

Multiferroics wikipedia, lookup

Ferrofluid wikipedia, lookup

Magnet wikipedia, lookup

Magnetic nanoparticles wikipedia, lookup

Giant magnetoresistance wikipedia, lookup

Magnetotellurics wikipedia, lookup

Earth's magnetic field wikipedia, lookup

Magnetotactic bacteria wikipedia, lookup

Electromagnetic field wikipedia, lookup

Magnetometer wikipedia, lookup

Magnetic stripe card wikipedia, lookup

Edward Sabine wikipedia, lookup

Compass wikipedia, lookup

Geomagnetic storm wikipedia, lookup

Transcript
Name_____________________________________________Class_______________Date____________
Station 6 PALEOMAGNETISM – MAGNETIC MEMORIES
*Have one of your group members see me to trade a shoe for a compass.
1. Draw a sketch of the model. It should have SIX (6) ridges and a central zone.
2. Place the compass in the middle on top of each of the six ridges so that N on the compass is
toward the N side of the model (if you are not getting needle readings that are N or S get me for
help). On your sketch, record the direction that the colored tip of the compass needle points for
each ridge.
3. Using your pencil shade the zones/ridges where the needle points toward N.
4. Do you see a pattern? Briefly describe it.
5. Explain what is happening in the central zone by drawing and writing on your diagram.
6. Where are the oldest rocks? Where are the youngest? Explain how this sequence makes sense.
Hints:
When minerals containing iron crystallize, they “lock in” the existing magnetic field of the Earth. A
record of the Earth’s changing magnetic field is recorded in rocks that form where plates separate.
Where plates separate, magma (molten rock beneath the surface) flows up through the gap to create
new crust.
Ships and airplanes carry magnetometers to measure magnetic fields remotely.