Volcanic Rocks are Magnetized??
Well here we go again - magnetic volcanic rocks - put the threads together - what have we found in our reseach
1) Magnetic fields on the sun
2) Magnetic pathways turtles are believed to follow to find their way around the globe
3) Magnetic pathways sharks are believed to follow as well
4) Read yet more info on magnets and their pervasive nature as part of who and literally what we are.....
Testing the Sea-Floor Spreading HypothesisBefore being widely accepted, a new hypothesis must be tested. One test for the sea-floor-spreading hypothesis involved magnetic patterns on the sea floor.
In the late 1950's, scientists mapped the present-day magnetic field generated by rocks on the floor of the Pacific Ocean. The volcanic rocks which make up the sea floor have magnetization because, as they cool, magnetic minerals within the rock align to the Earth's magnetic field. The intensity of the magnetic field they measured was very different from the intensity they had calculated. Thus, the scientists detected magnetic anomalies, or differences in the magnetic field from place to place. They found positive and negative magnetic anomalies. Positive magnetic anomalies are places where the magnetic field is stronger than expected. Positive magnetic anomalies are induced when the rock cools and solidifies with the Earth's north magnetic pole in the northern geographic hemisphere.......Read on......http://volcano.und.edu/vwdocs/vwlessons/plate_tectonics/part9.html
Posted by Jay Roberts at 03:50 AM | Permalink