Alternating stripes of normal and reversed polarity paralleling the mid atlantic ridge.
Magnetic surveys of the ocean floor reveal.
The concept of seafloor spreading states that.
The magnetic variation in successive bands of ocean floor parallel with mid ocean ridges is important evidence supporting the theory of.
The concept of seafloor spreading states that.
In a reconstruction of earth s geologic past the continents of africa and south america fit best along the.
Magnetic stripes and isotopic clocks oceanographic exploration in the 1950s led to a much better understanding of the ocean floor.
C that reversed polarity is rare.
Plate tectonics states that.
Magnetic surveys of the ocean floor reveal.
Newly formed mineral grains on the ocean floor are magnetized according to the new orientation of the magnetic field.
Mapping of variation over an area is valuable in detecting structures obscured by overlying material.
Seafloor is created at mid ocean ridges and destroyed at deep ocean trenches.
B thin oceanic crust composed of basaltic rocks.
In geophysics a magnetic anomaly is a local variation in the earth s magnetic field resulting from variations in the chemistry or magnetism of the rocks.
Magnetic surveys of the ocean floors reveal a alternating stripes of normal and reversed polarity paralleling the mid atlantic ridge.
Magnetic surveys of the ocean floor reveal.
These patterns were unlike any seen for continental rocks.
Seafloor is created at mid ocean ridges and destroyed at deep ocean trenches.
Plate tectonics states that.
Magnetic surveys of the ocean floor reveal.